diff options
-rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 12 | ||||
-rw-r--r-- | Documentation/filesystems/f2fs.txt | 29 | ||||
-rw-r--r-- | fs/f2fs/acl.c | 8 | ||||
-rw-r--r-- | fs/f2fs/checkpoint.c | 208 | ||||
-rw-r--r-- | fs/f2fs/data.c | 106 | ||||
-rw-r--r-- | fs/f2fs/debug.c | 12 | ||||
-rw-r--r-- | fs/f2fs/dir.c | 85 | ||||
-rw-r--r-- | fs/f2fs/f2fs.h | 105 | ||||
-rw-r--r-- | fs/f2fs/file.c | 31 | ||||
-rw-r--r-- | fs/f2fs/gc.c | 16 | ||||
-rw-r--r-- | fs/f2fs/inline.c | 4 | ||||
-rw-r--r-- | fs/f2fs/inode.c | 27 | ||||
-rw-r--r-- | fs/f2fs/namei.c | 9 | ||||
-rw-r--r-- | fs/f2fs/node.c | 334 | ||||
-rw-r--r-- | fs/f2fs/node.h | 25 | ||||
-rw-r--r-- | fs/f2fs/recovery.c | 37 | ||||
-rw-r--r-- | fs/f2fs/segment.c | 222 | ||||
-rw-r--r-- | fs/f2fs/segment.h | 75 | ||||
-rw-r--r-- | fs/f2fs/super.c | 97 | ||||
-rw-r--r-- | fs/f2fs/xattr.c | 7 | ||||
-rw-r--r-- | include/linux/f2fs_fs.h | 2 |
21 files changed, 939 insertions, 512 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 32b0809..62dd725 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -55,3 +55,15 @@ Date: January 2014 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> Description: Controls the number of trials to find a victim segment. + +What: /sys/fs/f2fs/<disk>/dir_level +Date: March 2014 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the directory level for large directory. + +What: /sys/fs/f2fs/<disk>/ram_thresh +Date: March 2014 +Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> +Description: + Controls the memory footprint used by f2fs. diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index b8d2849..25311e11 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -122,6 +122,10 @@ disable_ext_identify Disable the extension list configured by mkfs, so f2fs inline_xattr Enable the inline xattrs feature. inline_data Enable the inline data feature: New created small(<~3.4k) files can be written into inode block. +flush_merge Merge concurrent cache_flush commands as much as possible + to eliminate redundant command issues. If the underlying + device handles the cache_flush command relatively slowly, + recommend to enable this option. ================================================================================ DEBUGFS ENTRIES @@ -169,9 +173,11 @@ Files in /sys/fs/f2fs/<devname> reclaim_segments This parameter controls the number of prefree segments to be reclaimed. If the number of prefree - segments is larger than this number, f2fs tries to - conduct checkpoint to reclaim the prefree segments - to free segments. By default, 100 segments, 200MB. + segments is larger than the number of segments + in the proportion to the percentage over total + volume size, f2fs tries to conduct checkpoint to + reclaim the prefree segments to free segments. + By default, 5% over total # of segments. max_small_discards This parameter controls the number of discard commands that consist small blocks less than 2MB. @@ -195,6 +201,17 @@ Files in /sys/fs/f2fs/<devname> cleaning operations. The default value is 4096 which covers 8GB block address range. + dir_level This parameter controls the directory level to + support large directory. If a directory has a + number of files, it can reduce the file lookup + latency by increasing this dir_level value. + Otherwise, it needs to decrease this value to + reduce the space overhead. The default value is 0. + + ram_thresh This parameter controls the memory footprint used + by free nids and cached nat entries. By default, + 10 is set, which indicates 10 MB / 1 GB RAM. + ================================================================================ USAGE ================================================================================ @@ -444,9 +461,11 @@ The number of blocks and buckets are determined by, # of blocks in level #n = | `- 4, Otherwise - ,- 2^n, if n < MAX_DIR_HASH_DEPTH / 2, + ,- 2^ (n + dir_level), + | if n < MAX_DIR_HASH_DEPTH / 2, # of buckets in level #n = | - `- 2^((MAX_DIR_HASH_DEPTH / 2) - 1), Otherwise + `- 2^((MAX_DIR_HASH_DEPTH / 2 + dir_level) - 1), + Otherwise When F2FS finds a file name in a directory, at first a hash value of the file name is calculated. Then, F2FS scans the hash table in level #0 to find the diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c index fa8da4c..e93e4ec 100644 --- a/fs/f2fs/acl.c +++ b/fs/f2fs/acl.c @@ -174,7 +174,7 @@ struct posix_acl *f2fs_get_acl(struct inode *inode, int type) retval = f2fs_getxattr(inode, name_index, "", NULL, 0); if (retval > 0) { - value = kmalloc(retval, GFP_KERNEL); + value = kmalloc(retval, GFP_F2FS_ZERO); if (!value) return ERR_PTR(-ENOMEM); retval = f2fs_getxattr(inode, name_index, "", value, retval); @@ -203,6 +203,12 @@ static int __f2fs_set_acl(struct inode *inode, int type, size_t size = 0; int error; + if (acl) { + error = posix_acl_valid(acl); + if (error < 0) + return error; + } + switch (type) { case ACL_TYPE_ACCESS: name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS; diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 293d048..4aa521a 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -33,14 +33,12 @@ struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) struct address_space *mapping = META_MAPPING(sbi); struct page *page = NULL; repeat: - page = grab_cache_page(mapping, index); + page = grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); if (!page) { cond_resched(); goto repeat; } - /* We wait writeback only inside grab_meta_page() */ - wait_on_page_writeback(page); SetPageUptodate(page); return page; } @@ -75,23 +73,102 @@ out: return page; } +inline int get_max_meta_blks(struct f2fs_sb_info *sbi, int type) +{ + switch (type) { + case META_NAT: + return NM_I(sbi)->max_nid / NAT_ENTRY_PER_BLOCK; + case META_SIT: + return SIT_BLK_CNT(sbi); + case META_SSA: + case META_CP: + return 0; + default: + BUG(); + } +} + +/* + * Readahead CP/NAT/SIT/SSA pages + */ +int ra_meta_pages(struct f2fs_sb_info *sbi, int start, int nrpages, int type) +{ + block_t prev_blk_addr = 0; + struct page *page; + int blkno = start; + int max_blks = get_max_meta_blks(sbi, type); + + struct f2fs_io_info fio = { + .type = META, + .rw = READ_SYNC | REQ_META | REQ_PRIO + }; + + for (; nrpages-- > 0; blkno++) { + block_t blk_addr; + + switch (type) { + case META_NAT: + /* get nat block addr */ + if (unlikely(blkno >= max_blks)) + blkno = 0; + blk_addr = current_nat_addr(sbi, + blkno * NAT_ENTRY_PER_BLOCK); + break; + case META_SIT: + /* get sit block addr */ + if (unlikely(blkno >= max_blks)) + goto out; + blk_addr = current_sit_addr(sbi, + blkno * SIT_ENTRY_PER_BLOCK); + if (blkno != start && prev_blk_addr + 1 != blk_addr) + goto out; + prev_blk_addr = blk_addr; + break; + case META_SSA: + case META_CP: + /* get ssa/cp block addr */ + blk_addr = blkno; + break; + default: + BUG(); + } + + page = grab_cache_page(META_MAPPING(sbi), blk_addr); + if (!page) + continue; + if (PageUptodate(page)) { + mark_page_accessed(page); + f2fs_put_page(page, 1); + continue; + } + + f2fs_submit_page_mbio(sbi, page, blk_addr, &fio); + mark_page_accessed(page); + f2fs_put_page(page, 0); + } +out: + f2fs_submit_merged_bio(sbi, META, READ); + return blkno - start; +} + static int f2fs_write_meta_page(struct page *page, struct writeback_control *wbc) { struct inode *inode = page->mapping->host; struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); - /* Should not write any meta pages, if any IO error was occurred */ - if (unlikely(sbi->por_doing || - is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG))) + if (unlikely(sbi->por_doing)) goto redirty_out; - if (wbc->for_reclaim) goto redirty_out; - wait_on_page_writeback(page); + /* Should not write any meta pages, if any IO error was occurred */ + if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG))) + goto no_write; + f2fs_wait_on_page_writeback(page, META); write_meta_page(sbi, page); +no_write: dec_page_count(sbi, F2FS_DIRTY_META); unlock_page(page); return 0; @@ -99,6 +176,7 @@ static int f2fs_write_meta_page(struct page *page, redirty_out: dec_page_count(sbi, F2FS_DIRTY_META); wbc->pages_skipped++; + account_page_redirty(page); set_page_dirty(page); return AOP_WRITEPAGE_ACTIVATE; } @@ -107,21 +185,23 @@ static int f2fs_write_meta_pages(struct address_space *mapping, struct writeback_control *wbc) { struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb); - int nrpages = MAX_BIO_BLOCKS(max_hw_blocks(sbi)); - long written; - - if (wbc->for_kupdate) - return 0; + long diff, written; /* collect a number of dirty meta pages and write together */ - if (get_pages(sbi, F2FS_DIRTY_META) < nrpages) - return 0; + if (wbc->for_kupdate || + get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) + goto skip_write; /* if mounting is failed, skip writing node pages */ mutex_lock(&sbi->cp_mutex); - written = sync_meta_pages(sbi, META, nrpages); + diff = nr_pages_to_write(sbi, META, wbc); + written = sync_meta_pages(sbi, META, wbc->nr_to_write); mutex_unlock(&sbi->cp_mutex); - wbc->nr_to_write -= written; + wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); + return 0; + +skip_write: + wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); return 0; } @@ -148,10 +228,22 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i]; + lock_page(page); - f2fs_bug_on(page->mapping != mapping); - f2fs_bug_on(!PageDirty(page)); - clear_page_dirty_for_io(page); + + if (unlikely(page->mapping != mapping)) { +continue_unlock: + unlock_page(page); + continue; + } + if (!PageDirty(page)) { + /* someone wrote it for us */ + goto continue_unlock; + } + + if (!clear_page_dirty_for_io(page)) + goto continue_unlock; + if (f2fs_write_meta_page(page, &wbc)) { unlock_page(page); break; @@ -216,16 +308,15 @@ void release_orphan_inode(struct f2fs_sb_info *sbi) void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) { - struct list_head *head, *this; - struct orphan_inode_entry *new = NULL, *orphan = NULL; + struct list_head *head; + struct orphan_inode_entry *new, *orphan; new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC); new->ino = ino; spin_lock(&sbi->orphan_inode_lock); head = &sbi->orphan_inode_list; - list_for_each(this, head) { - orphan = list_entry(this, struct orphan_inode_entry, list); + list_for_each_entry(orphan, head, list) { if (orphan->ino == ino) { spin_unlock(&sbi->orphan_inode_lock); kmem_cache_free(orphan_entry_slab, new); @@ -234,14 +325,10 @@ void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) if (orphan->ino > ino) break; - orphan = NULL; } - /* add new_oentry into list which is sorted by inode number */ - if (orphan) - list_add(&new->list, this->prev); - else - list_add_tail(&new->list, head); + /* add new orphan entry into list which is sorted by inode number */ + list_add_tail(&new->list, &orphan->list); spin_unlock(&sbi->orphan_inode_lock); } @@ -255,10 +342,11 @@ void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) list_for_each_entry(orphan, head, list) { if (orphan->ino == ino) { list_del(&orphan->list); - kmem_cache_free(orphan_entry_slab, orphan); f2fs_bug_on(sbi->n_orphans == 0); sbi->n_orphans--; - break; + spin_unlock(&sbi->orphan_inode_lock); + kmem_cache_free(orphan_entry_slab, orphan); + return; } } spin_unlock(&sbi->orphan_inode_lock); @@ -285,6 +373,8 @@ void recover_orphan_inodes(struct f2fs_sb_info *sbi) start_blk = __start_cp_addr(sbi) + 1; orphan_blkaddr = __start_sum_addr(sbi) - 1; + ra_meta_pages(sbi, start_blk, orphan_blkaddr, META_CP); + for (i = 0; i < orphan_blkaddr; i++) { struct page *page = get_meta_page(sbi, start_blk + i); struct f2fs_orphan_block *orphan_blk; @@ -466,14 +556,12 @@ static int __add_dirty_inode(struct inode *inode, struct dir_inode_entry *new) { struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct list_head *head = &sbi->dir_inode_list; - struct list_head *this; + struct dir_inode_entry *entry; - list_for_each(this, head) { - struct dir_inode_entry *entry; - entry = list_entry(this, struct dir_inode_entry, list); + list_for_each_entry(entry, head, list) if (unlikely(entry->inode == inode)) return -EEXIST; - } + list_add_tail(&new->list, head); stat_inc_dirty_dir(sbi); return 0; @@ -483,6 +571,7 @@ void set_dirty_dir_page(struct inode *inode, struct page *page) { struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct dir_inode_entry *new; + int ret = 0; if (!S_ISDIR(inode->i_mode)) return; @@ -492,13 +581,13 @@ void set_dirty_dir_page(struct inode *inode, struct page *page) INIT_LIST_HEAD(&new->list); spin_lock(&sbi->dir_inode_lock); - if (__add_dirty_inode(inode, new)) - kmem_cache_free(inode_entry_slab, new); - - inc_page_count(sbi, F2FS_DIRTY_DENTS); + ret = __add_dirty_inode(inode, new); inode_inc_dirty_dents(inode); SetPagePrivate(page); spin_unlock(&sbi->dir_inode_lock); + + if (ret) + kmem_cache_free(inode_entry_slab, new); } void add_dirty_dir_inode(struct inode *inode) @@ -506,44 +595,47 @@ void add_dirty_dir_inode(struct inode *inode) struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct dir_inode_entry *new = f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS); + int ret = 0; new->inode = inode; INIT_LIST_HEAD(&new->list); spin_lock(&sbi->dir_inode_lock); - if (__add_dirty_inode(inode, new)) - kmem_cache_free(inode_entry_slab, new); + ret = __add_dirty_inode(inode, new); spin_unlock(&sbi->dir_inode_lock); + + if (ret) + kmem_cache_free(inode_entry_slab, new); } void remove_dirty_dir_inode(struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); - - struct list_head *this, *head; + struct list_head *head; + struct dir_inode_entry *entry; if (!S_ISDIR(inode->i_mode)) return; spin_lock(&sbi->dir_inode_lock); - if (atomic_read(&F2FS_I(inode)->dirty_dents)) { + if (get_dirty_dents(inode)) { spin_unlock(&sbi->dir_inode_lock); return; } head = &sbi->dir_inode_list; - list_for_each(this, head) { - struct dir_inode_entry *entry; - entry = list_entry(this, struct dir_inode_entry, list); + list_for_each_entry(entry, head, list) { if (entry->inode == inode) { list_del(&entry->list); - kmem_cache_free(inode_entry_slab, entry); stat_dec_dirty_dir(sbi); - break; + spin_unlock(&sbi->dir_inode_lock); + kmem_cache_free(inode_entry_slab, entry); + goto done; } } spin_unlock(&sbi->dir_inode_lock); +done: /* Only from the recovery routine */ if (is_inode_flag_set(F2FS_I(inode), FI_DELAY_IPUT)) { clear_inode_flag(F2FS_I(inode), FI_DELAY_IPUT); @@ -554,15 +646,14 @@ void remove_dirty_dir_inode(struct inode *inode) struct inode *check_dirty_dir_inode(struct f2fs_sb_info *sbi, nid_t ino) { - struct list_head *this, *head; + struct list_head *head; struct inode *inode = NULL; + struct dir_inode_entry *entry; spin_lock(&sbi->dir_inode_lock); head = &sbi->dir_inode_list; - list_for_each(this, head) { - struct dir_inode_entry *entry; - entry = list_entry(this, struct dir_inode_entry, list); + list_for_each_entry(entry, head, list) { if (entry->inode->i_ino == ino) { inode = entry->inode; break; @@ -589,7 +680,7 @@ retry: inode = igrab(entry->inode); spin_unlock(&sbi->dir_inode_lock); if (inode) { - filemap_flush(inode->i_mapping); + filemap_fdatawrite(inode->i_mapping); iput(inode); } else { /* @@ -824,6 +915,7 @@ void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount) unblock_operations(sbi); mutex_unlock(&sbi->cp_mutex); + stat_inc_cp_count(sbi->stat_info); trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish checkpoint"); } @@ -845,11 +937,11 @@ void init_orphan_info(struct f2fs_sb_info *sbi) int __init create_checkpoint_caches(void) { orphan_entry_slab = f2fs_kmem_cache_create("f2fs_orphan_entry", - sizeof(struct orphan_inode_entry), NULL); + sizeof(struct orphan_inode_entry)); if (!orphan_entry_slab) return -ENOMEM; inode_entry_slab = f2fs_kmem_cache_create("f2fs_dirty_dir_entry", - sizeof(struct dir_inode_entry), NULL); + sizeof(struct dir_inode_entry)); if (!inode_entry_slab) { kmem_cache_destroy(orphan_entry_slab); return -ENOMEM; diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 2261ccd..45abd60 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -45,7 +45,7 @@ static void f2fs_read_end_io(struct bio *bio, int err) static void f2fs_write_end_io(struct bio *bio, int err) { - struct f2fs_sb_info *sbi = F2FS_SB(bio->bi_io_vec->bv_page->mapping->host->i_sb); + struct f2fs_sb_info *sbi = bio->bi_private; struct bio_vec *bvec; int i; @@ -55,15 +55,16 @@ static void f2fs_write_end_io(struct bio *bio, int err) if (unlikely(err)) { SetPageError(page); set_bit(AS_EIO, &page->mapping->flags); - set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); - sbi->sb->s_flags |= MS_RDONLY; + f2fs_stop_checkpoint(sbi); } end_page_writeback(page); dec_page_count(sbi, F2FS_WRITEBACK); } - if (bio->bi_private) - complete(bio->bi_private); + if (sbi->wait_io) { + complete(sbi->wait_io); + sbi->wait_io = NULL; + } if (!get_pages(sbi, F2FS_WRITEBACK) && !list_empty(&sbi->cp_wait.task_list)) @@ -86,6 +87,7 @@ static struct bio *__bio_alloc(struct f2fs_sb_info *sbi, block_t blk_addr, bio->bi_bdev = sbi->sb->s_bdev; bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr); bio->bi_end_io = is_read ? f2fs_read_end_io : f2fs_write_end_io; + bio->bi_private = sbi; return bio; } @@ -113,7 +115,7 @@ static void __submit_merged_bio(struct f2fs_bio_info *io) */ if (fio->type == META_FLUSH) { DECLARE_COMPLETION_ONSTACK(wait); - io->bio->bi_private = &wait; + io->sbi->wait_io = &wait; submit_bio(rw, io->bio); wait_for_completion(&wait); } else { @@ -132,7 +134,7 @@ void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, io = is_read_io(rw) ? &sbi->read_io : &sbi->write_io[btype]; - mutex_lock(&io->io_mutex); + down_write(&io->io_rwsem); /* change META to META_FLUSH in the checkpoint procedure */ if (type >= META_FLUSH) { @@ -140,7 +142,7 @@ void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, io->fio.rw = WRITE_FLUSH_FUA | REQ_META | REQ_PRIO; } __submit_merged_bio(io); - mutex_unlock(&io->io_mutex); + up_write(&io->io_rwsem); } /* @@ -178,7 +180,7 @@ void f2fs_submit_page_mbio(struct f2fs_sb_info *sbi, struct page *page, verify_block_addr(sbi, blk_addr); - mutex_lock(&io->io_mutex); + down_write(&io->io_rwsem); if (!is_read) inc_page_count(sbi, F2FS_WRITEBACK); @@ -202,7 +204,7 @@ alloc_new: io->last_block_in_bio = blk_addr; - mutex_unlock(&io->io_mutex); + up_write(&io->io_rwsem); trace_f2fs_submit_page_mbio(page, fio->rw, fio->type, blk_addr); } @@ -797,48 +799,36 @@ static int f2fs_write_data_page(struct page *page, */ offset = i_size & (PAGE_CACHE_SIZE - 1); if ((page->index >= end_index + 1) || !offset) { - if (S_ISDIR(inode->i_mode)) { - dec_page_count(sbi, F2FS_DIRTY_DENTS); - inode_dec_dirty_dents(inode); - } + inode_dec_dirty_dents(inode); goto out; } zero_user_segment(page, offset, PAGE_CACHE_SIZE); write: - if (unlikely(sbi->por_doing)) { - err = AOP_WRITEPAGE_ACTIVATE; + if (unlikely(sbi->por_doing)) goto redirty_out; - } /* Dentry blocks are controlled by checkpoint */ if (S_ISDIR(inode->i_mode)) { - dec_page_count(sbi, F2FS_DIRTY_DENTS); inode_dec_dirty_dents(inode); err = do_write_data_page(page, &fio); - } else { - f2fs_lock_op(sbi); - - if (f2fs_has_inline_data(inode) || f2fs_may_inline(inode)) { - err = f2fs_write_inline_data(inode, page, offset); - f2fs_unlock_op(sbi); - goto out; - } else { - err = do_write_data_page(page, &fio); - } + goto done; + } - f2fs_unlock_op(sbi); + if (!wbc->for_reclaim) need_balance_fs = true; - } - if (err == -ENOENT) - goto out; - else if (err) + else if (has_not_enough_free_secs(sbi, 0)) goto redirty_out; - if (wbc->for_reclaim) { - f2fs_submit_merged_bio(sbi, DATA, WRITE); - need_balance_fs = false; - } + f2fs_lock_op(sbi); + if (f2fs_has_inline_data(inode) || f2fs_may_inline(inode)) + err = f2fs_write_inline_data(inode, page, offset); + else + err = do_write_data_page(page, &fio); + f2fs_unlock_op(sbi); +done: + if (err && err != -ENOENT) + goto redirty_out; clear_cold_data(page); out: @@ -849,12 +839,11 @@ out: redirty_out: wbc->pages_skipped++; + account_page_redirty(page); set_page_dirty(page); - return err; + return AOP_WRITEPAGE_ACTIVATE; } -#define MAX_DESIRED_PAGES_WP 4096 - static int __f2fs_writepage(struct page *page, struct writeback_control *wbc, void *data) { @@ -871,17 +860,17 @@ static int f2fs_write_data_pages(struct address_space *mapping, struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); bool locked = false; int ret; - long excess_nrtw = 0, desired_nrtw; + long diff; /* deal with chardevs and other special file */ if (!mapping->a_ops->writepage) return 0; - if (wbc->nr_to_write < MAX_DESIRED_PAGES_WP) { - desired_nrtw = MAX_DESIRED_PAGES_WP; - excess_nrtw = desired_nrtw - wbc->nr_to_write; - wbc->nr_to_write = desired_nrtw; - } + if (S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_NONE && + get_dirty_dents(inode) < nr_pages_to_skip(sbi, DATA)) + goto skip_write; + + diff = nr_pages_to_write(sbi, DATA, wbc); if (!S_ISDIR(inode->i_mode)) { mutex_lock(&sbi->writepages); @@ -895,8 +884,12 @@ static int f2fs_write_data_pages(struct address_space *mapping, remove_dirty_dir_inode(inode); - wbc->nr_to_write -= excess_nrtw; + wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); return ret; + +skip_write: + wbc->pages_skipped += get_dirty_dents(inode); + return 0; } static int f2fs_write_begin(struct file *file, struct address_space *mapping, @@ -949,13 +942,19 @@ inline_data: if (dn.data_blkaddr == NEW_ADDR) { zero_user_segment(page, 0, PAGE_CACHE_SIZE); } else { - if (f2fs_has_inline_data(inode)) + if (f2fs_has_inline_data(inode)) { err = f2fs_read_inline_data(inode, page); - else + if (err) { + page_cache_release(page); + return err; + } + } else { err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr, READ_SYNC); - if (err) - return err; + if (err) + return err; + } + lock_page(page); if (unlikely(!PageUptodate(page))) { f2fs_put_page(page, 1); @@ -1031,11 +1030,8 @@ static void f2fs_invalidate_data_page(struct page *page, unsigned int offset, unsigned int length) { struct inode *inode = page->mapping->host; - struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); - if (S_ISDIR(inode->i_mode) && PageDirty(page)) { - dec_page_count(sbi, F2FS_DIRTY_DENTS); + if (PageDirty(page)) inode_dec_dirty_dents(inode); - } ClearPagePrivate(page); } diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 3de9d20..b52c12c 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -86,7 +86,6 @@ static void update_sit_info(struct f2fs_sb_info *sbi) { struct f2fs_stat_info *si = F2FS_STAT(sbi); unsigned int blks_per_sec, hblks_per_sec, total_vblocks, bimodal, dist; - struct sit_info *sit_i = SIT_I(sbi); unsigned int segno, vblocks; int ndirty = 0; @@ -94,7 +93,6 @@ static void update_sit_info(struct f2fs_sb_info *sbi) total_vblocks = 0; blks_per_sec = sbi->segs_per_sec * (1 << sbi->log_blocks_per_seg); hblks_per_sec = blks_per_sec / 2; - mutex_lock(&sit_i->sentry_lock); for (segno = 0; segno < TOTAL_SEGS(sbi); segno += sbi->segs_per_sec) { vblocks = get_valid_blocks(sbi, segno, sbi->segs_per_sec); dist = abs(vblocks - hblks_per_sec); @@ -105,7 +103,6 @@ static void update_sit_info(struct f2fs_sb_info *sbi) ndirty++; } } - mutex_unlock(&sit_i->sentry_lock); dist = TOTAL_SECS(sbi) * hblks_per_sec * hblks_per_sec / 100; si->bimodal = bimodal / dist; if (si->dirty_count) @@ -236,6 +233,7 @@ static int stat_show(struct seq_file *s, void *v) si->dirty_count); seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", si->prefree_count, si->free_segs, si->free_secs); + seq_printf(s, "CP calls: %d\n", si->cp_count); seq_printf(s, "GC calls: %d (BG: %d)\n", si->call_count, si->bg_gc); seq_printf(s, " - data segments : %d\n", si->data_segs); @@ -252,10 +250,10 @@ static int stat_show(struct seq_file *s, void *v) si->ndirty_dent, si->ndirty_dirs); seq_printf(s, " - meta: %4d in %4d\n", si->ndirty_meta, si->meta_pages); - seq_printf(s, " - NATs: %5d > %lu\n", - si->nats, NM_WOUT_THRESHOLD); - seq_printf(s, " - SITs: %5d\n - free_nids: %5d\n", - si->sits, si->fnids); + seq_printf(s, " - NATs: %9d\n - SITs: %9d\n", + si->nats, si->sits); + seq_printf(s, " - free_nids: %9d\n", + si->fnids); seq_puts(s, "\nDistribution of User Blocks:"); seq_puts(s, " [ valid | invalid | free ]\n"); seq_puts(s, " ["); diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 2b7c255..972fd0e 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -21,12 +21,12 @@ static unsigned long dir_blocks(struct inode *inode) >> PAGE_CACHE_SHIFT; } -static unsigned int dir_buckets(unsigned int level) +static unsigned int dir_buckets(unsigned int level, int dir_level) { if (level < MAX_DIR_HASH_DEPTH / 2) - return 1 << level; + return 1 << (level + dir_level); else - return 1 << ((MAX_DIR_HASH_DEPTH / 2) - 1); + return 1 << ((MAX_DIR_HASH_DEPTH / 2 + dir_level) - 1); } static unsigned int bucket_blocks(unsigned int level) @@ -65,13 +65,14 @@ static void set_de_type(struct f2fs_dir_entry *de, struct inode *inode) de->file_type = f2fs_type_by_mode[(mode & S_IFMT) >> S_SHIFT]; } -static unsigned long dir_block_index(unsigned int level, unsigned int idx) +static unsigned long dir_block_index(unsigned int level, + int dir_level, unsigned int idx) { unsigned long i; unsigned long bidx = 0; for (i = 0; i < level; i++) - bidx += dir_buckets(i) * bucket_blocks(i); + bidx += dir_buckets(i, dir_level) * bucket_blocks(i); bidx += idx * bucket_blocks(level); return bidx; } @@ -93,16 +94,21 @@ static struct f2fs_dir_entry *find_in_block(struct page *dentry_page, f2fs_hash_t namehash, struct page **res_page) { struct f2fs_dir_entry *de; - unsigned long bit_pos, end_pos, next_pos; + unsigned long bit_pos = 0; struct f2fs_dentry_block *dentry_blk = kmap(dentry_page); - int slots; + const void *dentry_bits = &dentry_blk->dentry_bitmap; + int max_len = 0; - bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, - NR_DENTRY_IN_BLOCK, 0); while (bit_pos < NR_DENTRY_IN_BLOCK) { + if (!test_bit_le(bit_pos, dentry_bits)) { + if (bit_pos == 0) + max_len = 1; + else if (!test_bit_le(bit_pos - 1, dentry_bits)) + max_len++; + bit_pos++; + continue; + } de = &dentry_blk->dentry[bit_pos]; - slots = GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); - if (early_match_name(name, namelen, namehash, de)) { if (!memcmp(dentry_blk->filename[bit_pos], name, namelen)) { @@ -110,20 +116,18 @@ static struct f2fs_dir_entry *find_in_block(struct page *dentry_page, goto found; } } - next_pos = bit_pos + slots; - bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, - NR_DENTRY_IN_BLOCK, next_pos); - if (bit_pos >= NR_DENTRY_IN_BLOCK) - end_pos = NR_DENTRY_IN_BLOCK; - else - end_pos = bit_pos; - if (*max_slots < end_pos - next_pos) - *max_slots = end_pos - next_pos; + if (max_len > *max_slots) { + *max_slots = max_len; + max_len = 0; + } + bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); } de = NULL; kunmap(dentry_page); found: + if (max_len > *max_slots) + *max_slots = max_len; return de; } @@ -141,10 +145,11 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir, f2fs_bug_on(level > MAX_DIR_HASH_DEPTH); - nbucket = dir_buckets(level); + nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level); nblock = bucket_blocks(level); - bidx = dir_block_index(level, le32_to_cpu(namehash) % nbucket); + bidx = dir_block_index(level, F2FS_I(dir)->i_dir_level, + le32_to_cpu(namehash) % nbucket); end_block = bidx + nblock; for (; bidx < end_block; bidx++) { @@ -248,7 +253,7 @@ void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, struct page *page, struct inode *inode) { lock_page(page); - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, DATA); de->ino = cpu_to_le32(inode->i_ino); set_de_type(de, inode); kunmap(page); @@ -347,14 +352,11 @@ static struct page *init_inode_metadata(struct inode *inode, err = f2fs_init_security(inode, dir, name, page); if (err) goto put_error; - - wait_on_page_writeback(page); } else { page = get_node_page(F2FS_SB(dir->i_sb), inode->i_ino); if (IS_ERR(page)) return page; - wait_on_page_writeback(page); set_cold_node(inode, page); } @@ -372,6 +374,10 @@ static struct page *init_inode_metadata(struct inode *inode, put_error: f2fs_put_page(page, 1); + /* once the failed inode becomes a bad inode, i_mode is S_IFREG */ + truncate_inode_pages(&inode->i_data, 0); + truncate_blocks(inode, 0); + remove_dirty_dir_inode(inode); error: remove_inode_page(inode); return ERR_PTR(err); @@ -395,9 +401,6 @@ static void update_parent_metadata(struct inode *dir, struct inode *inode, set_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); } - if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) - update_inode_page(dir); - if (is_inode_flag_set(F2FS_I(inode), FI_INC_LINK)) clear_inode_flag(F2FS_I(inode), FI_INC_LINK); } @@ -464,10 +467,11 @@ start: if (level == current_depth) ++current_depth; - nbucket = dir_buckets(level); + nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level); nblock = bucket_blocks(level); - bidx = dir_block_index(level, (le32_to_cpu(dentry_hash) % nbucket)); + bidx = dir_block_index(level, F2FS_I(dir)->i_dir_level, + (le32_to_cpu(dentry_hash) % nbucket)); for (block = bidx; block <= (bidx + nblock - 1); block++) { dentry_page = get_new_data_page(dir, NULL, block, true); @@ -487,8 +491,9 @@ start: ++level; goto start; add_dentry: - wait_on_page_writeback(dentry_page); + f2fs_wait_on_page_writeback(dentry_page, DATA); + down_write(&F2FS_I(inode)->i_sem); page = init_inode_metadata(inode, dir, name); if (IS_ERR(page)) { err = PTR_ERR(page); @@ -511,7 +516,12 @@ add_dentry: update_parent_metadata(dir, inode, current_depth); fail: - clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); + up_write(&F2FS_I(inode)->i_sem); + + if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) { + update_inode_page(dir); + clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); + } kunmap(dentry_page); f2fs_put_page(dentry_page, 1); return err; @@ -528,13 +538,12 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, unsigned int bit_pos; struct address_space *mapping = page->mapping; struct inode *dir = mapping->host; - struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len)); void *kaddr = page_address(page); int i; lock_page(page); - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, DATA); dentry_blk = (struct f2fs_dentry_block *)kaddr; bit_pos = dentry - (struct f2fs_dir_entry *)dentry_blk->dentry; @@ -551,6 +560,10 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, dir->i_ctime = dir->i_mtime = CURRENT_TIME; if (inode) { + struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); + + down_write(&F2FS_I(inode)->i_sem); + if (S_ISDIR(inode->i_mode)) { drop_nlink(dir); update_inode_page(dir); @@ -561,6 +574,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, drop_nlink(inode); i_size_write(inode, 0); } + up_write(&F2FS_I(inode)->i_sem); update_inode_page(inode); if (inode->i_nlink == 0) @@ -573,7 +587,6 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, truncate_hole(dir, page->index, page->index + 1); clear_page_dirty_for_io(page); ClearPageUptodate(page); - dec_page_count(sbi, F2FS_DIRTY_DENTS); inode_dec_dirty_dents(dir); } f2fs_put_page(page, 1); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index fc3c558..2ecac83 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -40,6 +40,7 @@ #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 #define F2FS_MOUNT_INLINE_XATTR 0x00000080 #define F2FS_MOUNT_INLINE_DATA 0x00000100 +#define F2FS_MOUNT_FLUSH_MERGE 0x00000200 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) @@ -88,6 +89,16 @@ enum { SIT_BITMAP }; +/* + * For CP/NAT/SIT/SSA readahead + */ +enum { + META_CP, + META_NAT, + META_SIT, + META_SSA +}; + /* for the list of orphan inodes */ struct orphan_inode_entry { struct list_head list; /* list head */ @@ -187,16 +198,20 @@ struct extent_info { #define FADVISE_COLD_BIT 0x01 #define FADVISE_LOST_PINO_BIT 0x02 +#define DEF_DIR_LEVEL 0 + struct f2fs_inode_info { struct inode vfs_inode; /* serve a vfs inode */ unsigned long i_flags; /* keep an inode flags for ioctl */ unsigned char i_advise; /* use to give file attribute hints */ + unsigned char i_dir_level; /* use for dentry level for large dir */ unsigned int i_current_depth; /* use only in directory structure */ unsigned int i_pino; /* parent inode number */ umode_t i_acl_mode; /* keep file acl mode temporarily */ /* Use below internally in f2fs*/ unsigned long flags; /* use to pass per-file flags */ + struct rw_semaphore i_sem; /* protect fi info */ atomic_t dirty_dents; /* # of dirty dentry pages */ f2fs_hash_t chash; /* hash value of given file name */ unsigned int clevel; /* maximum level of given file name */ @@ -229,6 +244,7 @@ struct f2fs_nm_info { block_t nat_blkaddr; /* base disk address of NAT */ nid_t max_nid; /* maximum possible node ids */ nid_t next_scan_nid; /* the next nid to be scanned */ + unsigned int ram_thresh; /* control the memory footprint */ /* NAT cache management */ struct radix_tree_root nat_root;/* root of the nat entry cache */ @@ -238,6 +254,7 @@ struct f2fs_nm_info { struct list_head dirty_nat_entries; /* cached nat entry list (dirty) */ /* free node ids management */ + struct radix_tree_root free_nid_root;/* root of the free_nid cache */ struct list_head free_nid_list; /* a list for free nids */ spinlock_t free_nid_list_lock; /* protect free nid list */ unsigned int fcnt; /* the number of free node id */ @@ -300,6 +317,12 @@ enum { NO_CHECK_TYPE }; +struct flush_cmd { + struct flush_cmd *next; + struct completion wait; + int ret; +}; + struct f2fs_sm_info { struct sit_info *sit_info; /* whole segment information */ struct free_segmap_info *free_info; /* free segment information */ @@ -328,6 +351,14 @@ struct f2fs_sm_info { unsigned int ipu_policy; /* in-place-update policy */ unsigned int min_ipu_util; /* in-place-update threshold */ + + /* for flush command control */ + struct task_struct *f2fs_issue_flush; /* flush thread */ + wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ + struct flush_cmd *issue_list; /* list for command issue */ + struct flush_cmd *dispatch_list; /* list for command dispatch */ + spinlock_t issue_lock; /* for issue list lock */ + struct flush_cmd *issue_tail; /* list tail of issue list */ }; /* @@ -378,7 +409,7 @@ struct f2fs_bio_info { struct bio *bio; /* bios to merge */ sector_t last_block_in_bio; /* last block number */ struct f2fs_io_info fio; /* store buffered io info. */ - struct mutex io_mutex; /* mutex for bio */ + struct rw_semaphore io_rwsem; /* blocking op for bio */ }; struct f2fs_sb_info { @@ -398,6 +429,7 @@ struct f2fs_sb_info { /* for bio operations */ struct f2fs_bio_info read_io; /* for read bios */ struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ + struct completion *wait_io; /* for completion bios */ /* for checkpoint */ struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ @@ -407,7 +439,6 @@ struct f2fs_sb_info { struct mutex node_write; /* locking node writes */ struct mutex writepages; /* mutex for writepages() */ bool por_doing; /* recovery is doing or not */ - bool on_build_free_nids; /* build_free_nids is doing */ wait_queue_head_t cp_wait; /* for orphan inode management */ @@ -436,6 +467,7 @@ struct f2fs_sb_info { unsigned int total_valid_node_count; /* valid node block count */ unsigned int total_valid_inode_count; /* valid inode count */ int active_logs; /* # of active logs */ + int dir_level; /* directory level */ block_t user_block_count; /* # of user blocks */ block_t total_valid_block_count; /* # of valid blocks */ @@ -622,6 +654,11 @@ static inline int F2FS_HAS_BLOCKS(struct inode *inode) return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; } +static inline bool f2fs_has_xattr_block(unsigned int ofs) +{ + return ofs == XATTR_NODE_OFFSET; +} + static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, struct inode *inode, blkcnt_t count) { @@ -661,6 +698,7 @@ static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) static inline void inode_inc_dirty_dents(struct inode *inode) { + inc_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS); atomic_inc(&F2FS_I(inode)->dirty_dents); } @@ -671,6 +709,10 @@ static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) static inline void inode_dec_dirty_dents(struct inode *inode) { + if (!S_ISDIR(inode->i_mode)) + return; + + dec_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS); atomic_dec(&F2FS_I(inode)->dirty_dents); } @@ -679,6 +721,11 @@ static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) return atomic_read(&sbi->nr_pages[count_type]); } +static inline int get_dirty_dents(struct inode *inode) +{ + return atomic_read(&F2FS_I(inode)->dirty_dents); +} + static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) { unsigned int pages_per_sec = sbi->segs_per_sec * @@ -689,11 +736,7 @@ static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) { - block_t ret; - spin_lock(&sbi->stat_lock); - ret = sbi->total_valid_block_count; - spin_unlock(&sbi->stat_lock); - return ret; + return sbi->total_valid_block_count; } static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) @@ -789,11 +832,7 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) { - unsigned int ret; - spin_lock(&sbi->stat_lock); - ret = sbi->total_valid_node_count; - spin_unlock(&sbi->stat_lock); - return ret; + return sbi->total_valid_node_count; } static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) @@ -814,11 +853,7 @@ static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) { - unsigned int ret; - spin_lock(&sbi->stat_lock); - ret = sbi->total_valid_inode_count; - spin_unlock(&sbi->stat_lock); - return ret; + return sbi->total_valid_inode_count; } static inline void f2fs_put_page(struct page *page, int unlock) @@ -844,9 +879,9 @@ static inline void f2fs_put_dnode(struct dnode_of_data *dn) } static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, - size_t size, void (*ctor)(void *)) + size_t size) { - return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, ctor); + return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); } static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, @@ -983,24 +1018,28 @@ static inline void set_raw_inline(struct f2fs_inode_info *fi, ri->i_inline |= F2FS_INLINE_DATA; } +static inline int f2fs_has_inline_xattr(struct inode *inode) +{ + return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); +} + static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi) { - if (is_inode_flag_set(fi, FI_INLINE_XATTR)) + if (f2fs_has_inline_xattr(&fi->vfs_inode)) return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; return DEF_ADDRS_PER_INODE; } static inline void *inline_xattr_addr(struct page *page) { - struct f2fs_inode *ri; - ri = (struct f2fs_inode *)page_address(page); + struct f2fs_inode *ri = F2FS_INODE(page); return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS]); } static inline int inline_xattr_size(struct inode *inode) { - if (is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR)) + if (f2fs_has_inline_xattr(inode)) return F2FS_INLINE_XATTR_ADDRS << 2; else return 0; @@ -1013,8 +1052,7 @@ static inline int f2fs_has_inline_data(struct inode *inode) static inline void *inline_data_addr(struct page *page) { - struct f2fs_inode *ri; - ri = (struct f2fs_inode *)page_address(page); + struct f2fs_inode *ri = F2FS_INODE(page); return (void *)&(ri->i_addr[1]); } @@ -1023,6 +1061,12 @@ static inline int f2fs_readonly(struct super_block *sb) return sb->s_flags & MS_RDONLY; } +static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) +{ + set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); + sbi->sb->s_flags |= MS_RDONLY; +} + #define get_inode_mode(i) \ ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) @@ -1048,7 +1092,7 @@ void f2fs_set_inode_flags(struct inode *); struct inode *f2fs_iget(struct super_block *, unsigned long); int try_to_free_nats(struct f2fs_sb_info *, int); void update_inode(struct inode *, struct page *); -int update_inode_page(struct inode *); +void update_inode_page(struct inode *); int f2fs_write_inode(struct inode *, struct writeback_control *); void f2fs_evict_inode(struct inode *); @@ -1097,6 +1141,7 @@ struct dnode_of_data; struct node_info; int is_checkpointed_node(struct f2fs_sb_info *, nid_t); +bool fsync_mark_done(struct f2fs_sb_info *, nid_t); void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); int truncate_inode_blocks(struct inode *, pgoff_t); @@ -1115,6 +1160,7 @@ void alloc_nid_done(struct f2fs_sb_info *, nid_t); void alloc_nid_failed(struct f2fs_sb_info *, nid_t); void recover_node_page(struct f2fs_sb_info *, struct page *, struct f2fs_summary *, struct node_info *, block_t); +bool recover_xattr_data(struct inode *, struct page *, block_t); int recover_inode_page(struct f2fs_sb_info *, struct page *); int restore_node_summary(struct f2fs_sb_info *, unsigned int, struct f2fs_summary_block *); @@ -1129,7 +1175,9 @@ void destroy_node_manager_caches(void); */ void f2fs_balance_fs(struct f2fs_sb_info *); void f2fs_balance_fs_bg(struct f2fs_sb_info *); +int f2fs_issue_flush(struct f2fs_sb_info *); void invalidate_blocks(struct f2fs_sb_info *, block_t); +void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); void clear_prefree_segments(struct f2fs_sb_info *); int npages_for_summary_flush(struct f2fs_sb_info *); void allocate_new_segments(struct f2fs_sb_info *); @@ -1162,6 +1210,7 @@ void destroy_segment_manager_caches(void); */ struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); +int ra_meta_pages(struct f2fs_sb_info *, int, int, int); long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); int acquire_orphan_inode(struct f2fs_sb_info *); void release_orphan_inode(struct f2fs_sb_info *); @@ -1231,7 +1280,7 @@ struct f2fs_stat_info { int util_free, util_valid, util_invalid; int rsvd_segs, overp_segs; int dirty_count, node_pages, meta_pages; - int prefree_count, call_count; + int prefree_count, call_count, cp_count; int tot_segs, node_segs, data_segs, free_segs, free_secs; int tot_blks, data_blks, node_blks; int curseg[NR_CURSEG_TYPE]; @@ -1248,6 +1297,7 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) return (struct f2fs_stat_info *)sbi->stat_info; } +#define stat_inc_cp_count(si) ((si)->cp_count++) #define stat_inc_call_count(si) ((si)->call_count++) #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) #define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++) @@ -1302,6 +1352,7 @@ void f2fs_destroy_stats(struct f2fs_sb_info *); void __init f2fs_create_root_stats(void); void f2fs_destroy_root_stats(void); #else +#define stat_inc_cp_count(si) #define stat_inc_call_count(si) #define stat_inc_bggc_count(si) #define stat_inc_dirty_dir(sbi) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 0dfcef5..302d552 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -76,7 +76,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma, trace_f2fs_vm_page_mkwrite(page, DATA); mapped: /* fill the page */ - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, DATA); out: sb_end_pagefault(inode->i_sb); return block_page_mkwrite_return(err); @@ -111,11 +111,12 @@ static int get_parent_ino(struct inode *inode, nid_t *pino) int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; + struct f2fs_inode_info *fi = F2FS_I(inode); struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); int ret = 0; bool need_cp = false; struct writeback_control wbc = { - .sync_mode = WB_SYNC_NONE, + .sync_mode = WB_SYNC_ALL, .nr_to_write = LONG_MAX, .for_reclaim = 0, }; @@ -133,7 +134,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) /* guarantee free sections for fsync */ f2fs_balance_fs(sbi); - mutex_lock(&inode->i_mutex); + down_read(&fi->i_sem); /* * Both of fdatasync() and fsync() are able to be recovered from @@ -150,25 +151,33 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi))) need_cp = true; + up_read(&fi->i_sem); + if (need_cp) { nid_t pino; - F2FS_I(inode)->xattr_ver = 0; - /* all the dirty node pages should be flushed for POR */ ret = f2fs_sync_fs(inode->i_sb, 1); + + down_write(&fi->i_sem); + F2FS_I(inode)->xattr_ver = 0; if (file_wrong_pino(inode) && inode->i_nlink == 1 && get_parent_ino(inode, &pino)) { F2FS_I(inode)->i_pino = pino; file_got_pino(inode); + up_write(&fi->i_sem); mark_inode_dirty_sync(inode); ret = f2fs_write_inode(inode, NULL); if (ret) goto out; + } else { + up_write(&fi->i_sem); } } else { /* if there is no written node page, write its inode page */ while (!sync_node_pages(sbi, inode->i_ino, &wbc)) { + if (fsync_mark_done(sbi, inode->i_ino)) + goto out; mark_inode_dirty_sync(inode); ret = f2fs_write_inode(inode, NULL); if (ret) @@ -177,10 +186,9 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) ret = wait_on_node_pages_writeback(sbi, inode->i_ino); if (ret) goto out; - ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); + ret = f2fs_issue_flush(F2FS_SB(inode->i_sb)); } out: - mutex_unlock(&inode->i_mutex); trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret); return ret; } @@ -245,7 +253,7 @@ static void truncate_partial_data_page(struct inode *inode, u64 from) f2fs_put_page(page, 1); return; } - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, DATA); zero_user(page, offset, PAGE_CACHE_SIZE - offset); set_page_dirty(page); f2fs_put_page(page, 1); @@ -422,7 +430,7 @@ static void fill_zero(struct inode *inode, pgoff_t index, f2fs_unlock_op(sbi); if (!IS_ERR(page)) { - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, DATA); zero_user(page, start, len); set_page_dirty(page); f2fs_put_page(page, 1); @@ -560,6 +568,8 @@ static long f2fs_fallocate(struct file *file, int mode, if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) return -EOPNOTSUPP; + mutex_lock(&inode->i_mutex); + if (mode & FALLOC_FL_PUNCH_HOLE) ret = punch_hole(inode, offset, len); else @@ -569,6 +579,9 @@ static long f2fs_fallocate(struct file *file, int mode, inode->i_mtime = inode->i_ctime = CURRENT_TIME; mark_inode_dirty(inode); } + + mutex_unlock(&inode->i_mutex); + trace_f2fs_fallocate(inode, mode, offset, len, ret); return ret; } diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index ea0371e..b90dbe5 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -531,15 +531,10 @@ static void move_data_page(struct inode *inode, struct page *page, int gc_type) set_page_dirty(page); set_cold_data(page); } else { - struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); - f2fs_wait_on_page_writeback(page, DATA); - if (clear_page_dirty_for_io(page) && - S_ISDIR(inode->i_mode)) { - dec_page_count(sbi, F2FS_DIRTY_DENTS); + if (clear_page_dirty_for_io(page)) inode_dec_dirty_dents(inode); - } set_cold_data(page); do_write_data_page(page, &fio); clear_cold_data(page); @@ -701,6 +696,8 @@ int f2fs_gc(struct f2fs_sb_info *sbi) gc_more: if (unlikely(!(sbi->sb->s_flags & MS_ACTIVE))) goto stop; + if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG))) + goto stop; if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) { gc_type = FG_GC; @@ -711,6 +708,11 @@ gc_more: goto stop; ret = 0; + /* readahead multi ssa blocks those have contiguous address */ + if (sbi->segs_per_sec > 1) + ra_meta_pages(sbi, GET_SUM_BLOCK(sbi, segno), sbi->segs_per_sec, + META_SSA); + for (i = 0; i < sbi->segs_per_sec; i++) do_garbage_collect(sbi, segno + i, &ilist, gc_type); @@ -740,7 +742,7 @@ void build_gc_manager(struct f2fs_sb_info *sbi) int __init create_gc_caches(void) { winode_slab = f2fs_kmem_cache_create("f2fs_gc_inodes", - sizeof(struct inode_entry), NULL); + sizeof(struct inode_entry)); if (!winode_slab) return -ENOMEM; return 0; diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 31ee5b1..383db1f 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -45,8 +45,10 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page) } ipage = get_node_page(sbi, inode->i_ino); - if (IS_ERR(ipage)) + if (IS_ERR(ipage)) { + unlock_page(page); return PTR_ERR(ipage); + } zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 28cea76..ee829d3 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -107,6 +107,7 @@ static int do_read_inode(struct inode *inode) fi->flags = 0; fi->i_advise = ri->i_advise; fi->i_pino = le32_to_cpu(ri->i_pino); + fi->i_dir_level = ri->i_dir_level; get_extent_info(&fi->ext, ri->i_ext); get_inline_info(fi, ri); @@ -204,6 +205,7 @@ void update_inode(struct inode *inode, struct page *node_page) ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); ri->i_generation = cpu_to_le32(inode->i_generation); + ri->i_dir_level = F2FS_I(inode)->i_dir_level; __set_inode_rdev(inode, ri); set_cold_node(inode, node_page); @@ -212,24 +214,29 @@ void update_inode(struct inode *inode, struct page *node_page) clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE); } -int update_inode_page(struct inode *inode) +void update_inode_page(struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct page *node_page; - +retry: node_page = get_node_page(sbi, inode->i_ino); - if (IS_ERR(node_page)) - return PTR_ERR(node_page); - + if (IS_ERR(node_page)) { + int err = PTR_ERR(node_page); + if (err == -ENOMEM) { + cond_resched(); + goto retry; + } else if (err != -ENOENT) { + f2fs_stop_checkpoint(sbi); + } + return; + } update_inode(inode, node_page); f2fs_put_page(node_page, 1); - return 0; } int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) { struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); - int ret; if (inode->i_ino == F2FS_NODE_INO(sbi) || inode->i_ino == F2FS_META_INO(sbi)) @@ -243,13 +250,13 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) * during the urgent cleaning time when runing out of free sections. */ f2fs_lock_op(sbi); - ret = update_inode_page(inode); + update_inode_page(inode); f2fs_unlock_op(sbi); if (wbc) f2fs_balance_fs(sbi); - return ret; + return 0; } /* @@ -266,7 +273,7 @@ void f2fs_evict_inode(struct inode *inode) inode->i_ino == F2FS_META_INO(sbi)) goto no_delete; - f2fs_bug_on(atomic_read(&F2FS_I(inode)->dirty_dents)); + f2fs_bug_on(get_dirty_dents(inode)); remove_dirty_dir_inode(inode); if (inode->i_nlink || is_bad_inode(inode)) diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index 397d459..a9409d1 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -207,6 +207,8 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, inode = f2fs_iget(dir->i_sb, ino); if (IS_ERR(inode)) return ERR_CAST(inode); + + stat_inc_inline_inode(inode); } return d_splice_alias(inode, dentry); @@ -424,12 +426,17 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, } f2fs_set_link(new_dir, new_entry, new_page, old_inode); + down_write(&F2FS_I(old_inode)->i_sem); F2FS_I(old_inode)->i_pino = new_dir->i_ino; + up_write(&F2FS_I(old_inode)->i_sem); new_inode->i_ctime = CURRENT_TIME; + down_write(&F2FS_I(new_inode)->i_sem); if (old_dir_entry) drop_nlink(new_inode); drop_nlink(new_inode); + up_write(&F2FS_I(new_inode)->i_sem); + mark_inode_dirty(new_inode); if (!new_inode->i_nlink) @@ -459,7 +466,9 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, if (old_dir != new_dir) { f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); + down_write(&F2FS_I(old_inode)->i_sem); F2FS_I(old_inode)->i_pino = new_dir->i_ino; + up_write(&F2FS_I(old_inode)->i_sem); update_inode_page(old_inode); } else { kunmap(old_dir_page); diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index b0649b7..a161e95 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -21,9 +21,27 @@ #include "segment.h" #include <trace/events/f2fs.h> +#define on_build_free_nids(nmi) mutex_is_locked(&nm_i->build_lock) + static struct kmem_cache *nat_entry_slab; static struct kmem_cache *free_nid_slab; +static inline bool available_free_memory(struct f2fs_nm_info *nm_i, int type) +{ + struct sysinfo val; + unsigned long mem_size = 0; + + si_meminfo(&val); + if (type == FREE_NIDS) + mem_size = nm_i->fcnt * sizeof(struct free_nid); + else if (type == NAT_ENTRIES) + mem_size += nm_i->nat_cnt * sizeof(struct nat_entry); + mem_size >>= 12; + + /* give 50:50 memory for free nids and nat caches respectively */ + return (mem_size < ((val.totalram * nm_i->ram_thresh) >> 11)); +} + static void clear_node_page_dirty(struct page *page) { struct address_space *mapping = page->mapping; @@ -82,42 +100,6 @@ static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid) return dst_page; } -/* - * Readahead NAT pages - */ -static void ra_nat_pages(struct f2fs_sb_info *sbi, int nid) -{ - struct address_space *mapping = META_MAPPING(sbi); - struct f2fs_nm_info *nm_i = NM_I(sbi); - struct page *page; - pgoff_t index; - int i; - struct f2fs_io_info fio = { - .type = META, - .rw = READ_SYNC | REQ_META | REQ_PRIO - }; - - - for (i = 0; i < FREE_NID_PAGES; i++, nid += NAT_ENTRY_PER_BLOCK) { - if (unlikely(nid >= nm_i->max_nid)) - nid = 0; - index = current_nat_addr(sbi, nid); - - page = grab_cache_page(mapping, index); - if (!page) - continue; - if (PageUptodate(page)) { - mark_page_accessed(page); - f2fs_put_page(page, 1); - continue; - } - f2fs_submit_page_mbio(sbi, page, index, &fio); - mark_page_accessed(page); - f2fs_put_page(page, 0); - } - f2fs_submit_merged_bio(sbi, META, READ); -} - static struct nat_entry *__lookup_nat_cache(struct f2fs_nm_info *nm_i, nid_t n) { return radix_tree_lookup(&nm_i->nat_root, n); @@ -151,6 +133,20 @@ int is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid) return is_cp; } +bool fsync_mark_done(struct f2fs_sb_info *sbi, nid_t nid) +{ + struct f2fs_nm_info *nm_i = NM_I(sbi); + struct nat_entry *e; + bool fsync_done = false; + + read_lock(&nm_i->nat_tree_lock); + e = __lookup_nat_cache(nm_i, nid); + if (e) + fsync_done = e->fsync_done; + read_unlock(&nm_i->nat_tree_lock); + return fsync_done; +} + static struct nat_entry *grab_nat_entry(struct f2fs_nm_info *nm_i, nid_t nid) { struct nat_entry *new; @@ -164,6 +160,7 @@ static struct nat_entry *grab_nat_entry(struct f2fs_nm_info *nm_i, nid_t nid) } memset(new, 0, sizeof(struct nat_entry)); nat_set_nid(new, nid); + new->checkpointed = true; list_add_tail(&new->list, &nm_i->nat_entries); nm_i->nat_cnt++; return new; @@ -185,13 +182,12 @@ retry: nat_set_blkaddr(e, le32_to_cpu(ne->block_addr)); nat_set_ino(e, le32_to_cpu(ne->ino)); nat_set_version(e, ne->version); - e->checkpointed = true; } write_unlock(&nm_i->nat_tree_lock); } static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, - block_t new_blkaddr) + block_t new_blkaddr, bool fsync_done) { struct f2fs_nm_info *nm_i = NM_I(sbi); struct nat_entry *e; @@ -205,7 +201,6 @@ retry: goto retry; } e->ni = *ni; - e->checkpointed = true; f2fs_bug_on(ni->blk_addr == NEW_ADDR); } else if (new_blkaddr == NEW_ADDR) { /* @@ -217,9 +212,6 @@ retry: f2fs_bug_on(ni->blk_addr != NULL_ADDR); } - if (new_blkaddr == NEW_ADDR) - e->checkpointed = false; - /* sanity check */ f2fs_bug_on(nat_get_blkaddr(e) != ni->blk_addr); f2fs_bug_on(nat_get_blkaddr(e) == NULL_ADDR && @@ -239,6 +231,11 @@ retry: /* change address */ nat_set_blkaddr(e, new_blkaddr); __set_nat_cache_dirty(nm_i, e); + + /* update fsync_mark if its inode nat entry is still alive */ + e = __lookup_nat_cache(nm_i, ni->ino); + if (e) + e->fsync_done = fsync_done; write_unlock(&nm_i->nat_tree_lock); } @@ -246,7 +243,7 @@ int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) { struct f2fs_nm_info *nm_i = NM_I(sbi); - if (nm_i->nat_cnt <= NM_WOUT_THRESHOLD) + if (available_free_memory(nm_i, NAT_ENTRIES)) return 0; write_lock(&nm_i->nat_tree_lock); @@ -505,7 +502,7 @@ static void truncate_node(struct dnode_of_data *dn) /* Deallocate node address */ invalidate_blocks(sbi, ni.blk_addr); dec_valid_node_count(sbi, dn->inode); - set_node_addr(sbi, &ni, NULL_ADDR); + set_node_addr(sbi, &ni, NULL_ADDR, false); if (dn->nid == dn->inode->i_ino) { remove_orphan_inode(sbi, dn->nid); @@ -763,7 +760,7 @@ skip_partial: f2fs_put_page(page, 1); goto restart; } - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, NODE); ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0; set_page_dirty(page); unlock_page(page); @@ -852,7 +849,8 @@ struct page *new_node_page(struct dnode_of_data *dn, if (unlikely(is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC))) return ERR_PTR(-EPERM); - page = grab_cache_page(NODE_MAPPING(sbi), dn->nid); + page = grab_cache_page_write_begin(NODE_MAPPING(sbi), + dn->nid, AOP_FLAG_NOFS); if (!page) return ERR_PTR(-ENOMEM); @@ -867,14 +865,14 @@ struct page *new_node_page(struct dnode_of_data *dn, f2fs_bug_on(old_ni.blk_addr != NULL_ADDR); new_ni = old_ni; new_ni.ino = dn->inode->i_ino; - set_node_addr(sbi, &new_ni, NEW_ADDR); + set_node_addr(sbi, &new_ni, NEW_ADDR, false); fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true); set_cold_node(dn->inode, page); SetPageUptodate(page); set_page_dirty(page); - if (ofs == XATTR_NODE_OFFSET) + if (f2fs_has_xattr_block(ofs)) F2FS_I(dn->inode)->i_xattr_nid = dn->nid; dn->node_page = page; @@ -948,7 +946,8 @@ struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid) struct page *page; int err; repeat: - page = grab_cache_page(NODE_MAPPING(sbi), nid); + page = grab_cache_page_write_begin(NODE_MAPPING(sbi), + nid, AOP_FLAG_NOFS); if (!page) return ERR_PTR(-ENOMEM); @@ -959,7 +958,7 @@ repeat: goto got_it; lock_page(page); - if (unlikely(!PageUptodate(page))) { + if (unlikely(!PageUptodate(page) || nid != nid_of_node(page))) { f2fs_put_page(page, 1); return ERR_PTR(-EIO); } @@ -968,7 +967,6 @@ repeat: goto repeat; } got_it: - f2fs_bug_on(nid != nid_of_node(page)); mark_page_accessed(page); return page; } @@ -1168,7 +1166,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino) continue; if (ino && ino_of_node(page) == ino) { - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, NODE); if (TestClearPageError(page)) ret = -EIO; } @@ -1201,7 +1199,7 @@ static int f2fs_write_node_page(struct page *page, if (unlikely(sbi->por_doing)) goto redirty_out; - wait_on_page_writeback(page); + f2fs_wait_on_page_writeback(page, NODE); /* get old block addr of this node page */ nid = nid_of_node(page); @@ -1222,7 +1220,7 @@ static int f2fs_write_node_page(struct page *page, mutex_lock(&sbi->node_write); set_page_writeback(page); write_node_page(sbi, page, &fio, nid, ni.blk_addr, &new_addr); - set_node_addr(sbi, &ni, new_addr); + set_node_addr(sbi, &ni, new_addr, is_fsync_dnode(page)); dec_page_count(sbi, F2FS_DIRTY_NODES); mutex_unlock(&sbi->node_write); unlock_page(page); @@ -1231,35 +1229,32 @@ static int f2fs_write_node_page(struct page *page, redirty_out: dec_page_count(sbi, F2FS_DIRTY_NODES); wbc->pages_skipped++; + account_page_redirty(page); set_page_dirty(page); return AOP_WRITEPAGE_ACTIVATE; } -/* - * It is very important to gather dirty pages and write at once, so that we can - * submit a big bio without interfering other data writes. - * Be default, 512 pages (2MB) * 3 node types, is more reasonable. - */ -#define COLLECT_DIRTY_NODES 1536 static int f2fs_write_node_pages(struct address_space *mapping, struct writeback_control *wbc) { struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb); - long nr_to_write = wbc->nr_to_write; + long diff; /* balancing f2fs's metadata in background */ f2fs_balance_fs_bg(sbi); /* collect a number of dirty node pages and write together */ - if (get_pages(sbi, F2FS_DIRTY_NODES) < COLLECT_DIRTY_NODES) - return 0; + if (get_pages(sbi, F2FS_DIRTY_NODES) < nr_pages_to_skip(sbi, NODE)) + goto skip_write; - /* if mounting is failed, skip writing node pages */ - wbc->nr_to_write = 3 * max_hw_blocks(sbi); + diff = nr_pages_to_write(sbi, NODE, wbc); wbc->sync_mode = WB_SYNC_NONE; sync_node_pages(sbi, 0, wbc); - wbc->nr_to_write = nr_to_write - (3 * max_hw_blocks(sbi) - - wbc->nr_to_write); + wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); + return 0; + +skip_write: + wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_NODES); return 0; } @@ -1307,22 +1302,17 @@ const struct address_space_operations f2fs_node_aops = { .releasepage = f2fs_release_node_page, }; -static struct free_nid *__lookup_free_nid_list(nid_t n, struct list_head *head) +static struct free_nid *__lookup_free_nid_list(struct f2fs_nm_info *nm_i, + nid_t n) { - struct list_head *this; - struct free_nid *i; - list_for_each(this, head) { - i = list_entry(this, struct free_nid, list); - if (i->nid == n) - return i; - } - return NULL; + return radix_tree_lookup(&nm_i->free_nid_root, n); } -static void __del_from_free_nid_list(struct free_nid *i) +static void __del_from_free_nid_list(struct f2fs_nm_info *nm_i, + struct free_nid *i) { list_del(&i->list); - kmem_cache_free(free_nid_slab, i); + radix_tree_delete(&nm_i->free_nid_root, i->nid); } static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build) @@ -1331,7 +1321,7 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build) struct nat_entry *ne; bool allocated = false; - if (nm_i->fcnt > 2 * MAX_FREE_NIDS) + if (!available_free_memory(nm_i, FREE_NIDS)) return -1; /* 0 nid should not be used */ @@ -1342,7 +1332,8 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build) /* do not add allocated nids */ read_lock(&nm_i->nat_tree_lock); ne = __lookup_nat_cache(nm_i, nid); - if (ne && nat_get_blkaddr(ne) != NULL_ADDR) + if (ne && + (!ne->checkpointed || nat_get_blkaddr(ne) != NULL_ADDR)) allocated = true; read_unlock(&nm_i->nat_tree_lock); if (allocated) @@ -1354,7 +1345,7 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build) i->state = NID_NEW; spin_lock(&nm_i->free_nid_list_lock); - if (__lookup_free_nid_list(nid, &nm_i->free_nid_list)) { + if (radix_tree_insert(&nm_i->free_nid_root, i->nid, i)) { spin_unlock(&nm_i->free_nid_list_lock); kmem_cache_free(free_nid_slab, i); return 0; @@ -1368,13 +1359,19 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build) static void remove_free_nid(struct f2fs_nm_info *nm_i, nid_t nid) { struct free_nid *i; + bool need_free = false; + spin_lock(&nm_i->free_nid_list_lock); - i = __lookup_free_nid_list(nid, &nm_i->free_nid_list); + i = __lookup_free_nid_list(nm_i, nid); if (i && i->state == NID_NEW) { - __del_from_free_nid_list(i); + __del_from_free_nid_list(nm_i, i); nm_i->fcnt--; + need_free = true; } spin_unlock(&nm_i->free_nid_list_lock); + + if (need_free) + kmem_cache_free(free_nid_slab, i); } static void scan_nat_page(struct f2fs_nm_info *nm_i, @@ -1413,7 +1410,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi) return; /* readahead nat pages to be scanned */ - ra_nat_pages(sbi, nid); + ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES, META_NAT); while (1) { struct page *page = get_current_nat_page(sbi, nid); @@ -1454,7 +1451,6 @@ bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) { struct f2fs_nm_info *nm_i = NM_I(sbi); struct free_nid *i = NULL; - struct list_head *this; retry: if (unlikely(sbi->total_valid_node_count + 1 >= nm_i->max_nid)) return false; @@ -1462,13 +1458,11 @@ retry: spin_lock(&nm_i->free_nid_list_lock); /* We should not use stale free nids created by build_free_nids */ - if (nm_i->fcnt && !sbi->on_build_free_nids) { + if (nm_i->fcnt && !on_build_free_nids(nm_i)) { f2fs_bug_on(list_empty(&nm_i->free_nid_list)); - list_for_each(this, &nm_i->free_nid_list) { - i = list_entry(this, struct free_nid, list); + list_for_each_entry(i, &nm_i->free_nid_list, list) if (i->state == NID_NEW) break; - } f2fs_bug_on(i->state != NID_NEW); *nid = i->nid; @@ -1481,9 +1475,7 @@ retry: /* Let's scan nat pages and its caches to get free nids */ mutex_lock(&nm_i->build_lock); - sbi->on_build_free_nids = true; build_free_nids(sbi); - sbi->on_build_free_nids = false; mutex_unlock(&nm_i->build_lock); goto retry; } @@ -1497,10 +1489,12 @@ void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid) struct free_nid *i; spin_lock(&nm_i->free_nid_list_lock); - i = __lookup_free_nid_list(nid, &nm_i->free_nid_list); + i = __lookup_free_nid_list(nm_i, nid); f2fs_bug_on(!i || i->state != NID_ALLOC); - __del_from_free_nid_list(i); + __del_from_free_nid_list(nm_i, i); spin_unlock(&nm_i->free_nid_list_lock); + + kmem_cache_free(free_nid_slab, i); } /* @@ -1510,20 +1504,25 @@ void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid) { struct f2fs_nm_info *nm_i = NM_I(sbi); struct free_nid *i; + bool need_free = false; if (!nid) return; spin_lock(&nm_i->free_nid_list_lock); - i = __lookup_free_nid_list(nid, &nm_i->free_nid_list); + i = __lookup_free_nid_list(nm_i, nid); f2fs_bug_on(!i || i->state != NID_ALLOC); - if (nm_i->fcnt > 2 * MAX_FREE_NIDS) { - __del_from_free_nid_list(i); + if (!available_free_memory(nm_i, FREE_NIDS)) { + __del_from_free_nid_list(nm_i, i); + need_free = true; } else { i->state = NID_NEW; nm_i->fcnt++; } spin_unlock(&nm_i->free_nid_list_lock); + + if (need_free) + kmem_cache_free(free_nid_slab, i); } void recover_node_page(struct f2fs_sb_info *sbi, struct page *page, @@ -1531,10 +1530,83 @@ void recover_node_page(struct f2fs_sb_info *sbi, struct page *page, block_t new_blkaddr) { rewrite_node_page(sbi, page, sum, ni->blk_addr, new_blkaddr); - set_node_addr(sbi, ni, new_blkaddr); + set_node_addr(sbi, ni, new_blkaddr, false); clear_node_page_dirty(page); } +void recover_inline_xattr(struct inode *inode, struct page *page) +{ + struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); + void *src_addr, *dst_addr; + size_t inline_size; + struct page *ipage; + struct f2fs_inode *ri; + + if (!f2fs_has_inline_xattr(inode)) + return; + + if (!IS_INODE(page)) + return; + + ri = F2FS_INODE(page); + if (!(ri->i_inline & F2FS_INLINE_XATTR)) + return; + + ipage = get_node_page(sbi, inode->i_ino); + f2fs_bug_on(IS_ERR(ipage)); + + dst_addr = inline_xattr_addr(ipage); + src_addr = inline_xattr_addr(page); + inline_size = inline_xattr_size(inode); + + memcpy(dst_addr, src_addr, inline_size); + + update_inode(inode, ipage); + f2fs_put_page(ipage, 1); +} + +bool recover_xattr_data(struct inode *inode, struct page *page, block_t blkaddr) +{ + struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); + nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid; + nid_t new_xnid = nid_of_node(page); + struct node_info ni; + + recover_inline_xattr(inode, page); + + if (!f2fs_has_xattr_block(ofs_of_node(page))) + return false; + + /* 1: invalidate the previous xattr nid */ + if (!prev_xnid) + goto recover_xnid; + + /* Deallocate node address */ + get_node_info(sbi, prev_xnid, &ni); + f2fs_bug_on(ni.blk_addr == NULL_ADDR); + invalidate_blocks(sbi, ni.blk_addr); + dec_valid_node_count(sbi, inode); + set_node_addr(sbi, &ni, NULL_ADDR, false); + +recover_xnid: + /* 2: allocate new xattr nid */ + if (unlikely(!inc_valid_node_count(sbi, inode))) + f2fs_bug_on(1); + + remove_free_nid(NM_I(sbi), new_xnid); + get_node_info(sbi, new_xnid, &ni); + ni.ino = inode->i_ino; + set_node_addr(sbi, &ni, NEW_ADDR, false); + F2FS_I(inode)->i_xattr_nid = new_xnid; + + /* 3: update xattr blkaddr */ + refresh_sit_entry(sbi, NEW_ADDR, blkaddr); + set_node_addr(sbi, &ni, blkaddr, false); + + update_inode_page(inode); + return true; +} + int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) { struct f2fs_inode *src, *dst; @@ -1567,7 +1639,7 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) if (unlikely(!inc_valid_node_count(sbi, NULL))) WARN_ON(1); - set_node_addr(sbi, &new_ni, NEW_ADDR); + set_node_addr(sbi, &new_ni, NEW_ADDR, false); inc_valid_inode_count(sbi); f2fs_put_page(ipage, 1); return 0; @@ -1590,15 +1662,8 @@ static int ra_sum_pages(struct f2fs_sb_info *sbi, struct list_head *pages, for (; page_idx < start + nrpages; page_idx++) { /* alloc temporal page for read node summary info*/ page = alloc_page(GFP_F2FS_ZERO); - if (!page) { - struct page *tmp; - list_for_each_entry_safe(page, tmp, pages, lru) { - list_del(&page->lru); - unlock_page(page); - __free_pages(page, 0); - } - return -ENOMEM; - } + if (!page) + break; lock_page(page); page->index = page_idx; @@ -1609,7 +1674,8 @@ static int ra_sum_pages(struct f2fs_sb_info *sbi, struct list_head *pages, f2fs_submit_page_mbio(sbi, page, page->index, &fio); f2fs_submit_merged_bio(sbi, META, READ); - return 0; + + return page_idx - start; } int restore_node_summary(struct f2fs_sb_info *sbi, @@ -1628,15 +1694,17 @@ int restore_node_summary(struct f2fs_sb_info *sbi, addr = START_BLOCK(sbi, segno); sum_entry = &sum->entries[0]; - for (i = 0; i < last_offset; i += nrpages, addr += nrpages) { + for (i = 0; !err && i < last_offset; i += nrpages, addr += nrpages) { nrpages = min(last_offset - i, bio_blocks); /* read ahead node pages */ - err = ra_sum_pages(sbi, &page_list, addr, nrpages); - if (err) - return err; + nrpages = ra_sum_pages(sbi, &page_list, addr, nrpages); + if (!nrpages) + return -ENOMEM; list_for_each_entry_safe(page, tmp, &page_list, lru) { + if (err) + goto skip; lock_page(page); if (unlikely(!PageUptodate(page))) { @@ -1648,9 +1716,9 @@ int restore_node_summary(struct f2fs_sb_info *sbi, sum_entry->ofs_in_node = 0; sum_entry++; } - - list_del(&page->lru); unlock_page(page); +skip: + list_del(&page->lru); __free_pages(page, 0); } } @@ -1709,7 +1777,7 @@ void flush_nat_entries(struct f2fs_sb_info *sbi) struct f2fs_nm_info *nm_i = NM_I(sbi); struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); struct f2fs_summary_block *sum = curseg->sum_blk; - struct list_head *cur, *n; + struct nat_entry *ne, *cur; struct page *page = NULL; struct f2fs_nat_block *nat_blk = NULL; nid_t start_nid = 0, end_nid = 0; @@ -1721,18 +1789,17 @@ void flush_nat_entries(struct f2fs_sb_info *sbi) mutex_lock(&curseg->curseg_mutex); /* 1) flush dirty nat caches */ - list_for_each_safe(cur, n, &nm_i->dirty_nat_entries) { - struct nat_entry *ne; + list_for_each_entry_safe(ne, cur, &nm_i->dirty_nat_entries, list) { nid_t nid; struct f2fs_nat_entry raw_ne; int offset = -1; block_t new_blkaddr; - ne = list_entry(cur, struct nat_entry, list); - nid = nat_get_nid(ne); - if (nat_get_blkaddr(ne) == NEW_ADDR) continue; + + nid = nat_get_nid(ne); + if (flushed) goto to_nat_page; @@ -1783,16 +1850,12 @@ flush_now: } else { write_lock(&nm_i->nat_tree_lock); __clear_nat_cache_dirty(nm_i, ne); - ne->checkpointed = true; write_unlock(&nm_i->nat_tree_lock); } } if (!flushed) mutex_unlock(&curseg->curseg_mutex); f2fs_put_page(page, 1); - - /* 2) shrink nat caches if necessary */ - try_to_free_nats(sbi, nm_i->nat_cnt - NM_WOUT_THRESHOLD); } static int init_node_manager(struct f2fs_sb_info *sbi) @@ -1807,10 +1870,14 @@ static int init_node_manager(struct f2fs_sb_info *sbi) /* segment_count_nat includes pair segment so divide to 2. */ nat_segs = le32_to_cpu(sb_raw->segment_count_nat) >> 1; nat_blocks = nat_segs << le32_to_cpu(sb_raw->log_blocks_per_seg); - nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nat_blocks; + + /* not used nids: 0, node, meta, (and root counted as valid node) */ + nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nat_blocks - 3; nm_i->fcnt = 0; nm_i->nat_cnt = 0; + nm_i->ram_thresh = DEF_RAM_THRESHOLD; + INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC); INIT_LIST_HEAD(&nm_i->free_nid_list); INIT_RADIX_TREE(&nm_i->nat_root, GFP_ATOMIC); INIT_LIST_HEAD(&nm_i->nat_entries); @@ -1864,8 +1931,11 @@ void destroy_node_manager(struct f2fs_sb_info *sbi) spin_lock(&nm_i->free_nid_list_lock); list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) { f2fs_bug_on(i->state == NID_ALLOC); - __del_from_free_nid_list(i); + __del_from_free_nid_list(nm_i, i); nm_i->fcnt--; + spin_unlock(&nm_i->free_nid_list_lock); + kmem_cache_free(free_nid_slab, i); + spin_lock(&nm_i->free_nid_list_lock); } f2fs_bug_on(nm_i->fcnt); spin_unlock(&nm_i->free_nid_list_lock); @@ -1875,11 +1945,9 @@ void destroy_node_manager(struct f2fs_sb_info *sbi) while ((found = __gang_lookup_nat_cache(nm_i, nid, NATVEC_SIZE, natvec))) { unsigned idx; - for (idx = 0; idx < found; idx++) { - struct nat_entry *e = natvec[idx]; - nid = nat_get_nid(e) + 1; - __del_from_nat_cache(nm_i, e); - } + nid = nat_get_nid(natvec[found - 1]) + 1; + for (idx = 0; idx < found; idx++) + __del_from_nat_cache(nm_i, natvec[idx]); } f2fs_bug_on(nm_i->nat_cnt); write_unlock(&nm_i->nat_tree_lock); @@ -1892,12 +1960,12 @@ void destroy_node_manager(struct f2fs_sb_info *sbi) int __init create_node_manager_caches(void) { nat_entry_slab = f2fs_kmem_cache_create("nat_entry", - sizeof(struct nat_entry), NULL); + sizeof(struct nat_entry)); if (!nat_entry_slab) return -ENOMEM; free_nid_slab = f2fs_kmem_cache_create("free_nid", - sizeof(struct free_nid), NULL); + sizeof(struct free_nid)); if (!free_nid_slab) { kmem_cache_destroy(nat_entry_slab); return -ENOMEM; diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index c4c7988..5decc1a 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -17,14 +17,11 @@ /* # of pages to perform readahead before building free nids */ #define FREE_NID_PAGES 4 -/* maximum # of free node ids to produce during build_free_nids */ -#define MAX_FREE_NIDS (NAT_ENTRY_PER_BLOCK * FREE_NID_PAGES) - /* maximum readahead size for node during getting data blocks */ #define MAX_RA_NODE 128 -/* maximum cached nat entries to manage memory footprint */ -#define NM_WOUT_THRESHOLD (64 * NAT_ENTRY_PER_BLOCK) +/* control the memory footprint threshold (10MB per 1GB ram) */ +#define DEF_RAM_THRESHOLD 10 /* vector size for gang look-up from nat cache that consists of radix tree */ #define NATVEC_SIZE 64 @@ -45,6 +42,7 @@ struct node_info { struct nat_entry { struct list_head list; /* for clean or dirty nat list */ bool checkpointed; /* whether it is checkpointed or not */ + bool fsync_done; /* whether the latest node has fsync mark */ struct node_info ni; /* in-memory node information */ }; @@ -58,9 +56,15 @@ struct nat_entry { #define nat_set_version(nat, v) (nat->ni.version = v) #define __set_nat_cache_dirty(nm_i, ne) \ - list_move_tail(&ne->list, &nm_i->dirty_nat_entries); + do { \ + ne->checkpointed = false; \ + list_move_tail(&ne->list, &nm_i->dirty_nat_entries); \ + } while (0); #define __clear_nat_cache_dirty(nm_i, ne) \ - list_move_tail(&ne->list, &nm_i->nat_entries); + do { \ + ne->checkpointed = true; \ + list_move_tail(&ne->list, &nm_i->nat_entries); \ + } while (0); #define inc_node_version(version) (++version) static inline void node_info_from_raw_nat(struct node_info *ni, @@ -71,6 +75,11 @@ static inline void node_info_from_raw_nat(struct node_info *ni, ni->version = raw_ne->version; } +enum nid_type { + FREE_NIDS, /* indicates the free nid list */ + NAT_ENTRIES /* indicates the cached nat entry */ +}; + /* * For free nid mangement */ @@ -236,7 +245,7 @@ static inline bool IS_DNODE(struct page *node_page) { unsigned int ofs = ofs_of_node(node_page); - if (ofs == XATTR_NODE_OFFSET) + if (f2fs_has_xattr_block(ofs)) return false; if (ofs == 3 || ofs == 4 + NIDS_PER_BLOCK || diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index 976a7a9..b1ae89f 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -27,14 +27,12 @@ bool space_for_roll_forward(struct f2fs_sb_info *sbi) static struct fsync_inode_entry *get_fsync_inode(struct list_head *head, nid_t ino) { - struct list_head *this; struct fsync_inode_entry *entry; - list_for_each(this, head) { - entry = list_entry(this, struct fsync_inode_entry, list); + list_for_each_entry(entry, head, list) if (entry->inode->i_ino == ino) return entry; - } + return NULL; } @@ -136,7 +134,7 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head) /* get node pages in the current segment */ curseg = CURSEG_I(sbi, CURSEG_WARM_NODE); - blkaddr = START_BLOCK(sbi, curseg->segno) + curseg->next_blkoff; + blkaddr = NEXT_FREE_BLKADDR(sbi, curseg); /* read node page */ page = alloc_page(GFP_F2FS_ZERO); @@ -218,13 +216,12 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info *sbi, { struct seg_entry *sentry; unsigned int segno = GET_SEGNO(sbi, blkaddr); - unsigned short blkoff = GET_SEGOFF_FROM_SEG0(sbi, blkaddr) & - (sbi->blocks_per_seg - 1); + unsigned short blkoff = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); + struct f2fs_summary_block *sum_node; struct f2fs_summary sum; + struct page *sum_page, *node_page; nid_t ino, nid; - void *kaddr; struct inode *inode; - struct page *node_page; unsigned int offset; block_t bidx; int i; @@ -238,18 +235,15 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info *sbi, struct curseg_info *curseg = CURSEG_I(sbi, i); if (curseg->segno == segno) { sum = curseg->sum_blk->entries[blkoff]; - break; + goto got_it; } } - if (i > CURSEG_COLD_DATA) { - struct page *sum_page = get_sum_page(sbi, segno); - struct f2fs_summary_block *sum_node; - kaddr = page_address(sum_page); - sum_node = (struct f2fs_summary_block *)kaddr; - sum = sum_node->entries[blkoff]; - f2fs_put_page(sum_page, 1); - } + sum_page = get_sum_page(sbi, segno); + sum_node = (struct f2fs_summary_block *)page_address(sum_page); + sum = sum_node->entries[blkoff]; + f2fs_put_page(sum_page, 1); +got_it: /* Use the locked dnode page and inode */ nid = le32_to_cpu(sum.nid); if (dn->inode->i_ino == nid) { @@ -301,6 +295,9 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode, if (recover_inline_data(inode, page)) goto out; + if (recover_xattr_data(inode, page, blkaddr)) + goto out; + start = start_bidx_of_node(ofs_of_node(page), fi); if (IS_INODE(page)) end = start + ADDRS_PER_INODE(fi); @@ -317,7 +314,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode, goto out; } - wait_on_page_writeback(dn.node_page); + f2fs_wait_on_page_writeback(dn.node_page, NODE); get_node_info(sbi, dn.nid, &ni); f2fs_bug_on(ni.ino != ino_of_node(page)); @@ -437,7 +434,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi) bool need_writecp = false; fsync_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_inode_entry", - sizeof(struct fsync_inode_entry), NULL); + sizeof(struct fsync_inode_entry)); if (!fsync_entry_slab) return -ENOMEM; diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 7caac5f..085f548 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -13,6 +13,7 @@ #include <linux/bio.h> #include <linux/blkdev.h> #include <linux/prefetch.h> +#include <linux/kthread.h> #include <linux/vmalloc.h> #include <linux/swap.h> @@ -24,6 +25,7 @@ #define __reverse_ffz(x) __reverse_ffs(~(x)) static struct kmem_cache *discard_entry_slab; +static struct kmem_cache *flush_cmd_slab; /* * __reverse_ffs is copied from include/asm-generic/bitops/__ffs.h since @@ -195,6 +197,73 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi) f2fs_sync_fs(sbi->sb, true); } +static int issue_flush_thread(void *data) +{ + struct f2fs_sb_info *sbi = data; + struct f2fs_sm_info *sm_i = SM_I(sbi); + wait_queue_head_t *q = &sm_i->flush_wait_queue; +repeat: + if (kthread_should_stop()) + return 0; + + spin_lock(&sm_i->issue_lock); + if (sm_i->issue_list) { + sm_i->dispatch_list = sm_i->issue_list; + sm_i->issue_list = sm_i->issue_tail = NULL; + } + spin_unlock(&sm_i->issue_lock); + + if (sm_i->dispatch_list) { + struct bio *bio = bio_alloc(GFP_NOIO, 0); + struct flush_cmd *cmd, *next; + int ret; + + bio->bi_bdev = sbi->sb->s_bdev; + ret = submit_bio_wait(WRITE_FLUSH, bio); + + for (cmd = sm_i->dispatch_list; cmd; cmd = next) { + cmd->ret = ret; + next = cmd->next; + complete(&cmd->wait); + } + sm_i->dispatch_list = NULL; + } + + wait_event_interruptible(*q, kthread_should_stop() || sm_i->issue_list); + goto repeat; +} + +int f2fs_issue_flush(struct f2fs_sb_info *sbi) +{ + struct f2fs_sm_info *sm_i = SM_I(sbi); + struct flush_cmd *cmd; + int ret; + + if (!test_opt(sbi, FLUSH_MERGE)) + return blkdev_issue_flush(sbi->sb->s_bdev, GFP_KERNEL, NULL); + + cmd = f2fs_kmem_cache_alloc(flush_cmd_slab, GFP_ATOMIC); + cmd->next = NULL; + cmd->ret = 0; + init_completion(&cmd->wait); + + spin_lock(&sm_i->issue_lock); + if (sm_i->issue_list) + sm_i->issue_tail->next = cmd; + else + sm_i->issue_list = cmd; + sm_i->issue_tail = cmd; + spin_unlock(&sm_i->issue_lock); + + if (!sm_i->dispatch_list) + wake_up(&sm_i->flush_wait_queue); + + wait_for_completion(&cmd->wait); + ret = cmd->ret; + kmem_cache_free(flush_cmd_slab, cmd); + return ret; +} + static void __locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno, enum dirty_type dirty_type) { @@ -340,8 +409,7 @@ static void set_prefree_as_free_segments(struct f2fs_sb_info *sbi) void clear_prefree_segments(struct f2fs_sb_info *sbi) { struct list_head *head = &(SM_I(sbi)->discard_list); - struct list_head *this, *next; - struct discard_entry *entry; + struct discard_entry *entry, *this; struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); unsigned long *prefree_map = dirty_i->dirty_segmap[PRE]; unsigned int total_segs = TOTAL_SEGS(sbi); @@ -370,8 +438,7 @@ void clear_prefree_segments(struct f2fs_sb_info *sbi) mutex_unlock(&dirty_i->seglist_lock); /* send small discards */ - list_for_each_safe(this, next, head) { - entry = list_entry(this, struct discard_entry, list); + list_for_each_entry_safe(entry, this, head, list) { f2fs_issue_discard(sbi, entry->blkaddr, entry->len); list_del(&entry->list); SM_I(sbi)->nr_discards -= entry->len; @@ -405,7 +472,7 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del) se = get_seg_entry(sbi, segno); new_vblocks = se->valid_blocks + del; - offset = GET_SEGOFF_FROM_SEG0(sbi, blkaddr) & (sbi->blocks_per_seg - 1); + offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); f2fs_bug_on((new_vblocks >> (sizeof(unsigned short) << 3) || (new_vblocks > sbi->blocks_per_seg))); @@ -434,12 +501,14 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del) get_sec_entry(sbi, segno)->valid_blocks += del; } -static void refresh_sit_entry(struct f2fs_sb_info *sbi, - block_t old_blkaddr, block_t new_blkaddr) +void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new) { - update_sit_entry(sbi, new_blkaddr, 1); - if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) - update_sit_entry(sbi, old_blkaddr, -1); + update_sit_entry(sbi, new, 1); + if (GET_SEGNO(sbi, old) != NULL_SEGNO) + update_sit_entry(sbi, old, -1); + + locate_dirty_segment(sbi, GET_SEGNO(sbi, old)); + locate_dirty_segment(sbi, GET_SEGNO(sbi, new)); } void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr) @@ -881,17 +950,15 @@ void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, stat_inc_block_count(sbi, curseg); + if (!__has_curseg_space(sbi, type)) + sit_i->s_ops->allocate_segment(sbi, type, false); /* * SIT information should be updated before segment allocation, * since SSR needs latest valid block information. */ refresh_sit_entry(sbi, old_blkaddr, *new_blkaddr); - - if (!__has_curseg_space(sbi, type)) - sit_i->s_ops->allocate_segment(sbi, type, false); - locate_dirty_segment(sbi, old_cursegno); - locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr)); + mutex_unlock(&sit_i->sentry_lock); if (page && IS_NODESEG(type)) @@ -987,14 +1054,11 @@ void recover_data_page(struct f2fs_sb_info *sbi, change_curseg(sbi, type, true); } - curseg->next_blkoff = GET_SEGOFF_FROM_SEG0(sbi, new_blkaddr) & - (sbi->blocks_per_seg - 1); + curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr); __add_sum_entry(sbi, type, sum); refresh_sit_entry(sbi, old_blkaddr, new_blkaddr); - locate_dirty_segment(sbi, old_cursegno); - locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr)); mutex_unlock(&sit_i->sentry_lock); mutex_unlock(&curseg->curseg_mutex); @@ -1028,8 +1092,7 @@ void rewrite_node_page(struct f2fs_sb_info *sbi, curseg->next_segno = segno; change_curseg(sbi, type, true); } - curseg->next_blkoff = GET_SEGOFF_FROM_SEG0(sbi, new_blkaddr) & - (sbi->blocks_per_seg - 1); + curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr); __add_sum_entry(sbi, type, sum); /* change the current log to the next block addr in advance */ @@ -1037,28 +1100,50 @@ void rewrite_node_page(struct f2fs_sb_info *sbi, curseg->next_segno = next_segno; change_curseg(sbi, type, true); } - curseg->next_blkoff = GET_SEGOFF_FROM_SEG0(sbi, next_blkaddr) & - (sbi->blocks_per_seg - 1); + curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, next_blkaddr); /* rewrite node page */ set_page_writeback(page); f2fs_submit_page_mbio(sbi, page, new_blkaddr, &fio); f2fs_submit_merged_bio(sbi, NODE, WRITE); refresh_sit_entry(sbi, old_blkaddr, new_blkaddr); - locate_dirty_segment(sbi, old_cursegno); - locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr)); mutex_unlock(&sit_i->sentry_lock); mutex_unlock(&curseg->curseg_mutex); } +static inline bool is_merged_page(struct f2fs_sb_info *sbi, + struct page *page, enum page_type type) +{ + enum page_type btype = PAGE_TYPE_OF_BIO(type); + struct f2fs_bio_info *io = &sbi->write_io[btype]; + struct bio_vec *bvec; + int i; + + down_read(&io->io_rwsem); + if (!io->bio) + goto out; + + bio_for_each_segment_all(bvec, io->bio, i) { + if (page == bvec->bv_page) { + up_read(&io->io_rwsem); + return true; + } + } + +out: + up_read(&io->io_rwsem); + return false; +} + void f2fs_wait_on_page_writeback(struct page *page, enum page_type type) { struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb); if (PageWriteback(page)) { - f2fs_submit_merged_bio(sbi, type, WRITE); + if (is_merged_page(sbi, page, type)) + f2fs_submit_merged_bio(sbi, type, WRITE); wait_on_page_writeback(page); } } @@ -1167,9 +1252,12 @@ static int read_normal_summaries(struct f2fs_sb_info *sbi, int type) ns->ofs_in_node = 0; } } else { - if (restore_node_summary(sbi, segno, sum)) { + int err; + + err = restore_node_summary(sbi, segno, sum); + if (err) { f2fs_put_page(new, 1); - return -EINVAL; + return err; } } } @@ -1190,6 +1278,7 @@ static int read_normal_summaries(struct f2fs_sb_info *sbi, int type) static int restore_curseg_summaries(struct f2fs_sb_info *sbi) { int type = CURSEG_HOT_DATA; + int err; if (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_COMPACT_SUM_FLAG)) { /* restore for compacted data summary */ @@ -1198,9 +1287,12 @@ static int restore_curseg_summaries(struct f2fs_sb_info *sbi) type = CURSEG_HOT_NODE; } - for (; type <= CURSEG_COLD_NODE; type++) - if (read_normal_summaries(sbi, type)) - return -EINVAL; + for (; type <= CURSEG_COLD_NODE; type++) { + err = read_normal_summaries(sbi, type); + if (err) + return err; + } + return 0; } @@ -1583,47 +1675,6 @@ static int build_curseg(struct f2fs_sb_info *sbi) return restore_curseg_summaries(sbi); } -static int ra_sit_pages(struct f2fs_sb_info *sbi, int start, int nrpages) -{ - struct address_space *mapping = META_MAPPING(sbi); - struct page *page; - block_t blk_addr, prev_blk_addr = 0; - int sit_blk_cnt = SIT_BLK_CNT(sbi); - int blkno = start; - struct f2fs_io_info fio = { - .type = META, - .rw = READ_SYNC | REQ_META | REQ_PRIO - }; - - for (; blkno < start + nrpages && blkno < sit_blk_cnt; blkno++) { - - blk_addr = current_sit_addr(sbi, blkno * SIT_ENTRY_PER_BLOCK); - - if (blkno != start && prev_blk_addr + 1 != blk_addr) - break; - prev_blk_addr = blk_addr; -repeat: - page = grab_cache_page(mapping, blk_addr); - if (!page) { - cond_resched(); - goto repeat; - } - if (PageUptodate(page)) { - mark_page_accessed(page); - f2fs_put_page(page, 1); - continue; - } - - f2fs_submit_page_mbio(sbi, page, blk_addr, &fio); - - mark_page_accessed(page); - f2fs_put_page(page, 0); - } - - f2fs_submit_merged_bio(sbi, META, READ); - return blkno - start; -} - static void build_sit_entries(struct f2fs_sb_info *sbi) { struct sit_info *sit_i = SIT_I(sbi); @@ -1635,7 +1686,7 @@ static void build_sit_entries(struct f2fs_sb_info *sbi) int nrpages = MAX_BIO_BLOCKS(max_hw_blocks(sbi)); do { - readed = ra_sit_pages(sbi, start_blk, nrpages); + readed = ra_meta_pages(sbi, start_blk, nrpages, META_SIT); start = start_blk * sit_i->sents_per_block; end = (start_blk + readed) * sit_i->sents_per_block; @@ -1781,6 +1832,7 @@ int build_segment_manager(struct f2fs_sb_info *sbi) { struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); + dev_t dev = sbi->sb->s_bdev->bd_dev; struct f2fs_sm_info *sm_info; int err; @@ -1799,7 +1851,8 @@ int build_segment_manager(struct f2fs_sb_info *sbi) sm_info->ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); sm_info->main_segments = le32_to_cpu(raw_super->segment_count_main); sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); - sm_info->rec_prefree_segments = DEF_RECLAIM_PREFREE_SEGMENTS; + sm_info->rec_prefree_segments = sm_info->main_segments * + DEF_RECLAIM_PREFREE_SEGMENTS / 100; sm_info->ipu_policy = F2FS_IPU_DISABLE; sm_info->min_ipu_util = DEF_MIN_IPU_UTIL; @@ -1807,6 +1860,16 @@ int build_segment_manager(struct f2fs_sb_info *sbi) sm_info->nr_discards = 0; sm_info->max_discards = 0; + if (test_opt(sbi, FLUSH_MERGE)) { + spin_lock_init(&sm_info->issue_lock); + init_waitqueue_head(&sm_info->flush_wait_queue); + + sm_info->f2fs_issue_flush = kthread_run(issue_flush_thread, sbi, + "f2fs_flush-%u:%u", MAJOR(dev), MINOR(dev)); + if (IS_ERR(sm_info->f2fs_issue_flush)) + return PTR_ERR(sm_info->f2fs_issue_flush); + } + err = build_sit_info(sbi); if (err) return err; @@ -1915,6 +1978,8 @@ void destroy_segment_manager(struct f2fs_sb_info *sbi) struct f2fs_sm_info *sm_info = SM_I(sbi); if (!sm_info) return; + if (sm_info->f2fs_issue_flush) + kthread_stop(sm_info->f2fs_issue_flush); destroy_dirty_segmap(sbi); destroy_curseg(sbi); destroy_free_segmap(sbi); @@ -1926,13 +1991,20 @@ void destroy_segment_manager(struct f2fs_sb_info *sbi) int __init create_segment_manager_caches(void) { discard_entry_slab = f2fs_kmem_cache_create("discard_entry", - sizeof(struct discard_entry), NULL); + sizeof(struct discard_entry)); if (!discard_entry_slab) return -ENOMEM; + flush_cmd_slab = f2fs_kmem_cache_create("flush_command", + sizeof(struct flush_cmd)); + if (!flush_cmd_slab) { + kmem_cache_destroy(discard_entry_slab); + return -ENOMEM; + } return 0; } void destroy_segment_manager_caches(void) { kmem_cache_destroy(discard_entry_slab); + kmem_cache_destroy(flush_cmd_slab); } diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 5731682..7091204 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -14,7 +14,7 @@ #define NULL_SEGNO ((unsigned int)(~0)) #define NULL_SECNO ((unsigned int)(~0)) -#define DEF_RECLAIM_PREFREE_SEGMENTS 100 /* 200MB of prefree segments */ +#define DEF_RECLAIM_PREFREE_SEGMENTS 5 /* 5% over total segments */ /* L: Logical segment # in volume, R: Relative segment # in main area */ #define GET_L2R_SEGNO(free_i, segno) (segno - free_i->start_segno) @@ -57,6 +57,9 @@ ((blk_addr) - SM_I(sbi)->seg0_blkaddr) #define GET_SEGNO_FROM_SEG0(sbi, blk_addr) \ (GET_SEGOFF_FROM_SEG0(sbi, blk_addr) >> sbi->log_blocks_per_seg) +#define GET_BLKOFF_FROM_SEG0(sbi, blk_addr) \ + (GET_SEGOFF_FROM_SEG0(sbi, blk_addr) & (sbi->blocks_per_seg - 1)) + #define GET_SEGNO(sbi, blk_addr) \ (((blk_addr == NULL_ADDR) || (blk_addr == NEW_ADDR)) ? \ NULL_SEGNO : GET_L2R_SEGNO(FREE_I(sbi), \ @@ -377,26 +380,12 @@ static inline void get_sit_bitmap(struct f2fs_sb_info *sbi, static inline block_t written_block_count(struct f2fs_sb_info *sbi) { - struct sit_info *sit_i = SIT_I(sbi); - block_t vblocks; - - mutex_lock(&sit_i->sentry_lock); - vblocks = sit_i->written_valid_blocks; - mutex_unlock(&sit_i->sentry_lock); - - return vblocks; + return SIT_I(sbi)->written_valid_blocks; } static inline unsigned int free_segments(struct f2fs_sb_info *sbi) { - struct free_segmap_info *free_i = FREE_I(sbi); - unsigned int free_segs; - - read_lock(&free_i->segmap_lock); - free_segs = free_i->free_segments; - read_unlock(&free_i->segmap_lock); - - return free_segs; + return FREE_I(sbi)->free_segments; } static inline int reserved_segments(struct f2fs_sb_info *sbi) @@ -406,14 +395,7 @@ static inline int reserved_segments(struct f2fs_sb_info *sbi) static inline unsigned int free_sections(struct f2fs_sb_info *sbi) { - struct free_segmap_info *free_i = FREE_I(sbi); - unsigned int free_secs; - - read_lock(&free_i->segmap_lock); - free_secs = free_i->free_sections; - read_unlock(&free_i->segmap_lock); - - return free_secs; + return FREE_I(sbi)->free_sections; } static inline unsigned int prefree_segments(struct f2fs_sb_info *sbi) @@ -682,3 +664,46 @@ static inline unsigned int max_hw_blocks(struct f2fs_sb_info *sbi) struct request_queue *q = bdev_get_queue(bdev); return SECTOR_TO_BLOCK(sbi, queue_max_sectors(q)); } + +/* + * It is very important to gather dirty pages and write at once, so that we can + * submit a big bio without interfering other data writes. + * By default, 512 pages for directory data, + * 512 pages (2MB) * 3 for three types of nodes, and + * max_bio_blocks for meta are set. + */ +static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type) +{ + if (type == DATA) + return sbi->blocks_per_seg; + else if (type == NODE) + return 3 * sbi->blocks_per_seg; + else if (type == META) + return MAX_BIO_BLOCKS(max_hw_blocks(sbi)); + else + return 0; +} + +/* + * When writing pages, it'd better align nr_to_write for segment size. + */ +static inline long nr_pages_to_write(struct f2fs_sb_info *sbi, int type, + struct writeback_control *wbc) +{ + long nr_to_write, desired; + + if (wbc->sync_mode != WB_SYNC_NONE) + return 0; + + nr_to_write = wbc->nr_to_write; + + if (type == DATA) + desired = 4096; + else if (type == NODE) + desired = 3 * max_hw_blocks(sbi); + else + desired = MAX_BIO_BLOCKS(max_hw_blocks(sbi)); + + wbc->nr_to_write = desired; + return desired - nr_to_write; +} diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 856bdf9..c756923 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -51,6 +51,7 @@ enum { Opt_disable_ext_identify, Opt_inline_xattr, Opt_inline_data, + Opt_flush_merge, Opt_err, }; @@ -67,6 +68,7 @@ static match_table_t f2fs_tokens = { {Opt_disable_ext_identify, "disable_ext_identify"}, {Opt_inline_xattr, "inline_xattr"}, {Opt_inline_data, "inline_data"}, + {Opt_flush_merge, "flush_merge"}, {Opt_err, NULL}, }; @@ -74,6 +76,7 @@ static match_table_t f2fs_tokens = { enum { GC_THREAD, /* struct f2fs_gc_thread */ SM_INFO, /* struct f2fs_sm_info */ + NM_INFO, /* struct f2fs_nm_info */ F2FS_SBI, /* struct f2fs_sb_info */ }; @@ -92,6 +95,8 @@ static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) return (unsigned char *)sbi->gc_thread; else if (struct_type == SM_INFO) return (unsigned char *)SM_I(sbi); + else if (struct_type == NM_INFO) + return (unsigned char *)NM_I(sbi); else if (struct_type == F2FS_SBI) return (unsigned char *)sbi; return NULL; @@ -183,7 +188,9 @@ F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, max_small_discards, max_discards); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); +F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search); +F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -196,6 +203,8 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(ipu_policy), ATTR_LIST(min_ipu_util), ATTR_LIST(max_victim_search), + ATTR_LIST(dir_level), + ATTR_LIST(ram_thresh), NULL, }; @@ -256,9 +265,9 @@ static int parse_options(struct super_block *sb, char *options) if (!name) return -ENOMEM; - if (!strncmp(name, "on", 2)) + if (strlen(name) == 2 && !strncmp(name, "on", 2)) set_opt(sbi, BG_GC); - else if (!strncmp(name, "off", 3)) + else if (strlen(name) == 3 && !strncmp(name, "off", 3)) clear_opt(sbi, BG_GC); else { kfree(name); @@ -327,6 +336,9 @@ static int parse_options(struct super_block *sb, char *options) case Opt_inline_data: set_opt(sbi, INLINE_DATA); break; + case Opt_flush_merge: + set_opt(sbi, FLUSH_MERGE); + break; default: f2fs_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" or missing value", @@ -353,12 +365,16 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb) fi->i_current_depth = 1; fi->i_advise = 0; rwlock_init(&fi->ext.ext_lock); + init_rwsem(&fi->i_sem); set_inode_flag(fi, FI_NEW_INODE); if (test_opt(F2FS_SB(sb), INLINE_XATTR)) set_inode_flag(fi, FI_INLINE_XATTR); + /* Will be used by directory only */ + fi->i_dir_level = F2FS_SB(sb)->dir_level; + return &fi->vfs_inode; } @@ -526,6 +542,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",disable_ext_identify"); if (test_opt(sbi, INLINE_DATA)) seq_puts(seq, ",inline_data"); + if (test_opt(sbi, FLUSH_MERGE)) + seq_puts(seq, ",flush_merge"); seq_printf(seq, ",active_logs=%u", sbi->active_logs); return 0; @@ -539,13 +557,22 @@ static int segment_info_seq_show(struct seq_file *seq, void *offset) le32_to_cpu(sbi->raw_super->segment_count_main); int i; + seq_puts(seq, "format: segment_type|valid_blocks\n" + "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n"); + for (i = 0; i < total_segs; i++) { - seq_printf(seq, "%u", get_valid_blocks(sbi, i, 1)); - if (i != 0 && (i % 10) == 0) - seq_puts(seq, "\n"); + struct seg_entry *se = get_seg_entry(sbi, i); + + if ((i % 10) == 0) + seq_printf(seq, "%-5d", i); + seq_printf(seq, "%d|%-3u", se->type, + get_valid_blocks(sbi, i, 1)); + if ((i % 10) == 9 || i == (total_segs - 1)) + seq_putc(seq, '\n'); else - seq_puts(seq, " "); + seq_putc(seq, ' '); } + return 0; } @@ -640,6 +667,8 @@ static struct inode *f2fs_nfs_get_inode(struct super_block *sb, if (unlikely(ino < F2FS_ROOT_INO(sbi))) return ERR_PTR(-ESTALE); + if (unlikely(ino >= NM_I(sbi)->max_nid)) + return ERR_PTR(-ESTALE); /* * f2fs_iget isn't quite right if the inode is currently unallocated! @@ -787,6 +816,8 @@ static void init_sb_info(struct f2fs_sb_info *sbi) for (i = 0; i < NR_COUNT_TYPE; i++) atomic_set(&sbi->nr_pages[i], 0); + + sbi->dir_level = DEF_DIR_LEVEL; } /* @@ -898,11 +929,11 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) sbi->por_doing = false; spin_lock_init(&sbi->stat_lock); - mutex_init(&sbi->read_io.io_mutex); + init_rwsem(&sbi->read_io.io_rwsem); sbi->read_io.sbi = sbi; sbi->read_io.bio = NULL; for (i = 0; i < NR_PAGE_TYPE; i++) { - mutex_init(&sbi->write_io[i].io_mutex); + init_rwsem(&sbi->write_io[i].io_rwsem); sbi->write_io[i].sbi = sbi; sbi->write_io[i].bio = NULL; } @@ -991,28 +1022,9 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) goto free_root_inode; } - /* recover fsynced data */ - if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { - err = recover_fsync_data(sbi); - if (err) - f2fs_msg(sb, KERN_ERR, - "Cannot recover all fsync data errno=%ld", err); - } - - /* - * If filesystem is not mounted as read-only then - * do start the gc_thread. - */ - if (!(sb->s_flags & MS_RDONLY)) { - /* After POR, we can run background GC thread.*/ - err = start_gc_thread(sbi); - if (err) - goto free_gc; - } - err = f2fs_build_stats(sbi); if (err) - goto free_gc; + goto free_root_inode; if (f2fs_proc_root) sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root); @@ -1034,17 +1046,36 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) err = kobject_init_and_add(&sbi->s_kobj, &f2fs_ktype, NULL, "%s", sb->s_id); if (err) - goto fail; + goto free_proc; + + /* recover fsynced data */ + if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { + err = recover_fsync_data(sbi); + if (err) + f2fs_msg(sb, KERN_ERR, + "Cannot recover all fsync data errno=%ld", err); + } + /* + * If filesystem is not mounted as read-only then + * do start the gc_thread. + */ + if (!(sb->s_flags & MS_RDONLY)) { + /* After POR, we can run background GC thread.*/ + err = start_gc_thread(sbi); + if (err) + goto free_kobj; + } return 0; -fail: + +free_kobj: + kobject_del(&sbi->s_kobj); +free_proc: if (sbi->s_proc) { remove_proc_entry("segment_info", sbi->s_proc); remove_proc_entry(sb->s_id, f2fs_proc_root); } f2fs_destroy_stats(sbi); -free_gc: - stop_gc_thread(sbi); free_root_inode: dput(sb->s_root); sb->s_root = NULL; @@ -1084,7 +1115,7 @@ MODULE_ALIAS_FS("f2fs"); static int __init init_inodecache(void) { f2fs_inode_cachep = f2fs_kmem_cache_create("f2fs_inode_cache", - sizeof(struct f2fs_inode_info), NULL); + sizeof(struct f2fs_inode_info)); if (!f2fs_inode_cachep) return -ENOMEM; return 0; diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index 89d0422..503c245 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -275,7 +275,7 @@ static void *read_all_xattrs(struct inode *inode, struct page *ipage) inline_size = inline_xattr_size(inode); - txattr_addr = kzalloc(inline_size + size, GFP_KERNEL); + txattr_addr = kzalloc(inline_size + size, GFP_F2FS_ZERO); if (!txattr_addr) return NULL; @@ -407,6 +407,8 @@ int f2fs_getxattr(struct inode *inode, int name_index, const char *name, if (name == NULL) return -EINVAL; name_len = strlen(name); + if (name_len > F2FS_NAME_LEN) + return -ERANGE; base_addr = read_all_xattrs(inode, NULL); if (!base_addr) @@ -590,7 +592,10 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name, f2fs_balance_fs(sbi); f2fs_lock_op(sbi); + /* protect xattr_ver */ + down_write(&F2FS_I(inode)->i_sem); err = __f2fs_setxattr(inode, name_index, name, value, value_len, ipage); + up_write(&F2FS_I(inode)->i_sem); f2fs_unlock_op(sbi); return err; diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index da74d87..df53e17 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -183,7 +183,7 @@ struct f2fs_inode { __le32 i_pino; /* parent inode number */ __le32 i_namelen; /* file name length */ __u8 i_name[F2FS_NAME_LEN]; /* file name for SPOR */ - __u8 i_reserved2; /* for backward compatibility */ + __u8 i_dir_level; /* dentry_level for large dir */ struct f2fs_extent i_ext; /* caching a largest extent */ |