diff options
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/balloc.c | 11 | ||||
| -rw-r--r-- | fs/ext2/dir.c | 23 | ||||
| -rw-r--r-- | fs/ext2/ext2.h | 5 | ||||
| -rw-r--r-- | fs/ext2/ialloc.c | 13 | ||||
| -rw-r--r-- | fs/ext2/inode.c | 87 | ||||
| -rw-r--r-- | fs/ext2/super.c | 14 | ||||
| -rw-r--r-- | fs/ext2/xattr.c | 25 |
7 files changed, 80 insertions, 98 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index e8766a3..c6c684b 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c @@ -571,7 +571,7 @@ do_more: error_return: brelse(bitmap_bh); release_blocks(sb, freed); - dquot_free_block(inode, freed); + dquot_free_block_nodirty(inode, freed); } /** @@ -1418,7 +1418,8 @@ allocated: *errp = 0; brelse(bitmap_bh); - dquot_free_block(inode, *count-num); + dquot_free_block_nodirty(inode, *count-num); + mark_inode_dirty(inode); *count = num; return ret_block; @@ -1428,8 +1429,10 @@ out: /* * Undo the block allocation */ - if (!performed_allocation) - dquot_free_block(inode, *count); + if (!performed_allocation) { + dquot_free_block_nodirty(inode, *count); + mark_inode_dirty(inode); + } brelse(bitmap_bh); return 0; } diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index 7516957..7641098 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c @@ -448,6 +448,11 @@ ino_t ext2_inode_by_name(struct inode *dir, struct qstr *child) return res; } +static int ext2_prepare_chunk(struct page *page, loff_t pos, unsigned len) +{ + return __block_write_begin(page, pos, len, ext2_get_block); +} + /* Releases the page */ void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de, struct page *page, struct inode *inode, int update_times) @@ -458,8 +463,7 @@ void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de, int err; lock_page(page); - err = __ext2_write_begin(NULL, page->mapping, pos, len, - AOP_FLAG_UNINTERRUPTIBLE, &page, NULL); + err = ext2_prepare_chunk(page, pos, len); BUG_ON(err); de->inode = cpu_to_le32(inode->i_ino); ext2_set_de_type(de, inode); @@ -542,8 +546,7 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode) got_it: pos = page_offset(page) + (char*)de - (char*)page_address(page); - err = __ext2_write_begin(NULL, page->mapping, pos, rec_len, 0, - &page, NULL); + err = ext2_prepare_chunk(page, pos, rec_len); if (err) goto out_unlock; if (de->inode) { @@ -576,8 +579,7 @@ out_unlock: */ int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page ) { - struct address_space *mapping = page->mapping; - struct inode *inode = mapping->host; + struct inode *inode = page->mapping->host; char *kaddr = page_address(page); unsigned from = ((char*)dir - kaddr) & ~(ext2_chunk_size(inode)-1); unsigned to = ((char *)dir - kaddr) + @@ -601,8 +603,7 @@ int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page ) from = (char*)pde - (char*)page_address(page); pos = page_offset(page) + from; lock_page(page); - err = __ext2_write_begin(NULL, page->mapping, pos, to - from, 0, - &page, NULL); + err = ext2_prepare_chunk(page, pos, to - from); BUG_ON(err); if (pde) pde->rec_len = ext2_rec_len_to_disk(to - from); @@ -621,8 +622,7 @@ out: */ int ext2_make_empty(struct inode *inode, struct inode *parent) { - struct address_space *mapping = inode->i_mapping; - struct page *page = grab_cache_page(mapping, 0); + struct page *page = grab_cache_page(inode->i_mapping, 0); unsigned chunk_size = ext2_chunk_size(inode); struct ext2_dir_entry_2 * de; int err; @@ -631,8 +631,7 @@ int ext2_make_empty(struct inode *inode, struct inode *parent) if (!page) return -ENOMEM; - err = __ext2_write_begin(NULL, page->mapping, 0, chunk_size, 0, - &page, NULL); + err = ext2_prepare_chunk(page, 0, chunk_size); if (err) { unlock_page(page); goto fail; diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h index 52b34f1..416daa6 100644 --- a/fs/ext2/ext2.h +++ b/fs/ext2/ext2.h @@ -119,7 +119,7 @@ extern unsigned long ext2_count_free (struct buffer_head *, unsigned); /* inode.c */ extern struct inode *ext2_iget (struct super_block *, unsigned long); extern int ext2_write_inode (struct inode *, struct writeback_control *); -extern void ext2_delete_inode (struct inode *); +extern void ext2_evict_inode(struct inode *); extern int ext2_sync_inode (struct inode *); extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int); extern int ext2_setattr (struct dentry *, struct iattr *); @@ -127,9 +127,6 @@ extern void ext2_set_inode_flags(struct inode *inode); extern void ext2_get_inode_flags(struct ext2_inode_info *); extern int ext2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len); -int __ext2_write_begin(struct file *file, struct address_space *mapping, - loff_t pos, unsigned len, unsigned flags, - struct page **pagep, void **fsdata); /* ioctl.c */ extern long ext2_ioctl(struct file *, unsigned int, unsigned long); diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index 938dbc7..ad70479 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -118,19 +118,14 @@ void ext2_free_inode (struct inode * inode) * Note: we must free any quota before locking the superblock, * as writing the quota to disk may need the lock as well. */ - if (!is_bad_inode(inode)) { - /* Quota is already initialized in iput() */ - ext2_xattr_delete_inode(inode); - dquot_free_inode(inode); - dquot_drop(inode); - } + /* Quota is already initialized in iput() */ + ext2_xattr_delete_inode(inode); + dquot_free_inode(inode); + dquot_drop(inode); es = EXT2_SB(sb)->s_es; is_directory = S_ISDIR(inode->i_mode); - /* Do this BEFORE marking the inode not in use or returning an error */ - clear_inode (inode); - if (ino < EXT2_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) { ext2_error (sb, "ext2_free_inode", diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 3675088..940c961 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -69,26 +69,42 @@ static void ext2_write_failed(struct address_space *mapping, loff_t to) /* * Called at the last iput() if i_nlink is zero. */ -void ext2_delete_inode (struct inode * inode) +void ext2_evict_inode(struct inode * inode) { - if (!is_bad_inode(inode)) + struct ext2_block_alloc_info *rsv; + int want_delete = 0; + + if (!inode->i_nlink && !is_bad_inode(inode)) { + want_delete = 1; dquot_initialize(inode); + } else { + dquot_drop(inode); + } + truncate_inode_pages(&inode->i_data, 0); - if (is_bad_inode(inode)) - goto no_delete; - EXT2_I(inode)->i_dtime = get_seconds(); - mark_inode_dirty(inode); - __ext2_write_inode(inode, inode_needs_sync(inode)); + if (want_delete) { + /* set dtime */ + EXT2_I(inode)->i_dtime = get_seconds(); + mark_inode_dirty(inode); + __ext2_write_inode(inode, inode_needs_sync(inode)); + /* truncate to 0 */ + inode->i_size = 0; + if (inode->i_blocks) + ext2_truncate_blocks(inode, 0); + } - inode->i_size = 0; - if (inode->i_blocks) - ext2_truncate_blocks(inode, 0); - ext2_free_inode (inode); + invalidate_inode_buffers(inode); + end_writeback(inode); - return; -no_delete: - clear_inode(inode); /* We must guarantee clearing of inode... */ + ext2_discard_reservation(inode); + rsv = EXT2_I(inode)->i_block_alloc_info; + EXT2_I(inode)->i_block_alloc_info = NULL; + if (unlikely(rsv)) + kfree(rsv); + + if (want_delete) + ext2_free_inode(inode); } typedef struct { @@ -423,6 +439,8 @@ static int ext2_alloc_blocks(struct inode *inode, failed_out: for (i = 0; i <index; i++) ext2_free_blocks(inode, new_blocks[i], 1); + if (index) + mark_inode_dirty(inode); return ret; } @@ -765,14 +783,6 @@ ext2_readpages(struct file *file, struct address_space *mapping, return mpage_readpages(mapping, pages, nr_pages, ext2_get_block); } -int __ext2_write_begin(struct file *file, struct address_space *mapping, - loff_t pos, unsigned len, unsigned flags, - struct page **pagep, void **fsdata) -{ - return block_write_begin_newtrunc(file, mapping, pos, len, flags, - pagep, fsdata, ext2_get_block); -} - static int ext2_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, @@ -780,8 +790,8 @@ ext2_write_begin(struct file *file, struct address_space *mapping, { int ret; - *pagep = NULL; - ret = __ext2_write_begin(file, mapping, pos, len, flags, pagep, fsdata); + ret = block_write_begin(mapping, pos, len, flags, pagep, + ext2_get_block); if (ret < 0) ext2_write_failed(mapping, pos + len); return ret; @@ -806,13 +816,8 @@ ext2_nobh_write_begin(struct file *file, struct address_space *mapping, { int ret; - /* - * Dir-in-pagecache still uses ext2_write_begin. Would have to rework - * directory handling code to pass around offsets rather than struct - * pages in order to make this work easily. - */ - ret = nobh_write_begin_newtrunc(file, mapping, pos, len, flags, pagep, - fsdata, ext2_get_block); + ret = nobh_write_begin(mapping, pos, len, flags, pagep, fsdata, + ext2_get_block); if (ret < 0) ext2_write_failed(mapping, pos + len); return ret; @@ -838,7 +843,7 @@ ext2_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, struct inode *inode = mapping->host; ssize_t ret; - ret = blockdev_direct_IO_newtrunc(rw, iocb, inode, inode->i_sb->s_bdev, + ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, ext2_get_block, NULL); if (ret < 0 && (rw & WRITE)) ext2_write_failed(mapping, offset + iov_length(iov, nr_segs)); @@ -1006,8 +1011,8 @@ static inline void ext2_free_data(struct inode *inode, __le32 *p, __le32 *q) else if (block_to_free == nr - count) count++; else { - mark_inode_dirty(inode); ext2_free_blocks (inode, block_to_free, count); + mark_inode_dirty(inode); free_this: block_to_free = nr; count = 1; @@ -1015,8 +1020,8 @@ static inline void ext2_free_data(struct inode *inode, __le32 *p, __le32 *q) } } if (count > 0) { - mark_inode_dirty(inode); ext2_free_blocks (inode, block_to_free, count); + mark_inode_dirty(inode); } } @@ -1169,15 +1174,10 @@ static void ext2_truncate_blocks(struct inode *inode, loff_t offset) __ext2_truncate_blocks(inode, offset); } -int ext2_setsize(struct inode *inode, loff_t newsize) +static int ext2_setsize(struct inode *inode, loff_t newsize) { - loff_t oldsize; int error; - error = inode_newsize_ok(inode, newsize); - if (error) - return error; - if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) return -EINVAL; @@ -1197,10 +1197,7 @@ int ext2_setsize(struct inode *inode, loff_t newsize) if (error) return error; - oldsize = inode->i_size; - i_size_write(inode, newsize); - truncate_pagecache(inode, oldsize, newsize); - + truncate_setsize(inode, newsize); __ext2_truncate_blocks(inode, newsize); inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; @@ -1557,7 +1554,7 @@ int ext2_setattr(struct dentry *dentry, struct iattr *iattr) if (error) return error; } - generic_setattr(inode, iattr); + setattr_copy(inode, iattr); if (iattr->ia_valid & ATTR_MODE) error = ext2_acl_chmod(inode); mark_inode_dirty(inode); diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 7ff43f4..1ec6026 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -195,17 +195,6 @@ static void destroy_inodecache(void) kmem_cache_destroy(ext2_inode_cachep); } -static void ext2_clear_inode(struct inode *inode) -{ - struct ext2_block_alloc_info *rsv = EXT2_I(inode)->i_block_alloc_info; - - dquot_drop(inode); - ext2_discard_reservation(inode); - EXT2_I(inode)->i_block_alloc_info = NULL; - if (unlikely(rsv)) - kfree(rsv); -} - static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs) { struct super_block *sb = vfs->mnt_sb; @@ -299,13 +288,12 @@ static const struct super_operations ext2_sops = { .alloc_inode = ext2_alloc_inode, .destroy_inode = ext2_destroy_inode, .write_inode = ext2_write_inode, - .delete_inode = ext2_delete_inode, + .evict_inode = ext2_evict_inode, .put_super = ext2_put_super, .write_super = ext2_write_super, .sync_fs = ext2_sync_fs, .statfs = ext2_statfs, .remount_fs = ext2_remount, - .clear_inode = ext2_clear_inode, .show_options = ext2_show_options, #ifdef CONFIG_QUOTA .quota_read = ext2_quota_read, diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index 7c39157..8c29ae1 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c @@ -674,6 +674,7 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh, new_bh = sb_getblk(sb, block); if (!new_bh) { ext2_free_blocks(inode, block, 1); + mark_inode_dirty(inode); error = -EIO; goto cleanup; } @@ -703,8 +704,10 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh, * written (only some dirty data were not) so we just proceed * as if nothing happened and cleanup the unused block */ if (error && error != -ENOSPC) { - if (new_bh && new_bh != old_bh) - dquot_free_block(inode, 1); + if (new_bh && new_bh != old_bh) { + dquot_free_block_nodirty(inode, 1); + mark_inode_dirty(inode); + } goto cleanup; } } else @@ -727,6 +730,7 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh, mb_cache_entry_free(ce); ea_bdebug(old_bh, "freeing"); ext2_free_blocks(inode, old_bh->b_blocknr, 1); + mark_inode_dirty(inode); /* We let our caller release old_bh, so we * need to duplicate the buffer before. */ get_bh(old_bh); @@ -736,7 +740,8 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh, le32_add_cpu(&HDR(old_bh)->h_refcount, -1); if (ce) mb_cache_entry_release(ce); - dquot_free_block(inode, 1); + dquot_free_block_nodirty(inode, 1); + mark_inode_dirty(inode); mark_buffer_dirty(old_bh); ea_bdebug(old_bh, "refcount now=%d", le32_to_cpu(HDR(old_bh)->h_refcount)); @@ -799,7 +804,7 @@ ext2_xattr_delete_inode(struct inode *inode) mark_buffer_dirty(bh); if (IS_SYNC(inode)) sync_dirty_buffer(bh); - dquot_free_block(inode, 1); + dquot_free_block_nodirty(inode, 1); } EXT2_I(inode)->i_file_acl = 0; @@ -838,7 +843,7 @@ ext2_xattr_cache_insert(struct buffer_head *bh) ce = mb_cache_entry_alloc(ext2_xattr_cache, GFP_NOFS); if (!ce) return -ENOMEM; - error = mb_cache_entry_insert(ce, bh->b_bdev, bh->b_blocknr, &hash); + error = mb_cache_entry_insert(ce, bh->b_bdev, bh->b_blocknr, hash); if (error) { mb_cache_entry_free(ce); if (error == -EBUSY) { @@ -912,8 +917,8 @@ ext2_xattr_cache_find(struct inode *inode, struct ext2_xattr_header *header) return NULL; /* never share */ ea_idebug(inode, "looking for cached blocks [%x]", (int)hash); again: - ce = mb_cache_entry_find_first(ext2_xattr_cache, 0, - inode->i_sb->s_bdev, hash); + ce = mb_cache_entry_find_first(ext2_xattr_cache, inode->i_sb->s_bdev, + hash); while (ce) { struct buffer_head *bh; @@ -945,7 +950,7 @@ again: unlock_buffer(bh); brelse(bh); } - ce = mb_cache_entry_find_next(ce, 0, inode->i_sb->s_bdev, hash); + ce = mb_cache_entry_find_next(ce, inode->i_sb->s_bdev, hash); } return NULL; } @@ -1021,9 +1026,7 @@ static void ext2_xattr_rehash(struct ext2_xattr_header *header, int __init init_ext2_xattr(void) { - ext2_xattr_cache = mb_cache_create("ext2_xattr", NULL, - sizeof(struct mb_cache_entry) + - sizeof(((struct mb_cache_entry *) 0)->e_indexes[0]), 1, 6); + ext2_xattr_cache = mb_cache_create("ext2_xattr", 6); if (!ext2_xattr_cache) return -ENOMEM; return 0; |
