diff options
author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-06-19 17:53:26 -0700 |
---|---|---|
committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-08-04 14:09:56 -0700 |
commit | 3e72f721390dc14e7b33fda812843c0725810106 (patch) | |
tree | 0d0b84a3dc6ee8cfe3ef18a5a0f16f94b3c3ae75 /fs | |
parent | 7daaea256de42da112805703e3c77f08973156b3 (diff) | |
download | op-kernel-dev-3e72f721390dc14e7b33fda812843c0725810106.zip op-kernel-dev-3e72f721390dc14e7b33fda812843c0725810106.tar.gz |
f2fs: use extent_cache by default
We don't need to handle the duplicate extent information.
The integrated rule is:
- update on-disk extent with largest one tracked by in-memory extent_cache
- destroy extent_tree for the truncation case
- drop per-inode extent_cache by shrinker
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/f2fs/data.c | 357 | ||||
-rw-r--r-- | fs/f2fs/f2fs.h | 20 | ||||
-rw-r--r-- | fs/f2fs/inode.c | 18 | ||||
-rw-r--r-- | fs/f2fs/namei.c | 2 | ||||
-rw-r--r-- | fs/f2fs/shrinker.c | 2 | ||||
-rw-r--r-- | fs/f2fs/super.c | 8 |
6 files changed, 142 insertions, 265 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 55b2a79..be0945c 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -266,103 +266,6 @@ int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index) return err; } -static bool lookup_extent_info(struct inode *inode, pgoff_t pgofs, - struct extent_info *ei) -{ - struct f2fs_inode_info *fi = F2FS_I(inode); - pgoff_t start_fofs, end_fofs; - block_t start_blkaddr; - - read_lock(&fi->ext_lock); - if (fi->ext.len == 0) { - read_unlock(&fi->ext_lock); - return false; - } - - stat_inc_total_hit(inode->i_sb); - - start_fofs = fi->ext.fofs; - end_fofs = fi->ext.fofs + fi->ext.len - 1; - start_blkaddr = fi->ext.blk; - - if (pgofs >= start_fofs && pgofs <= end_fofs) { - *ei = fi->ext; - stat_inc_read_hit(inode->i_sb); - read_unlock(&fi->ext_lock); - return true; - } - read_unlock(&fi->ext_lock); - return false; -} - -static bool update_extent_info(struct inode *inode, pgoff_t fofs, - block_t blkaddr) -{ - struct f2fs_inode_info *fi = F2FS_I(inode); - pgoff_t start_fofs, end_fofs; - block_t start_blkaddr, end_blkaddr; - int need_update = true; - - write_lock(&fi->ext_lock); - - start_fofs = fi->ext.fofs; - end_fofs = fi->ext.fofs + fi->ext.len - 1; - start_blkaddr = fi->ext.blk; - end_blkaddr = fi->ext.blk + fi->ext.len - 1; - - /* Drop and initialize the matched extent */ - if (fi->ext.len == 1 && fofs == start_fofs) - fi->ext.len = 0; - - /* Initial extent */ - if (fi->ext.len == 0) { - if (blkaddr != NULL_ADDR) { - fi->ext.fofs = fofs; - fi->ext.blk = blkaddr; - fi->ext.len = 1; - } - goto end_update; - } - - /* Front merge */ - if (fofs == start_fofs - 1 && blkaddr == start_blkaddr - 1) { - fi->ext.fofs--; - fi->ext.blk--; - fi->ext.len++; - goto end_update; - } - - /* Back merge */ - if (fofs == end_fofs + 1 && blkaddr == end_blkaddr + 1) { - fi->ext.len++; - goto end_update; - } - - /* Split the existing extent */ - if (fi->ext.len > 1 && - fofs >= start_fofs && fofs <= end_fofs) { - if ((end_fofs - fofs) < (fi->ext.len >> 1)) { - fi->ext.len = fofs - start_fofs; - } else { - fi->ext.fofs = fofs + 1; - fi->ext.blk = start_blkaddr + fofs - start_fofs + 1; - fi->ext.len -= fofs - start_fofs + 1; - } - } else { - need_update = false; - } - - /* Finally, if the extent is very fragmented, let's drop the cache. */ - if (fi->ext.len < F2FS_MIN_EXTENT_LEN) { - fi->ext.len = 0; - set_inode_flag(fi, FI_NO_EXTENT); - need_update = true; - } -end_update: - write_unlock(&fi->ext_lock); - return need_update; -} - static struct extent_node *__attach_extent_node(struct f2fs_sb_info *sbi, struct extent_tree *et, struct extent_info *ei, struct rb_node *parent, struct rb_node **p) @@ -394,23 +297,6 @@ static void __detach_extent_node(struct f2fs_sb_info *sbi, et->cached_en = NULL; } -static struct extent_tree *__find_extent_tree(struct f2fs_sb_info *sbi, - nid_t ino) -{ - struct extent_tree *et; - - down_read(&sbi->extent_tree_lock); - et = radix_tree_lookup(&sbi->extent_tree_root, ino); - if (!et) { - up_read(&sbi->extent_tree_lock); - return NULL; - } - atomic_inc(&et->refcount); - up_read(&sbi->extent_tree_lock); - - return et; -} - static struct extent_tree *__grab_extent_tree(struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); @@ -434,6 +320,9 @@ static struct extent_tree *__grab_extent_tree(struct inode *inode) atomic_inc(&et->refcount); up_write(&sbi->extent_tree_lock); + /* never died untill evict_inode */ + F2FS_I(inode)->extent_tree = et; + return et; } @@ -522,7 +411,7 @@ static struct extent_node *__insert_extent_tree(struct f2fs_sb_info *sbi, en->ei.blk = ei->blk; en->ei.len += ei->len; *den = __try_back_merge(sbi, et, en); - return en; + goto update_out; } p = &(*p)->rb_left; } else if (ei->fofs >= en->ei.fofs + en->ei.len) { @@ -530,7 +419,7 @@ static struct extent_node *__insert_extent_tree(struct f2fs_sb_info *sbi, f2fs_bug_on(sbi, !den); en->ei.len += ei->len; *den = __try_front_merge(sbi, et, en); - return en; + goto update_out; } p = &(*p)->rb_right; } else { @@ -538,7 +427,14 @@ static struct extent_node *__insert_extent_tree(struct f2fs_sb_info *sbi, } } - return __attach_extent_node(sbi, et, ei, parent, p); + en = __attach_extent_node(sbi, et, ei, parent, p); + if (!en) + return NULL; +update_out: + if (en->ei.len > et->largest.len) + et->largest = en->ei; + et->cached_en = en; + return en; } static unsigned int __free_extent_tree(struct f2fs_sb_info *sbi, @@ -570,51 +466,56 @@ static unsigned int __free_extent_tree(struct f2fs_sb_info *sbi, return count - et->count; } -static void f2fs_init_extent_tree(struct inode *inode, - struct f2fs_extent *i_ext) +static void __drop_largest_extent(struct inode *inode, pgoff_t fofs) +{ + struct extent_info *largest = &F2FS_I(inode)->extent_tree->largest; + + if (largest->fofs <= fofs && largest->fofs + largest->len > fofs) + largest->len = 0; +} + +void f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct extent_tree *et; struct extent_node *en; struct extent_info ei; - if (le32_to_cpu(i_ext->len) < F2FS_MIN_EXTENT_LEN) + if (!f2fs_may_extent_tree(inode)) return; et = __grab_extent_tree(inode); - write_lock(&et->lock); - if (et->count) - goto out; + if (!i_ext || le32_to_cpu(i_ext->len) < F2FS_MIN_EXTENT_LEN) + return; set_extent_info(&ei, le32_to_cpu(i_ext->fofs), le32_to_cpu(i_ext->blk), le32_to_cpu(i_ext->len)); + write_lock(&et->lock); + if (et->count) + goto out; + en = __insert_extent_tree(sbi, et, &ei, NULL); if (en) { - et->cached_en = en; - spin_lock(&sbi->extent_lock); list_add_tail(&en->list, &sbi->extent_list); spin_unlock(&sbi->extent_lock); } out: write_unlock(&et->lock); - atomic_dec(&et->refcount); } static bool f2fs_lookup_extent_tree(struct inode *inode, pgoff_t pgofs, struct extent_info *ei) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); - struct extent_tree *et; + struct extent_tree *et = F2FS_I(inode)->extent_tree; struct extent_node *en; - trace_f2fs_lookup_extent_tree_start(inode, pgofs); + f2fs_bug_on(sbi, !et); - et = __find_extent_tree(sbi, inode->i_ino); - if (!et) - return false; + trace_f2fs_lookup_extent_tree_start(inode, pgofs); read_lock(&et->lock); en = __lookup_extent_tree(et, pgofs); @@ -631,27 +532,38 @@ static bool f2fs_lookup_extent_tree(struct inode *inode, pgoff_t pgofs, read_unlock(&et->lock); trace_f2fs_lookup_extent_tree_end(inode, pgofs, en); - - atomic_dec(&et->refcount); return en ? true : false; } -static void f2fs_update_extent_tree(struct inode *inode, pgoff_t fofs, +/* return true, if on-disk extent should be updated */ +static bool f2fs_update_extent_tree(struct inode *inode, pgoff_t fofs, block_t blkaddr) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); - struct extent_tree *et; + struct extent_tree *et = F2FS_I(inode)->extent_tree; struct extent_node *en = NULL, *en1 = NULL, *en2 = NULL, *en3 = NULL; struct extent_node *den = NULL; - struct extent_info ei, dei; + struct extent_info ei, dei, prev; unsigned int endofs; - trace_f2fs_update_extent_tree(inode, fofs, blkaddr); + if (!et) + return false; - et = __grab_extent_tree(inode); + trace_f2fs_update_extent_tree(inode, fofs, blkaddr); write_lock(&et->lock); + if (is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) { + write_unlock(&et->lock); + return false; + } + + prev = et->largest; + dei.len = 0; + + /* we do not guarantee that the largest extent is cached all the time */ + __drop_largest_extent(inode, fofs); + /* 1. lookup and remove existing extent info in cache */ en = __lookup_extent_tree(et, fofs); if (!en) @@ -683,6 +595,14 @@ update_extent: if (blkaddr) { set_extent_info(&ei, fofs, blkaddr, 1); en3 = __insert_extent_tree(sbi, et, &ei, &den); + + /* give up extent_cache, if split and small updates happen */ + if (dei.len >= 1 && + prev.len < F2FS_MIN_EXTENT_LEN && + et->largest.len < F2FS_MIN_EXTENT_LEN) { + et->largest.len = 0; + set_inode_flag(F2FS_I(inode), FI_NO_EXTENT); + } } /* 4. update in global extent list */ @@ -714,57 +634,12 @@ update_extent: if (den) kmem_cache_free(extent_node_slab, den); - write_unlock(&et->lock); - atomic_dec(&et->refcount); -} - -void f2fs_preserve_extent_tree(struct inode *inode) -{ - struct extent_tree *et; - struct extent_info *ext = &F2FS_I(inode)->ext; - bool sync = false; - - if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE)) - return; - - et = __find_extent_tree(F2FS_I_SB(inode), inode->i_ino); - if (!et) { - if (ext->len) { - ext->len = 0; - update_inode_page(inode); - } - return; - } - - read_lock(&et->lock); - if (et->count) { - struct extent_node *en; - - if (et->cached_en) { - en = et->cached_en; - } else { - struct rb_node *node = rb_first(&et->root); - - if (!node) - node = rb_last(&et->root); - en = rb_entry(node, struct extent_node, rb_node); - } - - if (__is_extent_same(ext, &en->ei)) - goto out; + if (is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) + __free_extent_tree(sbi, et, true); - *ext = en->ei; - sync = true; - } else if (ext->len) { - ext->len = 0; - sync = true; - } -out: - read_unlock(&et->lock); - atomic_dec(&et->refcount); + write_unlock(&et->lock); - if (sync) - update_inode_page(inode); + return !__is_extent_same(&prev, &et->largest); } unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink) @@ -772,8 +647,7 @@ unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink) struct extent_tree *treevec[EXT_TREE_VEC_SIZE]; struct extent_node *en, *tmp; unsigned long ino = F2FS_ROOT_INO(sbi); - struct radix_tree_iter iter; - void **slot; + struct radix_tree_root *root = &sbi->extent_tree_root; unsigned int found; unsigned int node_cnt = 0, tree_cnt = 0; @@ -788,10 +662,10 @@ unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink) } spin_unlock(&sbi->extent_lock); - if (!down_read_trylock(&sbi->extent_tree_lock)) + if (!down_write_trylock(&sbi->extent_tree_lock)) goto out; - while ((found = radix_tree_gang_lookup(&sbi->extent_tree_root, + while ((found = radix_tree_gang_lookup(root, (void **)treevec, ino, EXT_TREE_VEC_SIZE))) { unsigned i; @@ -799,27 +673,15 @@ unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink) for (i = 0; i < found; i++) { struct extent_tree *et = treevec[i]; - atomic_inc(&et->refcount); write_lock(&et->lock); node_cnt += __free_extent_tree(sbi, et, false); write_unlock(&et->lock); - atomic_dec(&et->refcount); - } - } - up_read(&sbi->extent_tree_lock); - - if (!down_write_trylock(&sbi->extent_tree_lock)) - goto out; - - radix_tree_for_each_slot(slot, &sbi->extent_tree_root, &iter, - F2FS_ROOT_INO(sbi)) { - struct extent_tree *et = (struct extent_tree *)*slot; - - if (!atomic_read(&et->refcount) && !et->count) { - radix_tree_delete(&sbi->extent_tree_root, et->ino); - kmem_cache_free(extent_tree_slab, et); - sbi->total_ext_tree--; - tree_cnt++; + if (!atomic_read(&et->refcount) && !et->count) { + radix_tree_delete(root, et->ino); + kmem_cache_free(extent_tree_slab, et); + sbi->total_ext_tree--; + tree_cnt++; + } } } up_write(&sbi->extent_tree_lock); @@ -829,63 +691,61 @@ out: return node_cnt + tree_cnt; } -void f2fs_destroy_extent_tree(struct inode *inode) +unsigned int f2fs_destroy_extent_node(struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); - struct extent_tree *et; + struct extent_tree *et = F2FS_I(inode)->extent_tree; unsigned int node_cnt = 0; - if (!test_opt(sbi, EXTENT_CACHE)) - return; - - et = __find_extent_tree(sbi, inode->i_ino); if (!et) - goto out; + return 0; - /* free all extent info belong to this extent tree */ write_lock(&et->lock); node_cnt = __free_extent_tree(sbi, et, true); write_unlock(&et->lock); - atomic_dec(&et->refcount); + return node_cnt; +} - /* try to find and delete extent tree entry in radix tree */ - down_write(&sbi->extent_tree_lock); - et = radix_tree_lookup(&sbi->extent_tree_root, inode->i_ino); - if (!et) { - up_write(&sbi->extent_tree_lock); - goto out; +void f2fs_destroy_extent_tree(struct inode *inode) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + struct extent_tree *et = F2FS_I(inode)->extent_tree; + unsigned int node_cnt = 0; + + if (!et) + return; + + if (inode->i_nlink && !is_bad_inode(inode) && et->count) { + atomic_dec(&et->refcount); + return; } + + /* free all extent info belong to this extent tree */ + node_cnt = f2fs_destroy_extent_node(inode); + + /* delete extent tree entry in radix tree */ + down_write(&sbi->extent_tree_lock); + atomic_dec(&et->refcount); f2fs_bug_on(sbi, atomic_read(&et->refcount) || et->count); radix_tree_delete(&sbi->extent_tree_root, inode->i_ino); kmem_cache_free(extent_tree_slab, et); sbi->total_ext_tree--; up_write(&sbi->extent_tree_lock); -out: - trace_f2fs_destroy_extent_tree(inode, node_cnt); - return; -} -void f2fs_init_extent_cache(struct inode *inode, struct f2fs_extent *i_ext) -{ - if (test_opt(F2FS_I_SB(inode), EXTENT_CACHE)) - f2fs_init_extent_tree(inode, i_ext); + F2FS_I(inode)->extent_tree = NULL; - write_lock(&F2FS_I(inode)->ext_lock); - get_extent_info(&F2FS_I(inode)->ext, *i_ext); - write_unlock(&F2FS_I(inode)->ext_lock); + trace_f2fs_destroy_extent_tree(inode, node_cnt); + return; } static bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, struct extent_info *ei) { - if (is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) + if (!f2fs_may_extent_tree(inode)) return false; - if (test_opt(F2FS_I_SB(inode), EXTENT_CACHE)) - return f2fs_lookup_extent_tree(inode, pgofs, ei); - - return lookup_extent_info(inode, pgofs, ei); + return f2fs_lookup_extent_tree(inode, pgofs, ei); } void f2fs_update_extent_cache(struct dnode_of_data *dn) @@ -893,19 +753,15 @@ void f2fs_update_extent_cache(struct dnode_of_data *dn) struct f2fs_inode_info *fi = F2FS_I(dn->inode); pgoff_t fofs; - f2fs_bug_on(F2FS_I_SB(dn->inode), dn->data_blkaddr == NEW_ADDR); - - if (is_inode_flag_set(fi, FI_NO_EXTENT)) + if (!f2fs_may_extent_tree(dn->inode)) return; + f2fs_bug_on(F2FS_I_SB(dn->inode), dn->data_blkaddr == NEW_ADDR); + fofs = start_bidx_of_node(ofs_of_node(dn->node_page), fi) + dn->ofs_in_node; - /* we should call update_extent_info() to update on-disk extent */ - if (test_opt(F2FS_I_SB(dn->inode), EXTENT_CACHE)) - f2fs_update_extent_tree(dn->inode, fofs, dn->data_blkaddr); - - if (update_extent_info(dn->inode, fofs, dn->data_blkaddr)) + if (f2fs_update_extent_tree(dn->inode, fofs, dn->data_blkaddr)) sync_inode_page(dn); } @@ -1109,8 +965,6 @@ alloc: allocate_data_block(sbi, NULL, dn->data_blkaddr, &dn->data_blkaddr, &sum, seg); - - /* direct IO doesn't use extent cache to maximize the performance */ set_data_blkaddr(dn); /* update i_size */ @@ -1119,6 +973,9 @@ alloc: if (i_size_read(dn->inode) < ((fofs + 1) << PAGE_CACHE_SHIFT)) i_size_write(dn->inode, ((fofs + 1) << PAGE_CACHE_SHIFT)); + /* direct IO doesn't use extent cache to maximize the performance */ + __drop_largest_extent(dn->inode, fofs); + return 0; } diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index eeef3eb..1e6f54d 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -349,6 +349,7 @@ struct extent_tree { nid_t ino; /* inode number */ struct rb_root root; /* root of extent info rb-tree */ struct extent_node *cached_en; /* recently accessed extent node */ + struct extent_info largest; /* largested extent info */ rwlock_t lock; /* protect extent info rb-tree */ atomic_t refcount; /* reference count of rb-tree */ unsigned int count; /* # of extent node in rb-tree*/ @@ -420,14 +421,14 @@ struct f2fs_inode_info { unsigned int clevel; /* maximum level of given file name */ nid_t i_xattr_nid; /* node id that contains xattrs */ unsigned long long xattr_ver; /* cp version of xattr modification */ - struct extent_info ext; /* in-memory extent cache entry */ - rwlock_t ext_lock; /* rwlock for single extent cache */ struct inode_entry *dirty_dir; /* the pointer of dirty dir */ struct radix_tree_root inmem_root; /* radix tree for inmem pages */ struct list_head inmem_pages; /* inmemory pages managed by f2fs */ struct mutex inmem_lock; /* lock for inmemory pages */ + struct extent_tree *extent_tree; /* cached extent_tree entry */ + #ifdef CONFIG_F2FS_FS_ENCRYPTION /* Encryption params */ struct f2fs_crypt_info *i_crypt_info; @@ -1548,6 +1549,17 @@ static inline bool is_dot_dotdot(const struct qstr *str) return false; } +static inline bool f2fs_may_extent_tree(struct inode *inode) +{ + mode_t mode = inode->i_mode; + + if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || + is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) + return false; + + return S_ISREG(mode); +} + #define get_inode_mode(i) \ ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) @@ -1755,10 +1767,10 @@ void set_data_blkaddr(struct dnode_of_data *); int reserve_new_block(struct dnode_of_data *); int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); +void f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); +unsigned int f2fs_destroy_extent_node(struct inode *); void f2fs_destroy_extent_tree(struct inode *); -void f2fs_init_extent_cache(struct inode *, struct f2fs_extent *); void f2fs_update_extent_cache(struct dnode_of_data *); -void f2fs_preserve_extent_tree(struct inode *); struct page *get_read_data_page(struct inode *, pgoff_t, int); struct page *find_data_page(struct inode *, pgoff_t); struct page *get_lock_data_page(struct inode *, pgoff_t); diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 757fed2..978a726 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -139,7 +139,7 @@ static int do_read_inode(struct inode *inode) fi->i_pino = le32_to_cpu(ri->i_pino); fi->i_dir_level = ri->i_dir_level; - f2fs_init_extent_cache(inode, &ri->i_ext); + f2fs_init_extent_tree(inode, &ri->i_ext); get_inline_info(fi, ri); @@ -237,10 +237,11 @@ void update_inode(struct inode *inode, struct page *node_page) ri->i_size = cpu_to_le64(i_size_read(inode)); ri->i_blocks = cpu_to_le64(inode->i_blocks); - read_lock(&F2FS_I(inode)->ext_lock); - set_raw_extent(&F2FS_I(inode)->ext, &ri->i_ext); - read_unlock(&F2FS_I(inode)->ext_lock); - + if (F2FS_I(inode)->extent_tree) + set_raw_extent(&F2FS_I(inode)->extent_tree->largest, + &ri->i_ext); + else + memset(&ri->i_ext, 0, sizeof(ri->i_ext)); set_raw_inline(F2FS_I(inode), ri); ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); @@ -331,6 +332,8 @@ void f2fs_evict_inode(struct inode *inode) f2fs_bug_on(sbi, get_dirty_pages(inode)); remove_dirty_dir_inode(inode); + f2fs_destroy_extent_tree(inode); + if (inode->i_nlink || is_bad_inode(inode)) goto no_delete; @@ -350,11 +353,6 @@ no_delete: stat_dec_inline_dir(inode); stat_dec_inline_inode(inode); - /* update extent info in inode */ - if (inode->i_nlink) - f2fs_preserve_extent_tree(inode); - f2fs_destroy_extent_tree(inode); - invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, inode->i_ino); if (xnid) invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index 08656fc..df315dc 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -65,6 +65,8 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode) if (f2fs_may_inline_dentry(inode)) set_inode_flag(F2FS_I(inode), FI_INLINE_DENTRY); + f2fs_init_extent_tree(inode, NULL); + stat_inc_inline_inode(inode); stat_inc_inline_dir(inode); diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c index 1f0a131..9aa4235 100644 --- a/fs/f2fs/shrinker.c +++ b/fs/f2fs/shrinker.c @@ -117,6 +117,8 @@ void f2fs_join_shrinker(struct f2fs_sb_info *sbi) void f2fs_leave_shrinker(struct f2fs_sb_info *sbi) { + f2fs_shrink_extent_tree(sbi, __count_extent_cache(sbi)); + spin_lock(&f2fs_list_lock); list_del(&sbi->s_list); spin_unlock(&f2fs_list_lock); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 9252022..0083b85 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -422,7 +422,6 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb) atomic_set(&fi->dirty_pages, 0); fi->i_current_depth = 1; fi->i_advise = 0; - rwlock_init(&fi->ext_lock); init_rwsem(&fi->i_sem); INIT_RADIX_TREE(&fi->inmem_root, GFP_NOFS); INIT_LIST_HEAD(&fi->inmem_pages); @@ -453,12 +452,17 @@ static int f2fs_drop_inode(struct inode *inode) */ if (!inode_unhashed(inode) && inode->i_state & I_SYNC) { if (!inode->i_nlink && !is_bad_inode(inode)) { + /* to avoid evict_inode call simultaneously */ + atomic_inc(&inode->i_count); spin_unlock(&inode->i_lock); /* some remained atomic pages should discarded */ if (f2fs_is_atomic_file(inode)) commit_inmem_pages(inode, true); + /* should remain fi->extent_tree for writepage */ + f2fs_destroy_extent_node(inode); + sb_start_intwrite(inode->i_sb); i_size_write(inode, 0); @@ -473,6 +477,7 @@ static int f2fs_drop_inode(struct inode *inode) F2FS_I(inode)->i_crypt_info); #endif spin_lock(&inode->i_lock); + atomic_dec(&inode->i_count); } return 0; } @@ -721,6 +726,7 @@ static void default_options(struct f2fs_sb_info *sbi) set_opt(sbi, BG_GC); set_opt(sbi, INLINE_DATA); + set_opt(sbi, EXTENT_CACHE); #ifdef CONFIG_F2FS_FS_XATTR set_opt(sbi, XATTR_USER); |