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author | Li Hong <lihong.hi@gmail.com> | 2010-04-02 17:36:34 +0800 |
---|---|---|
committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-05-10 11:32:29 +0900 |
commit | f905440f5edfa70a07e64bdbc973cbdd55dd001d (patch) | |
tree | 83f27e8f4ebd473c00e758bb0a52a4949b342a9a | |
parent | 0d9cc2332df24d3e81060c782b2ecb87c28443f9 (diff) | |
download | op-kernel-dev-f905440f5edfa70a07e64bdbc973cbdd55dd001d.zip op-kernel-dev-f905440f5edfa70a07e64bdbc973cbdd55dd001d.tar.gz |
nilfs2: Combine nilfs_btree_alloc_path() and nilfs_btree_init_path()
nilfs_btree_alloc_path() and nilfs_btree_init_path() are bound into each other
tightly. Make them into one procedure to clearify the logic and avoid some
misusages.
Signed-off-by: Li Hong <lihong.hi@gmail.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
-rw-r--r-- | fs/nilfs2/btree.c | 39 |
1 files changed, 17 insertions, 22 deletions
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c index 76c38e3..f479849 100644 --- a/fs/nilfs2/btree.c +++ b/fs/nilfs2/btree.c @@ -71,23 +71,16 @@ void nilfs_btree_path_cache_destroy(void) kmem_cache_destroy(nilfs_btree_path_cache); } -static inline struct nilfs_btree_path *nilfs_btree_alloc_path(void) +static struct nilfs_btree_path *nilfs_btree_alloc_path(void) { - return kmem_cache_alloc(nilfs_btree_path_cache, GFP_NOFS); -} - -static inline void nilfs_btree_free_path(struct nilfs_btree_path *path) -{ - kmem_cache_free(nilfs_btree_path_cache, path); -} + struct nilfs_btree_path *path; + int level = NILFS_BTREE_LEVEL_DATA; -static void nilfs_btree_init_path(struct nilfs_btree_path *path) -{ - int level; + path = kmem_cache_alloc(nilfs_btree_path_cache, GFP_NOFS); + if (path == NULL) + goto out; - for (level = NILFS_BTREE_LEVEL_DATA; - level < NILFS_BTREE_LEVEL_MAX; - level++) { + for (; level < NILFS_BTREE_LEVEL_MAX; level++) { path[level].bp_bh = NULL; path[level].bp_sib_bh = NULL; path[level].bp_index = 0; @@ -95,6 +88,14 @@ static void nilfs_btree_init_path(struct nilfs_btree_path *path) path[level].bp_newreq.bpr_ptr = NILFS_BMAP_INVALID_PTR; path[level].bp_op = NULL; } + +out: + return path; +} + +static inline void nilfs_btree_free_path(struct nilfs_btree_path *path) +{ + kmem_cache_free(nilfs_btree_path_cache, path); } static void nilfs_btree_release_path(struct nilfs_btree_path *path) @@ -566,7 +567,6 @@ static int nilfs_btree_lookup(const struct nilfs_bmap *bmap, path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level); @@ -594,7 +594,7 @@ static int nilfs_btree_lookup_contig(const struct nilfs_bmap *bmap, path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); + ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level); if (ret < 0) goto out; @@ -1123,7 +1123,6 @@ static int nilfs_btree_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr) path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); ret = nilfs_btree_do_lookup(btree, path, key, NULL, NILFS_BTREE_LEVEL_NODE_MIN); @@ -1456,7 +1455,7 @@ static int nilfs_btree_delete(struct nilfs_bmap *bmap, __u64 key) path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); + ret = nilfs_btree_do_lookup(btree, path, key, NULL, NILFS_BTREE_LEVEL_NODE_MIN); if (ret < 0) @@ -1488,7 +1487,6 @@ static int nilfs_btree_last_key(const struct nilfs_bmap *bmap, __u64 *keyp) path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); ret = nilfs_btree_do_lookup_last(btree, path, keyp, NULL); @@ -1923,7 +1921,6 @@ static int nilfs_btree_propagate(const struct nilfs_bmap *bmap, path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); if (buffer_nilfs_node(bh)) { node = (struct nilfs_btree_node *)bh->b_data; @@ -2108,7 +2105,6 @@ static int nilfs_btree_assign(struct nilfs_bmap *bmap, path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); if (buffer_nilfs_node(*bh)) { node = (struct nilfs_btree_node *)(*bh)->b_data; @@ -2175,7 +2171,6 @@ static int nilfs_btree_mark(struct nilfs_bmap *bmap, __u64 key, int level) path = nilfs_btree_alloc_path(); if (path == NULL) return -ENOMEM; - nilfs_btree_init_path(path); ret = nilfs_btree_do_lookup(btree, path, key, &ptr, level + 1); if (ret < 0) { |