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authorJan Kara <jack@suse.cz>2017-08-24 11:52:21 -0400
committerTheodore Ts'o <tytso@mit.edu>2017-08-24 11:52:21 -0400
commit4f9d956d1939f97e2cb278b9615b6c683cd90e97 (patch)
treeb5dcabfa8a15252ab29d6a3bbac7040ea8ddb7df /fs/ext4
parent32aaf194201e98db4235b7b71ac62a22e2ac355f (diff)
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ext4: do not unnecessarily allocate buffer in recently_deleted()
In recently_deleted() function we want to check whether inode is still cached in buffer cache. Use sb_find_get_block() for that instead of sb_getblk() to avoid unnecessary allocation of bdev page and buffer heads. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/ialloc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 507bfb3344d4..0d03e73dccaf 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -707,9 +707,9 @@ static int recently_deleted(struct super_block *sb, ext4_group_t group, int ino)
if (unlikely(!gdp))
return 0;
- bh = sb_getblk(sb, ext4_inode_table(sb, gdp) +
+ bh = sb_find_get_block(sb, ext4_inode_table(sb, gdp) +
(ino / inodes_per_block));
- if (unlikely(!bh) || !buffer_uptodate(bh))
+ if (!bh || !buffer_uptodate(bh))
/*
* If the block is not in the buffer cache, then it
* must have been written out.