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| author | Chao Yu <chao2.yu@samsung.com> | 2015-04-30 18:35:50 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-05-28 15:41:41 -0700 |
| commit | d5b692b786e1aea68d2c6737dd0abeebc1dad619 (patch) | |
| tree | 994e30276ea39863112b4c47b8381344af882f4e /fs/f2fs/node.c | |
| parent | 402f721d2fa84cae38a403873fb4efdbbca06aff (diff) | |
| download | op-kernel-dev-d5b692b786e1aea68d2c6737dd0abeebc1dad619.zip op-kernel-dev-d5b692b786e1aea68d2c6737dd0abeebc1dad619.tar.gz | |
f2fs: do not re-lookup nat cache with same nid
In set_node_addr, we try to lookup cached nat entry of inode and then
set flag in it.
But previously in this function, we have already grabbed nat entry with
current node id, if the node id is the same as the one of inode, we
do not need to lookup it in cache again.
So this patch adds condition judgment for reducing unneeded lookup.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 62982e6..7717256 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -315,7 +315,8 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, __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 (ni->nid != ni->ino) + e = __lookup_nat_cache(nm_i, ni->ino); if (e) { if (fsync_done && ni->nid == ni->ino) set_nat_flag(e, HAS_FSYNCED_INODE, true); |
