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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-02-12 08:17:00 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-02-19 21:21:06 -0500 |
| commit | 9a7fe9e8900baad5f6643000ea48b91aee895165 (patch) | |
| tree | 2e83b086f8824df9d4ebe4d8bcd502a1c4aba1da /fs/nfs | |
| parent | 27999f253010bd64fd63dc80c99f8e926e2b110d (diff) | |
| download | linux-9a7fe9e8900baad5f6643000ea48b91aee895165.tar.gz linux-9a7fe9e8900baad5f6643000ea48b91aee895165.tar.bz2 linux-9a7fe9e8900baad5f6643000ea48b91aee895165.zip | |
NFSv4.1: Minor optimisation in get_layout_by_fh_locked()
If the filehandles match, but the igrab() fails, or the layout is
freed before we can get it, then just return NULL.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/callback_proc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 570c8a1d2f3d..41db5258e7a7 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -127,13 +127,13 @@ static struct pnfs_layout_hdr * get_layout_by_fh_locked(struct nfs_client *clp, continue; ino = igrab(lo->plh_inode); if (!ino) - continue; + break; spin_lock(&ino->i_lock); /* Is this layout in the process of being freed? */ if (NFS_I(ino)->layout != lo) { spin_unlock(&ino->i_lock); iput(ino); - continue; + break; } pnfs_get_layout_hdr(lo); spin_unlock(&ino->i_lock); |