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| author | Chuck Lever <chuck.lever@oracle.com> | 2022-11-03 16:22:48 -0400 |
|---|---|---|
| committer | Chuck Lever <cel@kernel.org> | 2022-12-10 11:00:04 -0500 |
| commit | d7064eaf688cfe454c50db9f59298463d80d403c (patch) | |
| tree | 7029852beb52f4fed075104f4f8ab2ec9e99744d /fs/nfsd/filecache.c | |
| parent | 3ed157d0d73f15b6574424dd068ca5f5a8560562 (diff) | |
| download | linux-d7064eaf688cfe454c50db9f59298463d80d403c.tar.bz2 | |
NFSD: Add an nfsd_file_fsync tracepoint
Add a tracepoint to capture the number of filecache-triggered fsync
calls and which files needed it. Also, record when an fsync triggers
a write verifier reset.
Examples:
<...>-97 [007] 262.505611: nfsd_file_free: inode=0xffff888171e08140 ref=0 flags=GC may=WRITE nf_file=0xffff8881373d2400
<...>-97 [007] 262.505612: nfsd_file_fsync: inode=0xffff888171e08140 ref=0 flags=GC may=WRITE nf_file=0xffff8881373d2400 ret=0
<...>-97 [007] 262.505623: nfsd_file_free: inode=0xffff888171e08dc0 ref=0 flags=GC may=WRITE nf_file=0xffff8881373d1e00
<...>-97 [007] 262.505624: nfsd_file_fsync: inode=0xffff888171e08dc0 ref=0 flags=GC may=WRITE nf_file=0xffff8881373d1e00 ret=0
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Diffstat (limited to 'fs/nfsd/filecache.c')
| -rw-r--r-- | fs/nfsd/filecache.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index da7c9cb12403..1998b4d5f692 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -336,10 +336,13 @@ static void nfsd_file_fsync(struct nfsd_file *nf) { struct file *file = nf->nf_file; + int ret; if (!file || !(file->f_mode & FMODE_WRITE)) return; - if (vfs_fsync(file, 1) != 0) + ret = vfs_fsync(file, 1); + trace_nfsd_file_fsync(nf, ret); + if (ret) nfsd_reset_write_verifier(net_generic(nf->nf_net, nfsd_net_id)); } |