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| author | J. Bruce Fields <bfields@redhat.com> | 2012-10-27 00:04:08 +0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-11-08 04:31:33 +0400 |
| commit | fae5096ad217db2e3368e980c1d86223f786856b (patch) | |
| tree | efe6c90695ee97eb12364ff7756821a67ccc9f7a /fs/nfsd/vfs.c | |
| parent | 7fa10cd12df3ec0873a5db0d8dc8e978423b87dc (diff) | |
| download | linux-fae5096ad217db2e3368e980c1d86223f786856b.tar.xz | |
nfsd: assume writeable exportabled filesystems have f_sync
I don't really see how you could claim to support nfsd and not support
fsync somehow.
And in practice a quick look through the exportable filesystems suggests
the only ones without an ->fsync are read-only (efs, isofs, squashfs) or
in-memory (shmem).
Also, performing a write and then returning an error if the sync fails
(as we would do here in the wgather case) seems unhelpful to clients.
Also remove an incorrect comment.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/vfs.c')
| -rw-r--r-- | fs/nfsd/vfs.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index c120b48ec305..ed3eb59b607e 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1020,21 +1020,8 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, inode = dentry->d_inode; exp = fhp->fh_export; - /* - * Request sync writes if - * - the sync export option has been set, or - * - the client requested O_SYNC behavior (NFSv3 feature). - * - The file system doesn't support fsync(). - * When NFSv2 gathered writes have been configured for this volume, - * flushing the data to disk is handled separately below. - */ use_wgather = (rqstp->rq_vers == 2) && EX_WGATHER(exp); - if (!file->f_op->fsync) {/* COMMIT3 cannot work */ - stable = 2; - *stablep = 2; /* FILE_SYNC */ - } - if (!EX_ISSYNC(exp)) stable = 0; if (stable && !use_wgather) { |