diff options
| author | Shehjar Tikoo <shehjart@gluster.com> | 2010-05-18 01:37:42 +0000 |
|---|---|---|
| committer | Anand V. Avati <avati@dev.gluster.com> | 2010-05-21 00:32:04 -0700 |
| commit | c705b679fbe41aa9ac4486ebf46d3b2ae95d1628 (patch) | |
| tree | a02d7314bacd0b720fe4b700a000153928d0df42 /xlators/nfs/server/src/nfs3.h | |
| parent | 3b88b2dfbc1a33a6967cfedf63a615ee1e81e49d (diff) | |
nfs: Introduce trusted-write and trusted-sync options
Introduces two new options:
1. nfs3.*.trusted-write: Forces UNSTABLE writes to return STABLE to NFS
clients to prevent the clients from sending a COMMIT. STABLE writes
are still handled in a sync manner and so are COMMITs if they're sent
at all.
2. nfs3.*.trusted-sync: Forces all WRITEs and COMMITs to return STABLE
return flags to NFS clients to avoid the overhead of STABLE writes, and
COMMITs that follow UNSTABLE writes. This includes the trusted-write
functionality. In addition to the trusted-write, it also writes
STABLE writes in an UNSTABLE manner.
Both violate the NFS protocol but allow better write perf in most
configurations. Use with caution.
Signed-off-by: Shehjar Tikoo <shehjart@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 924 (Slow NFS synchronous writes)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=924
Diffstat (limited to 'xlators/nfs/server/src/nfs3.h')
| -rw-r--r-- | xlators/nfs/server/src/nfs3.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xlators/nfs/server/src/nfs3.h b/xlators/nfs/server/src/nfs3.h index bb5fbb75033..ccdad447735 100644 --- a/xlators/nfs/server/src/nfs3.h +++ b/xlators/nfs/server/src/nfs3.h @@ -84,6 +84,8 @@ struct nfs3_fd_entry { struct nfs3_export { xlator_t *subvol; int access; + int trusted_sync; + int trusted_write; }; #define GF_NFS3_DEFAULT_VOLACCESS (GF_NFS3_VOLACCESS_RW) |