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| author | rmacklem <rmacklem@FreeBSD.org> | 2015-04-15 20:16:31 +0000 |
|---|---|---|
| committer | rmacklem <rmacklem@FreeBSD.org> | 2015-04-15 20:16:31 +0000 |
| commit | ad77d0b1c1c3c09a9bf76bebb397102d08ed35c6 (patch) | |
| tree | bbc578ff440927019e13de747fa3256b9df8b2d7 /sys/fs/nfsclient | |
| parent | 98c2a4bca48582a25dbb01274fd65c9b8cd74058 (diff) | |
| download | FreeBSD-src-ad77d0b1c1c3c09a9bf76bebb397102d08ed35c6.zip FreeBSD-src-ad77d0b1c1c3c09a9bf76bebb397102d08ed35c6.tar.gz | |
File systems that do not use the buffer cache (such as ZFS) must
use VOP_FSYNC() to perform the NFS server's Commit operation.
This patch adds a mnt_kern_flag called MNTK_USES_BCACHE which
is set by file systems that use the buffer cache. If this flag
is not set, the NFS server always does a VOP_FSYNC().
This should be ok for old file system modules that do not set
MNTK_USES_BCACHE, since calling VOP_FSYNC() is correct, although
it might not be optimal for file systems that use the buffer cache.
Reviewed by: kib
MFC after: 2 weeks
Diffstat (limited to 'sys/fs/nfsclient')
| -rw-r--r-- | sys/fs/nfsclient/nfs_clvfsops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/fs/nfsclient/nfs_clvfsops.c b/sys/fs/nfsclient/nfs_clvfsops.c index 9758b4c..43ca6dc 100644 --- a/sys/fs/nfsclient/nfs_clvfsops.c +++ b/sys/fs/nfsclient/nfs_clvfsops.c @@ -1198,7 +1198,8 @@ nfs_mount(struct mount *mp) out: if (!error) { MNT_ILOCK(mp); - mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_NO_IOPF; + mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_NO_IOPF | + MNTK_USES_BCACHE; MNT_IUNLOCK(mp); } return (error); |
