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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/ufs | |
| 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/ufs')
| -rw-r--r-- | sys/ufs/ffs/ffs_vfsops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/ufs/ffs/ffs_vfsops.c b/sys/ufs/ffs/ffs_vfsops.c index 6e2e556..88f952f 100644 --- a/sys/ufs/ffs/ffs_vfsops.c +++ b/sys/ufs/ffs/ffs_vfsops.c @@ -1055,7 +1055,8 @@ ffs_mountfs(devvp, mp, td) */ MNT_ILOCK(mp); mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_EXTENDED_SHARED | - MNTK_NO_IOPF | MNTK_UNMAPPED_BUFS | MNTK_SUSPENDABLE; + MNTK_NO_IOPF | MNTK_UNMAPPED_BUFS | MNTK_SUSPENDABLE | + MNTK_USES_BCACHE; MNT_IUNLOCK(mp); #ifdef UFS_EXTATTR #ifdef UFS_EXTATTR_AUTOSTART |
