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authorHC <[email protected]>2014-05-14 20:58:11 -0400
committerBrian Behlendorf <[email protected]>2014-05-19 13:30:48 -0700
commitf9a1ac4d59c2a7b0d0065eccd1d68fcc32541f5b (patch)
treebd741740ce725fe8b53f1be1b567bfe95d1c7f61 /module
parent83021b47c2870c0ba948cbcfe08f41bd7730f5fb (diff)
Honor zfs_nocacheflush for file vdevs
For consistency with disk vdevs honor the zfs_nocacheflush tunable. This setting is available primarily for debugging and performance analysis. Signed-off-by: HC <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2336
Diffstat (limited to 'module')
-rw-r--r--module/zfs/vdev_file.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/module/zfs/vdev_file.c b/module/zfs/vdev_file.c
index 330580224..8059cdea4 100644
--- a/module/zfs/vdev_file.c
+++ b/module/zfs/vdev_file.c
@@ -176,6 +176,10 @@ vdev_file_io_start(zio_t *zio)
switch (zio->io_cmd) {
case DKIOCFLUSHWRITECACHE:
+
+ if (zfs_nocacheflush)
+ break;
+
zio->io_error = VOP_FSYNC(vf->vf_vnode, FSYNC | FDSYNC,
kcred, NULL);
break;