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| author | Brian Behlendorf <[email protected]> | 2011-03-10 13:34:17 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-03-10 13:34:17 -0800 |
| commit | 04516a45b27144cf42bec005ef2de6d505d236a5 (patch) | |
| tree | 230d0b4e097ca024bafeb6e659b401dd47e5d9ef /module/zfs/vdev_disk.c | |
| parent | a6cba65ccae5a5458f9ab4ac11020716d30ea7f7 (diff) | |
Don't set I/O Scheduler for Partitions
ZFS should only change the i/o scheduler for a disk when it has
ownership of the whole disk. This is basically the same logic as
adjusting the write cache behavior on a disk. This change updates
the vdev disk code to skip partitions when setting the i/o scheduler.
Closes #152
Diffstat (limited to 'module/zfs/vdev_disk.c')
| -rw-r--r-- | module/zfs/vdev_disk.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/module/zfs/vdev_disk.c b/module/zfs/vdev_disk.c index 69bc53b4b..ec627a9c4 100644 --- a/module/zfs/vdev_disk.c +++ b/module/zfs/vdev_disk.c @@ -131,6 +131,10 @@ vdev_elevator_switch(vdev_t *v, char *elevator) char *envp[] = { NULL }; int count = 0, error; + /* Skip devices which are not whole disks (partitions) */ + if (!v->vdev_wholedisk) + return (0); + /* Skip devices without schedulers (loop, ram, dm, etc) */ if (!q->elevator || !blk_queue_stackable(q)) return (0); |