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| author | Tejun Heo <tj@kernel.org> | 2011-01-13 19:59:58 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2011-01-13 19:59:58 +0000 |
| commit | 9c4376de98719d2768dd919553843de34bb094a6 (patch) | |
| tree | c20b10e9018bb51803c535a38a04ee8b12b6d98a /drivers/md/dm-raid1.c | |
| parent | 4d4d66ab5322fa9b0f51842a76139387a40e1ce9 (diff) | |
| download | op-kernel-dev-9c4376de98719d2768dd919553843de34bb094a6.zip op-kernel-dev-9c4376de98719d2768dd919553843de34bb094a6.tar.gz | |
dm: use non reentrant workqueues if equivalent
kmirrord_wq, kcopyd_work and md->wq are created per dm instance and
serve only a single work item from the dm instance, so non-reentrant
workqueues would provide the same ordering guarantees as ordered ones
while allowing CPU affinity and use of the workqueues for other
purposes. Switch them to non-reentrant workqueues.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-raid1.c')
| -rw-r--r-- | drivers/md/dm-raid1.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 3991743..dee3267 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -1085,7 +1085,8 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv) ti->num_flush_requests = 1; ti->num_discard_requests = 1; - ms->kmirrord_wq = alloc_ordered_workqueue("kmirrord", WQ_MEM_RECLAIM); + ms->kmirrord_wq = alloc_workqueue("kmirrord", + WQ_NON_REENTRANT | WQ_MEM_RECLAIM, 0); if (!ms->kmirrord_wq) { DMERR("couldn't start kmirrord"); r = -ENOMEM; @@ -1414,7 +1415,7 @@ static int mirror_iterate_devices(struct dm_target *ti, static struct target_type mirror_target = { .name = "mirror", - .version = {1, 12, 0}, + .version = {1, 12, 1}, .module = THIS_MODULE, .ctr = mirror_ctr, .dtr = mirror_dtr, |
