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| author | Mikulas Patocka <mpatocka@redhat.com> | 2011-05-29 13:02:58 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2011-05-29 13:02:58 +0100 |
| commit | a705a34a565a5445bf731bd8006d51ea4d2b4236 (patch) | |
| tree | 84d4761ff62398110a44e630085bc43a97bae805 | |
| parent | 6f13f6fba76edc7d0e7580c5deee829d59a41b2f (diff) | |
| download | op-kernel-dev-a705a34a565a5445bf731bd8006d51ea4d2b4236.zip op-kernel-dev-a705a34a565a5445bf731bd8006d51ea4d2b4236.tar.gz | |
dm kcopyd: avoid pointless job splitting
Don't split SUB_JOB_SIZE jobs
If the job size equals SUB_JOB_SIZE, there is no point in splitting it.
Splitting it just unnecessarily wastes time, because the split job size
is SUB_JOB_SIZE too.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| -rw-r--r-- | drivers/md/dm-kcopyd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c index 1bb73a1..505b6f5 100644 --- a/drivers/md/dm-kcopyd.c +++ b/drivers/md/dm-kcopyd.c @@ -578,7 +578,7 @@ int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, job->fn = fn; job->context = context; - if (job->source.count < SUB_JOB_SIZE) + if (job->source.count <= SUB_JOB_SIZE) dispatch_job(job); else { |
