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| author | Joe Thornber <ejt@redhat.com> | 2015-05-15 15:20:09 +0100 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-05-29 14:19:04 -0400 |
| commit | 20f6814b94fff4a98b123f1c2b691e936be27aaf (patch) | |
| tree | 1845743b06f1a2e999a37c5ae98ba6649753a95a /drivers/md/dm-cache-policy-cleaner.c | |
| parent | 066dbaa386c751164c39ab025e5e8803b4a4d691 (diff) | |
| download | op-kernel-dev-20f6814b94fff4a98b123f1c2b691e936be27aaf.zip op-kernel-dev-20f6814b94fff4a98b123f1c2b691e936be27aaf.tar.gz | |
dm cache: pass a new 'critical' flag to the policies when requesting writeback work
We only allow non critical writeback if the origin is idle. It is up
to the policy to decide what writeback work is critical.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-cache-policy-cleaner.c')
| -rw-r--r-- | drivers/md/dm-cache-policy-cleaner.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-cache-policy-cleaner.c b/drivers/md/dm-cache-policy-cleaner.c index 004e463..240c9f0 100644 --- a/drivers/md/dm-cache-policy-cleaner.c +++ b/drivers/md/dm-cache-policy-cleaner.c @@ -359,7 +359,8 @@ static struct wb_cache_entry *get_next_dirty_entry(struct policy *p) static int wb_writeback_work(struct dm_cache_policy *pe, dm_oblock_t *oblock, - dm_cblock_t *cblock) + dm_cblock_t *cblock, + bool critical_only) { int r = -ENOENT; struct policy *p = to_policy(pe); |
