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| author | Mike Snitzer <snitzer@redhat.com> | 2013-11-12 12:17:43 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2013-11-12 13:11:09 -0500 |
| commit | 7b6b2bc98c0303b7f043ad5b35906f833e56308d (patch) | |
| tree | a1c051a829ec191f4ded87b1e996a03c8c77566a /drivers/md/dm-cache-policy-mq.c | |
| parent | 65790ff919e2e07ccb4457415c11075b245d643b (diff) | |
| download | linux-7b6b2bc98c0303b7f043ad5b35906f833e56308d.tar.bz2 | |
dm cache: resolve small nits and improve Documentation
Document passthrough mode, cache shrinking, and cache invalidation.
Also, use strcasecmp() and hlist_unhashed().
Reported-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-cache-policy-mq.c')
| -rw-r--r-- | drivers/md/dm-cache-policy-mq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c index 7209fab8b8ed..416b7b752a6e 100644 --- a/drivers/md/dm-cache-policy-mq.c +++ b/drivers/md/dm-cache-policy-mq.c @@ -310,7 +310,7 @@ static void free_entry(struct entry_pool *ep, struct entry *e) static struct entry *epool_find(struct entry_pool *ep, dm_cblock_t cblock) { struct entry *e = ep->entries + from_cblock(cblock); - return e->hlist.pprev ? e : NULL; + return !hlist_unhashed(&e->hlist) ? e : NULL; } static bool epool_empty(struct entry_pool *ep) |