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dm thin: set flush_supported 

The thin provisioning target commits internal metadata on flush.  So it
should receive flushes regardless of whether the underlying devices
support them.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Joe Thornber 2012-07-27 15:08:07 +01:00 committed by Alasdair G Kergon
parent 0e9c24ed74
commit 16ad3d103d
1 changed files with 1 additions and 0 deletions
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1
drivers/md/dm-thin.c
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@ -2652,6 +2652,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
goto bad_thin_open; goto bad_thin_open;
ti->num_flush_requests = 1; ti->num_flush_requests = 1;
ti->flush_supported = true;
/* In case the pool supports discards, pass them on. */ /* In case the pool supports discards, pass them on. */
if (tc->pool->pf.discard_enabled) { if (tc->pool->pf.discard_enabled) {