dm thin: avoid unnecessarily breaking sharing for flushes

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There's no need to break sharing, triggering a copy, for a write that has no
data (i.e. a flush).

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>

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Joe Thornber 2012-07-27 15:08:06 +01:00 • committed by Alasdair G Kergon

parent 905386f82d

commit 6004970136

1 changed files with 1 additions and 1 deletions

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drivers/md/dm-thin.c

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