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(parent: 0f640dc) | patch
dm: fix write same requests counting
authorAlasdair G Kergon <agk@redhat.com>
Thu, 31 Jan 2013 14:23:36 +0000 (14:23 +0000)
committerAlasdair G Kergon <agk@redhat.com>
Thu, 31 Jan 2013 14:23:36 +0000 (14:23 +0000)
commitfe7af2d3babefabd96a39e8b0d58ede88f3c7993
tree43f3facbed2274c5cec7df6ef2fc9ecdfa527f4ctree | snapshot
parent0f640dca08330dfc7820d610578e5935b5e654b2commit | diff
dm: fix write same requests counting

When processing write same requests, fix dm to send the configured
number of WRITE SAME requests to the target rather than the number of
discards, which is not always the same.

Device-mapper WRITE SAME support was introduced by commit
23508a96cd2e857d57044a2ed7d305f2d9daf441 ("dm: add WRITE SAME support").

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm.c diff | blob | history
Domain: System / Kernel;