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(parent: 9966b21) | 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)
commit7d1bb4ff8226842effac1cdb539dd8f0530134df
tree43f3facbed2274c5cec7df6ef2fc9ecdfa527f4ctree | snapshot
parent9966b21039f7127df73d3bde9efd7ce9bea0f4d9commit | 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
6fedcb469b70e0e2a5f18cc5f84c0addc56298f8 ("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
Linux Kernel Source Tree.