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authorMikulas Patocka <mpatocka@redhat.com>2010-08-12 04:14:26 +0100
committerAlasdair G Kergon <agk@redhat.com>2010-08-12 04:14:26 +0100
commit7b76ec11fec40203836b488496d2df082d5b2022 (patch)
tree8b3c75295945f0533206c699139e55a30bcd426e /drivers/md/dm-mpath.c
parenta79245b3e5669dc203fec63644d988c451fe55d5 (diff)
dm stripe: support discards
The DM core will submit a discard bio to the stripe target for each stripe in a striped DM device. The stripe target will determine stripe-specific portions of the supplied bio to be remapped into individual (at most 'num_discard_requests' extents). If a given stripe-specific discard bio doesn't touch a particular stripe the bio will be dropped. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-mpath.c')
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