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(parent: 55f2b8b) | patch
dm: introduce split_discard_requests
authorMikulas Patocka <mpatocka@redhat.com>
Fri, 27 Jul 2012 14:08:03 +0000 (15:08 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Fri, 27 Jul 2012 14:08:03 +0000 (15:08 +0100)
commit7acf0277cea0f2da89ffffcc9892bea23f618e63
tree5f5c77f9ab0750826691d53a027cdcd786771fbbtree | snapshot (tar.gz zip)
parent55f2b8bdb0c7387eb2dc645b9ecbe5d0faa6b54ecommit | diff
dm: introduce split_discard_requests

This patch introduces a new variable split_discard_requests. It can be
set by targets so that discard requests are split on max_io_len
boundaries.

When split_discard_requests is not set, discard requests are only split on
boundaries between targets, as was the case before this patch.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm.c diff | blob | blame | history
include/linux/device-mapper.h diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)