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(parent: e1441b9) | patch
dm crypt: use cond_resched
authorMilan Broz <mbroz@redhat.com>
Wed, 2 Jul 2008 08:34:28 +0000 (09:34 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Wed, 2 Jul 2008 08:34:28 +0000 (09:34 +0100)
commitc7f1b2044191a82e7f0a1a674751ed582289e2e0
treec200c19aca2faf22ad5c8636a3a783f8e26ef289tree | snapshot
parente1441b9a41c33aa9236008a7cfe49a8e723fb397commit | diff
dm crypt: use cond_resched

Add cond_resched() to prevent monopolising CPU when processing large bios.

dm-crypt processes encryption of bios in sector units.  If the bio request
is big it can spend a long time in the encryption call.

Signed-off-by: Milan Broz <mbroz@redhat.com>
Tested-by: Yan Li <elliot.li.tech@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm-crypt.c diff | blob | history
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