Commit c7f1b204 authored by Milan Broz's avatar Milan Broz Committed by Alasdair G Kergon
Browse files

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: default avatarMilan Broz <mbroz@redhat.com>
Tested-by: default avatarYan Li <elliot.li.tech@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent e1441b9a
......@@ -432,6 +432,7 @@ static int crypt_convert(struct crypt_config *cc,
case 0:
atomic_dec(&ctx->pending);
ctx->sector++;
cond_resched();
continue;
/* error */
......
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