From: Nikanth Karthikesan <knikanth@suse.de>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/7] Document that bio_alloc with __GFP_WAIT cannot fail
Date: Wed, 15 Apr 2009 10:35:04 +0530 [thread overview]
Message-ID: <200904151035.04657.knikanth@suse.de> (raw)
Document that bio_alloc with __GFP_WAIT cannot fail.
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
---
diff --git a/fs/bio.c b/fs/bio.c
index e0c9e54..5b5dfdd 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -348,6 +348,10 @@ err:
return NULL;
}
+/*
+ * This will not fail as long as __GFP_WAIT is specified
+ * in the gfp_mask, as mempool backing is used.
+ */
struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs)
{
struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
reply other threads:[~2009-04-15 5:10 UTC|newest]
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