md: use bio_kmalloc rather than bio_alloc when failure is acceptable.
authorNeilBrown <neilb@suse.de>
Tue, 26 Oct 2010 06:33:54 +0000 (17:33 +1100)
committerNeilBrown <neilb@suse.de>
Thu, 28 Oct 2010 06:36:06 +0000 (17:36 +1100)
commit6746557f0325a66f57d179126426e38a8ea66945
tree3b1db04c854b6ccc4752560f0d30c85e6cbbda6a
parent4e78064f42ad474ce9c31760861f7fb0cfc22532
md: use bio_kmalloc rather than bio_alloc when failure is acceptable.

bio_alloc can never fail (as it uses a mempool) but an block
indefinitely, especially if the caller is holding a reference to a
previously allocated bio.

So these to places which both handle failure and hold multiple bios
should not use bio_alloc, they should use bio_kmalloc.

Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/raid1.c
drivers/md/raid10.c