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(parent: c2e95c6) | patch
block: Add bio_list_peek()
authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Wed, 10 Jun 2009 04:38:40 +0000 (04:38 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Mon, 15 Jun 2009 06:47:21 +0000 (16:47 +1000)
commit13685a1654b65357fb34066a98ef40445f7820fc
tree89a18aa144873b1224618fa399dd6654751ed2b6tree | snapshot
parentc2e95c6d7a9b9d8f023c3639edbb1da65ccd15accommit | diff
block: Add bio_list_peek()

Introduce bio_list_peek(), to obtain a pointer to the first bio on the bio_list
without actually removing it from the list. This is needed when you want to
serialize based on the list being empty or not.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
include/linux/bio.h diff | blob | history
Domain: System / Kernel;