| commit | 13685a1654b65357fb34066a98ef40445f7820fc | [log] [tgz] |
|---|---|---|
| author | Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> | Wed Jun 10 04:38:40 2009 +0000 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Mon Jun 15 16:47:21 2009 +1000 |
| tree | 89a18aa144873b1224618fa399dd6654751ed2b6 | |
| parent | c2e95c6d7a9b9d8f023c3639edbb1da65ccd15ac [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>