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author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-04-25 12:47:50 +0200 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2008-04-29 09:50:34 +0200 |
commit | 68154e90c9d1492d570671ae181d9a8f8530da55 (patch) | |
tree | 4b4e9cfbaa587a576e7e52284c53ef99cf69ac4d /usr | |
parent | 657e93be356f51888f56a58d2b374caefbf2fe86 (diff) | |
download | linux-stable-68154e90c9d1492d570671ae181d9a8f8530da55.tar.gz linux-stable-68154e90c9d1492d570671ae181d9a8f8530da55.tar.bz2 linux-stable-68154e90c9d1492d570671ae181d9a8f8530da55.zip |
block: add dma alignment and padding support to blk_rq_map_kern
This patch adds bio_copy_kern similar to
bio_copy_user. blk_rq_map_kern uses bio_copy_kern instead of
bio_map_kern if necessary.
bio_copy_kern uses temporary pages and the bi_end_io callback frees
these pages. bio_copy_kern saves the original kernel buffer at
bio->bi_private it doesn't use something like struct bio_map_data to
store the information about the caller.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions