tree 1a01acbf9d606c392f85449fe6d6af06154a9346
parent d39c9400ae0d60aaaf534b1ad860a9bc1413d8af
author Jens Axboe <jens.axboe@oracle.com> 1168600826 +0100
committer Linus Torvalds <torvalds@woody.osdl.org> 1168627609 -0800

[PATCH] blktrace: only add a bounce trace when we really bounce

Currently we issue a bounce trace when __blk_queue_bounce() is called,
but that merely means that the device has a lower dma mask than the
higher pages in the system. The bio itself may still be lower pages. So
move the bounce trace into __blk_queue_bounce(), when we know there will
actually be page bouncing.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>