block: check virt boundary in bio_will_gap()

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commit e0af29171a upstream.

In the following patch, the way for figuring out
the last bvec will be changed with a bit cost introduced,
so return immediately if the queue doesn't have virt
boundary limit. Actually most of devices have not
this limit.

Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Ming Lei 2016-02-26 23:40:51 +08:00 • committed by Greg Kroah-Hartman

parent 7f74146b5f

commit 0528bdbc44

1 changed files with 11 additions and 5 deletions

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include/linux/blkdev.h

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