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authorGu Zheng <guz.fnst@cn.fujitsu.com>2013-04-29 11:55:52 -0700
committerJens Axboe <axboe@kernel.dk>2013-04-29 21:24:30 +0200
commit6f8f5c260af67fed49fe14efc3ad1f69654c260e (patch)
tree7394a785edeeb5caec8bf065f5e02b44c9878d4e /block/partitions
parent871dd9286e25330c8a581e5dacfa8b1dfe1dd641 (diff)
fs/block_dev.c: fix iov_shorten() criteria in blkdev_aio_read()
blkdev_aio_read() test 'size' to see if it is equal or greater than the target count we request(iocb->ki_left). If so there is no need to call iov_shorten() to reduce number of segments and the iovec's length. So the judgement should be changed to 'if (size < iocb->ki_left)' instead. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/partitions')
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