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(parent: a115413) | patch
block: check for proper length of iov entries earlier in blk_rq_map_user_iov()
authorXiaotian Feng <dfeng@redhat.com>
Mon, 29 Nov 2010 09:03:55 +0000 (10:03 +0100)
committerJens Axboe <jaxboe@fusionio.com>
Mon, 29 Nov 2010 09:04:50 +0000 (10:04 +0100)
commit5478755616ae2ef1ce144dded589b62b2a50d575
treeb1dffb15dba1a924bba289beb78ea23f34782c9ctree | snapshot (tar.gz zip)
parenta115413de13ae6beb0cbfc198afe385a261ab284commit | diff
block: check for proper length of iov entries earlier in blk_rq_map_user_iov()

commit 9284bcf checks for proper length of iov entries in
blk_rq_map_user_iov(). But if the map is unaligned, kernel
will break out the loop without checking for the proper length.
So we need to check the proper length before the unalign check.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
block/blk-map.c diff | blob | blame | history