summaryrefslogtreecommitdiffstats
path: root/block
diff options
context:
space:
mode:
authorVasily Averin <vvs@sw.ru>2007-10-31 08:33:24 +0100
committerJens Axboe <axboe@carl.home.kernel.dk>2007-11-02 08:47:25 +0100
commit5ec140e600b7d6624c657f008833f0e71bd5ef48 (patch)
tree44691c88d767418a57797e84253a4633825c0c98 /block
parent6f5d8aa6382eef2b26032c88656270bdae7f0c42 (diff)
downloadop-kernel-dev-5ec140e600b7d6624c657f008833f0e71bd5ef48.zip
op-kernel-dev-5ec140e600b7d6624c657f008833f0e71bd5ef48.tar.gz
dm: bounce_pfn limit added
Device mapper uses its own bounce_pfn that may differ from one on underlying device. In that way dm can build incorrect requests that contain sg elements greater than underlying device is able to handle. This is the cause of slab corruption in i2o layer, occurred on i386 arch when very long direct IO requests are addressed to dm-over-i2o device. Signed-off-by: Vasily Averin <vvs@sw.ru> Cc: <stable@kernel.org> Cc: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud