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| author |   Shaohua Li <shaohua.li@intel.com> | 2011-12-16 14:04:23 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2011-12-16 14:04:23 +0100 |
| commit | 6ae0516b8a50ece5d766be608a305707e0450060 (patch) | |
| tree | 90e4768d9d984d94cb45464b49b9c62b93ffba9f /block/blk-map.c | |
| parent | block: don't kick empty queue in blk_drain_queue() (diff) | |
| download | linux-dev-6ae0516b8a50ece5d766be608a305707e0450060.tar.xz linux-dev-6ae0516b8a50ece5d766be608a305707e0450060.zip | |
block, cfq: fix empty queue crash caused by request merge
All requests of a queue could be merged to other requests of other queue.
Such queue will not have request in it, but it's in service tree. This
will cause kernel oops.
I encounter a BUG_ON() in cfq_dispatch_request() with next patch, but the
issue should exist without the patch.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-map.c')
0 files changed, 0 insertions, 0 deletions