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| author |   Hannes Reinecke <hare@suse.de> | 2015-11-26 08:46:57 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2015-11-29 14:37:27 -0700 |
| commit | bf4e6b4e757488dee1b6a581f49c7ac34cd217f8 (patch) | |
| tree | 95e32c168d7478d0f541b5d19d1edf0e3d1160f1 /fs | |
| parent | lightnvm: missing nvm_lock acquire (diff) | |
| download | linux-dev-bf4e6b4e757488dee1b6a581f49c7ac34cd217f8.tar.xz linux-dev-bf4e6b4e757488dee1b6a581f49c7ac34cd217f8.zip | |
block: Always check queue limits for cloned requests
When a cloned request is retried on other queues it always needs
to be checked against the queue limits of that queue.
Otherwise the calculations for nr_phys_segments might be wrong,
leading to a crash in scsi_init_sgtable().
To clarify this the patch renames blk_rq_check_limits()
to blk_cloned_rq_check_limits() and removes the symbol
export, as the new function should only be used for
cloned requests and never exported.
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Ewan Milne <emilne@redhat.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Fixes: e2a60da74 ("block: Clean up special command handling logic")
Cc: stable@vger.kernel.org # 3.7+
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions