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| author | Jens Axboe <jaxboe@fusionio.com> | 2011-05-26 15:01:38 -0400 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-05-26 15:01:38 -0400 |
| commit | f4fa3424c66255ba1e07b26becfc3d6cab0fdf65 (patch) | |
| tree | 7c16496c0f87bc4f1236c08e264065c776baec73 /Documentation/preempt-locking.txt | |
| parent | 4db70f73e56961b9bcdfd0c36c62847a18b7dbb5 (diff) | |
block: fix oops on !disk->queue and sysfs discard alignment display
Eric Dumazet reports:
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At boot, I have a crash in part_discard_alignment_show+0x1b/0x50
CR2 : 000006ac
fault in : mov 0x2c(%rcx),%edx
I suspect commit 23ceb5b7719e9276d4 (block: Remove extra
discard_alignment from hd_struct) being in fault
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Not quite known how ->queue can be NULL while the sysfs entry
exists, but lets play it safe and check for a NULL queue.
The rest of the sysfs show strategies in check.c do not dereference
disk->queue.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'Documentation/preempt-locking.txt')
0 files changed, 0 insertions, 0 deletions