]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: a9876d9) | patch
dm round robin: do not use this_cpu_ptr() without having preemption disabled
authorMike Snitzer <snitzer@redhat.com>
Fri, 5 Aug 2016 16:29:06 +0000 (12:29 -0400)
committerMike Snitzer <snitzer@redhat.com>
Mon, 15 Aug 2016 13:23:14 +0000 (09:23 -0400)
commit777ba5bb1aa142141503b18e1e82288fb142c555
tree248f0398c49bbf71371d0a9b1eb2151b53290993tree | snapshot
parenta9876d9535a9c467690173ddad00ced906e1e077commit | diff
dm round robin: do not use this_cpu_ptr() without having preemption disabled

Use local_irq_save() to disable preemption before calling
this_cpu_ptr().

Reported-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Fixes: a8b6840105d5 ("dm round robin: use percpu 'repeat_count' and 'current_path'")
Cc: stable@vger.kernel.org # 4.6+
Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm-round-robin.c diff | blob | history
Linux Kernel Source Tree.