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| author | Stefan Bader <stefan.bader@canonical.com> | 2015-11-30 02:44:49 (GMT) |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-12-31 03:23:14 (GMT) |
| commit | 8d16ce540c94c9d366eb36fc91b7154d92d6397b (patch) | |
| tree | 0fae348076b0dcd745a2ee2cadaba965bd0587e4 /drivers/md/dm-sysfs.c | |
| parent | d7076f21629f8f329bca4a44dc408d94670f49e2 (diff) | |
| download | linux-8d16ce540c94c9d366eb36fc91b7154d92d6397b.tar.xz | |
bcache: prevent crash on changing writeback_running
Added a safeguard in the shutdown case. At least while not being
attached it is also possible to trigger a kernel bug by writing into
writeback_running. This change adds the same check before trying to
wake up the thread for that case.
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/dm-sysfs.c')
0 files changed, 0 insertions, 0 deletions