md/r5cache: call mddev_lock/unlock() in r5c_journal_mode_show

Browse source

In r5c_journal_mode_show(), it is necessary to call mddev_lock()
before accessing conf and conf->log. Otherwise, the conf->log
may change (and become NULL).

Signed-off-by: Song Liu <songliubraving@fb.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>

...

This commit is contained in:

Song Liu 2017-08-08 22:56:52 -07:00 • committed by Shaohua Li

parent 26e13043b7

commit a72cbf83b0

1 changed files with 10 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

12

drivers/md/raid5-cache.c

View file