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| /linux/drivers/md/ |
| H A D | raid5-cache.c | diff a72cbf83b0cb2368568d4e78cf1687079aad4d25 Wed Aug 09 07:56:52 CEST 2017 Song Liu <songliubraving@fb.com> md/r5cache: call mddev_lock/unlock() in r5c_journal_mode_show
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>
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