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Song Liu ff35f58e8f md/r5cache: move mddev_lock() out of r5c_journal_mode_set() ...

r5c_journal_mode_set() is called by r5c_journal_mode_store() and
raid_ctr() in dm-raid. We don't need mddev_lock() when calling from
raid_ctr(). This patch fixes this by moves the mddev_lock() to
r5c_journal_mode_store().

Cc: stable@vger.kernel.org (v4.13+)
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>

2017-12-01 11:27:32 -08:00

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