f2fs: fix to avoid call kvfree under spinlock

vfree() don't wish to be called from interrupt context, move it
out of spin_lock_irqsave() coverage.

Change-Id: I4f4867b72783accbbb869e13c42ab3a4ebcb081a
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
1 file changed