Hou Tao 3288666c72 fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work() ... fscache_create_volume_work() uses wake_up_bit() to wake up the processes which are waiting for the completion of volume creation. According to comments in wake_up_bit() and waitqueue_active(), an extra smp_mb() is needed to guarantee the memory order between FSCACHE_VOLUME_CREATING flag and waitqueue_active() before invoking wake_up_bit(). Fixing it by using clear_and_wake_up_bit() to add the missing memory barrier. Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com> Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20230113115211.2895845-3-houtao@huaweicloud.com/ # v3		2023-01-30 12:51:54 +00:00
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cache.c
cookie.c
internal.h
io.c
Kconfig
main.c
Makefile
proc.c
stats.c
volume.c	fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()	2023-01-30 12:51:54 +00:00