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Qu Wenruo authored
Parameter of trace_btrfs_work_queued() can be freed in its workqueue. So no one use use that pointer after queue_work(). Fix the user-after-free bug by move the trace line before queue_work(). Reported-by:
Dave Jones <davej@codemonkey.org.uk> Signed-off-by:
Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
Chris Mason <clm@fb.com>
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