kernel oops when sync after rm a file at full disk

["Gong, Zhipeng" <zhipeng.gong@xxxxxxxxx>]

Reproduce steps:
     free_size=`df | grep "/" -w | awk '{print $4}'`
     dd if=/dev/zero of=tmpfile bs=1024 count=$free_size
     sync

These got done without any errors until disk is full, and then run these steps:
	rm -rf tmpfile
	sync (will cause oops)


Zhipeng Gong


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