Hello, these patches fix races happening when devices are frequently destroyed and recreated in association of block device inode with corresponding gendisk. Generally when such race happen it results in use-after-free issues, block device page cache inconsistencies, or other problems. I have verified these patches fix use-after-free issues that could be reproduced by frequent creation and destruction of loop device. Hou Tao has verified that races reported by him in [1] related to gendisk-blkdev association were also fixed. Jens, can you please merge these patches? Thanks! Changes since v1: * Added tested-by tags Honza [1] https://www.spinics.net/lists/linux-block/msg20015.html
