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authorAmir Goldstein <amir73il@gmail.com>2018-01-26 22:24:40 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2018-01-29 18:27:23 +0300
commitacd1d71598f7654b6d7718bcbe979992295c672a (patch)
treedb35d8607f69ef0531ea53b05fa552cf671d1919 /.gitignore
parent751f3767c245f9adf4f0a4f8f04aae9ae1d675a0 (diff)
downloadlinux-acd1d71598f7654b6d7718bcbe979992295c672a.tar.xz
xfs: preserve i_rdev when recycling a reclaimable inode
Commit 66f364649d870 ("xfs: remove if_rdev") moved storing of rdev value for special inodes to VFS inodes, but forgot to preserve the value of i_rdev when recycling a reclaimable xfs_inode. This was detected by xfstest overlay/017 with inodex=on mount option and xfs base fs. The test does a lookup of overlay chardev and blockdev right after drop caches. Overlayfs inodes hold a reference on underlying xfs inodes when mount option index=on is configured. If drop caches reclaim xfs inodes, before it relclaims overlayfs inodes, that can sometimes leave a reclaimable xfs inode and that test hits that case quite often. When that happens, the xfs inode cache remains broken (zere i_rdev) until the next cycle mount or drop caches. Fixes: 66f364649d870 ("xfs: remove if_rdev") Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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