]> git.karo-electronics.de Git - linux-beck.git/commit
xfs: when replaying bmap operations, don't let unlinked inodes get reaped
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 3 Oct 2016 16:11:29 +0000 (09:11 -0700)
committerDarrick J. Wong <darrick.wong@oracle.com>
Tue, 4 Oct 2016 18:05:44 +0000 (11:05 -0700)
commit17c12bcd3030e4b3247d0c961ce598c731a9dcf9
tree6f3cf25e6946232fa12a73df795f43a873f68193
parent9f3afb57d5f1e7145986132106c6ca91f8136cc2
xfs: when replaying bmap operations, don't let unlinked inodes get reaped

Log recovery will iget an inode to replay BUI items and iput the inode
when it's done.  Unfortunately, if the inode was unlinked, the iput
will see that i_nlink == 0 and decide to truncate & free the inode,
which prevents us from replaying subsequent BUIs.  We can't skip the
BUIs because we have to replay all the redo items to ensure that
atomic operations complete.

Since unlinked inode recovery will reap the inode anyway, we can
safely introduce a new inode flag to indicate that an inode is in this
'unlinked recovery' state and should not be auto-reaped in the
drop_inode path.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
fs/xfs/xfs_bmap_item.c
fs/xfs/xfs_inode.c
fs/xfs/xfs_inode.h
fs/xfs/xfs_log_recover.c
fs/xfs/xfs_mount.c
fs/xfs/xfs_super.c