[PATCH 6.1 CANDIDATE 18/26] xfs: load uncached unlinked inodes into memory on demand

[Leah Rumancik <leah.rumancik@xxxxxxxxx>]

From: "Darrick J. Wong" <djwong@xxxxxxxxxx>

[ Upstream commit 68b957f64fca1930164bfc6d6d379acdccd547d7 ]

shrikanth hegde reports that filesystems fail shortly after mount with
the following failure:

	WARNING: CPU: 56 PID: 12450 at fs/xfs/xfs_inode.c:1839 xfs_iunlink_lookup+0x58/0x80 [xfs]

This of course is the WARN_ON_ONCE in xfs_iunlink_lookup:

	ip = radix_tree_lookup(&pag->pag_ici_root, agino);
	if (WARN_ON_ONCE(!ip || !ip->i_ino)) { ... }