From dbbdbd0086320a026903ca34efedb6abf55230ed Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 15 Dec 2023 10:03:40 -0800 Subject: xfs: repair problems in CoW forks Try to repair errors that we see in file CoW forks so that we don't do stupid things like remap garbage into a file. There's not a lot we can do with the COW fork -- the ondisk metadata record only that the COW staging extents are owned by the refcount btree, which effectively means that we can't reconstruct this incore structure from scratch. Actually, this is even worse -- we can't touch written extents, because those map space that are actively under writeback, and there's not much to do with delalloc reservations. Hence we can only detect crosslinked unwritten extents and fix them by punching out the problematic parts and replacing them with delalloc extents. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- fs/xfs/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/xfs/Makefile') diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 66c1a5001772..a7830df42c4e 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -184,6 +184,7 @@ xfs-y += $(addprefix scrub/, \ agheader_repair.o \ alloc_repair.o \ bmap_repair.o \ + cow_repair.o \ ialloc_repair.o \ inode_repair.o \ newbt.o \ -- cgit v1.2.3