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| author | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 19:03:40 +0100 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 19:03:40 +0100 |
| commit | dbbdbd0086320a026903ca34efedb6abf55230ed (patch) | |
| tree | 829f2db0041ddd0eeee28ed387ab63696ed20c05 /fs/xfs/scrub/repair.h | |
| parent | xfs: create a ranged query function for refcount btrees (diff) | |
| download | linux-dbbdbd0086320a026903ca34efedb6abf55230ed.tar.xz linux-dbbdbd0086320a026903ca34efedb6abf55230ed.zip | |
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 <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/scrub/repair.h')
| -rw-r--r-- | fs/xfs/scrub/repair.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/scrub/repair.h b/fs/xfs/scrub/repair.h index 51ba3df5998c..f89c8f08b037 100644 --- a/fs/xfs/scrub/repair.h +++ b/fs/xfs/scrub/repair.h @@ -111,6 +111,7 @@ int xrep_refcountbt(struct xfs_scrub *sc); int xrep_inode(struct xfs_scrub *sc); int xrep_bmap_data(struct xfs_scrub *sc); int xrep_bmap_attr(struct xfs_scrub *sc); +int xrep_bmap_cow(struct xfs_scrub *sc); int xrep_reinit_pagf(struct xfs_scrub *sc); int xrep_reinit_pagi(struct xfs_scrub *sc); @@ -173,6 +174,7 @@ xrep_setup_nothing( #define xrep_inode xrep_notsupported #define xrep_bmap_data xrep_notsupported #define xrep_bmap_attr xrep_notsupported +#define xrep_bmap_cow xrep_notsupported #endif /* CONFIG_XFS_ONLINE_REPAIR */ |