diff options
| author | Christoph Hellwig <hch@lst.de> | 2026-01-14 07:53:28 +0100 |
|---|---|---|
| committer | Carlos Maiolino <cem@kernel.org> | 2026-01-21 12:57:17 +0100 |
| commit | b37c1e4e9af795ac31ddc992b0461182c45705dc (patch) | |
| tree | 216c401975315c70be76e1e6269bf92c16142128 | |
| parent | 19c5b6051ed62d8c4b1cf92e463c1bcf629107f4 (diff) | |
xfs: check that used blocks are smaller than the write pointer
Any used block must have been written, this reject used blocks > write
pointer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
| -rw-r--r-- | fs/xfs/xfs_zone_alloc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_zone_alloc.c b/fs/xfs/xfs_zone_alloc.c index 538236ea2466..d127f122d6cf 100644 --- a/fs/xfs/xfs_zone_alloc.c +++ b/fs/xfs/xfs_zone_alloc.c @@ -1033,6 +1033,13 @@ xfs_init_zone( return -EFSCORRUPTED; } + if (used > write_pointer) { + xfs_warn(mp, +"zone %u has used counter (0x%x) larger than write pointer (0x%x).", + rtg_rgno(rtg), used, write_pointer); + return -EFSCORRUPTED; + } + if (write_pointer == 0 && used != 0) { xfs_warn(mp, "empty zone %u has non-zero used counter (0x%x).", rtg_rgno(rtg), used); |