Commit b37c1e4e authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Carlos Maiolino
Browse files

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: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Signed-off-by: default avatarCarlos Maiolino <cem@kernel.org>
parent 19c5b605

fs/xfs/xfs_zone_alloc.c

+7 −0
Original line number Diff line number Diff line
@@ -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);