From: Christoph Hellwig hch@lst.de
commit 6d2db12d56a389b3e8efa236976f8dc3a8ae00f0 upstream.
Protect against developers passing stupid limits when refactoring the RT code once again.
Signed-off-by: Christoph Hellwig hch@lst.de Reviewed-by: Darrick J. Wong djwong@kernel.org Signed-off-by: Darrick J. Wong djwong@kernel.org Signed-off-by: Catherine Hoang catherine.hoang@oracle.com Acked-by: Darrick J. Wong djwong@kernel.org --- fs/xfs/libxfs/xfs_rtbitmap.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c index 760172a65aff..d7d06dc89eb7 100644 --- a/fs/xfs/libxfs/xfs_rtbitmap.c +++ b/fs/xfs/libxfs/xfs_rtbitmap.c @@ -288,6 +288,8 @@ xfs_rtfind_forw( xfs_rtword_t wdiff; /* difference from wanted value */ int word; /* word number in the buffer */
+ ASSERT(start <= limit); + /* * Compute and read in starting bitmap block for starting block. */