On Wed, Jul 14, 2021 at 02:25:28PM -0700, Darrick J. Wong wrote:

From: Darrick J. Wong <djwong@kernel.org>

During a realtime grow operation, we run a single transaction for each
rt bitmap block added to the filesystem.  This means that each step has
to be careful to increase sb_rblocks appropriately.

Fix the integer overflow error in this calculation that can happen when
the extent size is very large.  Found by running growfs to add a rt
volume to a filesystem formatted with a 1g rt extent size.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/xfs_rtalloc.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Much easier to read now.

Reviewed-by: Dave Chinner <redacted>

-- 
Dave Chinner
david@fromorbit.com