On Fri, Jun 23, 2017 at 09:48:21AM -0700, Chris Mason wrote: > Dave Jones hit a WARN_ON(nr < 0) in btrfs_wait_ordered_roots() with > v4.12-rc6. This was because commit 70e7af244 made it possible for > calc_reclaim_items_nr() to return a negative number. It's not really a > bug in that commit, it just didn't go far enough down the stack to find > all the possible 64->32 bit overflows. > > This switches calc_reclaim_items_nr() to return a u64 and changes everyone > that uses the results of that math to u64 as well. > > Reported-by: Dave Jones <[email protected]> > Fixes: 70e7af2 ("Btrfs: fix delalloc accounting leak caused by u32 overflow") > Signed-off-by: Chris Mason <[email protected]>
Reviewed-by: David Sterba <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
