On Sun, Dec 10, 2017 at 06:16:41PM -0800, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > We don't hold the ilock through the entire sequence of xfs_writepage_map > -> xfs_map_cow -> xfs_reflink_find_cow_mapping. This means that we can > race with another thread that is trying to clear the inode reflink flag, > with the result that the flag is set for the xfs_map_cow check but > cleared before we get to the assert in find_cow_mapping. When this > happens, we blow the assert even though everything is fine. > > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
