Hi all, These are a couple fixes for dealing with delalloc indlen reservations that happen to be less than the worst case res as calculated by xfs_bmap_worst_indlen(). Patch 1 prevents an unexpected in-core allocation and assert failure in the delalloc extent merge case. Patch 2 reworks xfs_bmap_split_indlen() to more fairly divide indlen blocks when an extent is split and the existing reservation is not sufficient. The current scheme doesn't properly deal with extents that are already under-reserved and can lead to indlen == 0 cases fairly easily. The latter issue was reported by Patrick[1] and reproduced simply by copying a large sparse vdisk image using 'cp --sparse=always.' These patches survive xfstests with and without rmapbt without regression. Brian [1] http://www.spinics.net/lists/linux-xfs/msg03935.html Brian Foster (2): xfs: handle indlen shortage on delalloc extent merge xfs: split indlen reservations fairly when under reserved fs/xfs/libxfs/xfs_bmap.c | 67 +++++++++++++++++++++++++++++++++--------------- 1 file changed, 46 insertions(+), 21 deletions(-) -- 2.7.4 -- 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
