Hi all, This series fixes a couple filesystem shutdown corner cases related to dealing with the xfs_buf_log_item reference count. Patch 1 fixes a reference count leak that leads to an unmount hang due to a held buffer. Patch 2 fixes a premature free of the bli that leads to a panic due to use after free. Both of the above problems can be reproduced by running generic/388 in a loop (though it may require 100-200 iterations). I was originally considering reworking the bli reference counting, but I don't have a clear idea on whether a cleaner solution is available atm. These isolated fixes are lower risk and resolve the associated problems, so should probably be considered independently regardless. With these patches applied, generic/388 survives several thousand iterations and otherwise no regressions are observed in my tests. Thoughts, reviews, flames appreciated. Brian Brian Foster (2): xfs: release bli from transaction properly on fs shutdown xfs: remove bli from AIL before release on transaction abort fs/xfs/xfs_buf_item.c | 21 ++++++++++++--------- fs/xfs/xfs_trans_buf.c | 21 ++++++++++++++------- 2 files changed, 26 insertions(+), 16 deletions(-) -- 2.7.5 -- 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
