Hi all, This second series of log fixes dates back to an earlier discussion that Dave and I had about the weird way that log recovery works w.r.t. intent items. The current code juggles nested transactions so that it can siphon off new deferred items for later; this we replace with a new dfops freezer that captures the log reservation type and remaining block reservation so that we finish the new deferred items with the same transaction context as we would have had the system not gone down. If you're going to start using this mess, you probably ought to just pull from my git trees, which are linked below. This is an extraordinary way to destroy everything. Enjoy! Comments and questions are, as always, welcome. --D kernel git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=fix-recovery-intent-chaining --- fs/xfs/libxfs/xfs_defer.c | 66 ++++++++++++++++++++++--- fs/xfs/libxfs/xfs_defer.h | 22 ++++++++ fs/xfs/libxfs/xfs_log_recover.h | 4 + fs/xfs/xfs_bmap_item.c | 16 +----- fs/xfs/xfs_extfree_item.c | 7 +-- fs/xfs/xfs_log_recover.c | 105 ++++++++++++++++++++++----------------- fs/xfs/xfs_refcount_item.c | 16 +----- fs/xfs/xfs_rmap_item.c | 7 +-- fs/xfs/xfs_trans.h | 4 + 9 files changed, 160 insertions(+), 87 deletions(-)
