Hi all, This series changes the directory update code to retain the ILOCK on all files involved in a rename until the end of the operation. The upcoming parent pointers patchset applies parent pointers in a separate chained update from the actual directory update, which is why it is now necessary to keep the ILOCK instead of dropping it after the first transaction in the chain. As a side effect, we no longer need to hold the IOLOCK during an rmapbt scan of inodes to serialize the scan with ongoing directory updates. If you're going to start using this code, I strongly recommend pulling from my git trees, which are linked below. This has been running on the djcloud for months with no problems. 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=retain-ilock-during-dir-ops xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=retain-ilock-during-dir-ops --- fs/xfs/libxfs/xfs_defer.c | 6 ++- fs/xfs/libxfs/xfs_defer.h | 8 +++- fs/xfs/scrub/rmap_repair.c | 16 ------- fs/xfs/scrub/tempfile.c | 2 + fs/xfs/xfs_dquot.c | 41 ++++++++++++++++++ fs/xfs/xfs_dquot.h | 1 fs/xfs/xfs_inode.c | 98 ++++++++++++++++++++++++++++++++------------ fs/xfs/xfs_inode.h | 2 + fs/xfs/xfs_qm.c | 4 +- fs/xfs/xfs_qm.h | 2 - fs/xfs/xfs_symlink.c | 6 ++- fs/xfs/xfs_trans.c | 9 +++- fs/xfs/xfs_trans_dquot.c | 15 ++++--- 13 files changed, 156 insertions(+), 54 deletions(-)
