Here is v3 of the DRW locking patches. Main changes in this verison: * Removed EXPORT_SYMBOL for function since I do not intend to submit the locktorture patch * Added high-level comment as per David's request. V2: * Fixed all checkpatch warnings (Andrea Parri) * Properly call write_unlock in btrfs_drw_try_write_lock (Filipe Manana) * Comment fix. * Stress tested it via locktorture. Survived for 8 straight days on a 4 socket 48 thread machine. Nikolay Borisov (2): btrfs: convert snapshot/nocow exlcusion to drw lock btrfs: Hook btrfs' DRW lock to locktorture infrastructure fs/btrfs/ctree.h | 9 +---- fs/btrfs/disk-io.c | 46 ++++++--------------- fs/btrfs/extent-tree.c | 44 --------------------- fs/btrfs/file.c | 11 +++--- fs/btrfs/inode.c | 8 ++-- fs/btrfs/ioctl.c | 10 ++--- fs/btrfs/locking.c | 5 +++ fs/btrfs/locking.h | 1 + kernel/locking/locktorture.c | 77 +++++++++++++++++++++++++++++++++++- 9 files changed, 107 insertions(+), 104 deletions(-) -- 2.17.1
