This patchset provides userspace equivalents for spinlocks, atomics, completion and semaphores that the shared libxfs code depends on in the kernel. I have executed fstests on a 4k block sized filesystem which has reflink and rmap enabled. Changelog: V1 -> V2: 1. Provide m4 macros to detect availability of liburcu on the system where xfsprogs is being built. 2. Initialize inode log item's spin lock. 3. Swap order of arguments provided to atomic[64]_[add|sub](). Dave Chinner (5): xfsprogs: introduce liburcu support libxfs: add spinlock_t wrapper atomic: convert to uatomic libxfs: add kernel-compatible completion API libxfs: add wrappers for kernel semaphores configure.ac | 3 ++ copy/Makefile | 3 +- copy/xfs_copy.c | 3 ++ db/Makefile | 3 +- debian/control | 2 +- growfs/Makefile | 3 +- include/Makefile | 3 ++ include/atomic.h | 65 +++++++++++++++++++++++++++++++------- include/builddefs.in | 4 ++- include/completion.h | 61 +++++++++++++++++++++++++++++++++++ include/libxfs.h | 3 ++ include/platform_defs.h.in | 1 + include/sema.h | 35 ++++++++++++++++++++ include/spinlock.h | 25 +++++++++++++++ include/xfs_inode.h | 1 + include/xfs_mount.h | 2 ++ include/xfs_trans.h | 1 + libfrog/workqueue.c | 3 ++ libxfs/init.c | 7 +++- libxfs/libxfs_priv.h | 9 +++--- libxfs/logitem.c | 4 ++- libxfs/rdwr.c | 2 ++ logprint/Makefile | 3 +- m4/Makefile | 1 + m4/package_urcu.m4 | 24 ++++++++++++++ mdrestore/Makefile | 3 +- mkfs/Makefile | 2 +- repair/Makefile | 2 +- repair/prefetch.c | 9 ++++-- repair/progress.c | 4 ++- scrub/Makefile | 3 +- scrub/progress.c | 2 ++ 32 files changed, 265 insertions(+), 31 deletions(-) create mode 100644 include/completion.h create mode 100644 include/sema.h create mode 100644 include/spinlock.h create mode 100644 m4/package_urcu.m4 -- 2.30.2
