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Message-Id: <20140206134825.305510953@infradead.org> Date: Thu, 06 Feb 2014 14:48:25 +0100 From: Peter Zijlstra <peterz@...radead.org> To: linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, mingo@...nel.org, will.deacon@....com, paulmck@...ux.vnet.ibm.com, Peter Zijlstra <peterz@...radead.org> Subject: [RFC][PATCH 0/5] arch: atomic rework Hi all, A few too large patches here, mostly as RFC to see if we want to continue with this before I sink more time into it. I hope they make it out to the lists. This all started with me wanting to implement atomic_sub_release() for all archs, but I got side-tracked a bit and it ended up cleaning up bits and deleting almost 1400 lines of code. Its been compiled on everything I have a compiler for, however frv and tile are missing because they're special and I was tired. --- Documentation/atomic_ops.txt | 31 - Documentation/memory-barriers.txt | 44 - a/arch/arc/include/asm/barrier.h | 37 - a/arch/hexagon/include/asm/barrier.h | 37 - arch/alpha/include/asm/atomic.h | 225 +++----- arch/alpha/include/asm/bitops.h | 3 arch/arc/include/asm/atomic.h | 198 ++----- arch/arc/include/asm/bitops.h | 5 arch/arm/include/asm/atomic.h | 301 ++++------- arch/arm/include/asm/barrier.h | 3 arch/arm/include/asm/bitops.h | 4 arch/arm64/include/asm/atomic.h | 212 +++----- arch/arm64/include/asm/barrier.h | 3 arch/arm64/include/asm/bitops.h | 9 arch/avr32/include/asm/atomic.h | 95 +-- arch/avr32/include/asm/bitops.h | 9 arch/blackfin/include/asm/atomic.h | 5 arch/blackfin/include/asm/barrier.h | 3 arch/blackfin/include/asm/bitops.h | 14 arch/blackfin/mach-common/smp.c | 2 arch/c6x/include/asm/bitops.h | 8 arch/cris/include/arch-v10/arch/system.h | 2 arch/cris/include/asm/atomic.h | 66 +- arch/cris/include/asm/bitops.h | 9 arch/frv/include/asm/atomic.h | 7 arch/frv/include/asm/bitops.h | 6 arch/hexagon/include/asm/atomic.h | 74 +- arch/hexagon/include/asm/bitops.h | 4 arch/ia64/include/asm/atomic.h | 212 ++++---- arch/ia64/include/asm/barrier.h | 3 arch/ia64/include/asm/bitops.h | 9 arch/ia64/include/uapi/asm/cmpxchg.h | 9 arch/m32r/include/asm/atomic.h | 191 ++----- arch/m32r/include/asm/bitops.h | 6 arch/m32r/kernel/smp.c | 4 arch/m68k/include/asm/atomic.h | 130 +---- arch/m68k/include/asm/bitops.h | 7 arch/metag/include/asm/atomic.h | 6 arch/metag/include/asm/atomic_lnkget.h | 159 +----- arch/metag/include/asm/atomic_lock1.h | 100 +-- arch/metag/include/asm/barrier.h | 3 arch/metag/include/asm/bitops.h | 6 arch/mips/include/asm/atomic.h | 570 +++++++--------------- arch/mips/include/asm/barrier.h | 3 arch/mips/include/asm/bitops.h | 11 arch/mips/kernel/irq.c | 4 arch/mn10300/include/asm/atomic.h | 199 +------ arch/mn10300/include/asm/bitops.h | 4 arch/mn10300/mm/tlb-smp.c | 6 arch/openrisc/include/asm/bitops.h | 9 arch/parisc/include/asm/atomic.h | 121 ++-- arch/parisc/include/asm/bitops.h | 4 arch/powerpc/include/asm/atomic.h | 214 +++----- arch/powerpc/include/asm/barrier.h | 3 arch/powerpc/include/asm/bitops.h | 6 arch/powerpc/kernel/crash.c | 2 arch/powerpc/kernel/misc_32.S | 19 arch/s390/include/asm/atomic.h | 93 ++- arch/s390/include/asm/barrier.h | 5 arch/s390/include/asm/bitops.h | 1 arch/s390/kernel/time.c | 4 arch/s390/kvm/diag.c | 2 arch/s390/kvm/intercept.c | 2 arch/s390/kvm/interrupt.c | 16 arch/s390/kvm/kvm-s390.c | 14 arch/s390/kvm/sigp.c | 6 arch/score/include/asm/bitops.h | 7 arch/sh/include/asm/atomic-grb.h | 164 +----- arch/sh/include/asm/atomic-irq.h | 88 +-- arch/sh/include/asm/atomic-llsc.h | 135 +---- arch/sh/include/asm/atomic.h | 6 arch/sh/include/asm/bitops.h | 7 arch/sparc/include/asm/atomic_32.h | 30 - arch/sparc/include/asm/atomic_64.h | 53 -- arch/sparc/include/asm/barrier_32.h | 1 arch/sparc/include/asm/barrier_64.h | 3 arch/sparc/include/asm/bitops_32.h | 4 arch/sparc/include/asm/bitops_64.h | 4 arch/sparc/include/asm/processor.h | 2 arch/sparc/kernel/smp_64.c | 2 arch/sparc/lib/atomic32.c | 28 - arch/sparc/lib/atomic_64.S | 167 ++---- arch/sparc/lib/ksyms.c | 20 arch/tile/include/asm/atomic_32.h | 10 arch/tile/include/asm/atomic_64.h | 6 arch/tile/include/asm/barrier.h | 14 arch/tile/include/asm/bitops.h | 1 arch/tile/include/asm/bitops_32.h | 8 arch/tile/include/asm/bitops_64.h | 4 arch/x86/include/asm/atomic.h | 39 - arch/x86/include/asm/atomic64_32.h | 20 arch/x86/include/asm/atomic64_64.h | 22 arch/x86/include/asm/barrier.h | 4 arch/x86/include/asm/bitops.h | 6 arch/x86/include/asm/sync_bitops.h | 2 arch/x86/kernel/apic/hw_nmi.c | 2 arch/xtensa/include/asm/atomic.h | 318 +++--------- arch/xtensa/include/asm/bitops.h | 4 block/blk-iopoll.c | 4 crypto/chainiv.c | 2 drivers/base/power/domain.c | 2 drivers/block/mtip32xx/mtip32xx.c | 4 drivers/cpuidle/coupled.c | 2 drivers/firewire/ohci.c | 2 drivers/gpu/drm/drm_irq.c | 10 drivers/gpu/drm/i915/i915_irq.c | 6 drivers/md/bcache/bcache.h | 2 drivers/md/bcache/closure.h | 2 drivers/md/dm-bufio.c | 8 drivers/md/dm-snap.c | 4 drivers/md/dm.c | 2 drivers/md/raid5.c | 2 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c | 6 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 6 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 34 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c | 26 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 12 drivers/net/ethernet/broadcom/cnic.c | 8 drivers/net/ethernet/brocade/bna/bnad.c | 6 drivers/net/ethernet/chelsio/cxgb/cxgb2.c | 2 drivers/net/ethernet/chelsio/cxgb3/sge.c | 6 drivers/net/ethernet/chelsio/cxgb4/sge.c | 2 drivers/net/ethernet/chelsio/cxgb4vf/sge.c | 2 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 drivers/net/wireless/ti/wlcore/main.c | 2 drivers/pci/xen-pcifront.c | 4 drivers/s390/scsi/zfcp_aux.c | 2 drivers/s390/scsi/zfcp_erp.c | 68 +- drivers/s390/scsi/zfcp_fc.c | 8 drivers/s390/scsi/zfcp_fsf.c | 30 - drivers/s390/scsi/zfcp_qdio.c | 14 drivers/scsi/isci/remote_device.c | 2 drivers/target/loopback/tcm_loop.c | 4 drivers/target/target_core_alua.c | 26 - drivers/target/target_core_device.c | 6 drivers/target/target_core_iblock.c | 2 drivers/target/target_core_pr.c | 56 +- drivers/target/target_core_transport.c | 16 drivers/target/target_core_ua.c | 10 drivers/tty/n_tty.c | 2 drivers/tty/serial/mxs-auart.c | 4 drivers/usb/gadget/tcm_usb_gadget.c | 4 drivers/usb/serial/usb_wwan.c | 2 drivers/vhost/scsi.c | 2 drivers/w1/w1_family.c | 4 drivers/xen/xen-pciback/pciback_ops.c | 4 fs/btrfs/btrfs_inode.h | 2 fs/btrfs/extent_io.c | 2 fs/btrfs/inode.c | 6 fs/buffer.c | 2 fs/ext4/resize.c | 2 fs/gfs2/glock.c | 8 fs/gfs2/glops.c | 2 fs/gfs2/lock_dlm.c | 4 fs/gfs2/recovery.c | 2 fs/gfs2/sys.c | 4 fs/jbd2/commit.c | 6 fs/nfs/dir.c | 12 fs/nfs/inode.c | 2 fs/nfs/nfs4filelayoutdev.c | 4 fs/nfs/nfs4state.c | 4 fs/nfs/pagelist.c | 6 fs/nfs/pnfs.c | 2 fs/nfs/pnfs.h | 2 fs/nfs/write.c | 4 fs/ubifs/lpt_commit.c | 4 fs/ubifs/tnc_commit.c | 4 include/asm-generic/atomic.h | 176 ++---- include/asm-generic/atomic64.h | 17 include/asm-generic/barrier.h | 8 include/asm-generic/bitops.h | 8 include/asm-generic/bitops/atomic.h | 2 include/asm-generic/bitops/lock.h | 2 include/linux/atomic.h | 13 include/linux/buffer_head.h | 2 include/linux/genhd.h | 2 include/linux/interrupt.h | 8 include/linux/netdevice.h | 2 include/linux/sched.h | 6 include/linux/sunrpc/sched.h | 8 include/linux/sunrpc/xprt.h | 8 include/linux/tracehook.h | 2 include/net/ip_vs.h | 4 kernel/debug/debug_core.c | 4 kernel/futex.c | 2 kernel/kmod.c | 2 kernel/rcu/tree.c | 22 kernel/rcu/tree_plugin.h | 8 kernel/sched/cpupri.c | 6 kernel/sched/wait.c | 2 lib/atomic64.c | 77 +- mm/backing-dev.c | 2 mm/filemap.c | 4 net/atm/pppoatm.c | 2 net/bluetooth/hci_event.c | 4 net/core/dev.c | 8 net/core/link_watch.c | 2 net/ipv4/inetpeer.c | 2 net/netfilter/nf_conntrack_core.c | 2 net/rds/ib_recv.c | 4 net/rds/iw_recv.c | 4 net/rds/send.c | 6 net/rds/tcp_send.c | 2 net/sunrpc/auth.c | 2 net/sunrpc/auth_gss/auth_gss.c | 2 net/sunrpc/backchannel_rqst.c | 4 net/sunrpc/xprt.c | 4 net/sunrpc/xprtsock.c | 16 net/unix/af_unix.c | 2 sound/pci/bt87x.c | 4 211 files changed, 2188 insertions(+), 3563 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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