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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(-)




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