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Message-Id: <1482994571-18687-1-git-send-email-elena.reshetova@intel.com>
Date: Thu, 29 Dec 2016 08:55:52 +0200
From: Elena Reshetova <elena.reshetova@...el.com>
To: kernel-hardening@...ts.openwall.com
Cc: keescook@...omium.org,
arnd@...db.de,
tglx@...utronix.de,
mingo@...hat.com,
h.peter.anvin@...el.com,
peterz@...radead.org,
will.deacon@....com,
dwindsor@...il.com,
gregkh@...uxfoundation.org,
ishkamiel@...il.com,
Elena Reshetova <elena.reshetova@...el.com>
Subject: [RFC PATCH 00/19] refcount_t API + usage
This patch series is build on top of Peter's Zijlstra patches
(first 6 patches with only minor fix) that provide refcount_t
type and API definition. The rest of patches convert various
places of kernel subsystems where atomic_t was used for reference
counting to new refcount_t type and API.
By doing this, we make sure that underflows and overflows
cannot occur in these places and therefore no use-after-free situation
can be created and misused by an attacker.
The patch 7 (mixed: kref fixed) probably should be just merged with
earlier or later patches, since it is minor kref related fixes. We
left it separately now for easier review.
The patches still have a number of rough places, where we especially
would need a feedback. The patches also do not cover absolutely all
cases where atomic_t is used as refcounter. The more complex places
are left for the future patch series and their occurences are documented in
https://docs.google.com/document/d/1Gw-SQoxJ3RAofGrkEm7qEyTC48mst3svVjxnVKXyGPs/edit?usp=sharing
The automatic finding of atomic_t variables used as refcounters
was done using Coccinelle (http://coccinelle.lip6.fr/).
We thank Julia Lawall for helping us to get started on this!
Testing and compilation status:
- Compiles on x86, boots to GUI, no warns in the log
- Compiles for arm (defconfig, imx_v6_v7_defconfig), but cannot test
The patches are on top of linux-next/stable as of yesterday. Patches
would greatly benefit from compile proof test on all arches because of
extensive changes.
Elena Reshetova (19):
Since we need to change the implementation, stop exposing internals.
Provide kref_read() to read the current reference count; typically
used for debug messages.
By general sentiment kref_sub() is a bad interface, make it go away.
For some obscure reason apparmor thinks its needs to locally implement
kref primitives that already exist. Stop doing this.
Because home-rolling your own is _awesome_, stop doing it. Provide
kref_put_lock(), just like kref_put_mutex() but for a spinlock.
Leak references by unbalanced get, instead of poking at kref
implementation details.
Provide refcount_t, an atomic_t like primitive built just for
refcounting.
mixed: kref fixes
kernel, mm: convert from atomic_t to refcount_t
net: convert from atomic_t to refcount_t
fs: convert from atomic_t to refcount_t
security: convert from atomic_t to refcount_t
sound: convert from atomic_t to refcount_t
ipc: covert from atomic_t to refcount_t
tools: convert from atomic_t to refcount_t
block: convert from atomic_t to refcount_t
drivers: net convert from atomic_t to refcount_t
drivers: misc drivers convert from atomic_t to refcount_t
drivers: infiniband convert from atomic_t to refcount_t
drivers: lustre convert from atomic_t to refcount_t
arch/alpha/kernel/smp.c | 6 +-
arch/arc/kernel/smp.c | 2 +-
arch/arc/mm/tlb.c | 2 +-
arch/arm/kernel/smp.c | 2 +-
arch/blackfin/mach-common/smp.c | 4 +-
arch/frv/mm/mmu-context.c | 2 +-
arch/ia64/include/asm/tlbflush.h | 2 +-
arch/ia64/kernel/smp.c | 2 +-
arch/ia64/sn/kernel/sn2/sn2_smp.c | 4 +-
arch/metag/kernel/smp.c | 2 +-
arch/mips/kernel/process.c | 2 +-
arch/mips/kernel/smp.c | 6 +-
arch/parisc/include/asm/mmu_context.h | 2 +-
arch/powerpc/mm/hugetlbpage.c | 2 +-
arch/powerpc/mm/icswx.c | 4 +-
arch/powerpc/platforms/cell/spufs/file.c | 2 +-
arch/s390/include/asm/debug.h | 3 +-
arch/s390/kernel/debug.c | 6 +-
arch/sh/kernel/smp.c | 8 +-
arch/sparc/kernel/mdesc.c | 17 +-
arch/sparc/kernel/smp_64.c | 6 +-
arch/sparc/mm/srmmu.c | 2 +-
arch/um/kernel/tlb.c | 2 +-
arch/x86/include/asm/amd_nb.h | 3 +-
arch/x86/kernel/cpu/common.c | 4 +-
arch/x86/kernel/cpu/mcheck/mce_amd.c | 6 +-
arch/x86/kernel/tboot.c | 4 +-
arch/xtensa/kernel/smp.c | 2 +-
block/bio.c | 6 +-
block/blk-cgroup.c | 2 +-
block/blk-ioc.c | 4 +-
block/blk-tag.c | 8 +-
block/bsg.c | 9 +-
block/cfq-iosched.c | 4 +-
crypto/algif_aead.c | 2 +-
drivers/atm/fore200e.c | 13 +-
drivers/atm/he.c | 2 +-
drivers/atm/idt77252.c | 4 +-
drivers/block/drbd/drbd_bitmap.c | 2 +-
drivers/block/drbd/drbd_main.c | 7 +-
drivers/block/drbd/drbd_req.c | 31 +--
drivers/block/rbd.c | 8 +-
drivers/block/virtio_blk.c | 2 +-
drivers/block/xen-blkback/common.h | 7 +-
drivers/block/xen-blkback/xenbus.c | 2 +-
drivers/char/mspec.c | 9 +-
drivers/connector/cn_queue.c | 4 +-
drivers/connector/connector.c | 2 +-
drivers/firewire/core-topology.c | 2 +-
drivers/firewire/core.h | 8 +-
drivers/firmware/efi/arm-runtime.c | 4 +-
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 +-
drivers/gpu/drm/drm_gem_cma_helper.c | 2 +-
drivers/gpu/drm/drm_info.c | 2 +-
drivers/gpu/drm/drm_mode_object.c | 4 +-
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 2 +-
drivers/gpu/drm/i915/i915_gem_object.h | 2 +-
drivers/gpu/drm/i915/i915_gem_userptr.c | 4 +-
drivers/gpu/drm/msm/msm_gem.c | 3 +-
drivers/gpu/drm/nouveau/nouveau_fence.c | 2 +-
drivers/gpu/drm/omapdrm/omap_gem.c | 2 +-
drivers/gpu/drm/ttm/ttm_bo.c | 63 ++---
drivers/gpu/drm/ttm/ttm_execbuf_util.c | 4 +-
drivers/gpu/drm/ttm/ttm_object.c | 2 +-
drivers/infiniband/core/addr.c | 8 +-
drivers/infiniband/core/cm.c | 26 +-
drivers/infiniband/core/cma.c | 29 +--
drivers/infiniband/core/cq.c | 4 +-
drivers/infiniband/core/iwcm.c | 10 +-
drivers/infiniband/core/iwcm.h | 4 +-
drivers/infiniband/core/iwpm_util.c | 8 +-
drivers/infiniband/core/iwpm_util.h | 3 +-
drivers/infiniband/core/mad.c | 36 +--
drivers/infiniband/core/mad_priv.h | 5 +-
drivers/infiniband/core/mad_rmpp.c | 11 +-
drivers/infiniband/core/multicast.c | 31 +--
drivers/infiniband/core/uverbs.h | 4 +-
drivers/infiniband/core/uverbs_cmd.c | 74 +++---
drivers/infiniband/core/uverbs_main.c | 14 +-
drivers/infiniband/core/verbs.c | 102 ++++----
drivers/infiniband/hw/cxgb3/iwch_cm.h | 6 +-
drivers/infiniband/hw/cxgb3/iwch_ev.c | 8 +-
drivers/infiniband/hw/cxgb3/iwch_provider.c | 16 +-
drivers/infiniband/hw/cxgb3/iwch_provider.h | 5 +-
drivers/infiniband/hw/cxgb3/iwch_qp.c | 6 +-
drivers/infiniband/hw/cxgb4/cq.c | 6 +-
drivers/infiniband/hw/cxgb4/ev.c | 8 +-
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 9 +-
drivers/infiniband/hw/cxgb4/qp.c | 2 +-
drivers/infiniband/hw/hfi1/qp.c | 2 +-
drivers/infiniband/hw/hfi1/ruc.c | 2 +-
drivers/infiniband/hw/hfi1/user_sdma.c | 13 +-
drivers/infiniband/hw/hns/hns_roce_cq.c | 8 +-
drivers/infiniband/hw/hns/hns_roce_device.h | 5 +-
drivers/infiniband/hw/hns/hns_roce_qp.c | 10 +-
drivers/infiniband/hw/i40iw/i40iw.h | 3 +-
drivers/infiniband/hw/i40iw/i40iw_cm.c | 50 ++--
drivers/infiniband/hw/i40iw/i40iw_main.c | 2 +-
drivers/infiniband/hw/i40iw/i40iw_puda.h | 4 +-
drivers/infiniband/hw/i40iw/i40iw_utils.c | 16 +-
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 2 +-
drivers/infiniband/hw/i40iw/i40iw_verbs.h | 4 +-
drivers/infiniband/hw/mlx4/mcg.c | 39 +--
drivers/infiniband/hw/mlx5/cq.c | 2 +-
drivers/infiniband/hw/mlx5/main.c | 20 +-
drivers/infiniband/hw/nes/nes.c | 8 +-
drivers/infiniband/hw/nes/nes_cm.c | 32 +--
drivers/infiniband/hw/nes/nes_cm.h | 6 +-
drivers/infiniband/hw/nes/nes_hw.c | 8 +-
drivers/infiniband/hw/nes/nes_hw.h | 4 +-
drivers/infiniband/hw/nes/nes_mgt.c | 6 +-
drivers/infiniband/hw/nes/nes_utils.c | 4 +-
drivers/infiniband/hw/nes/nes_verbs.c | 44 ++--
drivers/infiniband/hw/nes/nes_verbs.h | 6 +-
drivers/infiniband/hw/qib/qib_keys.c | 4 +-
drivers/infiniband/hw/qib/qib_ruc.c | 2 +-
drivers/infiniband/hw/usnic/usnic_ib_sysfs.c | 6 +-
drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 4 +-
drivers/infiniband/sw/rdmavt/ah.c | 4 +-
drivers/infiniband/sw/rdmavt/mr.c | 6 +-
drivers/infiniband/sw/rdmavt/qp.c | 8 +-
drivers/infiniband/ulp/ipoib/ipoib.h | 5 +-
drivers/infiniband/ulp/ipoib/ipoib_main.c | 8 +-
drivers/iommu/intel-svm.c | 2 +-
drivers/isdn/mISDN/socket.c | 2 +-
drivers/md/bcache/alloc.c | 2 +-
drivers/md/bcache/bcache.h | 9 +-
drivers/md/bcache/btree.c | 8 +-
drivers/md/bcache/super.c | 6 +-
drivers/md/bcache/writeback.h | 2 +-
drivers/md/dm-cache-metadata.c | 9 +-
drivers/md/dm-core.h | 3 +-
drivers/md/dm-table.c | 6 +-
drivers/md/dm.c | 19 +-
drivers/md/dm.h | 3 +-
drivers/md/md.c | 6 +-
drivers/md/md.h | 3 +-
drivers/md/raid5-cache.c | 8 +-
drivers/md/raid5.c | 66 +++---
drivers/md/raid5.h | 3 +-
drivers/media/pci/cx88/cx88-cards.c | 2 +-
drivers/media/pci/cx88/cx88-core.c | 4 +-
drivers/media/pci/cx88/cx88.h | 3 +-
drivers/media/usb/s2255/s2255drv.c | 21 +-
drivers/media/usb/uvc/uvc_ctrl.c | 7 +-
drivers/media/usb/uvc/uvc_driver.c | 12 +-
drivers/media/usb/uvc/uvcvideo.h | 5 +-
drivers/media/v4l2-core/videobuf2-dma-contig.c | 11 +-
drivers/media/v4l2-core/videobuf2-dma-sg.c | 11 +-
drivers/media/v4l2-core/videobuf2-memops.c | 6 +-
drivers/media/v4l2-core/videobuf2-vmalloc.c | 11 +-
drivers/misc/genwqe/card_dev.c | 2 +-
drivers/misc/mei/debugfs.c | 2 +-
drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c | 8 +-
drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h | 4 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 6 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 4 +-
drivers/net/ethernet/mellanox/mlx4/cq.c | 12 +-
drivers/net/ethernet/mellanox/mlx4/qp.c | 8 +-
drivers/net/ethernet/mellanox/mlx4/srq.c | 8 +-
drivers/net/ethernet/mellanox/mlx5/core/cq.c | 16 +-
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 24 +-
drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 3 +-
drivers/net/ethernet/mellanox/mlx5/core/qp.c | 6 +-
drivers/net/ethernet/mellanox/mlx5/core/srq.c | 10 +-
drivers/net/ethernet/sun/niu.c | 6 +-
drivers/net/ethernet/sun/niu.h | 4 +-
drivers/net/hamradio/6pack.c | 12 +-
drivers/net/macsec.c | 25 +-
drivers/net/ppp/ppp_async.c | 10 +-
drivers/net/ppp/ppp_generic.c | 17 +-
drivers/net/ppp/ppp_synctty.c | 11 +-
drivers/net/rionet.c | 2 +-
drivers/net/vxlan.c | 10 +-
drivers/net/wireless/intel/ipw2x00/libipw_rx.c | 8 +-
drivers/net/wireless/intel/ipw2x00/libipw_tx.c | 4 +-
.../net/wireless/intersil/hostap/hostap_80211_rx.c | 8 +-
.../net/wireless/intersil/hostap/hostap_80211_tx.c | 4 +-
drivers/net/wireless/intersil/hostap/hostap_hw.c | 12 +-
drivers/net/wireless/intersil/hostap/hostap_wlan.h | 3 +-
.../net/wireless/intersil/orinoco/orinoco_usb.c | 15 +-
drivers/pci/host/pci-hyperv.c | 7 +-
drivers/pci/hotplug/pnv_php.c | 2 +-
drivers/pci/slot.c | 2 +-
drivers/s390/char/vmur.c | 8 +-
drivers/s390/char/vmur.h | 4 +-
drivers/s390/net/ctcm_main.c | 26 +-
drivers/s390/net/lcs.c | 10 +-
drivers/s390/net/lcs.h | 3 +-
drivers/s390/net/netiucv.c | 10 +-
drivers/s390/net/qeth_core.h | 3 +-
drivers/s390/net/qeth_core_main.c | 14 +-
drivers/scsi/bnx2fc/bnx2fc_io.c | 8 +-
drivers/scsi/cxgbi/libcxgbi.h | 6 +-
drivers/scsi/libfc/fc_exch.c | 10 +-
drivers/scsi/libfc/fc_fcp.c | 6 +-
drivers/scsi/libiscsi.c | 8 +-
drivers/scsi/lpfc/lpfc_debugfs.c | 2 +-
drivers/scsi/lpfc/lpfc_els.c | 2 +-
drivers/scsi/lpfc/lpfc_hbadisc.c | 40 ++--
drivers/scsi/lpfc/lpfc_init.c | 3 +-
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 4 +-
drivers/staging/android/ion/ion.c | 2 +-
drivers/staging/comedi/comedi_buf.c | 2 +-
.../lustre/include/linux/libcfs/libcfs_hash.h | 7 +-
.../lustre/include/linux/libcfs/libcfs_private.h | 32 +++
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c | 14 +-
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h | 31 +--
.../staging/lustre/lnet/klnds/socklnd/socklnd.c | 28 +--
.../staging/lustre/lnet/klnds/socklnd/socklnd.h | 51 ++--
.../staging/lustre/lnet/klnds/socklnd/socklnd_cb.c | 6 +-
drivers/staging/lustre/lnet/libcfs/hash.c | 6 +-
drivers/staging/lustre/lnet/lnet/net_fault.c | 10 +-
drivers/staging/lustre/lnet/selftest/framework.c | 10 +-
drivers/staging/lustre/lnet/selftest/selftest.h | 22 +-
drivers/staging/lustre/lustre/include/cl_object.h | 9 +-
drivers/staging/lustre/lustre/include/lu_object.h | 7 +-
.../staging/lustre/lustre/include/lustre_disk.h | 4 +-
drivers/staging/lustre/lustre/include/lustre_dlm.h | 8 +-
.../staging/lustre/lustre/include/lustre_export.h | 4 +-
.../staging/lustre/lustre/include/lustre_import.h | 4 +-
drivers/staging/lustre/lustre/include/lustre_log.h | 13 +-
drivers/staging/lustre/lustre/include/lustre_net.h | 17 +-
drivers/staging/lustre/lustre/include/lustre_nrs.h | 2 +-
drivers/staging/lustre/lustre/include/lustre_sec.h | 8 +-
drivers/staging/lustre/lustre/include/obd.h | 15 +-
drivers/staging/lustre/lustre/include/obd_class.h | 4 +-
drivers/staging/lustre/lustre/ldlm/ldlm_internal.h | 2 +-
drivers/staging/lustre/lustre/ldlm/ldlm_lock.c | 36 +--
drivers/staging/lustre/lustre/ldlm/ldlm_resource.c | 44 ++--
drivers/staging/lustre/lustre/llite/lcommon_cl.c | 4 +-
.../staging/lustre/lustre/llite/llite_internal.h | 3 +-
drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +-
drivers/staging/lustre/lustre/llite/lproc_llite.c | 2 +-
drivers/staging/lustre/lustre/llite/statahead.c | 6 +-
drivers/staging/lustre/lustre/llite/vvp_object.c | 2 +-
drivers/staging/lustre/lustre/llite/vvp_page.c | 6 +-
drivers/staging/lustre/lustre/lmv/lmv_obd.c | 2 +-
drivers/staging/lustre/lustre/lov/lov_ea.c | 2 +-
drivers/staging/lustre/lustre/lov/lov_internal.h | 12 +-
drivers/staging/lustre/lustre/lov/lov_obd.c | 10 +-
drivers/staging/lustre/lustre/lov/lov_object.c | 6 +-
drivers/staging/lustre/lustre/lov/lov_pack.c | 12 +-
drivers/staging/lustre/lustre/lov/lov_pool.c | 10 +-
drivers/staging/lustre/lustre/lov/lov_request.c | 2 +-
drivers/staging/lustre/lustre/mgc/mgc_request.c | 24 +-
drivers/staging/lustre/lustre/obdclass/cl_page.c | 20 +-
drivers/staging/lustre/lustre/obdclass/class_obd.c | 2 +-
drivers/staging/lustre/lustre/obdclass/genops.c | 30 +--
.../lustre/lustre/obdclass/linux/linux-module.c | 2 +-
drivers/staging/lustre/lustre/obdclass/llog.c | 8 +-
drivers/staging/lustre/lustre/obdclass/llog_obd.c | 8 +-
drivers/staging/lustre/lustre/obdclass/lu_object.c | 10 +-
.../staging/lustre/lustre/obdclass/obd_config.c | 12 +-
drivers/staging/lustre/lustre/obdclass/obd_mount.c | 18 +-
.../staging/lustre/lustre/obdecho/echo_client.c | 12 +-
drivers/staging/lustre/lustre/osc/osc_cache.c | 20 +-
.../staging/lustre/lustre/osc/osc_cl_internal.h | 4 +-
drivers/staging/lustre/lustre/osc/osc_page.c | 4 +-
drivers/staging/lustre/lustre/osc/osc_request.c | 2 +-
drivers/staging/lustre/lustre/ptlrpc/client.c | 22 +-
drivers/staging/lustre/lustre/ptlrpc/connection.c | 24 +-
drivers/staging/lustre/lustre/ptlrpc/nrs.c | 23 +-
.../staging/lustre/lustre/ptlrpc/pack_generic.c | 6 +-
.../staging/lustre/lustre/ptlrpc/ptlrpc_internal.h | 4 +-
drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c | 2 +-
drivers/staging/lustre/lustre/ptlrpc/sec.c | 28 +--
drivers/staging/lustre/lustre/ptlrpc/sec_gc.c | 2 +-
drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c | 2 +-
drivers/staging/lustre/lustre/ptlrpc/sec_null.c | 16 +-
drivers/staging/lustre/lustre/ptlrpc/sec_plain.c | 28 +--
drivers/staging/lustre/lustre/ptlrpc/service.c | 16 +-
drivers/staging/rtl8192e/rtllib_rx.c | 8 +-
drivers/staging/rtl8192e/rtllib_tx.c | 4 +-
.../staging/rtl8192u/ieee80211/ieee80211_crypt.c | 2 +-
.../staging/rtl8192u/ieee80211/ieee80211_crypt.h | 3 +-
drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c | 8 +-
drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c | 4 +-
drivers/staging/vme/devices/vme_user.c | 10 +-
drivers/target/target_core_iblock.c | 12 +-
drivers/target/target_core_iblock.h | 3 +-
drivers/target/target_core_pr.c | 10 +-
drivers/target/tcm_fc/tfc_sess.c | 2 +-
drivers/tty/serial/dz.c | 31 +--
drivers/tty/serial/sb1250-duart.c | 18 +-
drivers/usb/gadget/function/f_fs.c | 10 +-
drivers/usb/gadget/function/u_fs.h | 3 +-
drivers/usb/gadget/legacy/inode.c | 17 +-
drivers/usb/mon/mon_main.c | 2 +-
drivers/xen/gntdev.c | 11 +-
fs/afs/cell.c | 20 +-
fs/afs/internal.h | 18 +-
fs/afs/proc.c | 6 +-
fs/afs/server.c | 20 +-
fs/afs/vlocation.c | 16 +-
fs/afs/volume.c | 6 +-
fs/btrfs/backref.c | 2 +-
fs/btrfs/compression.c | 18 +-
fs/btrfs/ctree.c | 2 +-
fs/btrfs/ctree.h | 7 +-
fs/btrfs/delayed-inode.c | 46 ++--
fs/btrfs/delayed-inode.h | 5 +-
fs/btrfs/delayed-ref.c | 8 +-
fs/btrfs/delayed-ref.h | 8 +-
fs/btrfs/disk-io.c | 14 +-
fs/btrfs/disk-io.h | 4 +-
fs/btrfs/extent-tree.c | 28 +--
fs/btrfs/extent_io.c | 91 ++++---
fs/btrfs/extent_io.h | 9 +-
fs/btrfs/extent_map.c | 10 +-
fs/btrfs/extent_map.h | 3 +-
fs/btrfs/free-space-cache.c | 4 +-
fs/btrfs/ordered-data.c | 20 +-
fs/btrfs/ordered-data.h | 2 +-
fs/btrfs/raid56.c | 19 +-
fs/btrfs/scrub.c | 42 ++--
fs/btrfs/transaction.c | 20 +-
fs/btrfs/transaction.h | 3 +-
fs/btrfs/tree-log.c | 2 +-
fs/btrfs/volumes.c | 12 +-
fs/btrfs/volumes.h | 2 +-
fs/cachefiles/bind.c | 2 +-
fs/cachefiles/interface.c | 18 +-
fs/cachefiles/internal.h | 3 +-
fs/cachefiles/namei.c | 2 +-
fs/cachefiles/rdwr.c | 2 +-
fs/ceph/caps.c | 4 +-
fs/ceph/file.c | 7 +-
fs/ceph/mds_client.c | 20 +-
fs/ceph/mds_client.h | 5 +-
fs/ceph/snap.c | 2 +-
fs/ceph/super.h | 5 +-
fs/cifs/cifsfs.c | 2 +-
fs/cifs/cifsglob.h | 5 +-
fs/cifs/connect.c | 4 +-
fs/cifs/inode.c | 2 +-
fs/coredump.c | 2 +-
fs/devpts/inode.c | 2 +-
fs/exec.c | 4 +-
fs/exofs/sys.c | 2 +-
fs/f2fs/acl.c | 2 +-
fs/fscache/cache.c | 8 +-
fs/fscache/operation.c | 38 +--
fs/fscache/page.c | 2 +-
fs/fuse/dev.c | 10 +-
fs/fuse/file.c | 8 +-
fs/fuse/fuse_i.h | 9 +-
fs/fuse/inode.c | 6 +-
fs/gfs2/super.c | 2 +-
fs/hfs/bnode.c | 14 +-
fs/hfs/btree.c | 4 +-
fs/hfs/btree.h | 3 +-
fs/hfs/inode.c | 4 +-
fs/hfsplus/bnode.c | 14 +-
fs/hfsplus/btree.c | 4 +-
fs/hfsplus/dir.c | 4 +-
fs/hfsplus/hfsplus_fs.h | 5 +-
fs/hfsplus/inode.c | 10 +-
fs/hfsplus/super.c | 2 +-
fs/inode.c | 3 +-
fs/kernfs/dir.c | 10 +-
fs/kernfs/mount.c | 2 +-
fs/lockd/clntproc.c | 14 +-
fs/lockd/host.c | 16 +-
fs/lockd/mon.c | 14 +-
fs/lockd/svcproc.c | 2 +-
fs/mbcache.c | 16 +-
fs/mount.h | 5 +-
fs/namespace.c | 8 +-
fs/ncpfs/sock.c | 9 +-
fs/nfs/cache_lib.c | 6 +-
fs/nfs/cache_lib.h | 2 +-
fs/nfs/client.c | 12 +-
fs/nfs/dir.c | 8 +-
fs/nfs/filelayout/filelayout.c | 12 +-
fs/nfs/flexfilelayout/flexfilelayout.c | 20 +-
fs/nfs/flexfilelayout/flexfilelayout.h | 3 +-
fs/nfs/inode.c | 12 +-
fs/nfs/nfs4_fs.h | 7 +-
fs/nfs/nfs4client.c | 16 +-
fs/nfs/nfs4proc.c | 26 +-
fs/nfs/nfs4state.c | 36 +--
fs/nfs/pnfs.c | 32 +--
fs/nfs/pnfs.h | 9 +-
fs/nfs/pnfs_nfs.c | 10 +-
fs/nfs/super.c | 4 +-
fs/nfsd/nfs4state.c | 72 +++---
fs/nfsd/state.h | 15 +-
fs/nilfs2/the_nilfs.c | 8 +-
fs/nilfs2/the_nilfs.h | 5 +-
fs/notify/group.c | 6 +-
fs/notify/inotify/inotify_user.c | 4 +-
fs/notify/mark.c | 6 +-
fs/ntfs/inode.c | 6 +-
fs/ntfs/inode.h | 4 +-
fs/ntfs/mft.c | 36 +--
fs/ocfs2/cluster/netdebug.c | 2 +-
fs/ocfs2/cluster/tcp.c | 2 +-
fs/ocfs2/dlm/dlmdebug.c | 12 +-
fs/ocfs2/dlm/dlmdomain.c | 2 +-
fs/ocfs2/dlm/dlmmaster.c | 8 +-
fs/ocfs2/dlm/dlmunlock.c | 2 +-
fs/ocfs2/filecheck.c | 17 +-
fs/orangefs/namei.c | 4 +-
fs/posix_acl.c | 6 +-
fs/proc/base.c | 10 +-
fs/proc/generic.c | 4 +-
fs/proc/internal.h | 5 +-
fs/proc/root.c | 2 +-
fs/proc/task_mmu.c | 4 +-
fs/proc/task_nommu.c | 2 +-
fs/super.c | 10 +-
fs/userfaultfd.c | 11 +-
fs/xfs/xfs_bmap_item.c | 4 +-
fs/xfs/xfs_bmap_item.h | 4 +-
fs/xfs/xfs_buf.c | 34 +--
fs/xfs/xfs_buf.h | 7 +-
fs/xfs/xfs_buf_item.c | 16 +-
fs/xfs/xfs_buf_item.h | 4 +-
fs/xfs/xfs_extfree_item.c | 4 +-
fs/xfs/xfs_extfree_item.h | 4 +-
fs/xfs/xfs_inode.c | 2 +-
fs/xfs/xfs_inode.h | 2 +-
fs/xfs/xfs_log.c | 37 +--
fs/xfs/xfs_log_priv.h | 6 +-
fs/xfs/xfs_refcount_item.c | 4 +-
fs/xfs/xfs_refcount_item.h | 4 +-
fs/xfs/xfs_rmap_item.c | 4 +-
fs/xfs/xfs_rmap_item.h | 4 +-
fs/xfs/xfs_trace.h | 10 +-
fs/xfs/xfs_trans_buf.c | 32 +--
include/drm/drm_framebuffer.h | 2 +-
include/drm/ttm/ttm_bo_api.h | 15 +-
include/drm/ttm/ttm_bo_driver.h | 4 +-
include/linux/atmdev.h | 9 +-
include/linux/backing-dev-defs.h | 3 +-
include/linux/backing-dev.h | 4 +-
include/linux/bio.h | 4 +-
include/linux/blk-cgroup.h | 11 +-
include/linux/blk_types.h | 3 +-
include/linux/blkdev.h | 3 +-
include/linux/ceph/libceph.h | 3 +-
include/linux/ceph/osd_client.h | 3 +-
include/linux/ceph/pagelist.h | 6 +-
include/linux/cgroup-defs.h | 3 +-
include/linux/cgroup.h | 7 +-
include/linux/connector.h | 4 +-
include/linux/cred.h | 13 +-
include/linux/filter.h | 3 +-
include/linux/fs.h | 3 +-
include/linux/fscache-cache.h | 7 +-
include/linux/fsnotify_backend.h | 5 +-
include/linux/igmp.h | 3 +-
include/linux/inetdevice.h | 11 +-
include/linux/init_task.h | 7 +-
include/linux/iocontext.h | 7 +-
include/linux/ipc_namespace.h | 5 +-
include/linux/kernfs.h | 3 +-
include/linux/key.h | 5 +-
include/linux/kref.h | 73 +++---
include/linux/kvm_host.h | 3 +-
include/linux/lockd/lockd.h | 9 +-
include/linux/mbcache.h | 6 +-
include/linux/mlx4/device.h | 8 +-
include/linux/mlx5/cq.h | 4 +-
include/linux/mlx5/driver.h | 5 +-
include/linux/mm_types.h | 5 +-
include/linux/netpoll.h | 3 +-
include/linux/nfs_fs.h | 3 +-
include/linux/nfs_fs_sb.h | 5 +-
include/linux/nsproxy.h | 6 +-
include/linux/perf_event.h | 3 +-
include/linux/posix_acl.h | 7 +-
include/linux/refcount.h | 262 +++++++++++++++++++++
include/linux/rmap.h | 7 +-
include/linux/sched.h | 25 +-
include/linux/skbuff.h | 23 +-
include/linux/sunrpc/auth.h | 10 +-
include/linux/sunrpc/auth_gss.h | 3 +-
include/linux/sunrpc/cache.h | 2 +-
include/media/videobuf2-memops.h | 3 +-
include/net/addrconf.h | 14 +-
include/net/af_unix.h | 3 +-
include/net/arp.h | 2 +-
include/net/ax25.h | 20 +-
include/net/bluetooth/hci_core.h | 14 +-
include/net/bluetooth/rfcomm.h | 8 +-
include/net/calipso.h | 4 +-
include/net/cipso_ipv4.h | 3 +-
include/net/dn_fib.h | 5 +-
include/net/fib_rules.h | 7 +-
include/net/if_inet6.h | 9 +-
include/net/inet_frag.h | 4 +-
include/net/inet_hashtables.h | 4 +-
include/net/inetpeer.h | 4 +-
include/net/ip_fib.h | 7 +-
include/net/ip_vs.h | 24 +-
include/net/ipv6.h | 7 +-
include/net/ipx.h | 13 +-
include/net/lapb.h | 3 +-
include/net/lib80211.h | 2 +-
include/net/llc.h | 6 +-
include/net/lwtunnel.h | 7 +-
include/net/ndisc.h | 2 +-
include/net/neighbour.h | 15 +-
include/net/net_namespace.h | 3 +-
include/net/netfilter/br_netfilter.h | 2 +-
include/net/netfilter/nf_conntrack_expect.h | 4 +-
include/net/netfilter/nf_conntrack_timeout.h | 3 +-
include/net/netlabel.h | 8 +-
include/net/netrom.h | 13 +-
include/net/request_sock.h | 9 +-
include/net/sch_generic.h | 3 +-
include/net/sctp/auth.h | 5 +-
include/net/sctp/structs.h | 8 +-
include/net/sock.h | 25 +-
include/net/vxlan.h | 2 +-
include/net/x25.h | 15 +-
include/net/xfrm.h | 21 +-
include/rdma/ib_addr.h | 3 +-
include/rdma/ib_verbs.h | 15 +-
include/rdma/rdmavt_mr.h | 6 +-
include/rdma/rdmavt_qp.h | 6 +-
include/scsi/libfc.h | 5 +-
include/scsi/libiscsi.h | 3 +-
include/trace/events/bcache.h | 2 +-
include/trace/events/btrfs.h | 6 +-
init/version.c | 2 +-
ipc/msgutil.c | 2 +-
ipc/namespace.c | 4 +-
ipc/sem.c | 8 +-
ipc/util.c | 6 +-
ipc/util.h | 3 +-
kernel/audit_tree.c | 10 +-
kernel/audit_watch.c | 8 +-
kernel/cgroup.c | 23 +-
kernel/cred.c | 46 ++--
kernel/events/core.c | 16 +-
kernel/events/internal.h | 5 +-
kernel/events/ring_buffer.c | 8 +-
kernel/events/uprobes.c | 13 +-
kernel/exit.c | 4 +-
kernel/fork.c | 40 ++--
kernel/futex.c | 17 +-
kernel/groups.c | 2 +-
kernel/kcov.c | 9 +-
kernel/nsproxy.c | 6 +-
kernel/pid.c | 2 +-
kernel/sched/core.c | 7 +-
kernel/sched/fair.c | 8 +-
kernel/user.c | 8 +-
lib/is_single_threaded.c | 2 +-
mm/backing-dev.c | 11 +-
mm/debug.c | 2 +-
mm/huge_memory.c | 16 +-
mm/init-mm.c | 4 +-
mm/khugepaged.c | 4 +-
mm/kmemleak.c | 16 +-
mm/ksm.c | 4 +-
mm/memory.c | 2 +-
mm/mmu_context.c | 2 +-
mm/mmu_notifier.c | 12 +-
mm/mprotect.c | 2 +-
mm/oom_kill.c | 6 +-
mm/rmap.c | 14 +-
mm/swapfile.c | 14 +-
mm/vmacache.c | 2 +-
mm/zpool.c | 4 +-
net/atm/br2684.c | 2 +-
net/atm/clip.c | 8 +-
net/atm/common.c | 10 +-
net/atm/lec.c | 11 +-
net/atm/lec_arpc.h | 2 +-
net/atm/mpc.c | 4 +-
net/atm/mpoa_caches.c | 26 +-
net/atm/mpoa_caches.h | 5 +-
net/atm/pppoatm.c | 2 +-
net/atm/proc.c | 4 +-
net/atm/raw.c | 2 +-
net/atm/resources.c | 2 +-
net/atm/signaling.c | 2 +-
net/ax25/af_ax25.c | 2 +-
net/ax25/ax25_route.c | 2 +-
net/ax25/ax25_uid.c | 2 +-
net/bluetooth/6lowpan.c | 2 +-
net/bluetooth/a2mp.c | 4 +-
net/bluetooth/af_bluetooth.c | 2 +-
net/bluetooth/amp.c | 4 +-
net/bluetooth/hci_conn.c | 4 +-
net/bluetooth/l2cap_core.c | 4 +-
net/bluetooth/rfcomm/core.c | 4 +-
net/bluetooth/rfcomm/sock.c | 2 +-
net/bridge/br_netfilter_hooks.c | 4 +-
net/bridge/br_private.h | 3 +-
net/bridge/br_vlan.c | 8 +-
net/caif/caif_socket.c | 2 +-
net/ceph/messenger.c | 4 +-
net/ceph/osd_client.c | 26 +-
net/ceph/pagelist.c | 2 +-
net/ceph/snapshot.c | 6 +-
net/core/datagram.c | 10 +-
net/core/dev.c | 10 +-
net/core/dst.c | 7 +-
net/core/fib_rules.c | 4 +-
net/core/filter.c | 6 +-
net/core/neighbour.c | 22 +-
net/core/net-sysfs.c | 2 +-
net/core/net_namespace.c | 4 +-
net/core/netpoll.c | 10 +-
net/core/pktgen.c | 16 +-
net/core/rtnetlink.c | 2 +-
net/core/skbuff.c | 34 +--
net/core/sock.c | 30 +--
net/dccp/ipv6.c | 2 +-
net/decnet/dn_fib.c | 6 +-
net/decnet/dn_neigh.c | 2 +-
net/ipv4/af_inet.c | 2 +-
net/ipv4/cipso_ipv4.c | 16 +-
net/ipv4/devinet.c | 2 +-
net/ipv4/fib_semantics.c | 2 +-
net/ipv4/fib_trie.c | 2 +-
net/ipv4/igmp.c | 10 +-
net/ipv4/inet_connection_sock.c | 2 +-
net/ipv4/inet_fragment.c | 14 +-
net/ipv4/inet_hashtables.c | 4 +-
net/ipv4/inet_timewait_sock.c | 8 +-
net/ipv4/inetpeer.c | 18 +-
net/ipv4/ip_fragment.c | 2 +-
net/ipv4/ip_output.c | 6 +-
net/ipv4/netfilter/ipt_CLUSTERIP.c | 19 +-
net/ipv4/ping.c | 4 +-
net/ipv4/raw.c | 2 +-
net/ipv4/syncookies.c | 2 +-
net/ipv4/tcp.c | 4 +-
net/ipv4/tcp_fastopen.c | 2 +-
net/ipv4/tcp_ipv4.c | 4 +-
net/ipv4/tcp_offload.c | 2 +-
net/ipv4/tcp_output.c | 13 +-
net/ipv4/udp.c | 6 +-
net/ipv4/udp_diag.c | 4 +-
net/ipv6/addrconf.c | 4 +-
net/ipv6/addrlabel.c | 9 +-
net/ipv6/anycast.c | 6 +-
net/ipv6/calipso.c | 16 +-
net/ipv6/datagram.c | 2 +-
net/ipv6/exthdrs.c | 4 +-
net/ipv6/inet6_hashtables.c | 4 +-
net/ipv6/ip6_output.c | 4 +-
net/ipv6/ipv6_sockglue.c | 2 +-
net/ipv6/mcast.c | 18 +-
net/ipv6/syncookies.c | 2 +-
net/ipv6/tcp_ipv6.c | 6 +-
net/ipv6/udp.c | 2 +-
net/ipv6/xfrm6_input.c | 2 +-
net/ipv6/xfrm6_tunnel.c | 8 +-
net/ipx/af_ipx.c | 6 +-
net/ipx/ipx_proc.c | 2 +-
net/ipx/ipx_route.c | 2 +-
net/kcm/kcmproc.c | 2 +-
net/key/af_key.c | 10 +-
net/l2tp/l2tp_core.c | 12 +-
net/l2tp/l2tp_core.h | 13 +-
net/l2tp/l2tp_debugfs.c | 6 +-
net/l2tp/l2tp_ppp.c | 2 +-
net/lapb/lapb_iface.c | 6 +-
net/llc/llc_conn.c | 8 +-
net/llc/llc_core.c | 2 +-
net/llc/llc_sap.c | 2 +-
net/netfilter/ipset/ip_set_hash_gen.h | 19 +-
net/netfilter/ipvs/ip_vs_conn.c | 24 +-
net/netfilter/ipvs/ip_vs_core.c | 4 +-
net/netfilter/ipvs/ip_vs_ctl.c | 24 +-
net/netfilter/ipvs/ip_vs_dh.c | 2 +-
net/netfilter/ipvs/ip_vs_fo.c | 2 +-
net/netfilter/ipvs/ip_vs_lblc.c | 4 +-
net/netfilter/ipvs/ip_vs_lblcr.c | 8 +-
net/netfilter/ipvs/ip_vs_lc.c | 2 +-
net/netfilter/ipvs/ip_vs_nq.c | 4 +-
net/netfilter/ipvs/ip_vs_ovf.c | 2 +-
net/netfilter/ipvs/ip_vs_pe_sip.c | 2 +-
net/netfilter/ipvs/ip_vs_proto_sctp.c | 2 +-
net/netfilter/ipvs/ip_vs_proto_tcp.c | 2 +-
net/netfilter/ipvs/ip_vs_rr.c | 4 +-
net/netfilter/ipvs/ip_vs_sed.c | 4 +-
net/netfilter/ipvs/ip_vs_sh.c | 2 +-
net/netfilter/ipvs/ip_vs_wlc.c | 4 +-
net/netfilter/ipvs/ip_vs_wrr.c | 4 +-
net/netfilter/ipvs/ip_vs_xmit.c | 4 +-
net/netfilter/nf_conntrack_core.c | 26 +-
net/netfilter/nf_conntrack_expect.c | 12 +-
net/netfilter/nf_conntrack_netlink.c | 10 +-
net/netfilter/nf_conntrack_standalone.c | 4 +-
net/netfilter/nfnetlink_acct.c | 15 +-
net/netfilter/nfnetlink_cttimeout.c | 12 +-
net/netfilter/nfnetlink_log.c | 14 +-
net/netfilter/nft_ct.c | 2 +-
net/netfilter/xt_CT.c | 2 +-
net/netfilter/xt_TPROXY.c | 4 +-
net/netlink/af_netlink.c | 14 +-
net/netrom/nr_route.c | 6 +-
net/packet/af_packet.c | 14 +-
net/packet/internal.h | 4 +-
net/phonet/socket.c | 4 +-
net/rds/ib.c | 12 +-
net/rds/ib.h | 2 +-
net/rds/ib_rdma.c | 4 +-
net/rds/message.c | 12 +-
net/rds/rdma.c | 10 +-
net/rds/rds.h | 9 +-
net/rds/recv.c | 12 +-
net/rds/tcp_send.c | 2 +-
net/rxrpc/af_rxrpc.c | 6 +-
net/rxrpc/skbuff.c | 12 +-
net/sched/em_meta.c | 2 +-
net/sched/sch_api.c | 8 +-
net/sched/sch_atm.c | 2 +-
net/sched/sch_generic.c | 8 +-
net/sctp/associola.c | 6 +-
net/sctp/auth.c | 4 +-
net/sctp/chunk.c | 6 +-
net/sctp/endpointola.c | 6 +-
net/sctp/output.c | 2 +-
net/sctp/outqueue.c | 2 +-
net/sctp/proc.c | 2 +-
net/sctp/sm_make_chunk.c | 6 +-
net/sctp/socket.c | 6 +-
net/sctp/transport.c | 8 +-
net/sunrpc/auth.c | 14 +-
net/sunrpc/auth_generic.c | 2 +-
net/sunrpc/auth_gss/auth_gss.c | 33 +--
net/sunrpc/auth_null.c | 6 +-
net/sunrpc/auth_unix.c | 4 +-
net/sunrpc/cache.c | 2 +-
net/sunrpc/svc_xprt.c | 6 +-
net/sunrpc/svcauth.c | 15 +-
net/sunrpc/xprtrdma/svc_rdma_transport.c | 4 +-
net/tipc/socket.c | 2 +-
net/unix/af_unix.c | 16 +-
net/wireless/lib80211.c | 2 +-
net/x25/x25_link.c | 2 +-
net/x25/x25_route.c | 2 +-
net/xfrm/xfrm_input.c | 4 +-
net/xfrm/xfrm_policy.c | 4 +-
net/xfrm/xfrm_state.c | 4 +-
security/apparmor/include/apparmor.h | 6 -
security/apparmor/include/policy.h | 4 +-
security/keys/gc.c | 2 +-
security/keys/internal.h | 3 +-
security/keys/key.c | 12 +-
security/keys/keyring.c | 8 +-
security/keys/proc.c | 4 +-
security/keys/process_keys.c | 2 +-
security/keys/request_key_auth.c | 2 +-
security/selinux/hooks.c | 9 +-
security/selinux/include/xfrm.h | 5 +-
security/selinux/xfrm.c | 11 +-
security/tomoyo/common.c | 11 +-
sound/core/seq/seq_clientmgr.c | 2 +-
sound/core/seq/seq_ports.c | 8 +-
sound/core/seq/seq_ports.h | 3 +-
sound/usb/card.c | 10 +-
sound/usb/usbaudio.h | 4 +-
tools/perf/util/cgroup.c | 6 +-
tools/perf/util/cgroup.h | 4 +-
tools/perf/util/comm.c | 10 +-
tools/perf/util/cpumap.c | 16 +-
tools/perf/util/cpumap.h | 4 +-
tools/perf/util/dso.c | 6 +-
tools/perf/util/dso.h | 4 +-
tools/perf/util/evlist.c | 18 +-
tools/perf/util/evlist.h | 4 +-
tools/perf/util/map.c | 10 +-
tools/perf/util/map.h | 10 +-
tools/perf/util/thread.c | 6 +-
tools/perf/util/thread.h | 4 +-
tools/perf/util/thread_map.c | 20 +-
tools/perf/util/thread_map.h | 4 +-
virt/kvm/async_pf.c | 2 +-
virt/kvm/kvm_main.c | 10 +-
779 files changed, 3756 insertions(+), 3307 deletions(-)
create mode 100644 include/linux/refcount.h
--
2.7.4
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