Commit Graph

1638 Commits

Author SHA1 Message Date
Linus Torvalds
90a3c48fbf Merge tag 'usb-3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
 "Here are some USB and PHY fixes for 3.17-rc5.

  Nothing major here, just a number of tiny fixes for reported issues,
  and some new device ids as well.

  All have been tested in linux-next"

* tag 'usb-3.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (46 commits)
  xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices
  usb: xhci: Fix OOPS in xhci error handling code
  xhci: Fix null pointer dereference if xhci initialization fails
  storage: Add single-LUN quirk for Jaz USB Adapter
  uas: Add missing le16_to_cpu calls to asm1051 / asm1053 usb-id check
  usb: chipidea: msm: Initialize PHY on reset event
  usb: chipidea: msm: Use USB PHY API to control PHY state
  usb: hub: take hub->hdev reference when processing from eventlist
  uas: Disable uas on ASM1051 devices
  usb: dwc2/gadget: avoid disabling ep0
  usb: dwc2/gadget: delay enabling irq once hardware is configured properly
  usb: dwc2/gadget: do not call disconnect method in pullup
  usb: dwc2/gadget: break infinite loop in endpoint disable code
  usb: dwc2/gadget: fix phy initialization sequence
  usb: dwc2/gadget: fix phy disable sequence
  uwb: init beacon cache entry before registering uwb device
  USB: ftdi_sio: Add support for GE Healthcare Nemo Tracker device
  USB: document the 'u' flag for usb-storage quirks parameter
  usb: host: xhci: fix compliance mode workaround
  usb: dwc3: fix TRB completion when multiple TRBs are started
  ...
2014-09-12 11:59:10 -07:00
Linus Torvalds
c8c16e3624 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "An update to Synaptics PS/2 driver to handle "ForcePads" (currently
  found in HP EliteBook 1040 laptops), a change for Elan PS/2 driver to
  detect newer touchpads, bunch of devices get annotated as Trackpoint
  and/or Pointer to help userspace classify and handle them, plus
  assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: serport - add compat handling for SPIOCSTYPE ioctl
  Input: atmel_mxt_ts - fix double free of input device
  Input: synaptics - add support for ForcePads
  Input: matrix_keypad - use request_any_context_irq()
  Input: atmel_mxt_ts - downgrade warning about empty interrupts
  Input: wm971x - fix typo in module parameter description
  Input: cap1106 - fix register definition
  Input: add missing POINTER / DIRECT properties to a bunch of drivers
  Input: add INPUT_PROP_POINTING_STICK property
  Input: elantech - fix detection of touchpad on ASUS s301l
2014-09-11 10:08:36 -07:00
David Drysdale
b01d072065 shm: add memfd.h to UAPI export list
The new header file memfd.h from commit 9183df25fe ("shm: add
memfd_create() syscall") should be exported.

Signed-off-by: David Drysdale <drysdale@google.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-10 15:42:12 -07:00
Hans de Goede
7611392fe8 Input: add INPUT_PROP_POINTING_STICK property
It is useful for userspace to know that there not dealing with a regular
mouse but rather with a pointing stick (e.g. a trackpoint) so that
userspace can e.g. automatically enable middle button scrollwheel
emulation.

It is impossible to tell the difference from the evdev info without
resorting to putting a list of device / driver names in userspace, this is
undesirable.

Add a property which allows userspace to see if a device is a pointing
stick, and set it on all the pointing stick drivers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-09-08 14:58:11 -07:00
Piotr Król
6fa9e1be7f usb: usbip: fix usbip.h path in userspace tool
Fixes: 588b48caf6 ("usbip: move usbip userspace code out of staging")
which introduced build failure by not changing uapi/usbip.h include path
according to new location.

Signed-off-by: Piotr Król <piotr.krol@3mdeb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-04 16:25:30 -07:00
Linus Torvalds
10f3291a1d Merge branch 'akpm' (fixes from Andrew Morton)
Merge patches from Andrew Morton:
 "22 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
  kexec: purgatory: add clean-up for purgatory directory
  Documentation/kdump/kdump.txt: add ARM description
  flush_icache_range: export symbol to fix build errors
  tools: selftests: fix build issue with make kselftests target
  ocfs2: quorum: add a log for node not fenced
  ocfs2: o2net: set tcp user timeout to max value
  ocfs2: o2net: don't shutdown connection when idle timeout
  ocfs2: do not write error flag to user structure we cannot copy from/to
  x86/purgatory: use approprate -m64/-32 build flag for arch/x86/purgatory
  drivers/rtc/rtc-s5m.c: re-add support for devices without irq specified
  xattr: fix check for simultaneous glibc header inclusion
  kexec: remove CONFIG_KEXEC dependency on crypto
  kexec: create a new config option CONFIG_KEXEC_FILE for new syscall
  x86,mm: fix pte_special versus pte_numa
  hugetlb_cgroup: use lockdep_assert_held rather than spin_is_locked
  mm/zpool: use prefixed module loading
  zram: fix incorrect stat with failed_reads
  lib: turn CONFIG_STACKTRACE into an actual option.
  mm: actually clear pmd_numa before invalidating
  memblock, memhotplug: fix wrong type in memblock_find_in_range_node().
  ...
2014-08-29 16:28:29 -07:00
Filipe Brandenburger
bfcfd44cce xattr: fix check for simultaneous glibc header inclusion
The guard was introduced in commit ea1a8217b0 ("xattr: guard against
simultaneous glibc header inclusion") but it is using #ifdef to check
for a define that is either set to 1 or 0.  Fix it to use #if instead.

* Without this patch:

  $ { echo "#include <sys/xattr.h>"; echo "#include <linux/xattr.h>"; } | gcc -E -Iinclude/uapi - >/dev/null
  include/uapi/linux/xattr.h:19:0: warning: "XATTR_CREATE" redefined [enabled by default]
   #define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
   ^
  /usr/include/x86_64-linux-gnu/sys/xattr.h:32:0: note: this is the location of the previous definition
   #define XATTR_CREATE XATTR_CREATE
   ^

* With this patch:

  $ { echo "#include <sys/xattr.h>"; echo "#include <linux/xattr.h>"; } | gcc -E -Iinclude/uapi - >/dev/null
  (no warnings)

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Cc: Allan McRae <allan@archlinux.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-29 16:28:16 -07:00
Linus Torvalds
848298c6fb Merge tag 'usb-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
 "Here are a bunch of fixes for the USB drivers for 3.17-rc3.

  Also in here is the movement of the usbip driver out of staging, into
  the "real" part of the kernel, it had to wait until after -rc1 to
  handle the merge issues involved between the USB and staging trees.
  The code is identical, just file movements there.

  The USB fixes are all over the place, new device ids, xhci fixes for
  reported issues and the usual gadget driver fixes as well.  All have
  been in linux-next for a while now"

* tag 'usb-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (46 commits)
  USB: fix build error with CONFIG_PM_RUNTIME disabled
  Revert "usb: ehci/ohci-exynos: Fix PHY getting sequence"
  xhci: Disable streams on Via XHCI with device-id 0x3432
  USB: serial: fix potential heap buffer overflow
  USB: serial: fix potential stack buffer overflow
  usb: ehci/ohci-exynos: Fix PHY getting sequence
  usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
  USB: sisusb: add device id for Magic Control USB video
  usb: dwc2: gadget: Set the default EP max packet value as 8 bytes
  usb: ehci: using wIndex + 1 for hub port
  USB: storage: add quirk for Newer Technology uSCSI SCSI-USB converter
  MAINTAINERS: Add an entry for USB/IP driver
  usbip: remove struct usb_device_id table
  usbip: move usbip kernel code out of staging
  usbip: move usbip userspace code out of staging
  USB: whiteheat: Added bounds checking for bulk command response
  usb: gadget: remove $(PWD) in ccflags-y
  usb: pch_udc: usb gadget device support for Intel Quark X1000
  usb: gadget: uvc: fix possible lockup in uvc gadget
  usb: wusbcore: fix below build warning
  ...
2014-08-29 12:10:03 -07:00
Valentina Manea
96c2737716 usbip: move usbip kernel code out of staging
At this point, USB/IP kernel code is fully functional
and can be moved out of staging.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-25 10:40:06 -07:00
Linus Torvalds
5e30ca1e44 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Intel and radeon fixes.

  Post KS/LC git requests from i915 and radeon stacked up.  They are all
  fixes along with some new pci ids for radeon, and one maintainers file
  entry.

   - i915: display fixes and irq fixes
   - radeon: pci ids, and misc gpuvm, dpm and hdp cache"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits)
  MAINTAINERS: Add entry for Renesas DRM drivers
  drm/radeon: add additional SI pci ids
  drm/radeon: add new bonaire pci ids
  drm/radeon: add new KV pci id
  Revert "drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe"
  drm/radeon: fix active_cu mask on SI and CIK after re-init (v3)
  drm/radeon: fix active cu count for SI and CIK
  drm/radeon: re-enable selective GPUVM flushing
  drm/radeon: Sync ME and PFP after CP semaphore waits v4
  drm/radeon: fix display handling in radeon_gpu_reset
  drm/radeon: fix pm handling in radeon_gpu_reset
  drm/radeon: Only flush HDP cache for indirect buffers from userspace
  drm/radeon: properly document reloc priority mask
  drm/i915: don't try to retrain a DP link on an inactive CRTC
  drm/i915: make sure VDD is turned off during system suspend
  drm/i915: cancel hotplug and dig_port work during suspend and unload
  drm/i915: fix HPD IRQ reenable work cancelation
  drm/i915: take display port power domain in DP HPD handler
  drm/i915: Don't try to enable cursor from setplane when crtc is disabled
  drm/i915: Skip load detect when intel_crtc->new_enable==true
  ...
2014-08-24 15:48:12 -07:00
Christian König
701e1e7891 drm/radeon: properly document reloc priority mask
Instead of hard coding the value properly document
that this is an userspace interface.

No intended functional change.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2014-08-18 17:09:43 -04:00
Will Deacon
503e6636b6 asm-generic: add memfd_create system call to unistd.h
Commit 9183df25fe ("shm: add memfd_create() syscall") added a new
system call (memfd_create) but didn't update the asm-generic unistd
header.

This patch adds the new system call to the asm-generic version of
unistd.h so that it can be used by architectures such as arm64.

Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-08-18 19:47:04 +01:00
Linus Torvalds
e3b1fd56f1 Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma updates from Roland Dreier:
 "Main set of InfiniBand/RDMA updates for 3.17 merge window:

   - MR reregistration support
   - MAD support for RMPP in userspace
   - iSER and SRP initiator updates
   - ocrdma hardware driver updates
   - other fixes..."

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits)
  IB/srp: Fix return value check in srp_init_module()
  RDMA/ocrdma: report asic-id in query device
  RDMA/ocrdma: Update sli data structure for endianness
  RDMA/ocrdma: Obtain SL from device structure
  RDMA/uapi: Include socket.h in rdma_user_cm.h
  IB/srpt: Handle GID change events
  IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0]
  IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0]
  RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf()
  IPoIB: Remove unnecessary test for NULL before debugfs_remove()
  IB/mad: Add user space RMPP support
  IB/mad: add new ioctl to ABI to support new registration options
  IB/mad: Add dev_notice messages for various umad/mad registration failures
  IB/mad: Update module to [pr|dev]_* style print messages
  IB/ipoib: Avoid multicast join attempts with invalid P_key
  IB/umad: Update module to [pr|dev]_* style print messages
  IB/ipoib: Avoid flushing the workqueue from worker context
  IB/ipoib: Use P_Key change event instead of P_Key polling mechanism
  IB/ipath: Add P_Key change event support
  mlx4_core: Add support for secure-host and SMP firewall
  ...
2014-08-14 11:09:05 -06:00
Roland Dreier
d087f6ad72 Merge branches 'core', 'cxgb4', 'ipoib', 'iser', 'iwcm', 'mad', 'misc', 'mlx4', 'mlx5', 'ocrdma' and 'srp' into for-next 2014-08-14 08:58:04 -07:00
Linus Torvalds
d429a3639c Merge branch 'for-3.17/drivers' of git://git.kernel.dk/linux-block
Pull block driver changes from Jens Axboe:
 "Nothing out of the ordinary here, this pull request contains:

   - A big round of fixes for bcache from Kent Overstreet, Slava Pestov,
     and Surbhi Palande.  No new features, just a lot of fixes.

   - The usual round of drbd updates from Andreas Gruenbacher, Lars
     Ellenberg, and Philipp Reisner.

   - virtio_blk was converted to blk-mq back in 3.13, but now Ming Lei
     has taken it one step further and added support for actually using
     more than one queue.

   - Addition of an explicit SG_FLAG_Q_AT_HEAD for block/bsg, to
     compliment the the default behavior of adding to the tail of the
     queue.  From Douglas Gilbert"

* 'for-3.17/drivers' of git://git.kernel.dk/linux-block: (86 commits)
  bcache: Drop unneeded blk_sync_queue() calls
  bcache: add mutex lock for bch_is_open
  bcache: Correct printing of btree_gc_max_duration_ms
  bcache: try to set b->parent properly
  bcache: fix memory corruption in init error path
  bcache: fix crash with incomplete cache set
  bcache: Fix more early shutdown bugs
  bcache: fix use-after-free in btree_gc_coalesce()
  bcache: Fix an infinite loop in journal replay
  bcache: fix crash in bcache_btree_node_alloc_fail tracepoint
  bcache: bcache_write tracepoint was crashing
  bcache: fix typo in bch_bkey_equal_header
  bcache: Allocate bounce buffers with GFP_NOWAIT
  bcache: Make sure to pass GFP_WAIT to mempool_alloc()
  bcache: fix uninterruptible sleep in writeback thread
  bcache: wait for buckets when allocating new btree root
  bcache: fix crash on shutdown in passthrough mode
  bcache: fix lockdep warnings on shutdown
  bcache allocator: send discards with correct size
  bcache: Fix to remove the rcu_sched stalls.
  ...
2014-08-14 09:10:21 -06:00
Doug Ledford
db1044d458 RDMA/uapi: Include socket.h in rdma_user_cm.h
added struct sockaddr_storage to rdma_user_cm.h without also adding an
include for linux/socket.h to make sure it is defined.  Systemtap
needs the header files to build standalone and cannot rely on other
files to pre-include other headers, so add linux/socket.h to the list
of includes in this file.

Fixes: ee7aed4528 ("RDMA/ucma: Support querying for AF_IB addresses")
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-12 22:03:31 -07:00
Ira Weiny
1471cb6ca6 IB/mad: Add user space RMPP support
Using the new registration mechanism, define a flag that indicates the
user wishes to process RMPP messages in user space rather than have
the kernel process them.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-10 20:36:00 -07:00
Ira Weiny
0f29b46d49 IB/mad: add new ioctl to ABI to support new registration options
Registrations options are specified through flags.  Definitions of flags will
be in subsequent patches.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2014-08-10 20:36:00 -07:00
Linus Torvalds
9138475862 Merge branch 'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6
Pull nouveau drm updates from Ben Skeggs:
 "Apologies for not getting this done in time for Dave's drm-next merge
  window.  As he mentioned, a pre-existing bug reared its head a lot
  more obviously after this lot of changes.  It took quite a bit of time
  to track it down.  In any case, Dave suggested I try my luck by
  sending directly to you this time.

  Overview:

   - more code for Tegra GK20A from NVIDIA - probing, reclockig
   - better fix for Kepler GPUs that have the graphics engine powered
     off on startup, method courtesy of info provided by NVIDIA
   - unhardcoding of a bunch of graphics engine setup on
     Fermi/Kepler/Maxwell, will hopefully solve some issues people have
     noticed on higher-end models
   - support for "Zero Bandwidth Clear" on Fermi/Kepler/Maxwell, needs
     userspace support in general, but some lucky apps will benefit
     automagically
   - reviewed/exposed the full object APIs to userspace (finally), gives
     it access to perfctrs, ZBC controls, various events.  More to come
     in the future.
   - various other fixes"

Acked-by: Dave Airlie <airlied@redhat.com>

* 'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (87 commits)
  drm/nouveau: expose the full object/event interfaces to userspace
  drm/nouveau: fix headless mode
  drm/nouveau: hide sysfs pstate file behind an option again
  drm/nv50/disp: shhh compiler
  drm/gf100-/gr: implement the proper SetShaderExceptions method
  drm/gf100-/gr: remove some broken ltc bashing, for now
  drm/gf100-/gr: unhardcode attribute cb config
  drm/gf100-/gr: fetch tpcs-per-ppc info on startup
  drm/gf100-/gr: unhardcode pagepool config
  drm/gf100-/gr: unhardcode bundle cb config
  drm/gf100-/gr: improve initial context patch list helpers
  drm/gf100-/gr: add support for zero bandwidth clear
  drm/nouveau/ltc: add zbc drivers
  drm/nouveau/ltc: s/ltcg/ltc/ + cleanup
  drm/nouveau: use ram info from nvif_device
  drm/nouveau/disp: implement nvif event sources for vblank/connector notifiers
  drm/nouveau/disp: allow user direct access to channel control registers
  drm/nouveau/disp: audit and version display classes
  drm/nouveau/disp: audit and version SCANOUTPOS method
  drm/nv50-/disp: audit and version PIOR_PWR method
  ...
2014-08-09 17:46:39 -07:00
Ben Skeggs
27111a23d0 drm/nouveau: expose the full object/event interfaces to userspace
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10 05:28:18 +10:00
Ben Skeggs
a4e610b5e6 drm/nouveau: use ioctl interface for abi16 grobj alloc
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10 05:13:17 +10:00
Linus Torvalds
664fb23070 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 - big update to Wacom driver by Benjamin Tissoires, converting it to
   HID infrastructure and unifying USB and Bluetooth models
 - large update to ALPS driver by Hans de Goede, which adds support for
   newer touchpad models as well as cleans up and restructures the code
 - more changes to Atmel MXT driver, including device tree support
 - new driver for iPaq x3xxx touchscreen
 - driver for serial Wacom tablets
 - driver for Microchip's CAP1106
 - assorted cleanups and improvements to existing drover and input core

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (93 commits)
  Input: wacom - update the ABI doc according to latest changes
  Input: wacom - only register once the MODULE_* macros
  Input: HID - remove hid-wacom Bluetooth driver
  Input: wacom - add copyright note and bump version to 2.0
  Input: wacom - remove passing id for wacom_set_report
  Input: wacom - check for bluetooth protocol while setting OLEDs
  Input: wacom - handle Intuos 4 BT in wacom.ko
  Input: wacom - handle Graphire BT tablets in wacom.ko
  Input: wacom - prepare the driver to include BT devices
  Input: hyperv-keyboard - register as a wakeup source
  Input: imx_keypad - remove ifdef round PM methods
  Input: jornada720_ts - get rid of space indentation and use tab
  Input: jornada720_ts - switch to using managed resources
  Input: alps - Rushmore and v7 resolution support
  Input: mcs5000_ts - remove ifdef around power management methods
  Input: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP
  Input: ads7846 - release resources on failure for clean exit
  Input: wacom - add support for 0x12C ISDv4 sensor
  Input: atmel_mxt_ts - use deep sleep mode when stopped
  ARM: dts: am437x-gp-evm: Update binding for touchscreen size
  ...
2014-08-08 17:39:48 -07:00
Linus Torvalds
8065be8d03 Merge branch 'akpm' (second patchbomb from Andrew Morton)
Merge more incoming from Andrew Morton:
 "Two new syscalls:

     memfd_create in "shm: add memfd_create() syscall"
     kexec_file_load in "kexec: implementation of new syscall kexec_file_load"

  And:

   - Most (all?) of the rest of MM

   - Lots of the usual misc bits

   - fs/autofs4

   - drivers/rtc

   - fs/nilfs

   - procfs

   - fork.c, exec.c

   - more in lib/

   - rapidio

   - Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs,
     fs/cramfs, fs/romfs, fs/qnx6.

   - initrd/initramfs work

   - "file sealing" and the memfd_create() syscall, in tmpfs

   - add pci_zalloc_consistent, use it in lots of places

   - MAINTAINERS maintenance

   - kexec feature work"

* emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits)
  MAINTAINERS: update nomadik patterns
  MAINTAINERS: update usb/gadget patterns
  MAINTAINERS: update DMA BUFFER SHARING patterns
  kexec: verify the signature of signed PE bzImage
  kexec: support kexec/kdump on EFI systems
  kexec: support for kexec on panic using new system call
  kexec-bzImage64: support for loading bzImage using 64bit entry
  kexec: load and relocate purgatory at kernel load time
  purgatory: core purgatory functionality
  purgatory/sha256: provide implementation of sha256 in purgaotory context
  kexec: implementation of new syscall kexec_file_load
  kexec: new syscall kexec_file_load() declaration
  kexec: make kexec_segment user buffer pointer a union
  resource: provide new functions to walk through resources
  kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc()
  kexec: move segment verification code in a separate function
  kexec: rename unusebale_pages to unusable_pages
  kernel: build bin2c based on config option CONFIG_BUILD_BIN2C
  bin2c: move bin2c in scripts/basic
  shm: wait for pins to be released when sealing
  ...
2014-08-08 15:57:47 -07:00
Vivek Goyal
cb1052581e kexec: implementation of new syscall kexec_file_load
Previous patch provided the interface definition and this patch prvides
implementation of new syscall.

Previously segment list was prepared in user space.  Now user space just
passes kernel fd, initrd fd and command line and kernel will create a
segment list internally.

This patch contains generic part of the code.  Actual segment preparation
and loading is done by arch and image specific loader.  Which comes in
next patch.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08 15:57:32 -07:00
David Herrmann
9183df25fe shm: add memfd_create() syscall
memfd_create() is similar to mmap(MAP_ANON), but returns a file-descriptor
that you can pass to mmap().  It can support sealing and avoids any
connection to user-visible mount-points.  Thus, it's not subject to quotas
on mounted file-systems, but can be used like malloc()'ed memory, but with
a file-descriptor to it.

memfd_create() returns the raw shmem file, so calls like ftruncate() can
be used to modify the underlying inode.  Also calls like fstat() will
return proper information and mark the file as regular file.  If you want
sealing, you can specify MFD_ALLOW_SEALING.  Otherwise, sealing is not
supported (like on all other regular files).

Compared to O_TMPFILE, it does not require a tmpfs mount-point and is not
subject to a filesystem size limit.  It is still properly accounted to
memcg limits, though, and to the same overcommit or no-overcommit
accounting as all user memory.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ryan Lortie <desrt@desrt.ca>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08 15:57:31 -07:00