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2013-11-05Merge tag 'drm/for-3.13-rc1' of git://anongit.freedesktop.org/tegra/linux ↵Dave Airlie1-9/+20
into drm-next drm/tegra: Changes for v3.13-rc1 The biggest part of the changes is the decoupling of the host1x and DRM drivers followed by the move of Tegra DRM back to drivers/gpu/drm/tegra from whence it came. There is a lot of cleanup as well, and the drivers can now be properly unloaded and reloaded. HDMI support for the Tegra114 SoC was contributed by Mikko Perttunen. gr2d support was extended to Tegra114 and the gr3d driver that has been in the works for quite some time finally made it in. All pieces to run an OpenGL driver on top of an upstream kernel are now available. Support for syncpoint bases was added by Arto Merilainen. This is useful for synchronizing between command streams from different engines such as gr2d and gr3d. Erik Faye-Lund and Wei Yongjun contributed various small fixes. Thanks! * tag 'drm/for-3.13-rc1' of git://anongit.freedesktop.org/tegra/linux: (45 commits) drm/tegra: Reserve syncpoint base for gr3d drm/tegra: Reserve base for gr2d drm/tegra: Deliver syncpoint base to user space gpu: host1x: Add syncpoint base support gpu: host1x: Add 'flags' field to syncpt request drm/tegra: Disable clock on probe failure gpu: host1x: Disable clock on probe failure drm/tegra: Support bottom-up buffer objects drm/tegra: Add support for tiled buffer objects drm/tegra: Add 3D support drm/tegra: Introduce tegra_drm_submit() drm/tegra: Use symbolic names for gr2d registers drm/tegra: Start connectors with correct DPMS mode drm/tegra: hdmi: Enable VDD earlier for hotplug/DDC drm/tegra: hdmi: Fix build warnings drm/tegra: hdmi: Detect DVI-only displays drm/tegra: Add Tegra114 HDMI support drm/tegra: hdmi: Parameterize based on compatible property drm/tegra: hdmi: Rename tegra{2,3} to tegra{20,30} gpu: host1x: Add support for Tegra114 ...
2013-10-31drm/tegra: Deliver syncpoint base to user spaceArto Merilainen1-9/+17
This patch adds a separate ioctl for delivering syncpoint base number to user space. If the syncpoint does not have an associated base, the function returns -ENXIO. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-10-31drm/tegra: Support bottom-up buffer objectsThierry Reding1-1/+2
The gr3d engine renders images bottom-up. Allow buffers that are used for 3D content to be marked as such and implement support in the display controller to present them properly. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-10-31drm/tegra: Add support for tiled buffer objectsThierry Reding1-0/+2
The gr2d and gr3d engines work more efficiently on buffers with a tiled memory layout. Allow created buffers to be marked as tiled so that the display controller can scan them out properly. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-10-22Merge branch 'drm-tda998x-3.12' of ↵Dave Airlie1-0/+45
git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next This adds support for the Armada 510 display subsystem found on the Marvell Dove devices. This IP is re-used across several different Marvell SoCs with various tweaks, and this driver has been structured to allow the other IPs to re-use the bulk of this code; further work in this area is expected from interested parties. This has been extensively tested on the SolidRun Cubox platform and appears to work well there. [airlied: update for api changes merged previous to this]
2013-10-12DRM: Armada: Add Armada DRM driverRussell King1-0/+45
This patch adds support for the pair of LCD controllers on the Marvell Armada 510 SoCs. This driver supports: - multiple contiguous scanout buffers for video and graphics - shm backed cacheable buffer objects for X pixmaps for Vivante GPU acceleration - dual lcd0 and lcd1 crt operation - video overlay on each LCD crt via DRM planes - page flipping of the main scanout buffers - DRM prime for buffer export/import This driver is trivial to extend to other Armada SoCs. Included in this commit is the core driver with no output support; output support is platform and encoder driver dependent. Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-01drm: Reject stereo modes with an unknown layoutDamien Lespiau1-0/+4
The kernel shouldn't accept invalid modes, just say No. Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01drm: Code stereo layouts as an enum rather than a bit fieldDamien Lespiau1-8/+11
This allows us to use fewer bits in the mode structure, leaving room for future work while allowing more stereo layouts types than we could have ever dreamt of. I also exposed the previously private DRM_MODE_FLAG_3D_MASK to set in stone that we are using 5 bits for the stereo layout enum, reserving 32 values. Even with that reservation, we gain 3 bits from the previous encoding. The code adding the mandatory stereo modes needeed to be adapted as it was relying or being able to or stereo layouts together. Suggested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01drm: Add a STEREO_3D capability to the SET_CLIENT_CAP ioctlDamien Lespiau1-0/+9
This capability allows user space to control the delivery of modes with the 3D flags set. This is to not play games with current user space users not knowing anything about stereo 3D flags and that could try to set a mode with one or several of those bits set. So, the plan is to remove the stereo modes from the list of modes we give to DRM clients by default, and let them through if we are being told otherwise. stereo_allowed is bound to the drm_file structure to make it a per-client setting, not a global one. v2: Replace clearing 3D flags by discarding the stereo modes now that they are regular modes. v3: SET_CAP -> SET_CLIENT_CAP rename (Chris Wilson) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01drm: Add HDMI stereo 3D flags to struct drm_mode_modeinfoDamien Lespiau1-14/+22
HDMI 1.4a defines a few layouts that we'd like to expose. This commits add new modeinfo flags that can be used to list the supported stereo layouts (when querying the list of modes) and to set a given stereo 3D mode (when setting a mode). v2: Add a drm_mode_is_stereo() helper Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01drm: Add a SET_CLIENT_CAP ioctlDamien Lespiau1-0/+7
This ioctl can be used to turn some knobs in a DRM driver. The client can ask the DRM core for an alternate view of the reality: it can be useful to be able to instruct the core that the DRM client can handle new functionnality that would otherwise break current ABI. v2: Rename to ioctl from SET_CAP to SET_CLIENT_CAP (Chris Wilson) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01drm: Move the GET_CAP macros next to the corresponding ioctl structureDamien Lespiau1-11/+10
It's a tiny bit more logical to find the different capabilities you can use with the GET_CAP ioctl next to the structure rather than putting them at the end of the file. v2: Tab align the litterals (David Herrmann) v3: Make it clearer that DRM_PRIME_CAP_EXPORT/IMPORT are flags of DRM_CAP_PRIME. v4: Rebase on top of latest bits (DRM_CAP_ASYNC_PAGE_FLIP was introduced) Reviewed-by: David Herrmann <dh.herrmann@gmail.com> (for v2) Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-01Merge tag 'drm-intel-next-2013-09-21-merged' of ↵Dave Airlie2-4/+6
git://people.freedesktop.org/~danvet/drm-intel into drm-next drm-intel-next-2013-09-21: - clock state handling rework from Ville - l3 parity handling fixes for hsw from Ben - some more watermark improvements from Ville - ban badly behaved context from Mika - a few vlv improvements from Jesse - VGA power domain handling from Ville drm-intel-next-2013-09-06: - Basic mipi dsi support from Jani. Not yet converted over to drm_bridge since that was too fresh, but the porting is in progress already. - More vma patches from Ben, this time the code to convert the execbuffer code. Now that the shrinker recursion bug is tracked down we can move ahead here again. Yay! - Optimize hw context switching to not generate needless interrupts (Chris Wilson). Also some shuffling for the oustanding request allocation. - Opregion support for SWSCI, although not yet fully wired up (we need a bit of runtime D3 support for that apparently, due to Windows design deficiencies), from Jani Nikula. - A few smaller changes all over. [airlied: merge conflict fix in i9xx_set_pipeconf] * tag 'drm-intel-next-2013-09-21-merged' of git://people.freedesktop.org/~danvet/drm-intel: (119 commits) drm/i915: assume all GM45 Acer laptops use inverted backlight PWM drm/i915: cleanup a min_t() cast drm/i915: Pull intel_init_power_well() out of intel_modeset_init_hw() drm/i915: Add POWER_DOMAIN_VGA drm/i915: Refactor power well refcount inc/dec operations drm/i915: Add intel_display_power_{get, put} to request power for specific domains drm/i915: Change i915_request power well handling drm/i915: POSTING_READ IPS_CTL before waiting for the vblank drm/i915: don't disable ERR_INT on the IRQ handler drm/i915/vlv: disable rc6p and rc6pp residency reporting on BYT drm/i915/vlv: honor i915_enable_rc6 boot param on VLV drm/i915: s/HAS_L3_GPU_CACHE/HAS_L3_DPF drm/i915: Do remaps for all contexts drm/i915: Keep a list of all contexts drm/i915: Make l3 remapping use the ring drm/i915: Add second slice l3 remapping drm/i915: Fix HSW parity test drm/i915: dump crtc timings from the pipe config drm/i915: register backlight device also when backlight class is a module drm/i915: write D_COMP using the mailbox ... Conflicts: drivers/gpu/drm/i915/intel_display.c
2013-09-29Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-0/+2
Pull drm fixes from Dave Airlie: "Nothing too major, radeon still has some dpm changes for off by default. Radeon, intel, msm: - radeon: a few more dpm fixes (still off by default), uvd fixes - i915: runtime warn backtrace and regression fix - msm: iommu changes fallout" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (27 commits) drm/msm: use drm_gem_dumb_destroy helper drm/msm: deal with mach/iommu.h removal drm/msm: Remove iommu include from mdp4_kms.c drm/msm: Odd PTR_ERR usage drm/i915: Fix up usage of SHRINK_STOP drm/radeon: fix hdmi audio on DCE3.0/3.1 asics drm/i915: preserve pipe A quirk in i9xx_set_pipeconf drm/i915/tv: clear adjusted_mode.flags drm/i915/dp: increase i2c-over-aux retry interval on AUX DEFER drm/radeon/cik: fix overflow in vram fetch drm/radeon: add missing hdmi callbacks for rv6xx drm/i915: Use a temporary va_list for two-pass string handling drm/radeon/uvd: lower msg&fb buffer requirements on UVD3 drm/radeon: disable tests/benchmarks if accel is disabled drm/radeon: don't set default clocks for SI when DPM is disabled drm/radeon/dpm/ci: filter clocks based on voltage/clk dep tables drm/radeon/dpm/si: filter clocks based on voltage/clk dep tables drm/radeon/dpm/ni: filter clocks based on voltage/clk dep tables drm/radeon/dpm/btc: filter clocks based on voltage/clk dep tables drm/radeon/dpm: fetch the max clk from voltage dep tables helper ...
2013-09-28Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie1-0/+2
into drm-fixes More radeon fixes for 3.12. Kind of all over the place: UVD, DPM, tiling, etc. * 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: fix hdmi audio on DCE3.0/3.1 asics drm/radeon/cik: fix overflow in vram fetch drm/radeon: add missing hdmi callbacks for rv6xx drm/radeon/uvd: lower msg&fb buffer requirements on UVD3 drm/radeon: disable tests/benchmarks if accel is disabled drm/radeon: don't set default clocks for SI when DPM is disabled drm/radeon/dpm/ci: filter clocks based on voltage/clk dep tables drm/radeon/dpm/si: filter clocks based on voltage/clk dep tables drm/radeon/dpm/ni: filter clocks based on voltage/clk dep tables drm/radeon/dpm/btc: filter clocks based on voltage/clk dep tables drm/radeon/dpm: fetch the max clk from voltage dep tables helper drm/radeon: fix missed variable sized access drm/radeon: Make r100_cp_ring_info() and radeon_ring_gfx() safe (v2) drm/radeon/cik: Add tiling mode index for 1D tiled depth/stencil surfaces drm/radeon/cik: Fix encoding of number of banks in tiling configuration info drm/radeon/cik: Fix printing of client name on VM protection fault drm/radeon: additional gcc fixes for radeon_atombios.c drm/radeon: avoid UVD corruption on AGP cards using GPU gart
2013-09-24Merge tag 'v3.12-rc2' into drm-intel-nextDaniel Vetter57-145/+1546
Backmerge Linux 3.12-rc2 to prep for a bunch of -next patches: - Header cleanup in intel_drv.h, both changed in -fixes and my current -next pile. - Cursor handling cleanup for -next which depends upon the cursor handling fix merged into -rc2. All just trivial conflicts of the "changed adjacent lines" type: drivers/gpu/drm/i915/i915_gem.c drivers/gpu/drm/i915/intel_display.c drivers/gpu/drm/i915/intel_drv.h Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-21drm/radeon/cik: Add tiling mode index for 1D tiled depth/stencil surfacesMichel Dänzer1-0/+2
CIK uses a different index for 1D DST surfaces compared to SI. Expose the new index so libdrm_radeon can use it properly for userspace drivers. Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-20perf: Fix capabilities bitfield compatibility in 'struct perf_event_mmap_page'Peter Zijlstra1-5/+9
Solve the problems around the broken definition of perf_event_mmap_page:: cap_usr_time and cap_usr_rdpmc fields which used to overlap, partially fixed by: 860f085b74e9 ("perf: Fix broken union in 'struct perf_event_mmap_page'") The problem with the fix (merged in v3.12-rc1 and not yet released officially), noticed by Vince Weaver is that the new behavior is not detectable by new user-space, and that due to the reuse of the field names it's easy to mis-compile a binary if old headers are used on a new kernel or new headers are used on an old kernel. To solve all that make this change explicit, detectable and self-contained, by iterating the ABI the following way: - Always clear bit 0, and rename it to usrpage->cap_bit0, to at least not confuse old user-space binaries. RDPMC will be marked as unavailable to old binaries but that's within the ABI, this is a capability bit. - Rename bit 1 to ->cap_bit0_is_deprecated and always set it to 1, so new libraries can reliably detect that bit 0 is deprecated and perma-zero without having to check the kernel version. - Use bits 2, 3, 4 for the newly defined, correct functionality: cap_user_rdpmc : 1, /* The RDPMC instruction can be used to read counts */ cap_user_time : 1, /* The time_* fields are used */ cap_user_time_zero : 1, /* The time_zero field is used */ - Rename all the bitfield names in perf_event.h to be different from the old names, to make sure it's not possible to mis-compile it accidentally with old assumptions. The 'size' field can then be used in the future to add new fields and it will act as a natural ABI version indicator as well. Also adjust tools/perf/ userspace for the new definitions, noticed by Adrian Hunter. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Also-Fixed-by: Adrian Hunter <adrian.hunter@intel.com> Link: http://lkml.kernel.org/n/tip-zr03yxjrpXesOzzupszqglbv@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-20perf: Update ABI commentPeter Zijlstra1-0/+1
For some mysterious reason the sample_id field of PERF_RECORD_MMAP went AWOL. Reported-by: Vince Weaver <vince@deater.net> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-19drm/i915: Add second slice l3 remappingBen Widawsky1-4/+4
Certain HSW SKUs have a second bank of L3. This L3 remapping has a separate register set, and interrupt from the first "slice". A slice is simply a term to define some subset of the GPU's l3 cache. This patch implements both the interrupt handler, and ability to communicate with userspace about this second slice. v2: Remove redundant check about non-existent slice. Change warning about interrupts of unknown slices to WARN_ON_ONCE Handle the case where we get 2 slice interrupts concurrently, and switch the tracking of interrupts to be non-destructive (all Ville) Don't enable/mask the second slice parity interrupt for ivb/vlv (even though all docs I can find claim it's rsvd) (Ville + Bryan) Keep BYT excluded from L3 parity v3: Fix the slice = ffs to be decremented by one (found by Ville). When I initially did my testing on the series, I was using 1-based slice counting, so this code was correct. Not sure why my simpler tests that I've been running since then didn't pick it up sooner. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-18Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Two small fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix UAPI export of PERF_EVENT_IOC_ID perf/x86/intel: Fix Silvermont offcore masks
2013-09-18perf: Fix UAPI export of PERF_EVENT_IOC_IDVince Weaver1-1/+1
Without the following patch I have problems compiling code using the new PERF_EVENT_IOC_ID ioctl(). It looks like u64 was used instead of __u64 Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1309171450380.11444@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-15Merge branch 'for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input update from Dmitry Torokhov: "The only change is David Hermann's new EVIOCREVOKE evdev ioctl that allows safely passing file descriptors to input devices to session processes and later being able to stop delivery of events through these fds so that inactive sessions will no longer receive user input that does not belong to them" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: evdev - add EVIOCREVOKE ioctl
2013-09-13Merge branch 'for-linus' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile 4 from Al Viro: "list_lru pile, mostly" This came out of Andrew's pile, Al ended up doing the merge work so that Andrew didn't have to. Additionally, a few fixes. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (42 commits) super: fix for destroy lrus list_lru: dynamically adjust node arrays shrinker: Kill old ->shrink API. shrinker: convert remaining shrinkers to count/scan API staging/lustre/libcfs: cleanup linux-mem.h staging/lustre/ptlrpc: convert to new shrinker API staging/lustre/obdclass: convert lu_object shrinker to count/scan API staging/lustre/ldlm: convert to shrinkers to count/scan API hugepage: convert huge zero page shrinker to new shrinker API i915: bail out earlier when shrinker cannot acquire mutex drivers: convert shrinkers to new count/scan API fs: convert fs shrinkers to new scan/count API xfs: fix dquot isolation hang xfs-convert-dquot-cache-lru-to-list_lru-fix xfs: convert dquot cache lru to list_lru xfs: rework buffer dispose list tracking xfs-convert-buftarg-lru-to-generic-code-fix xfs: convert buftarg LRU to generic code fs: convert inode and dentry shrinking to be node aware vmscan: per-node deferred work ...
2013-09-12Merge branch 'for-linus' of ↵Linus Torvalds1-1/+29
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs updates from Chris Mason: "This is against 3.11-rc7, but was pulled and tested against your tree as of yesterday. We do have two small incrementals queued up, but I wanted to get this bunch out the door before I hop on an airplane. This is a fairly large batch of fixes, performance improvements, and cleanups from the usual Btrfs suspects. We've included Stefan Behren's work to index subvolume UUIDs, which is targeted at speeding up send/receive with many subvolumes or snapshots in place. It closes a long standing performance issue that was built in to the disk format. Mark Fasheh's offline dedup work is also here. In this case offline means the FS is mounted and active, but the dedup work is not done inline during file IO. This is a building block where utilities are able to ask the FS to dedup a series of extents. The kernel takes care of verifying the data involved really is the same. Today this involves reading both extents, but we'll continue to evolve the patches" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (118 commits) Btrfs: optimize key searches in btrfs_search_slot Btrfs: don't use an async starter for most of our workers Btrfs: only update disk_i_size as we remove extents Btrfs: fix deadlock in uuid scan kthread Btrfs: stop refusing the relocation of chunk 0 Btrfs: fix memory leak of uuid_root in free_fs_info btrfs: reuse kbasename helper btrfs: return btrfs error code for dev excl ops err Btrfs: allow partial ordered extent completion Btrfs: convert all bug_ons in free-space-cache.c Btrfs: add support for asserts Btrfs: adjust the fs_devices->missing count on unmount Btrf: cleanup: don't check for root_refs == 0 twice Btrfs: fix for patch "cleanup: don't check the same thing twice" Btrfs: get rid of one BUG() in write_all_supers() Btrfs: allocate prelim_ref with a slab allocater Btrfs: pass gfp_t to __add_prelim_ref() to avoid always using GFP_ATOMIC Btrfs: fix race conditions in BTRFS_IOC_FS_INFO ioctl Btrfs: fix race between removing a dev and writing sbs Btrfs: remove ourselves from the cluster list under lock ...
2013-09-12Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds1-0/+27
Pull CIFS fixes from Steve French: "CIFS update including case insensitive file name matching improvements for UTF-8 to Unicode, various small cifs fixes, SMB2/SMB3 leasing improvements, support for following SMB2 symlinks, SMB3 packet signing improvements" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (25 commits) CIFS: Respect epoch value from create lease context v2 CIFS: Add create lease v2 context for SMB3 CIFS: Move parsing lease buffer to ops struct CIFS: Move creating lease buffer to ops struct CIFS: Store lease state itself rather than a mapped oplock value CIFS: Replace clientCanCache* bools with an integer [CIFS] quiet sparse compile warning cifs: Start using per session key for smb2/3 for signature generation cifs: Add a variable specific to NTLMSSP for key exchange. cifs: Process post session setup code in respective dialect functions. CIFS: convert to use le32_add_cpu() CIFS: Fix missing lease break CIFS: Fix a memory leak when a lease break comes cifs: add winucase_convert.pl to Documentation/ directory cifs: convert case-insensitive dentry ops to use new case conversion routines cifs: add new case-insensitive conversion routines that are based on wchar_t's [CIFS] Add Scott to list of cifs contributors cifs: Move and expand MAX_SERVER_SIZE definition cifs: Expand max share name length to 256 cifs: Move string length definitions to uapi ...
2013-09-11fs: bump inode and dentry counters to longGlauber Costa1-3/+3
This series reworks our current object cache shrinking infrastructure in two main ways: * Noticing that a lot of users copy and paste their own version of LRU lists for objects, we put some effort in providing a generic version. It is modeled after the filesystem users: dentries, inodes, and xfs (for various tasks), but we expect that other users could benefit in the near future with little or no modification. Let us know if you have any issues. * The underlying list_lru being proposed automatically and transparently keeps the elements in per-node lists, and is able to manipulate the node lists individually. Given this infrastructure, we are able to modify the up-to-now hammer called shrink_slab to proceed with node-reclaim instead of always searching memory from all over like it has been doing. Per-node lru lists are also expected to lead to less contention in the lru locks on multi-node scans, since we are now no longer fighting for a global lock. The locks usually disappear from the profilers with this change. Although we have no official benchmarks for this version - be our guest to independently evaluate this - earlier versions of this series were performance tested (details at http://permalink.gmane.org/gmane.linux.kernel.mm/100537) yielding no visible performance regressions while yielding a better qualitative behavior in NUMA machines. With this infrastructure in place, we can use the list_lru entry point to provide memcg isolation and per-memcg targeted reclaim. Historically, those two pieces of work have been posted together. This version presents only the infrastructure work, deferring the memcg work for a later time, so we can focus on getting this part tested. You can see more about the history of such work at http://lwn.net/Articles/552769/ Dave Chinner (18): dcache: convert dentry_stat.nr_unused to per-cpu counters dentry: move to per-sb LRU locks dcache: remove dentries from LRU before putting on dispose list mm: new shrinker API shrinker: convert superblock shrinkers to new API list: add a new LRU list type inode: convert inode lru list to generic lru list code. dcache: convert to use new lru list infrastructure list_lru: per-node list infrastructure shrinker: add node awareness fs: convert inode and dentry shrinking to be node aware xfs: convert buftarg LRU to generic code xfs: rework buffer dispose list tracking xfs: convert dquot cache lru to list_lru fs: convert fs shrinkers to new scan/count API drivers: convert shrinkers to new count/scan API shrinker: convert remaining shrinkers to count/scan API shrinker: Kill old ->shrink API. Glauber Costa (7): fs: bump inode and dentry counters to long super: fix calculation of shrinkable objects for small numbers list_lru: per-node API vmscan: per-node deferred work i915: bail out earlier when shrinker cannot acquire mutex hugepage: convert huge zero page shrinker to new shrinker API list_lru: dynamically adjust node arrays This patch: There are situations in very large machines in which we can have a large quantity of dirty inodes, unused dentries, etc. This is particularly true when umounting a filesystem, where eventually since every live object will eventually be discarded. Dave Chinner reported a problem with this while experimenting with the shrinker revamp patchset. So we believe it is time for a change. This patch just moves int to longs. Machines where it matters should have a big long anyway. Signed-off-by: Glauber Costa <glommer@openvz.org> Cc: Dave Chinner <dchinner@redhat.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Carlos Maiolino <cmaiolino@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Chinner <dchinner@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Gleb Natapov <gleb@redhat.com> Cc: Greg Thelen <gthelen@google.com> Cc: J. Bruce Fields <bfields@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Stultz <john.stultz@linaro.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Kent Overstreet <koverstreet@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-11Merge tag 'dm-3.12-changes' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device-mapper updates from Mike Snitzer: "Add the ability to collect I/O statistics on user-defined regions of a device-mapper device. This dm-stats code required the reintroduction of a div64_u64_rem() helper, but as a separate method that doesn't slow down div64_u64() -- especially on 32-bit systems. Allow the error target to replace request-based DM devices (e.g. multipath) in addition to bio-based DM devices. Various other small code fixes and improvements to thin-provisioning, DM cache and the DM ioctl interface" * tag 'dm-3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm stripe: silence a couple sparse warnings dm: add statistics support dm thin: always return -ENOSPC if no_free_space is set dm ioctl: cleanup error handling in table_load dm ioctl: increase granularity of type_lock when loading table dm ioctl: prevent rename to empty name or uuid dm thin: set pool read-only if breaking_sharing fails block allocation dm thin: prefix pool error messages with pool device name dm: allow error target to replace bio-based and request-based targets math64: New separate div64_u64_rem helper dm space map: optimise sm_ll_dec and sm_ll_inc dm btree: prefetch child nodes when walking tree for a dm_btree_del dm btree: use pop_frame in dm_btree_del to cleanup code dm cache: eliminate holes in cache structure dm cache: fix stacking of geometry limits dm thin: fix stacking of geometry limits dm thin: add data block size limits to Documentation dm cache: add data block size limits to code and Documentation dm cache: document metadata device is exclussive to a cache dm: stop using WQ_NON_REENTRANT
2013-09-09Merge tag 'xfs-for-linus-v3.12-rc1' of git://oss.sgi.com/xfs/xfsLinus Torvalds1-0/+47
Pull xfs updates from Ben Myers: "For 3.12-rc1 there are a number of bugfixes in addition to work to ease usage of shared code between libxfs and the kernel, the rest of the work to enable project and group quotas to be used simultaneously, performance optimisations in the log and the CIL, directory entry file type support, fixes for log space reservations, some spelling/grammar cleanups, and the addition of user namespace support. - introduce readahead to log recovery - add directory entry file type support - fix a number of spelling errors in comments - introduce new Q_XGETQSTATV quotactl for project quotas - add USER_NS support - log space reservation rework - CIL optimisations - kernel/userspace libxfs rework" * tag 'xfs-for-linus-v3.12-rc1' of git://oss.sgi.com/xfs/xfs: (112 commits) xfs: XFS_MOUNT_QUOTA_ALL needed by userspace xfs: dtype changed xfs_dir2_sfe_put_ino to xfs_dir3_sfe_put_ino Fix wrong flag ASSERT in xfs_attr_shortform_getvalue xfs: finish removing IOP_* macros. xfs: inode log reservations are too small xfs: check correct status variable for xfs_inobt_get_rec() call xfs: inode buffers may not be valid during recovery readahead xfs: check LSN ordering for v5 superblocks during recovery xfs: btree block LSN escaping to disk uninitialised XFS: Assertion failed: first <= last && last < BBTOB(bp->b_length), file: fs/xfs/xfs_trans_buf.c, line: 568 xfs: fix bad dquot buffer size in log recovery readahead xfs: don't account buffer cancellation during log recovery readahead xfs: check for underflow in xfs_iformat_fork() xfs: xfs_dir3_sfe_put_ino can be static xfs: introduce object readahead to log recovery xfs: Simplify xfs_ail_min() with list_first_entry_or_null() xfs: Register hotcpu notifier after initialization xfs: add xfs sb v4 support for dirent filetype field xfs: Add write support for dirent filetype field xfs: Add read-only support for dirent filetype field ...
2013-09-09Merge tag 'vfio-v3.12-rc0' of git://github.com/awilliam/linux-vfioLinus Torvalds1-0/+38
Pull VFIO update from Alex Williamson: "VFIO updates include safer default file flags for VFIO device fds, an external user interface exported to allow other modules to hold references to VFIO groups, a fix to test for extended config space on PCIe and PCI-x, and new hot reset interfaces for PCI devices which allows the user to do PCI bus/slot resets when all of the devices affected by the reset are owned by the user. For this last feature, the PCI bus reset interface, I depend on changes already merged from Bjorn's PCI pull request. I therefore merged my tree up to commit cb3e433, which I think was the correct action, but as Stephen Rothwell noted, I failed to provide a commit message indicating why the merge was required. Sorry for that. Thanks, Alex" * tag 'vfio-v3.12-rc0' of git://github.com/awilliam/linux-vfio: vfio: fix documentation vfio-pci: PCI hot reset interface vfio-pci: Test for extended config space vfio-pci: Use fdget() rather than eventfd_fget() vfio: Add O_CLOEXEC flag to vfio device fd vfio: use get_unused_fd_flags(0) instead of get_unused_fd() vfio: add external user support
2013-09-08cifs: Move and expand MAX_SERVER_SIZE definitionScott Lovenberg1-0/+1
MAX_SERVER_SIZE has been moved to cifs_mount.h and renamed CIFS_NI_MAXHOST for clarity. It has been expanded to 1024 as the previous value of 16 was very short. Signed-off-by: Scott Lovenberg <scott.lovenberg@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-08cifs: Expand max share name length to 256Scott Lovenberg1-1/+2
The old max share name length limit was 80 due to Windows NET SHARE command not allowing more than that. However, share names can be much longer. This is a more reasonable maximum share name length. Signed-off-by: Scott Lovenberg <scott.lovenberg@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-08cifs: Move string length definitions to uapiScott Lovenberg1-0/+25
The max string length definitions for user name, domain name, password, and share name have been moved into their own header file in uapi so the mount helper can use autoconf to define them instead of keeping the kernel side and userland side definitions in sync manually. The names have also been standardized with a "CIFS" prefix and "LEN" suffix. Signed-off-by: Scott Lovenberg <scott.lovenberg@gmail.com> Reviewed-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-08Merge git://git.infradead.org/users/willy/linux-nvmeLinus Torvalds2-0/+478
Pull NVM Express driver update from Matthew Wilcox. * git://git.infradead.org/users/willy/linux-nvme: NVMe: Merge issue on character device bring-up NVMe: Handle ioremap failure NVMe: Add pci suspend/resume driver callbacks NVMe: Use normal shutdown NVMe: Separate controller init from disk discovery NVMe: Separate queue alloc/free from create/delete NVMe: Group pci related actions in functions NVMe: Disk stats for read/write commands only NVMe: Bring up cdev on set feature failure NVMe: Fix checkpatch issues NVMe: Namespace IDs are unsigned NVMe: Update nvme_id_power_state with latest spec NVMe: Split header file into user-visible and kernel-visible pieces NVMe: Call nvme_process_cq from submission path NVMe: Remove "process_cq did something" message NVMe: Return correct value from interrupt handler NVMe: Disk IO statistics NVMe: Restructure MSI / MSI-X setup NVMe: Use kzalloc instead of kmalloc+memset
2013-09-08Merge branch 'next' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Nothing major for this kernel, just maintenance updates" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (21 commits) apparmor: add the ability to report a sha1 hash of loaded policy apparmor: export set of capabilities supported by the apparmor module apparmor: add the profile introspection file to interface apparmor: add an optional profile attachment string for profiles apparmor: add interface files for profiles and namespaces apparmor: allow setting any profile into the unconfined state apparmor: make free_profile available outside of policy.c apparmor: rework namespace free path apparmor: update how unconfined is handled apparmor: change how profile replacement update is done apparmor: convert profile lists to RCU based locking apparmor: provide base for multiple profiles to be replaced at once apparmor: add a features/policy dir to interface apparmor: enable users to query whether apparmor is enabled apparmor: remove minimum size check for vmalloc() Smack: parse multiple rules per write to load2, up to PAGE_SIZE-1 bytes Smack: network label match fix security: smack: add a hash table to quicken smk_find_entry() security: smack: fix memleak in smk_write_rules_list() xattr: Constify ->name member of "struct xattr". ...
2013-09-07Input: evdev - add EVIOCREVOKE ioctlDavid Herrmann1-0/+1
If we have multiple sessions on a system, we normally don't want background sessions to read input events. Otherwise, it could capture passwords and more entered by the user on the foreground session. This is a real world problem as the recent XMir development showed: http://mjg59.dreamwidth.org/27327.html We currently rely on sessions to release input devices when being deactivated. This relies on trust across sessions. But that's not given on usual systems. We therefore need a way to control which processes have access to input devices. With VTs the kernel simply routed them through the active /dev/ttyX. This is not possible with evdev devices, though. Moreover, we want to avoid routing input-devices through some dispatcher-daemon in userspace (which would add some latency). This patch introduces EVIOCREVOKE. If called on an evdev fd, this revokes device-access irrecoverably for that *single* open-file. Hence, once you call EVIOCREVOKE on any dup()ed fd, all fds for that open-file will be rather useless now (but still valid compared to close()!). This allows us to pass fds directly to session-processes from a trusted source. The source keeps a dup()ed fd and revokes access once the session-process is no longer active. Compared to the EVIOCMUTE proposal, we can avoid the CAP_SYS_ADMIN restriction now as there is no way to revive the fd again. Hence, a user is free to call EVIOCREVOKE themself to kill the fd. Additionally, this ioctl allows multi-layer access-control (again compared to EVIOCMUTE which was limited to one layer via CAP_SYS_ADMIN). A middle layer can simply request a new open-file from the layer above and pass it to the layer below. Now each layer can call EVIOCREVOKE on the fds to revoke access for all layers below, at the expense of one fd per layer. There's already ongoing experimental user-space work which demonstrates how it can be used: http://lists.freedesktop.org/archives/systemd-devel/2013-August/012897.html Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-09-07Merge branch 'for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "A new driver for slidebar on Ideapad laptops and a bunch of assorted driver fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (32 commits) Input: add SYN_MAX and SYN_CNT constants Input: max11801_ts - convert to devm Input: egalax-ts - fix typo and improve text Input: MAINTAINERS - change maintainer for cyttsp driver Input: cyttsp4 - kill 'defined but not used' compiler warnings Input: add driver for slidebar on Lenovo IdeaPad laptops Input: omap-keypad - set up irq type from DT Input: omap-keypad - enable wakeup capability for keypad. Input: omap-keypad - clear interrupts on open Input: omap-keypad - convert to threaded IRQ Input: omap-keypad - use bitfiled instead of hardcoded values Input: cyttsp4 - remove useless NULL test from cyttsp4_watchdog_timer() Input: wacom - fix error return code in wacom_probe() Input: as5011 - fix error return code in as5011_probe() Input: keyboard, serio - simplify use of devm_ioremap_resource Input: tegra-kbc - simplify use of devm_ioremap_resource Input: htcpen - fix incorrect placement of __initdata Input: qt1070 - add power management ops Input: wistron_btns - add MODULE_DEVICE_TABLE Input: wistron_btns - mark the Medion MD96500 keymap as tested ...
2013-09-07Revert "Input: introduce BTN/ABS bits for drums and guitars"Linus Torvalds1-23/+2
This reverts commits 61e00655e9cb, 73f8645db191 and 8e22ecb603c8: "Input: introduce BTN/ABS bits for drums and guitars" "HID: wiimote: add support for Guitar-Hero drums" "HID: wiimote: add support for Guitar-Hero guitars" The extra new ABS_xx values resulted in ABS_MAX no longer being a power-of-two, which broke the comparison logic. It also caused the ioctl numbers to overflow into the next byte, causing problems for that. We'll try again for 3.13. Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds1-0/+3
Pull Tile arch updates from Chris Metcalf: "These changes bring in a bunch of new functionality that has been maintained internally at Tilera over the last year, plus other stray bits of work that I've taken into the tile tree from other folks. The changes include some PCI root complex work, interrupt-driven console support, support for performing fast-path unaligned data fixups by kernel-based JIT code generation, CONFIG_PREEMPT support, vDSO support for gettimeofday(), a serial driver for the tilegx on-chip UART, KGDB support, more optimized string routines, support for ftrace and kprobes, improved ASLR, and many bug fixes. We also remove support for the old TILE64 chip, which is no longer buildable" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (85 commits) tile: refresh tile defconfig files tile: rework <asm/cmpxchg.h> tile PCI RC: make default consistent DMA mask 32-bit tile: add null check for kzalloc in tile/kernel/setup.c tile: make __write_once a synonym for __read_mostly tile: remove support for TILE64 tile: use asm-generic/bitops/builtin-*.h tile: eliminate no-op "noatomichash" boot argument tile: use standard tile_bundle_bits type in traps.c tile: simplify code referencing hypervisor API addresses tile: change <asm/system.h> to <asm/switch_to.h> in comments tile: mark pcibios_init() as __init tile: check for correct compiler earlier in asm-offsets.c tile: use standard 'generic-y' model for <asm/hw_irq.h> tile: use asm-generic version of <asm/local64.h> tile PCI RC: add comment about "PCI hole" problem tile: remove DEBUG_EXTRA_FLAGS kernel config option tile: add virt_to_kpte() API and clean up and document behavior tile: support FRAME_POINTER tile: support reporting Tilera hypervisor statistics ...
2013-09-06Merge tag 'arm64-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 Pull ARM64 update from Catalin Marinas: - User tagged pointers support (top 8-bit of user pointers automatically ignored by the CPU). - Kernel mode NEON (no users for arm64 yet but work in progress). - arm64 kernel Image header extended to accommodate future EFI stub. - Remove BogoMIPS reporting (not relevant, it's just the timer frequency). - Clean-up (EM_AARCH64/EM_ARM to elf-em.h, ELF notes in read-only segment, unused variable). - Bug-fixes (RAM boundaries not 2MB aligned, perf, includes). * tag 'arm64-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: Documentation/arm64: clarify requirements for DTB placement arm64: mm: permit use of tagged pointers at EL0 Move the EM_ARM and EM_AARCH64 definitions to uapi/linux/elf-em.h arm64: Remove unused cpu_name ascii in arch/arm64/mm/proc.S arm64: delay: don't bother reporting bogomips in /proc/cpuinfo arm64: Fix mapping of memory banks not ending on a PMD_SIZE boundary arm64: move elf notes into readonly segment arm64: Enable interrupts in the EL0 undef handler arm64: Expand arm64 image header ARM64: include: asm: include "asm/types.h" in "pgtable-2level-types.h" and "pgtable-3level-types.h" arm64: add support for kernel mode NEON arm64: perf: fix ARMv8 EVTYPE_MASK to include NSH bit arm64: perf: fix group validation when using enable_on_exec
2013-09-06Merge branch 'for-linus' of ↵Linus Torvalds2-3/+26
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID updates from Jiri Kosina: "Highlights: - conversion of HID subsystem to use devm-based resource management, from Benjamin Tissoires - i2c-hid support for DT bindings, from Benjamin Tissoires - much improved support for Win8-multitouch devices, from Benjamin Tissoires - cleanup of core code using common hidinput_input_event(), from David Herrmann - fix for bug in implement() access to the bit stream (causing oops) that has been present in the code for ages, but devices that are able to trigger it have started to appear only now, from Jiri Kosina - fixes for CVE-2013-2899, CVE-2013-2898, CVE-2013-2896, CVE-2013-2892, CVE-2013-2888 (all triggerable only by specially crafted malicious HW devices plugged into the system), from Kees Cook - hidraw oops fix, from Manoj Chourasia - various smaller fixes here and there, support for a bunch of new devices by various contributors" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (53 commits) HID: MAINTAINERS: add roccat drivers HID: hid-sensor-hub: change kmalloc + memcpy by kmemdup HID: hid-sensor-hub: move to devm_kzalloc HID: hid-sensor-hub: fix indentation accross the code HID: move HID_REPORT_TYPES closer to the report-definitions HID: check for NULL field when setting values HID: picolcd_core: validate output report details HID: sensor-hub: validate feature report details HID: ntrig: validate feature report details HID: pantherlord: validate output report details HID: hid-wiimote: print small buffers via %*phC HID: uhid: improve uhid example client HID: Correct the USB IDs for the new Macbook Air 6 HID: wiimote: add support for Guitar-Hero guitars HID: wiimote: add support for Guitar-Hero drums Input: introduce BTN/ABS bits for drums and guitars HID: battery: don't do DMA from stack HID: roccat: add support for KonePureOptical v2 HID: picolcd: Prevent NULL pointer dereference on _remove() HID: usbhid: quirk for N-Trig DuoSense Touch Screen ...
2013-09-06Merge branches 'for-3.12/devm', 'for-3.12/i2c-hid', 'for-3.12/i2c-hid-dt', ↵Jiri Kosina2-3/+26
'for-3.12/logitech', 'for-3.12/multitouch-win8', 'for-3.12/trasnport-driver-cleanup', 'for-3.12/uhid', 'for-3.12/upstream' and 'for-3.12/wiimote' into for-linus
2013-09-06dm: add statistics supportMikulas Patocka1-2/+2
Support the collection of I/O statistics on user-defined regions of a DM device. If no regions are defined no statistics are collected so there isn't any performance impact. Only bio-based DM devices are currently supported. Each user-defined region specifies a starting sector, length and step. Individual statistics will be collected for each step-sized area within the range specified. The I/O statistics counters for each step-sized area of a region are in the same format as /sys/block/*/stat or /proc/diskstats but extra counters (12 and 13) are provided: total time spent reading and writing in milliseconds. All these counters may be accessed by sending the @stats_print message to the appropriate DM device via dmsetup. The creation of DM statistics will allocate memory via kmalloc or fallback to using vmalloc space. At most, 1/4 of the overall system memory may be allocated by DM statistics. The admin can see how much memory is used by reading /sys/module/dm_mod/parameters/stats_current_allocated_bytes See Documentation/device-mapper/statistics.txt for more details. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2013-09-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds33-58/+590
Pull networking changes from David Miller: "Noteworthy changes this time around: 1) Multicast rejoin support for team driver, from Jiri Pirko. 2) Centralize and simplify TCP RTT measurement handling in order to reduce the impact of bad RTO seeding from SYN/ACKs. Also, when both timestamps and local RTT measurements are available prefer the later because there are broken middleware devices which scramble the timestamp. From Yuchung Cheng. 3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel memory consumed to queue up unsend user data. From Eric Dumazet. 4) Add a "physical port ID" abstraction for network devices, from Jiri Pirko. 5) Add a "suppress" operation to influence fib_rules lookups, from Stefan Tomanek. 6) Add a networking development FAQ, from Paul Gortmaker. 7) Extend the information provided by tcp_probe and add ipv6 support, from Daniel Borkmann. 8) Use RCU locking more extensively in openvswitch data paths, from Pravin B Shelar. 9) Add SCTP support to openvswitch, from Joe Stringer. 10) Add EF10 chip support to SFC driver, from Ben Hutchings. 11) Add new SYNPROXY netfilter target, from Patrick McHardy. 12) Compute a rate approximation for sending in TCP sockets, and use this to more intelligently coalesce TSO frames. Furthermore, add a new packet scheduler which takes advantage of this estimate when available. From Eric Dumazet. 13) Allow AF_PACKET fanouts with random selection, from Daniel Borkmann. 14) Add ipv6 support to vxlan driver, from Cong Wang" Resolved conflicts as per discussion. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits) openvswitch: Fix alignment of struct sw_flow_key. netfilter: Fix build errors with xt_socket.c tcp: Add missing braces to do_tcp_setsockopt caif: Add missing braces to multiline if in cfctrl_linkup_request bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize vxlan: Fix kernel panic on device delete. net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls net: mvneta: properly disable HW PHY polling and ensure adjust_link() works icplus: Use netif_running to determine device state ethernet/arc/arc_emac: Fix huge delays in large file copies tuntap: orphan frags before trying to set tx timestamp tuntap: purge socket error queue on detach qlcnic: use standard NAPI weights ipv6:introduce function to find route for redirect bnx2x: VF RSS support - VF side bnx2x: VF RSS support - PF side vxlan: Notify drivers for listening UDP port changes net: usbnet: update addr_assign_type if appropriate driver/net: enic: update enic maintainers and driver driver/net: enic: Exposing symbols for Cisco's low latency driver ...
2013-09-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-0/+3
Conflicts: drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c net/bridge/br_multicast.c net/ipv6/sit.c The conflicts were minor: 1) sit.c changes overlap with change to ip_tunnel_xmit() signature. 2) br_multicast.c had an overlap between computing max_delay using msecs_to_jiffies and turning MLDV2_MRC() into an inline function with a name using lowercase instead of uppercase letters. 3) stmmac had two overlapping changes, one which conditionally allocated and hooked up a dma_cfg based upon the presence of the pbl OF property, and another one handling store-and-forward DMA made. The latter of which should not go into the new of_find_property() basic block. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05Merge branch 'v4l_for_linus' of ↵Linus Torvalds4-10/+45
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: "This series contains: - Exynos s5p-mfc driver got support for VP8 encoder - Some SoC drivers gained support for asynchronous registration (needed for DT) - The RC subsystem gained support for RC activity LED; - New drivers added: a video decoder(adv7842), a video encoder (adv7511), a new GSPCA driver (stk1135) and support for Renesas R-Car (vsp1) - the first SDR kernel driver: mirics msi3101. Due to some troubles with the driver, and because the API is still under discussion, it will be merged at staging for 3.12. Need to rework on it - usual new boards additions, fixes, cleanups and driver improvements" * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (242 commits) [media] cx88: Fix regression: CX88_AUDIO_WM8775 can't be 0 [media] exynos4-is: Fix entity unregistration on error path [media] exynos-gsc: Register v4l2 device [media] exynos4-is: Fix fimc-lite bayer formats [media] em28xx: fix assignment of the eeprom data [media] hdpvr: fix iteration over uninitialized lists in hdpvr_probe() [media] usbtv: Throw corrupted frames away [media] usbtv: Fix deinterlacing [media] v4l2: added missing mutex.h include to v4l2-ctrls.h [media] DocBook: upgrade media_api DocBook version to 4.2 [media] ml86v7667: fix compile warning: 'ret' set but not used [media] s5p-g2d: Fix registration failure [media] media: coda: Fix DT driver data pointer for i.MX27 [media] s5p-mfc: Fix input/output format reporting [media] v4l: vsp1: Fix mutex double lock at streamon time [media] v4l: vsp1: Add support for RT clock [media] v4l: vsp1: Initialize media device bus_info field [media] davinci: vpif_capture: fix error return code in vpif_probe() [media] davinci: vpif_display: fix error return code in vpif_probe() [media] MAINTAINERS: add entries for adv7511 and adv7842 ...
2013-09-05Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds6-7/+271
Pull drm tree changes from Dave Airlie: "This is the main drm pull request, I have some overlap with sound and arm-soc, the sound patch is acked and may conflict based on -next reports but should be a trivial fixup, which I'll leave to you! Highlights: - new drivers: MSM driver from Rob Clark - non-drm: switcheroo and hdmi audio driver support for secondary GPU poweroff, so drivers can use runtime PM to poweroff the GPUs. This can save 5 or 6W on some optimus laptops. - drm core: combined GEM and TTM VMA manager per-filp mmap permission tracking initial rendernode support (via a runtime enable for now, until we get api stable), remove old proc support, lots of cleanups of legacy code hdmi vendor infoframes and 4k modes lots of gem/prime locking and races fixes async pageflip scaffolding drm bridge objects - i915: Haswell PC8+ support and eLLC support, HDMI 4K support, initial per-process VMA pieces, watermark reworks, convert to generic hdmi infoframes, encoder reworking, fastboot support, - radeon: CIK PM support, remove 3d blit code in favour of DMA engines, Berlin GPU support, HDMI audio fixes - nouveau: secondary GPU power down support for optimus laptops, lots of fixes, use MSI, VP3 engine support - exynos: runtime pm support for g2d, DT support, remove non-DT, - tda998x i2c driver: lots of fixes for sync issues - gma500: lots of cleanups - rcar: add LVDS support, fbdev emulation, - tegra: just minor fixes" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (684 commits) drm/exynos: Fix build error with exynos_drm_connector.c drm/exynos: Remove non-DT support in exynos_drm_fimd drm/exynos: Remove non-DT support in exynos_hdmi drm/exynos: Remove non-DT support in exynos_drm_g2d drm/exynos: Remove non-DT support in exynos_hdmiphy drm/exynos: Remove non-DT support in exynos_ddc drm/exynos: Make Exynos DRM drivers depend on OF drm/exynos: Consider fallback option to allocation fail drm/exynos: fimd: move platform data parsing to separate function drm/exynos: fimd: get signal polarities from device tree drm/exynos: fimd: replace struct fb_videomode with videomode drm/exynos: check a pixel format to a particular window layer drm/exynos: fix fimd pixel format setting drm/exynos: Add NULL pointer check drm/exynos: Remove redundant error messages drm/exynos: Add missing of.h header include drm/exynos: Remove redundant NULL check in exynos_drm_buf drm/exynos: add device tree support for rotator drm/exynos: Add missing includes drm/exynos: add runtime pm interfaces to g2d driver ...
2013-09-05Merge tag 'rdma-for-linus' of ↵Linus Torvalds1-1/+98
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull main batch of InfiniBand/RDMA changes from Roland Dreier: - Large ocrdma HW driver update: add "fast register" work requests, fixes, cleanups - Add receive flow steering support for raw QPs - Fix IPoIB neighbour race that leads to crash - iSER updates including support for using "fast register" memory registration - IPv6 support for iWARP - XRC transport fixes * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (54 commits) RDMA/ocrdma: Fix compiler warning about int/pointer size mismatch IB/iser: Fix redundant pointer check in dealloc flow IB/iser: Fix possible memory leak in iser_create_frwr_pool() IB/qib: Move COUNTER_MASK definition within qib_mad.h header guards RDMA/ocrdma: Fix passing wrong opcode to modify_srq RDMA/ocrdma: Fill PVID in UMC case RDMA/ocrdma: Add ABI versioning support RDMA/ocrdma: Consider multiple SGES in case of DPP RDMA/ocrdma: Fix for displaying proper link speed RDMA/ocrdma: Increase STAG array size RDMA/ocrdma: Dont use PD 0 for userpace CQ DB RDMA/ocrdma: FRMA code cleanup RDMA/ocrdma: For ERX2 irrespective of Qid, num_posted offset is 24 RDMA/ocrdma: Fix to work with even a single MSI-X vector RDMA/ocrdma: Remove the MTU check based on Ethernet MTU RDMA/ocrdma: Add support for fast register work requests (FRWR) RDMA/ocrdma: Create IRD queue fix IB/core: Better checking of userspace values for receive flow steering IB/mlx4: Add receive flow steering support IB/core: Export ib_create/destroy_flow through uverbs ...
2013-09-05Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-0/+1
Pull KVM updates from Gleb Natapov: "The highlights of the release are nested EPT and pv-ticketlocks support (hypervisor part, guest part, which is most of the code, goes through tip tree). Apart of that there are many fixes for all arches" Fix up semantic conflicts as discussed in the pull request thread.. * 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (88 commits) ARM: KVM: Add newlines to panic strings ARM: KVM: Work around older compiler bug ARM: KVM: Simplify tracepoint text ARM: KVM: Fix kvm_set_pte assignment ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256 ARM: KVM: Bugfix: vgic_bytemap_get_reg per cpu regs ARM: KVM: vgic: fix GICD_ICFGRn access ARM: KVM: vgic: simplify vgic_get_target_reg KVM: MMU: remove unused parameter KVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate() KVM: PPC: Book3S PR: Make instruction fetch fallback work for system calls KVM: PPC: Book3S PR: Don't corrupt guest state when kernel uses VMX KVM: x86: update masterclock when kvmclock_offset is calculated (v2) KVM: PPC: Book3S: Fix compile error in XICS emulation KVM: PPC: Book3S PR: return appropriate error when allocation fails arch: powerpc: kvm: add signed type cast for comparation KVM: x86: add comments where MMIO does not return to the emulator KVM: vmx: count exits to userspace during invalid guest emulation KVM: rename __kvm_io_bus_sort_cmp to kvm_io_bus_cmp kvm: optimize away THP checks in kvm_is_mmio_pfn() ...
2013-09-05Merge tag 'ext4_for_linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "New features for 3.12: - Added aggressive extent caching using the extent status tree. This can actually decrease memory usage in read-mostly workloads since the information is much more compactly stored in the extent status tree than if we had to keep the extent tree metadata blocks in the buffer cache. This also improves Asynchronous I/O since it is it makes much less likely that we need to do metadata I/O to lookup the extent tree information. - Improve the recovery after corrupted allocation bitmaps are found when running in errors=ignore mode. Also fixed some writeback vs truncate races when using a blocksize less than the page size" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits) ext4: allow specifying external journal by pathname mount option ext4: mark group corrupt on group descriptor checksum ext4: mark block group as corrupt on inode bitmap error ext4: mark block group as corrupt on block bitmap error ext4: fix type declaration of ext4_validate_block_bitmap ext4: error out if verifying the block bitmap fails jbd2: Fix endian mixing problems in the checksumming code ext4: isolate ext4_extents.h file ext4: Fix misspellings using 'codespell' tool ext4: convert write_begin methods to stable_page_writes semantics ext4: fix use of potentially uninitialized variables in debugging code ext4: fix lost truncate due to race with writeback ext4: simplify truncation code in ext4_setattr() ext4: fix ext4_writepages() in presence of truncate ext4: move test whether extent to map can be extended to one place ext4: fix warning in ext4_da_update_reserve_space() quota: provide interface for readding allocated space into reserved space ext4: avoid reusing recently deleted inodes in no journal mode ext4: allocate delayed allocation blocks before rename ext4: start handle at least possible moment when renaming files ...