summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2015-11-13Merge branch 'next' into for-linusDmitry Torokhov
Prepare second round of input updates for 4.3 merge window.
2015-11-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "There are several patches from Ilya fixing RBD allocation lifecycle issues, a series adding a nocephx_sign_messages option (and associated bug fixes/cleanups), several patches from Zheng improving the (directory) fsync behavior, a big improvement in IO for direct-io requests when striping is enabled from Caifeng, and several other small fixes and cleanups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: clear msg->con in ceph_msg_release() only libceph: add nocephx_sign_messages option libceph: stop duplicating client fields in messenger libceph: drop authorizer check from cephx msg signing routines libceph: msg signing callouts don't need con argument libceph: evaluate osd_req_op_data() arguments only once ceph: make fsync() wait unsafe requests that created/modified inode ceph: add request to i_unsafe_dirops when getting unsafe reply libceph: introduce ceph_x_authorizer_cleanup() ceph: don't invalidate page cache when inode is no longer used rbd: remove duplicate calls to rbd_dev_mapping_clear() rbd: set device_type::release instead of device::release rbd: don't free rbd_dev outside of the release callback rbd: return -ENOMEM instead of pool id if rbd_dev_create() fails libceph: use local variable cursor instead of &msg->cursor libceph: remove con argument in handle_reply() ceph: combine as many iovec as possile into one OSD request ceph: fix message length computation ceph: fix a comment typo rbd: drop null test before destroy functions
2015-11-13Merge tag '4.4-additional' of git://git.lwn.net/linuxLinus Torvalds
Pull more documentation updates from Jon Corbet: "A few more documentation patches that wandered in and have no reason to wait; these include some improvements to the suggestions for email clients and patch submission" * tag '4.4-additional' of git://git.lwn.net/linux: Documentation: Add minimal Mutt config for using Gmail Documentation: Add note on sending files directly with Mutt Documentation: dontdiff: remove media from dontdiff Documentation/SubmittingPatches: discuss In-Reply-To Remove email address from Documentation/filesystems/overlayfs.txt can-doc: Add missing semicolon to example
2015-11-13Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm sti driver updates from Dave Airlie: "The sti driver had a requirement on some patches in Greg's tree, they are in, so I see no problems just merging this one now" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: drm/sti: load HQVDP firmware the first time HQVDP's plane is used drm/sti: fix typo issue in sti_mode_config_init drm/sti: set mixer background color through module param drm/sti: Remove local fbdev emulation Kconfig option drm/sti: remove redundant sign extensions drm/sti: hdmi use of_get_i2c_adapter_by_node interface drm/sti: hdmi fix i2c adapter device refcounting drm/sti: Do not export symbols drm/sti: Build monolithic driver drm/sti: Use drm_crtc_vblank_*() API drm/sti: Store correct CRTC index in events drm/sti: Select FW_LOADER drm/sti: Constify function pointer structs
2015-11-13perf probe: Clear probe_trace_event when add_probe_trace_event() failsWang Nan
When probing with a glob, errors in add_probe_trace_event() won't be passed to debuginfo__find_trace_events() because it would be modified by probe_point_search_cb(). It causes a segfault if perf fails to find an argument for a probe point matched by the glob. For example: # ./perf probe -v -n 'SyS_dup? oldfd' probe-definition(0): SyS_dup? oldfd symbol:SyS_dup? file:(null) line:0 offset:0 return:0 lazy:(null) parsing arg: oldfd into oldfd 1 arguments Looking at the vmlinux_path (7 entries long) Using /lib/modules/4.3.0-rc4+/build/vmlinux for symbols Open Debuginfo file: /lib/modules/4.3.0-rc4+/build/vmlinux Try to find probe point from debuginfo. Matched function: SyS_dup3 found inline addr: 0xffffffff812095c0 Probe point found: SyS_dup3+0 Searching 'oldfd' variable in context. Converting variable oldfd into trace event. oldfd type is long int. found inline addr: 0xffffffff812096d4 Probe point found: SyS_dup2+36 Searching 'oldfd' variable in context. Failed to find 'oldfd' in this function. Matched function: SyS_dup3 Probe point found: SyS_dup3+0 Searching 'oldfd' variable in context. Converting variable oldfd into trace event. oldfd type is long int. Matched function: SyS_dup2 Probe point found: SyS_dup2+0 Searching 'oldfd' variable in context. Converting variable oldfd into trace event. oldfd type is long int. Found 4 probe_trace_events. Opening /sys/kernel/debug/tracing//kprobe_events write=1 Writing event: p:probe/SyS_dup3 _text+2135488 oldfd=%di:s64 Segmentation fault (core dumped) # This patch ensures that add_probe_trace_event() doesn't touches tf->ntevs and tf->tevs if those functions fail. After the patch: # perf probe 'SyS_dup? oldfd' Failed to find 'oldfd' in this function. Added new events: probe:SyS_dup3 (on SyS_dup? with oldfd) probe:SyS_dup3_1 (on SyS_dup? with oldfd) probe:SyS_dup2 (on SyS_dup? with oldfd) You can now use it in all perf tools, such as: perf record -e probe:SyS_dup2 -aR sleep 1 Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1447417761-156094-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-13perf probe: Fix memory leaking on failure by clearing all probe_trace_eventsMasami Hiramatsu
Fix memory leaking on the debuginfo__find_trace_events() failure path which frees an array of probe_trace_events but doesn't clears all the allocated sub-structures and strings. So, before doing zfree(tevs), clear all the array elements which may have allocated resources. Reported-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1447417761-156094-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-13perf inject: Also re-pipe lost_samples eventAdrian Hunter
perf inject must re-pipe all events otherwise they get dropped from the output file. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1447408112-1920-4-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-13perf buildid-list: Requires ordered eventsAdrian Hunter
'perf buildid-list' processes events to determine hits (i.e. with-hits option). That may not work if events are not sorted in order. i.e. MMAP events must be processed before the samples that depend on them so that sample processing can 'hit' the DSO to which the MMAP refers. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1447408112-1920-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-13perf symbols: Fix dso lookup by long name and missing buildidsAdrian Hunter
Commit 4598a0a6d22f ("perf symbols: Improve DSO long names lookup speed with rbtree") Added a tree to lookup dsos by long name. That tree gets corrupted whenever a dso long name is changed because the tree is not updated. One effect of that is buildid-list does not work with the 'with-hits' option because dso lookup fails and results in two structs for the same dso. The first has the buildid but no hits, the second has hits but no buildid. e.g. Before: $ tools/perf/perf record ls arch certs CREDITS Documentation firmware include ipc Kconfig lib Makefile net REPORTING-BUGS scripts sound usr block COPYING crypto drivers fs init Kbuild kernel MAINTAINERS mm README samples security tools virt [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.012 MB perf.data (11 samples) ] $ tools/perf/perf buildid-list 574da826c66538a8d9060d393a8866289bd06005 [kernel.kallsyms] 30c94dc66a1fe95180c3d68d2b89e576d5ae213c /lib/x86_64-linux-gnu/libc-2.19.so $ tools/perf/perf buildid-list -H 574da826c66538a8d9060d393a8866289bd06005 [kernel.kallsyms] 0000000000000000000000000000000000000000 /lib/x86_64-linux-gnu/libc-2.19.so After: $ tools/perf/perf buildid-list -H 574da826c66538a8d9060d393a8866289bd06005 [kernel.kallsyms] 30c94dc66a1fe95180c3d68d2b89e576d5ae213c /lib/x86_64-linux-gnu/libc-2.19.so The fix is to record the root of the tree on the dso so that dso__set_long_name() can update the tree when the long name changes. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Douglas Hatch <doug.hatch@hp.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Scott J Norton <scott.norton@hp.com> Cc: Waiman Long <Waiman.Long@hp.com> Fixes: 4598a0a6d22f ("perf symbols: Improve DSO long names lookup speed with rbtree") Link: http://lkml.kernel.org/r/1447408112-1920-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-13HID: wacom: Add outbounding area for DTU1141Ping Cheng
DTU1141 has an extra 1 mm tablet active outbounding area on each side of the display, same as those recently released DTUs. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-11-13crypto: qat - don't use userspace pointerTadeusz Struk
Bugfix - don't dereference userspace pointer. Cc: stable@vger.kernel.org Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-11-13Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix 'd' hotkey for filtering by DSO in the top/report TUI browser (Arnaldo Carvalho de Melo) - Allow forcing reading of non-root owned /tmp/perf-PID JIT symbol maps (Arnaldo Carvalho de Melo) - Rebuild rbtree when adjusting symbols for kcore (Adrian Hunter) - Actually install tmon in the tools/ install rule (Kamal Mostafa) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-11-12mpt3sas: fix inline markers on non inline function declarationsStephen Rothwell
After merging the scsi tree, today's linux-next build (powerpc allyesconfig) failed like this: In file included from drivers/scsi/mpt3sas/mpt3sas_scsih.c:59:0: drivers/scsi/mpt3sas/mpt3sas_scsih.c: In function '_scsih_io_done': drivers/scsi/mpt3sas/mpt3sas_base.h:1414:1: error: inlining failed in call to always_inline 'mpt3sas_scsi_direct_io_get': function body not available mpt3sas_scsi_direct_io_get(struct MPT3SAS_ADAPTER *ioc, u16 smid); ^ drivers/scsi/mpt3sas/mpt3sas_scsih.c:4448:6: error: called from here if (mpt3sas_scsi_direct_io_get(ioc, smid) && ^ In file included from drivers/scsi/mpt3sas/mpt3sas_scsih.c:59:0: drivers/scsi/mpt3sas/mpt3sas_base.h:1416:1: error: inlining failed in call to always_inline 'mpt3sas_scsi_direct_io_set': function body not available mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io); ^ drivers/scsi/mpt3sas/mpt3sas_scsih.c:4454:3: error: called from here mpt3sas_scsi_direct_io_set(ioc, smid, 0); ^ In file included from drivers/scsi/mpt3sas/mpt3sas_scsih.c:5 9:0: drivers/scsi/mpt3sas/mpt3sas_base.h:1416:1: error: inlining failed in call to always_inline 'mpt3sas_scsi_direct_io_set': function body not available mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io); ^ drivers/scsi/mpt3sas/mpt3sas_scsih.c:4454:3: error: called from here mpt3sas_scsi_direct_io_set(ioc, smid, 0); ^ Presumably caused by commit c84b06a48c4d ("mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-12dax: fix __dax_pmd_fault crashDan Williams
Since 4.3 introduced devm_memremap_pages() the pfns handled by DAX may optionally have a struct page backing. When a mapped pfn reaches vmf_insert_pfn_pmd() it fails with a crash signature like the following: kernel BUG at mm/huge_memory.c:905! [..] Call Trace: [<ffffffff812a73ba>] __dax_pmd_fault+0x2ea/0x5b0 [<ffffffffa01a4182>] xfs_filemap_pmd_fault+0x92/0x150 [xfs] [<ffffffff811fbe02>] handle_mm_fault+0x312/0x1b50 Fix this by falling back to 4K mappings in the pfn_valid() case. Longer term, vmf_insert_pfn_pmd() needs to grow support for architectures that can provide a 'pmd_special' capability. Cc: <stable@vger.kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Reported-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-11-12Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "One urgent fix for an oops under console lock in some drivers, one uapi fix, and one revert to fix rockchip regression" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()" drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't called drm: Use userspace compatible type in fourcc_mod_code macro
2015-11-12Merge tag 'trace-v4.4-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull trace cleanups from Steven Rostedt: "This contains three more clean up patches. One patch is needed to make tracing work without debugfs now that tracing uses its own tracefs. The second is removing an unused variable. The third is fixing a warning about unused variables when MAX_TRACER is not configured. Note, this warning shows up in gcc 6.0, but does not show up in gcc 4.9, as it seems that gcc does not complain about constants not being used" * tag 'trace-v4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: #ifdef out uses of max trace when CONFIG_TRACER_MAX_TRACE is not set tracing: Remove unused ftrace_cpu_disabled per cpu variable tracing: Make tracing work when debugfs is not configured in
2015-11-13Merge branch 'drm-sti-next-2015-11-03' of ↵Dave Airlie
http://git.linaro.org/people/benjamin.gaignard/kernel into drm-next sti/drm changes Add better support for firmware loading lots of fixes. * 'drm-sti-next-2015-11-03' of http://git.linaro.org/people/benjamin.gaignard/kernel: drm/sti: load HQVDP firmware the first time HQVDP's plane is used drm/sti: fix typo issue in sti_mode_config_init drm/sti: set mixer background color through module param drm/sti: Remove local fbdev emulation Kconfig option drm/sti: remove redundant sign extensions drm/sti: hdmi use of_get_i2c_adapter_by_node interface drm/sti: hdmi fix i2c adapter device refcounting drm/sti: Do not export symbols drm/sti: Build monolithic driver drm/sti: Use drm_crtc_vblank_*() API drm/sti: Store correct CRTC index in events drm/sti: Select FW_LOADER drm/sti: Constify function pointer structs
2015-11-13Revert "drm/rockchip: Convert the probe function to the generic ↵Mark Yao
drm_of_component_probe()" This reverts commit 52f5eb60940de889ce98a876f6933b574ead3225. Rockchip drm can't work with generic drm_of_component_probe now Signed-off-by: Mark Yao <mark.yao@rock-chips.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-11-13drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() ↵Ville Syrjälä
wasn't called Seems the crtc helpers call drm_calc_timestamping_constants() unconditionally even if the driver didn't initialize vblank support by calling drm_vblank_init(). That used to be OK since the constants were stored under drm_crtc. However I broke this with commit eba1f35dfe14 ("drm: Move timestamping constants into drm_vblank_crtc") when I moved the constants to live inside the drm_vblank_crtc struct instead. If drm_vblank_init() isn't called, we don't allocate these structures, and so drm_calc_timestamping_constants() will oops. Fix it by adding a check into drm_calc_timestamping_constants() to see if vblank support was initialized at all. And to keep in line with other such checks, also toss in a check and warn for the case where vblank support was initialized, but the wrong number of crtcs was specified. Fixes the following sort of oops: BUG: unable to handle kernel NULL pointer dereference at 00000000000000b0 IP: [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm] PGD 0 Oops: 0002 [#1] SMP Modules linked in: sr_mod cdrom mgag200(+) i2c_algo_bit drm_kms_helper ahci syscopyarea sysfillrect sysimgblt libahci fb_sys_fops bnx2x ttm tg3(+) mdio drm ptp sd_mod libata i2c_core pps_core libcrc32c hpsa dm_mirror dm_region_hash dm_log dm_mod CPU: 0 PID: 418 Comm: kworker/0:2 Not tainted 4.3.0+ #1 Hardware name: HP ProLiant DL380 Gen9, BIOS P89 06/09/2015 Workqueue: events work_for_cpu_fn task: ffff88046ca95500 ti: ffff88007830c000 task.ti: ffff88007830c000 RIP: 0010:[<ffffffffa014b266>] [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm] RSP: 0018:ffff88007830f4e8 EFLAGS: 00010246 RAX: 0000000000fe4c00 RBX: ffff88006a849160 RCX: 0000000000000540 RDX: 0000000000000000 RSI: 000000000000fde8 RDI: ffff88006a849000 RBP: ffff88007830f518 R08: ffff88007830c000 R09: 00000001b87e3712 R10: 00000000000050c4 R11: 0000000000000000 R12: 0000000000fe4c00 R13: ffff88006a849000 R14: 0000000000000000 R15: 000000000000fde8 FS: 0000000000000000(0000) GS:ffff88046f800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000b0 CR3: 00000000019d6000 CR4: 00000000001406f0 Stack: ffff88007830f518 ffff88006a849000 ffff880c69b90340 ffff880c69b90000 ffff880c69b90348 ffff880c69b90340 ffff88007830f748 ffffffffa042f7e7 ffff88006a849090 0000000000000000 ffff88006a849160 0000000000000000 Call Trace: [<ffffffffa042f7e7>] drm_crtc_helper_set_mode+0x3d7/0x4b0 [drm_kms_helper] [<ffffffffa04307d4>] drm_crtc_helper_set_config+0x8d4/0xb10 [drm_kms_helper] [<ffffffffa01548d4>] drm_mode_set_config_internal+0x64/0x100 [drm] [<ffffffffa043c342>] drm_fb_helper_pan_display+0xa2/0x280 [drm_kms_helper] [<ffffffff81392c7b>] fb_pan_display+0xbb/0x170 [<ffffffff8138cf70>] bit_update_start+0x20/0x50 [<ffffffff8138b81b>] fbcon_switch+0x39b/0x590 [<ffffffff8140a3d0>] redraw_screen+0x1a0/0x240 [<ffffffff8140b30e>] do_bind_con_driver+0x2ee/0x310 [<ffffffff8140b651>] do_take_over_console+0x141/0x1b0 [<ffffffff81387377>] do_fbcon_takeover+0x57/0xb0 [<ffffffff8138c98b>] fbcon_event_notify+0x60b/0x750 [<ffffffff810a5599>] notifier_call_chain+0x49/0x70 [<ffffffff810a58dd>] __blocking_notifier_call_chain+0x4d/0x70 [<ffffffff810a5916>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff8139282b>] fb_notifier_call_chain+0x1b/0x20 [<ffffffff81394881>] register_framebuffer+0x1f1/0x330 [<ffffffffa043d9aa>] drm_fb_helper_initial_config+0x27a/0x3d0 [drm_kms_helper] [<ffffffffa0469b4d>] mgag200_fbdev_init+0xdd/0xf0 [mgag200] [<ffffffffa0468586>] mgag200_modeset_init+0x176/0x1e0 [mgag200] [<ffffffffa0464659>] mgag200_driver_load+0x3f9/0x580 [mgag200] [<ffffffffa014e067>] drm_dev_register+0xa7/0xb0 [drm] [<ffffffffa015054f>] drm_get_pci_dev+0x8f/0x1e0 [drm] [<ffffffffa046937b>] mga_pci_probe+0x9b/0xc0 [mgag200] [<ffffffff813662d5>] local_pci_probe+0x45/0xa0 [<ffffffff8109afe4>] work_for_cpu_fn+0x14/0x20 [<ffffffff8109e13c>] process_one_work+0x14c/0x3c0 [<ffffffff8109eaa4>] worker_thread+0x244/0x470 [<ffffffff8168bfba>] ? __schedule+0x2aa/0x760 [<ffffffff8109e860>] ? rescuer_thread+0x310/0x310 [<ffffffff810a4438>] kthread+0xd8/0xf0 [<ffffffff810a4360>] ? kthread_park+0x60/0x60 [<ffffffff8169030f>] ret_from_fork+0x3f/0x70 [<ffffffff810a4360>] ? kthread_park+0x60/0x60 Code: f6 31 d2 41 89 c2 8b 83 b4 00 00 00 0f af c1 48 98 48 69 c0 40 42 0f 00 48 f7 f6 f6 43 74 10 41 89 c4 75 26 f6 05 9a 6f 03 00 01 <45> 89 96 b0 00 00 00 45 89 a6 ac 00 00 00 75 35 48 83 c4 08 5b RIP [<ffffffffa014b266>] drm_calc_timestamping_constants+0x86/0x130 [drm] RSP <ffff88007830f4e8> CR2: 00000000000000b0 Cc: Jeff Moyer <jmoyer@redhat.com> Reported-by: Jeff Moyer <jmoyer@redhat.com> References: http://lists.freedesktop.org/archives/dri-devel/2015-November/094217.html Fixes: eba1f35dfe14 ("drm: Move timestamping constants into drm_vblank_crtc") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-11-13Merge tag 'topic/drm-fixes-2015-11-11' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes Single fix for uapi. * tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel: drm: Use userspace compatible type in fourcc_mod_code macro
2015-11-12Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull misc block fixes from Jens Axboe: "Stuff that got collected after the merge window opened. This contains: - NVMe: - Fix for non-striped transfer size setting for NVMe from Sathyavathi. - (Some) support for the weird Apple nvme controller in the macbooks. From Stephan Günther. - The error value leak for dax from Al. - A few minor blk-mq tweaks from me. - Add the new linux-block@vger.kernel.org mailing list to the MAINTAINERS file. - Discard fix for brd, from Jan. - A kerneldoc warning for block core from Randy. - An older fix from Vivek, converting a WARN_ON() to a rate limited printk when a device is hot removed with dirty inodes" * 'for-linus' of git://git.kernel.dk/linux-block: block: don't hardcode blk_qc_t -> tag mask dax_io(): don't let non-error value escape via retval instead of EFAULT block: fix blk-core.c kernel-doc warning fs/block_dev.c: Remove WARN_ON() when inode writeback fails NVMe: add support for Apple NVMe controller NVMe: use split lo_hi_{read,write}q blk-mq: mark __blk_mq_complete_request() static MAINTAINERS: add reference to new linux-block list NVMe: Increase the max transfer size when mdts is 0 brd: Refuse improperly aligned discard requests
2015-11-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem fixes from James Morris: "This includes several fixes for TPM, as well as a fix for the x.509 certificate parser to address CVE-2015-5327" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: X.509: Fix the time validation [ver #2] tpm: fix compat 'ppi' link handling in tpm_chip_register() tpm: fix missing migratable flag in sealing functionality for TPM2 TPM: revert the list handling logic fixed in 398a1e7 TPM: Avoid reference to potentially freed memory tpm_tis: restore IRQ vector in IO memory after failed probing tpm_tis: free irq after probing
2015-11-12Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes and clean-ups from Catalin Marinas: "Here's a second pull request for this merging window with some fixes/clean-ups: - __cmpxchg_double*() return type fix to avoid truncation of a long to int and subsequent logical "not" in cmpxchg_double() misinterpreting the operation success/failure - BPF fixes for mod and div by zero - Fix compilation with STRICT_MM_TYPECHECKS enabled - VDSO build fix without libgcov - Some static and __maybe_unused annotations - Kconfig clean-up (FRAME_POINTER) - defconfig update for CRYPTO_CRC32_ARM64" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: suspend: make hw_breakpoint_restore static arm64: mmu: make split_pud and fixup_executable static arm64: smp: make of_parse_and_init_cpus static arm64: use linux/types.h in kvm.h arm64: build vdso without libgcov arm64: mark cpus_have_hwcap as __maybe_unused arm64: remove redundant FRAME_POINTER kconfig option and force to select it arm64: fix R/O permissions of FDT mapping arm64: fix STRICT_MM_TYPECHECKS issue in PTE_CONT manipulation arm64: bpf: fix mod-by-zero case arm64: bpf: fix div-by-zero case arm64: Enable CRYPTO_CRC32_ARM64 in defconfig arm64: cmpxchg_dbl: fix return value type
2015-11-12Merge tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linuxLinus Torvalds
Pull h8300 updates from Yoshinori Sato: "Some bug fixes" * tag 'for-4.4' of git://git.osdn.jp/gitroot/uclinux-h8/linux: h8300: enable CLKSRC_OF h8300: Don't set CROSS_COMPILE unconditionally asm-generic: {get,put}_user ptr argument evaluate only 1 time h8300: bit io fix h8300: zImage fix h8300: register address fix h8300: Fix alignment for .data h8300: unaligned divcr register support.
2015-11-12Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull second batch of kvm updates from Paolo Bonzini: "Four changes: - x86: work around two nasty cases where a benign exception occurs while another is being delivered. The endless stream of exceptions causes an infinite loop in the processor, which not even NMIs or SMIs can interrupt; in the virt case, there is no possibility to exit to the host either. - x86: support for Skylake per-guest TSC rate. Long supported by AMD, the patches mostly move things from there to common arch/x86/kvm/ code. - generic: remove local_irq_save/restore from the guest entry and exit paths when context tracking is enabled. The patches are a few months old, but we discussed them again at kernel summit. Andy will pick up from here and, in 4.5, try to remove it from the user entry/exit paths. - PPC: Two bug fixes, see merge commit 370289756becc for details" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits) KVM: x86: rename update_db_bp_intercept to update_bp_intercept KVM: svm: unconditionally intercept #DB KVM: x86: work around infinite loop in microcode when #AC is delivered context_tracking: avoid irq_save/irq_restore on guest entry and exit context_tracking: remove duplicate enabled check KVM: VMX: Dump TSC multiplier in dump_vmcs() KVM: VMX: Use a scaled host TSC for guest readings of MSR_IA32_TSC KVM: VMX: Setup TSC scaling ratio when a vcpu is loaded KVM: VMX: Enable and initialize VMX TSC scaling KVM: x86: Use the correct vcpu's TSC rate to compute time scale KVM: x86: Move TSC scaling logic out of call-back read_l1_tsc() KVM: x86: Move TSC scaling logic out of call-back adjust_tsc_offset() KVM: x86: Replace call-back compute_tsc_offset() with a common function KVM: x86: Replace call-back set_tsc_khz() with a common function KVM: x86: Add a common TSC scaling function KVM: x86: Add a common TSC scaling ratio field in kvm_vcpu_arch KVM: x86: Collect information for setting TSC scaling ratio KVM: x86: declare a few variables as __read_mostly KVM: x86: merge handle_mmio_page_fault and handle_mmio_page_fault_common KVM: PPC: Book3S HV: Don't dynamically split core when already split ...
2015-11-12perf symbols: Allow forcing reading of non-root owned files by rootArnaldo Carvalho de Melo
When the root user tries to read a file owned by some other user we get: # ls -la perf.data -rw-------. 1 acme acme 20032 Nov 12 15:50 perf.data # perf report File perf.data not owned by current user or root (use -f to override) # perf report -f | grep -v ^# | head -2 30.96% ls [kernel.vmlinux] [k] do_set_pte 28.24% ls libc-2.20.so [.] intel_check_word # That wasn't happening when the symbol code tried to read a JIT map, where the same check was done but no forcing was possible, fix it. Reported-by: Brendan Gregg <brendan.d.gregg@gmail.com> Tested-by: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://permalink.gmane.org/gmane.linux.kernel.perf.user/2380 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-12perf hists browser: The dso can be obtained from popup_action->ms.map->dsoArnaldo Carvalho de Melo
So no need to have a 'dso' member in 'popup_action', remove it as no code is using it, already. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-76a6s0007slug0op0wkl6o8b@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-12perf hists browser: Fix 'd' hotkey action to filter by DSOArnaldo Carvalho de Melo
When pressing 'd' the expected action is to filter all entries by the DSO in the current entry, but for that the action->map needs to be set, and only action->dso was being set, fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes: 045b80dd0340 ("perf hists browser: Use the map to determine if a DSO is being used as a kernel") Link: http://lkml.kernel.org/n/tip-xqhfzgoblq49lk5h5u82atro@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-12perf symbols: Rebuild rbtree when adjusting symbols for kcoreAdrian Hunter
Normally symbols are read from the DSO and adjusted, if need be, so that the symbol start matches the file offset in the DSO file (we want the file offset because that is what we know from MMAP events). That is done by dso__load_sym() which inserts the symbols *after* adjusting them. In the case of kcore, the symbols have been read from kallsyms and the symbol start is the memory address. The symbols have to be adjusted to match the kcore file offsets. dso__split_kallsyms_for_kcore() does that, but now the adjustment is being done *after* the symbols have been inserted. It appears dso__split_kallsyms_for_kcore() was assuming that changing the symbol start would not change the order in the rbtree - which is, of course, not guaranteed. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Wang Nan <wangnan0@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/563CB241.2090701@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-12tools: Add a "make all" ruleKamal Mostafa
Signed-off-by: Kamal Mostafa <kamal@canonical.com> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Pali Rohar <pali.rohar@gmail.com> Cc: Roberta Dobrescu <roberta.dobrescu@gmail.com> Link: http://lkml.kernel.org/r/1447280736-2161-2-git-send-email-kamal@canonical.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-12stmmac: avoid ipq806x constant overflow warningArnd Bergmann
Building dwmac-ipq806x on a 64-bit architecture produces a harmless warning from gcc: stmmac/dwmac-ipq806x.c: In function 'ipq806x_gmac_probe': include/linux/bitops.h:6:19: warning: overflow in implicit constant conversion [-Woverflow] val = QSGMII_PHY_CDR_EN | stmmac/dwmac-ipq806x.c:333:8: note: in expansion of macro 'QSGMII_PHY_CDR_EN' #define QSGMII_PHY_CDR_EN BIT(0) #define BIT(nr) (1UL << (nr)) This is a result of the type conversion rules in C, when we take the logical OR of multiple different types. In particular, we have and unsigned long QSGMII_PHY_CDR_EN == BIT(0) == (1ul << 0) == 0x0000000000000001ul and a signed int 0xC << QSGMII_PHY_TX_DRV_AMP_OFFSET == 0xc0000000 which together gives a signed long value 0xffffffffc0000001l and when this is passed into a function that takes an unsigned int type, gcc warns about the signed overflow and the loss of the upper 32-bits that are all ones. This patch adds 'ul' type modifiers to the literal numbers passed in here, so now the expression remains an 'unsigned long' with the upper bits all zero, and that avoids the signed overflow and the warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: b1c17215d718 ("stmmac: add ipq806x glue layer") Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-12ALSA: pci: depend on ZONE_DMADan Williams
There are several sound drivers that 'select ZONE_DMA'. This is backwards as ZONE_DMA is an architecture capability exported to drivers. Switch the polarity of the dependency to disable these drivers when the architecture does not support ZONE_DMA. This was discovered in the context of testing/enabling devm_memremap_pages() which depends on ZONE_DEVICE. ZONE_DEVICE in turn depends on !ZONE_DMA. Reported-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-11-12Merge tag 'pm+acpi-4.4-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management and ACPI updates from Rafael Wysocki: "The only new feature in this batch is support for the ACPI _CCA device configuration object, which it a pre-requisite for future ACPI PCI support on ARM64, but should not affect the other architectures. The rest is fixes and cleanups, mostly in cpufreq (including intel_pstate), the Operating Performace Points (OPP) framework and tools (cpupower and turbostat). Specifics: - Support for the ACPI _CCA configuration object intended to tell the OS whether or not a bus master device supports hardware managed cache coherency and a new set of functions to allow drivers to check the cache coherency support for devices in a platform firmware interface agnostic way (Suravee Suthikulpanit, Jeremy Linton). - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X (Aaron Lu, Hans de Goede). - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers (Jon Medhurst, Nicolas Pitre). - kfree()-related fixup for the recently introduced CPPC cpufreq frontend (Markus Elfring). - intel_pstate fix reducing kernel log noise on systems where P-states are managed by hardware (Prarit Bhargava). - intel_pstate maintainers information update (Srinivas Pandruvada). - cpufreq core optimization related to the handling of delayed work items used by governors (Viresh Kumar). - Locking fixes and cleanups of the Operating Performance Points (OPP) framework (Viresh Kumar). - Generic power domains framework cleanups (Lina Iyer). - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan, Thomas Renninger). - turbostat tool updates (Len Brown)" * tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) PCI: ACPI: Add support for PCI device DMA coherency PCI: OF: Move of_pci_dma_configure() to pci_dma_configure() of/pci: Fix pci_get_host_bridge_device leak device property: ACPI: Remove unused DMA APIs device property: ACPI: Make use of the new DMA Attribute APIs device property: Adding DMA Attribute APIs for Generic Devices ACPI: Adding DMA Attribute APIs for ACPI Device device property: Introducing enum dev_dma_attr ACPI: Honor ACPI _CCA attribute setting cpufreq: CPPC: Delete an unnecessary check before the function call kfree() PM / OPP: Add opp_rcu_lockdep_assert() to _find_device_opp() PM / OPP: Hold dev_opp_list_lock for writers PM / OPP: Protect updates to list_dev with mutex PM / OPP: Propagate error properly from dev_pm_opp_set_sharing_cpus() cpufreq: s5pv210-cpufreq: fix wrong do_div() usage MAINTAINERS: update for intel P-state driver Creating a common structure initialization pattern for struct option cpupower: Enable disabled Cstates if they are below max latency cpupower: Remove debug message when using cpupower idle-set -D switch cpupower: cpupower monitor reports uninitialized values for offline cpus ...
2015-11-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for your net tree. This large batch that includes fixes for ipset, netfilter ingress, nf_tables dynamic set instantiation and a longstanding Kconfig dependency problem. More specifically, they are: 1) Add missing check for empty hook list at the ingress hook, from Florian Westphal. 2) Input and output interface are swapped at the ingress hook, reported by Patrick McHardy. 3) Resolve ipset extension alignment issues on ARM, patch from Jozsef Kadlecsik. 4) Fix bit check on bitmap in ipset hash type, also from Jozsef. 5) Release buckets when all entries have expired in ipset hash type, again from Jozsef. 6) Oneliner to initialize conntrack tuple object in the PPTP helper, otherwise the conntrack lookup may fail due to random bits in the structure holes, patch from Anthony Lineham. 7) Silence a bogus gcc warning in nfnetlink_log, from Arnd Bergmann. 8) Fix Kconfig dependency problems with TPROXY, socket and dup, also from Arnd. 9) Add __netdev_alloc_pcpu_stats() to allow creating percpu counters from atomic context, this is required by the follow up fix for nf_tables. 10) Fix crash from the dynamic set expression, we have to add new clone operation that should be defined when a simple memcpy is not enough. This resolves a crash when using per-cpu counters with new Patrick McHardy's flow table nft support. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-12r8169: fix kasan reported skb use-after-free.françois romieu
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Reported-by: Dave Jones <davej@codemonkey.org.uk> Fixes: d7d2d89d4b0af ("r8169: Add software counter for multicast packages") Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Corinna Vinschen <vinschen@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-12thermal: power_allocator: Use temperature reading from tzKapileshwar Singh
All thermal governors use the temperature value stored in struct thermal_zone_device. thermal_zone_device->temperature power_allocator governor should not deviate from this and use the same. Cc: Javi Merino <javi.merino@arm.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Kurtz <djkurtz@chromium.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Javi Merino <javi.merino@arm.com> Reported-by: Sugumar Natarajan <sugumar.natarajan@arm.com> Signed-off-by: Kapileshwar Singh <kapileshwar.singh@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12thermal: rockchip: Support the RK3368 SoCs in thermal driverCaesar Wang
The RK3368 SoCs support to 2 channel TS-ADC, the temperature criteria of each channel can be configurable. The system has two Temperature Sensors, channel 0 is for CPU, and channel 1 is for GPU. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12thermal: rockchip: consistently use int for temperaturesCaesar Wang
As Temperature is currently represented as int not long in the thermal framework since use int intead of unsigned long/long to represent temperature to avoid bogus overheat detection when negative temperature reported. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12thermal: rockchip: Add the sort mode for adc value increment or decrementCaesar Wang
The conversion table has the adc value and temperature. In fact, the adc value only has the increment or decrement mode in conversion table. Moment, we can add the sort mode to be better support the *code_to_temp* for differenr SoCs. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12thermal: rockchip: improve the conversion functionCaesar Wang
We should make the conversion table in as a parameter since the different SoCs have the different conversionion table. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12ARM: OMAP2+: remove custom abort handler for t410Lucas Stach
This is not needed anymore. Handling a potentially pending imprecise external abort left behind by the bootloader is now done in a slightly safer way inside the common ARM startup code. With the recent changes to abort handling, this issue got fixed by 57df53808534 ("ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init"). Signed-off-by: Lucas Stach <l.stach@pengutronix.de> [tony@atomide.com: updated comments to describe what fixed the issue] Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12thermal: rockchip: trivial: fix typo in commitCaesar Wang
Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12thermal: rockchip: better to compatible the driver for different SoCsCaesar Wang
The current driver is default to register the two thermal sensors in probe since some SoCs maybe only have one sensor for thermal. In some cases, the channel 0 is not always the cpu or gpu sensor. So add the channel can be configured for sensors. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12dt-bindings: rockchip-thermal: Support the RK3368 SoCs compatibleCaesar Wang
This patchset attempts to new compatible for thermal founding on RK3368 SoCs. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixesTony Lindgren
2015-11-12ARM: OMAP: DRA7: hwmod: Add data for McASP3Peter Ujfalusi
McASP3 is used by default on DRA7x based boards for audio. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12ARM: OMAP2+: hwmod: Add hwmod flag for HWMOD_OPT_CLKS_NEEDEDPeter Ujfalusi
Some module needs more than one functional clock in order to be accessible, like the McASPs found in DRA7xx family. This flag will indicate that the opt_clks need to be handled at the same time as the main_clk for the given hwmod, ensuring that all needed clocks are enabled before we try to access the module's address space. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12ARM: dts: dra7: Fix McASP3 node regarding to clocksPeter Ujfalusi
McASP node needs to list all mandatory clocks: gfclk and ahclkx Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12libnvdimm: documentation clarificationsKonrad Rzeszutek Wilk
A bunch of changes that I hope will help in understanding it better for first-time readers. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-11-12libnvdimm, pmem: fix size trim in pmem_direct_access()Dan Williams
This masking prevents access to the end of the device via dax_do_io(), and is unnecessary as arch_add_memory() would have rejected an unaligned allocation. Cc: <stable@vger.kernel.org> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>