- 13 Dec, 2014 9 commits
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Davidlohr Bueso authored
No brainer conversion: collect_procs_file() only schedules a process for later kill, share the lock, similarly to the anon vma variant. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Acked-by:
Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
__xip_unmap() will remove the xip sparse page from the cache and take down pte mapping, without altering the interval tree, thus share the i_mmap_rwsem when searching for the ptes to unmap. Additionally, tidy up the function a bit and make variables only local to the interval tree walk loop. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Acked-by:
Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
Both register and unregister call build_map_info() in order to create the list of mappings before installing or removing breakpoints for every mm which maps file backed memory. As such, there is no reason to hold the i_mmap_rwsem exclusively, so share it and allow concurrent readers to build the mapping data. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Acked-by:
Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Hugh Dickins <hughd@google.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
Similarly to the anon memory counterpart, we can share the mapping's lock ownership as the interval tree is not modified when doing doing the walk, only the file page. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Acked-by:
Rik van Riel <riel@redhat.com> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Acked-by:
Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
The i_mmap_mutex is a close cousin of the anon vma lock, both protecting similar data, one for file backed pages and the other for anon memory. To this end, this lock can also be a rwsem. In addition, there are some important opportunities to share the lock when there are no tree modifications. This conversion is straightforward. For now, all users take the write lock. [sfr@canb.auug.org.au: update fremap.c] Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Reviewed-by:
Rik van Riel <riel@redhat.com> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Acked-by:
Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
Convert all open coded mutex_lock/unlock calls to the i_mmap_[lock/unlock]_write() helpers. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Acked-by:
Rik van Riel <riel@redhat.com> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Acked-by:
Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Davidlohr Bueso authored
This series is a continuation of the conversion of the i_mmap_mutex to rwsem, following what we have for the anon memory counterpart. With Hugh's feedback from the first iteration. Ultimately, the most obvious paths that require exclusive ownership of the lock is when we modify the VMA interval tree, via vma_interval_tree_insert() and vma_interval_tree_remove() families. Cases such as unmapping, where the ptes content is changed but the tree remains untouched should make it safe to share the i_mmap_rwsem. As such, the code of course is straightforward, however the devil is very much in the details. While its been tested on a number of workloads without anything exploding, I would not be surprised if there are some less documented/known assumptions about the lock that could suffer from these changes. Or maybe I'm just missing something, but either way I believe its at the point where it could use more eyes and hopefully some time in linux-next. Because the lock type conversion is the heart of this patchset, its worth noting a few comparisons between mutex vs rwsem (xadd): (i) Same size, no extra footprint. (ii) Both have CONFIG_XXX_SPIN_ON_OWNER capabilities for exclusive lock ownership. (iii) Both can be slightly unfair wrt exclusive ownership, with writer lock stealing properties, not necessarily respecting FIFO order for granting the lock when contended. (iv) Mutexes can be slightly faster than rwsems when the lock is non-contended. (v) Both suck at performance for debug (slowpaths), which shouldn't matter anyway. Sharing the lock is obviously beneficial, and sem writer ownership is close enough to mutexes. The biggest winner of these changes is migration. As for concrete numbers, the following performance results are for a 4-socket 60-core IvyBridge-EX with 130Gb of RAM. Both alltests and disk (xfs+ramdisk) workloads of aim7 suite do quite well with this set, with a steady ~60% throughput (jpm) increase for alltests and up to ~30% for disk for high amounts of concurrency. Lower counts of workload users (< 100) does not show much difference at all, so at least no regressions. 3.18-rc1 3.18-rc1-i_mmap_rwsem alltests-100 17918.72 ( 0.00%) 28417.97 ( 58.59%) alltests-200 16529.39 ( 0.00%) 26807.92 ( 62.18%) alltests-300 16591.17 ( 0.00%) 26878.08 ( 62.00%) alltests-400 16490.37 ( 0.00%) 26664.63 ( 61.70%) alltests-500 16593.17 ( 0.00%) 26433.72 ( 59.30%) alltests-600 16508.56 ( 0.00%) 26409.20 ( 59.97%) alltests-700 16508.19 ( 0.00%) 26298.58 ( 59.31%) alltests-800 16437.58 ( 0.00%) 26433.02 ( 60.81%) alltests-900 16418.35 ( 0.00%) 26241.61 ( 59.83%) alltests-1000 16369.00 ( 0.00%) 26195.76 ( 60.03%) alltests-1100 16330.11 ( 0.00%) 26133.46 ( 60.03%) alltests-1200 16341.30 ( 0.00%) 26084.03 ( 59.62%) alltests-1300 16304.75 ( 0.00%) 26024.74 ( 59.61%) alltests-1400 16231.08 ( 0.00%) 25952.35 ( 59.89%) alltests-1500 16168.06 ( 0.00%) 25850.58 ( 59.89%) alltests-1600 16142.56 ( 0.00%) 25767.42 ( 59.62%) alltests-1700 16118.91 ( 0.00%) 25689.58 ( 59.38%) alltests-1800 16068.06 ( 0.00%) 25599.71 ( 59.32%) alltests-1900 16046.94 ( 0.00%) 25525.92 ( 59.07%) alltests-2000 16007.26 ( 0.00%) 25513.07 ( 59.38%) disk-100 7582.14 ( 0.00%) 7257.48 ( -4.28%) disk-200 6962.44 ( 0.00%) 7109.15 ( 2.11%) disk-300 6435.93 ( 0.00%) 6904.75 ( 7.28%) disk-400 6370.84 ( 0.00%) 6861.26 ( 7.70%) disk-500 6353.42 ( 0.00%) 6846.71 ( 7.76%) disk-600 6368.82 ( 0.00%) 6806.75 ( 6.88%) disk-700 6331.37 ( 0.00%) 6796.01 ( 7.34%) disk-800 6324.22 ( 0.00%) 6788.00 ( 7.33%) disk-900 6253.52 ( 0.00%) 6750.43 ( 7.95%) disk-1000 6242.53 ( 0.00%) 6855.11 ( 9.81%) disk-1100 6234.75 ( 0.00%) 6858.47 ( 10.00%) disk-1200 6312.76 ( 0.00%) 6845.13 ( 8.43%) disk-1300 6309.95 ( 0.00%) 6834.51 ( 8.31%) disk-1400 6171.76 ( 0.00%) 6787.09 ( 9.97%) disk-1500 6139.81 ( 0.00%) 6761.09 ( 10.12%) disk-1600 4807.12 ( 0.00%) 6725.33 ( 39.90%) disk-1700 4669.50 ( 0.00%) 5985.38 ( 28.18%) disk-1800 4663.51 ( 0.00%) 5972.99 ( 28.08%) disk-1900 4674.31 ( 0.00%) 5949.94 ( 27.29%) disk-2000 4668.36 ( 0.00%) 5834.93 ( 24.99%) In addition, a 67.5% increase in successfully migrated NUMA pages, thus improving node locality. The patch layout is simple but designed for bisection (in case reversion is needed if the changes break upstream) and easier review: o Patches 1-4 convert the i_mmap lock from mutex to rwsem. o Patches 5-10 share the lock in specific paths, each patch details the rationale behind why it should be safe. This patchset has been tested with: postgres 9.4 (with brand new hugetlb support), hugetlbfs test suite (all tests pass, in fact more tests pass with these changes than with an upstream kernel), ltp, aim7 benchmarks, memcached and iozone with the -B option for mmap'ing. *Untested* paths are nommu, memory-failure, uprobes and xip. This patch (of 8): Various parts of the kernel acquire and release this mutex, so add i_mmap_lock_write() and immap_unlock_write() helper functions that will encapsulate this logic. The next patch will make use of these. Signed-off-by:
Davidlohr Bueso <dbueso@suse.de> Reviewed-by:
Rik van Riel <riel@redhat.com> Acked-by:
"Kirill A. Shutemov" <kirill@shutemov.name> Acked-by:
Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Xiubo Li authored
My current email address will be gone shortly, update my email to be a gmail one. Signed-off-by:
Xiubo Li <Li.Xiubo@freescale.com> Cc: Timur Tabi <timur@tabi.org> Cc: Takashi Iwai <tiwai@suse.de> Acked-by:
Nicolin Chen <nicoleotsuka@gmail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Guenter Roeck authored
Commit 7654e9d4 ("drivers/rtc/rtc-snvs: fix suspend/resume") replaces SIMPLE_DEV_PM_OPS with direct declaration of snvs_rtc_pm_ops, but does so outside #ifdef CONFIG_PM_SLEEP. This causes the driver build to fail if CONFIG_PM_SLEEP is not configured. Fixes: 7654e9d4 ("drivers/rtc/rtc-snvs: fix suspend/resume") Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Cc: Sanchayan Maity <maitysanchayan@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 12 Dec, 2014 20 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linuxLinus Torvalds authored
Pull pstore update #2 from Tony Luck: "Couple of pstore-ram enhancements to allow use of different memory attributes" * tag 'please-pull-morepstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore-ram: Allow optional mapping with pgprot_noncached pstore-ram: Fix hangs by using write-combine mappings
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs update from Chris Mason: "From a feature point of view, most of the code here comes from Miao Xie and others at Fujitsu to implement scrubbing and replacing devices on raid56. This has been in development for a while, and it's a big improvement. Filipe and Josef have a great assortment of fixes, many of which solve problems corruptions either after a crash or in error conditions. I still have a round two from Filipe for next week that solves corruptions with discard and block group removal" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (62 commits) Btrfs: make get_caching_control unconditionally return the ctl Btrfs: fix unprotected deletion from pending_chunks list Btrfs: fix fs mapping extent map leak Btrfs: fix memory leak after block remove + trimming Btrfs: make btrfs_abort_transaction consider existence of new block groups Btrfs: fix race between writing free space cache and trimming Btrfs: fix race between fs trimming and block group remove/allocation Btrfs, replace: enable dev-replace for raid56 Btrfs: fix freeing used extents after removing empty block group Btrfs: fix crash caused by block group removal Btrfs: fix invalid block group rbtree access after bg is removed Btrfs, raid56: fix use-after-free problem in the final device replace procedure on raid56 Btrfs, replace: write raid56 parity into the replace target device Btrfs, replace: write dirty pages into the replace target device Btrfs, raid56: support parity scrub on raid56 Btrfs, raid56: use a variant to record the operation type Btrfs, scrub: repair the common data on RAID5/6 if it is corrupted Btrfs, raid56: don't change bbio and raid_map Btrfs: remove unnecessary code of stripe_index assignment in __btrfs_map_block Btrfs: remove noused bbio_ret in __btrfs_map_block in condition ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID updates from Jiri Kosina: - i2c-hid race condition fix from Jean-Baptiste Maneyrol - Logitech driver now supports vendor-specific HID++ protocol, allowing us to deliver a full multitouch support on wider range of Logitech touchpads. Written by Benjamin Tissoires - MS Surface Pro 3 Type Cover support added by Alan Wu - RMI touchpad support improvements from Andrew Duggan - a lot of updates to Wacom driver from Jason Gerecke and Ping Cheng - various small fixes all over the place * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (56 commits) HID: rmi: The address of query8 must be calculated based on which query registers are present HID: rmi: Check for additional ACM registers appended to F11 data report HID: i2c-hid: prevent buffer overflow in early IRQ HID: logitech-hidpp: disable io in probe error path HID: logitech-hidpp: add boundary check for name retrieval HID: logitech-hidpp: check name retrieval return code HID: logitech-hidpp: do not return the name length HID: wacom: Report input events for each finger on generic devices HID: wacom: Initialize MT slots for generic devices at post_parse_hid HID: wacom: Update maximum X/Y accounding to outbound offset HID: wacom: Add support for DTU-1031X HID: wacom: add defines for new Cintiq and DTU outbound tracking HID: wacom: fix freeze on open when autosuspend is on HID: wacom: re-add accidentally dropped Lenovo PID HID: make hid_report_len as a static inline function in hid.h HID: wacom: Consult the application usage when determining field type HID: wacom: PAD is independent with pen/touch HID: multitouch: Add quirk for VTL touch panels HID: i2c-hid: fix race condition reading reports HID: wacom: Add angular resolution data to some ABS axes ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds authored
Pull trivial tree update from Jiri Kosina: "Usual stuff: documentation updates, printk() fixes, etc" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits) intel_ips: fix a type in error message cpufreq: cpufreq-dt: Move newline to end of error message ps3rom: fix error return code treewide: fix typo in printk and Kconfig ARM: dts: bcm63138: change "interupts" to "interrupts" Replace mentions of "list_struct" to "list_head" kernel: trace: fix printk message scsi: mpt2sas: fix ioctl in comment zbud, zswap: change module author email clocksource: Fix 'clcoksource' typo in comment arm: fix wording of "Crotex" in CONFIG_ARCH_EXYNOS3 help gpio: msm-v1: make boolean argument more obvious usb: Fix typo in usb-serial-simple.c PCI: Fix comment typo 'COMFIG_PM_OPS' powerpc: Fix comment typo 'CONIFG_8xx' powerpc: Fix comment typos 'CONFiG_ALTIVEC' clk: st: Spelling s/stucture/structure/ isci: Spelling s/stucture/structure/ usb: gadget: zero: Spelling s/infrastucture/infrastructure/ treewide: Fix company name in module descriptions ...
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git://git.infradead.org/linux-ubifsLinus Torvalds authored
Pull UBI/UBIFS updates from Artem Bityutskiy: "This includes the following UBI/UBIFS changes: - UBI debug messages now include the UBI device number. This change is responsible for the big diffstat since it touched every debugging print statement. - An Xattr bug-fix which fixes SELinux support - Several error path fixes in UBI/UBIFS" * tag 'upstream-3.19-rc1' of git://git.infradead.org/linux-ubifs: UBI: Fix invalid vfree() UBI: Fix double free after do_sync_erase() UBIFS: fix a couple bugs in UBIFS xattr length calculation UBI: vtbl: Use ubi_eba_atomic_leb_change() UBI: Extend UBI layer debug/messaging capabilities UBIFS: fix budget leak in error path
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git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfsLinus Torvalds authored
Pull xfs update from Dave Chinner: "There's relatively little change in this update; it is mainly bug fixes, cleanups and more of the on-going libxfs restructuring and on-disk format header consolidation work. Details: - more on-disk format header consolidation - move some structures shared with userspace to libxfs - new per-mount workqueue to fix for deadlocks between nested loop mounted filesystems - various bug fixes for ENOSPC, stats, quota off and preallocation - a bunch of compiler warning fixes for set-but-unused variables - various code cleanups" * tag 'xfs-for-linus-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (24 commits) xfs: split metadata and log buffer completion to separate workqueues xfs: fix set-but-unused warnings xfs: move type conversion functions to xfs_dir.h xfs: move ftype conversion functions to libxfs xfs: lobotomise xfs_trans_read_buf_map() xfs: active inodes stat is broken xfs: cleanup xfs_bmse_merge returns xfs: cleanup xfs_bmse_shift_one goto mess xfs: fix premature enospc on inode allocation xfs: overflow in xfs_iomap_eof_align_last_fsb xfs: fix simple_return.cocci warning in xfs_bmse_shift_one xfs: fix simple_return.cocci warning in xfs_file_readdir libxfs: fix simple_return.cocci warnings xfs: remove unnecessary null checks xfs: merge xfs_inum.h into xfs_format.h xfs: move most of xfs_sb.h to xfs_format.h xfs: merge xfs_ag.h into xfs_format.h xfs: move acl structures to xfs_format.h xfs: merge xfs_dinode.h into xfs_format.h xfs: catch invalid negative blknos in _xfs_buf_find() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 updates from Ted Ts'o: "Lots of bugs fixes, including Zheng and Jan's extent status shrinker fixes, which should improve CPU utilization and potential soft lockups under heavy memory pressure, and Eric Whitney's bigalloc fixes" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (26 commits) ext4: ext4_da_convert_inline_data_to_extent drop locked page after error ext4: fix suboptimal seek_{data,hole} extents traversial ext4: ext4_inline_data_fiemap should respect callers argument ext4: prevent fsreentrance deadlock for inline_data ext4: forbid journal_async_commit in data=ordered mode jbd2: remove unnecessary NULL check before iput() ext4: Remove an unnecessary check for NULL before iput() ext4: remove unneeded code in ext4_unlink ext4: don't count external journal blocks as overhead ext4: remove never taken branch from ext4_ext_shift_path_extents() ext4: create nojournal_checksum mount option ext4: update comments regarding ext4_delete_inode() ext4: cleanup GFP flags inside resize path ext4: introduce aging to extent status tree ext4: cleanup flag definitions for extent status tree ext4: limit number of scanned extents in status tree shrinker ext4: move handling of list of shrinkable inodes into extent status code ext4: change LRU to round-robin in extent status tree shrinker ext4: cache extent hole in extent status tree for ext4_da_map_blocks() ext4: fix block reservation for bigalloc filesystems ...
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Jiri Kosina authored
Merge branches 'for-3.19/hid-report-len', 'for-3.19/i2c-hid', 'for-3.19/lenovo', 'for-3.19/logitech', 'for-3.19/microsoft', 'for-3.19/plantronics', 'for-3.19/rmi', 'for-3.19/sony' and 'for-3.19/wacom' into for-linus
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Andrew Duggan authored
If a touchpad does not report relative data then query 6 will not be present and the address of query 8 will be one less. This patches calculates the location of query 8 instead of hardcoding the offset. Signed-off-by:
Andrew Duggan <aduggan@synaptics.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Andrew Duggan authored
If a touchpad reports the F11 data40 register then this indicates that the touchpad reports additional ACM (Accidental Contact Mitigation) data after the F11 data in the HID attention report. These additional bytes shift the position of the F30 button data causing the driver to incorrectly report button state when this functionality is present. This patch accounts for the additional data in the report. Fixes: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1398533Signed-off-by:
Andrew Duggan <aduggan@synaptics.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Jiri Kosina authored
Conflicts: drivers/hid/hid-input.c
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Gwendal Grignou authored
Before ->start() is called, bufsize size is set to HID_MIN_BUFFER_SIZE, 64 bytes. While processing the IRQ, we were asking to receive up to wMaxInputLength bytes, which can be bigger than 64 bytes. Later, when ->start is run, a proper bufsize will be calculated. Given wMaxInputLength is said to be unreliable in other part of the code, set to receive only what we can even if it results in truncated reports. Signed-off-by:
Gwendal Grignou <gwendal@chromium.org> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: stable@vger.kernel.org Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup update from Tejun Heo: "cpuset got simplified a bit. cgroup core got a fix on unified hierarchy and grew some effective css related interfaces which will be used for blkio support for writeback IO traffic which is currently being worked on" * 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: implement cgroup_get_e_css() cgroup: add cgroup_subsys->css_e_css_changed() cgroup: add cgroup_subsys->css_released() cgroup: fix the async css offline wait logic in cgroup_subtree_control_write() cgroup: restructure child_subsys_mask handling in cgroup_subtree_control_write() cgroup: separate out cgroup_calc_child_subsys_mask() from cgroup_refresh_child_subsys_mask() cpuset: lock vs unlock typo cpuset: simplify cpuset_node_allowed API cpuset: convert callback_mutex to a spinlock
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata changes from Tejun Heo: "The only interesting piece is the support for shingled drives. The changes in libata layer are minimal. All it does is identifying the new class of device and report upwards accordingly" * 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: Remove FIXME comment in atapi_request_sense() sata_rcar: Document deprecated "renesas,rcar-sata" sata_rcar: Add clocks to sata_rcar bindings ahci_sunxi: Make AHCI_HFLAG_NO_PMP flag configurable with a module option libata-scsi: Update SATL for ZAC drives libata: Implement ATA_DEV_ZAC libsas: use ata_dev_classify()
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds authored
Pull workqueue update from Tejun Heo: "Work items which may be involved in memory reclaim path may be executed by the rescuer under memory pressure. When a rescuer gets activated, it processes whatever are on the pending list and then goes back to sleep until the manager kicks it again which involves 100ms delay. This is problematic for self-requeueing work items or the ones running on ordered workqueues as there always is only one work item on the pending list when the rescuer kicks in. The execution of that work item produces more to execute but the rescuer won't see them until after the said 100ms has passed, so such workqueues would only execute one work item every 100ms under prolonged memory pressure, which BTW may be being prolonged due to the slow execution. Neil wrote up a patch which fixes this issue by keeping the rescuer working as long as the target workqueue is busy but doesn't have enough workers" * 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: allow rescuer thread to do more work. workqueue: invert the order between pool->lock and wq_mayday_lock workqueue: cosmetic update in rescuer_thread()
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpuLinus Torvalds authored
Pull percpu updates from Tejun Heo: "Nothing interesting. A patch to convert the remaining __get_cpu_var() users, another to fix non-critical off-by-one in an assertion and a cosmetic conversion to lockless_dereference() in percpu-ref. The back-merge from mainline is to receive lockless_dereference()" * 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: Replace smp_read_barrier_depends() with lockless_dereference() percpu: Convert remaining __get_cpu_var uses in 3.18-rcX percpu: off by one in BUG_ON()
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen features and fixes from David Vrabel: - Fully support non-coherent devices on ARM by introducing the mechanisms to request the hypervisor to perform the required cache maintainance operations. - A number of pciback bug fixes and cleanups. Notably a deadlock fix if a PCI device was manually uunbound and a fix for incorrectly restoring state after a function reset. - In x86 PVHVM guests, use the APIC for interrupts if this has been virtualized by the hardware. This reduces the number of interrupt- related VM exits on such hardware. * tag 'stable/for-linus-3.19-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (26 commits) Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single" xen/pci: Use APIC directly when APIC virtualization hardware is available xen/pci: Defer initialization of MSI ops on HVM guests xen-pciback: drop SR-IOV VFs when PF driver unloads xen/pciback: Restore configuration space when detaching from a guest. PCI: Expose pci_load_saved_state for public consumption. xen/pciback: Remove tons of dereferences xen/pciback: Print out the domain owning the device. xen/pciback: Include the domain id if removing the device whilst still in use driver core: Provide an wrapper around the mutex to do lockdep warnings xen/pciback: Don't deadlock when unbinding. swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single swiotlb-xen: call xen_dma_sync_single_for_device when appropriate swiotlb-xen: remove BUG_ON in xen_bus_to_phys swiotlb-xen: pass dev_addr to xen_dma_unmap_page and xen_dma_sync_single_for_cpu xen/arm: introduce GNTTABOP_cache_flush xen/arm/arm64: introduce xen_arch_need_swiotlb xen/arm/arm64: merge xen/mm32.c into xen/mm.c xen/arm: use hypercall to flush caches in map_page xen: add a dma_addr_t dev_addr argument to xen_dma_map_page ...
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS updates from Ralf Baechle: "This is an unusually large pull request for MIPS - in parts because lots of patches missed the 3.18 deadline but primarily because some folks opened the flood gates. - Retire the MIPS-specific phys_t with the generic phys_addr_t. - Improvments for the backtrace code used by oprofile. - Better backtraces on SMP systems. - Cleanups for the Octeon platform code. - Cleanups and fixes for the Loongson platform code. - Cleanups and fixes to the firmware library. - Switch ATH79 platform to use the firmware library. - Grand overhault to the SEAD3 and Malta interrupt code. - Move the GIC interrupt code to drivers/irqchip - Lots of GIC cleanups and updates to the GIC code to use modern IRQ infrastructures and features of the kernel. - OF documentation updates for the GIC bindings - Move GIC clocksource driver to drivers/clocksource - Merge GIC clocksource driver with clockevent driver. - Further updates to bring the GIC clocksource driver up to date. - R3000 TLB code cleanups - Improvments to the Loongson 3 platform code. - Convert pr_warning to pr_warn. - Merge a bunch of small lantiq and ralink fixes that have been staged/lingering inside the openwrt tree for a while. - Update archhelp for IP22/IP32 - Fix a number of issues for Loongson 1B. - New clocksource and clockevent driver for Loongson 1B. - Further work on clk handling for Loongson 1B. - Platform work for Broadcom BMIPS. - Error handling cleanups for TurboChannel. - Fixes and optimization to the microMIPS support. - Option to disable the FTLB. - Dump more relevant information on machine check exception - Change binfmt to allow arch to examine PT_*PROC headers - Support for new style FPU register model in O32 - VDSO randomization. - BCM47xx cleanups - BCM47xx reimplement the way the kernel accesses NVRAM information. - Random cleanups - Add support for ATH25 platforms - Remove pointless locking code in some PCI platforms. - Some improvments to EVA support - Minor Alchemy cleanup" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (185 commits) MIPS: Add MFHC0 and MTHC0 instructions to uasm. MIPS: Cosmetic cleanups of page table headers. MIPS: Add CP0 macros for extended EntryLo registers MIPS: Remove now unused definition of phys_t. MIPS: Replace use of phys_t with phys_addr_t. MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT PCMCIA: Alchemy Don't select 64BIT_PHYS_ADDR in Kconfig. MIPS: lib: memset: Clean up some MIPS{EL,EB} ifdefery MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO MIPS: <asm/types.h> fix indentation. MAINTAINERS: Add entry for BMIPS multiplatform kernel MIPS: Enable VDSO randomization MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration MIPS: Remove declaration of obsolete arch_init_clk_ops() MIPS: atomic.h: Reformat to fit in 79 columns MIPS: Apply `.insn' to fixup labels throughout MIPS: Fix microMIPS LL/SC immediate offsets MIPS: Kconfig: Only allow 32-bit microMIPS builds MIPS: signal.c: Fix an invalid cast in ISA mode bit handling MIPS: mm: Only build one microassembler that is suitable ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: "Some nice cleanups like removing bootmem, and removal of __get_cpu_var(). There is one patch to mm/gup.c. This is the generic GUP implementation, but is only used by us and arm(64). We have an ack from Steve Capper, and although we didn't get an ack from Andrew he told us to take the patch through the powerpc tree. There's one cxl patch. This is in drivers/misc, but Greg said he was happy for us to manage fixes for it. There is an infrastructure patch to support an IPMI driver for OPAL. There is also an RTC driver for OPAL. We weren't able to get any response from the RTC maintainer, Alessandro Zummo, so in the end we just merged the driver. The usual batch of Freescale updates from Scott" * tag 'powerpc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (101 commits) powerpc/powernv: Return to cpu offline loop when finished in KVM guest powerpc/book3s: Fix partial invalidation of TLBs in MCE code. powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault powerpc/xmon: Cleanup the breakpoint flags powerpc/xmon: Enable HW instruction breakpoint on POWER8 powerpc/mm/thp: Use tlbiel if possible powerpc/mm/thp: Remove code duplication powerpc/mm/hugetlb: Sanity check gigantic hugepage count powerpc/oprofile: Disable pagefaults during user stack read powerpc/mm: Check for matching hpte without taking hpte lock powerpc: Drop useless warning in eeh_init() powerpc/powernv: Cleanup unused MCE definitions/declarations. powerpc/eeh: Dump PHB diag-data early powerpc/eeh: Recover EEH error on ownership change for BCM5719 powerpc/eeh: Set EEH_PE_RESET on PE reset powerpc/eeh: Refactor eeh_reset_pe() powerpc: Remove more traces of bootmem powerpc/pseries: Initialise nvram_pstore_info's buf_lock cxl: Name interrupts in /proc/interrupt cxl: Return error to PSL if IRQ demultiplexing fails & print clearer warning ...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Martin Schwidefsky: "The most notable change for this pull request is the ftrace rework from Heiko. It brings a small performance improvement and the ground work to support a new gcc option to replace the mcount blocks with a single nop. Two new s390 specific system calls are added to emulate user space mmio for PCI, an artifact of the how PCI memory is accessed. Two patches for the memory management with changes to common code. For KVM mm_forbids_zeropage is added which disables the empty zero page for an mm that is used by a KVM process. And an optimization, pmdp_get_and_clear_full is added analog to ptep_get_and_clear_full. Some micro optimization for the cmpxchg and the spinlock code. And as usual bug fixes and cleanups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits) s390/cputime: fix 31-bit compile s390/scm_block: make the number of reqs per HW req configurable s390/scm_block: handle multiple requests in one HW request s390/scm_block: allocate aidaw pages only when necessary s390/scm_block: use mempool to manage aidaw requests s390/eadm: change timeout value s390/mm: fix memory leak of ptlock in pmd_free_tlb s390: use local symbol names in entry[64].S s390/ptrace: always include vector registers in core files s390/simd: clear vector register pointer on fork/clone s390: translate cputime magic constants to macros s390/idle: convert open coded idle time seqcount s390/idle: add missing irq off lockdep annotation s390/debug: avoid function call for debug_sprintf_* s390/kprobes: fix instruction copy for out of line execution s390: remove diag 44 calls from cpu_relax() s390/dasd: retry partition detection s390/dasd: fix list corruption for sleep_on requests s390/dasd: fix infinite term I/O loop s390/dasd: remove unused code ...
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- 11 Dec, 2014 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds authored
Pull networking updates from David Miller: 1) New offloading infrastructure and example 'rocker' driver for offloading of switching and routing to hardware. This work was done by a large group of dedicated individuals, not limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend, Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu 2) Start making the networking operate on IOV iterators instead of modifying iov objects in-situ during transfers. Thanks to Al Viro and Herbert Xu. 3) A set of new netlink interfaces for the TIPC stack, from Richard Alpe. 4) Remove unnecessary looping during ipv6 routing lookups, from Martin KaFai Lau. 5) Add PAUSE frame generation support to gianfar driver, from Matei Pavaluca. 6) Allow for larger reordering levels in TCP, which are easily achievable in the real world right now, from Eric Dumazet. 7) Add a variable of napi_schedule that doesn't need to disable cpu interrupts, from Eric Dumazet. 8) Use a doubly linked list to optimize neigh_parms_release(), from Nicolas Dichtel. 9) Various enhancements to the kernel BPF verifier, and allow eBPF programs to actually be attached to sockets. From Alexei Starovoitov. 10) Support TSO/LSO in sunvnet driver, from David L Stevens. 11) Allow controlling ECN usage via routing metrics, from Florian Westphal. 12) Remote checksum offload, from Tom Herbert. 13) Add split-header receive, BQL, and xmit_more support to amd-xgbe driver, from Thomas Lendacky. 14) Add MPLS support to openvswitch, from Simon Horman. 15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen Klassert. 16) Do gro flushes on a per-device basis using a timer, from Eric Dumazet. This tries to resolve the conflicting goals between the desired handling of bulk vs. RPC-like traffic. 17) Allow userspace to ask for the CPU upon what a packet was received/steered, via SO_INCOMING_CPU. From Eric Dumazet. 18) Limit GSO packets to half the current congestion window, from Eric Dumazet. 19) Add a generic helper so that all drivers set their RSS keys in a consistent way, from Eric Dumazet. 20) Add xmit_more support to enic driver, from Govindarajulu Varadarajan. 21) Add VLAN packet scheduler action, from Jiri Pirko. 22) Support configurable RSS hash functions via ethtool, from Eyal Perry. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits) Fix race condition between vxlan_sock_add and vxlan_sock_release net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header net/mlx4: Add support for A0 steering net/mlx4: Refactor QUERY_PORT net/mlx4_core: Add explicit error message when rule doesn't meet configuration net/mlx4: Add A0 hybrid steering net/mlx4: Add mlx4_bitmap zone allocator net/mlx4: Add a check if there are too many reserved QPs net/mlx4: Change QP allocation scheme net/mlx4_core: Use tasklet for user-space CQ completion events net/mlx4_core: Mask out host side virtualization features for guests net/mlx4_en: Set csum level for encapsulated packets be2net: Export tunnel offloads only when a VxLAN tunnel is created gianfar: Fix dma check map error when DMA_API_DEBUG is enabled cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call net: fec: only enable mdio interrupt before phy device link up net: fec: clear all interrupt events to support i.MX6SX net: fec: reset fep link status in suspend function net: sock: fix access via invalid file descriptor net: introduce helper macro for_each_cmsghdr ...
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Peter Wu authored
Balance a hid_device_io_start() call with hid_device_io_stop() in the error path. This avoids processing of HID reports when the probe fails which possibly leads to invalid memory access in hid_device_probe() as report_enum->report_id_hash might already be freed via hid_close_report(). hid_set_drvdata() is called before wtp_allocate, be consistent and clear drvdata too on the error path of wtp_allocate. Signed-off-by:
Peter Wu <peter@lekensteyn.nl> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Peter Wu authored
The HID response has a limited size. Do not trust the value returned by hardware, check that it really fits in the message. Signed-off-by:
Peter Wu <peter@lekensteyn.nl> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Peter Wu authored
hidpp_devicenametype_get_device_name() may return a negative value on protocol errors (for example, when the device is powered off). Explicitly check this condition to avoid a long-running loop. (0 cannot be returned as __name_length - index > 0, but check for it anyway as it would otherwise result in an infinite loop.) Signed-off-by:
Peter Wu <peter@lekensteyn.nl> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Peter Wu authored
We do not make any use of the actual name length get through hidpp_get_device_name(). Original patch by Benjamin Tissoires, this patch also replaces a (now) unnecessary goto by return NULL. Signed-off-by:
Peter Wu <peter@lekensteyn.nl> Signed-off-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Jason Gerecke authored
The existing generic touch code only reports events after reading an entire HID report, which practically means that only data about the last contact in a report will ever be provided to userspace. This patch uses a trick from hid-multitouch.c to discover what type of field is at the end of each contact; when such a field is encountered all the stored contact data will be reported. Signed-off-by:
Jason Gerecke <killertofu@gmail.com> Reviewed-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Tony Lindgren authored
On some ARMs the memory can be mapped pgprot_noncached() and still be working for atomic operations. As pointed out by Colin Cross <ccross@android.com>, in some cases you do want to use pgprot_noncached() if the SoC supports it to see a debug printk just before a write hanging the system. On ARMs, the atomic operations on strongly ordered memory are implementation defined. So let's provide an optional kernel parameter for configuring pgprot_noncached(), and use pgprot_writecombine() by default. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robherring2@gmail.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: stable@vger.kernel.org Acked-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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Rob Herring authored
Currently trying to use pstore on at least ARMs can hang as we're mapping the peristent RAM with pgprot_noncached(). On ARMs, pgprot_noncached() will actually make the memory strongly ordered, and as the atomic operations pstore uses are implementation defined for strongly ordered memory, they may not work. So basically atomic operations have undefined behavior on ARM for device or strongly ordered memory types. Let's fix the issue by using write-combine variants for mappings. This corresponds to normal, non-cacheable memory on ARM. For many other architectures, this change does not change the mapping type as by default we have: #define pgprot_writecombine pgprot_noncached The reason why pgprot_noncached() was originaly used for pstore is because Colin Cross <ccross@android.com> had observed lost debug prints right before a device hanging write operation on some systems. For the platforms supporting pgprot_noncached(), we can add a an optional configuration option to support that. But let's get pstore working first before adding new features. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Anton Vorontsov <cbouatmailru@gmail.com> Cc: Colin Cross <ccross@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Acked-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Rob Herring <rob.herring@calxeda.com> [tony@atomide.com: updated description] Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound updates from Takashi Iwai: "This became a fairly large pull request. In addition to the usual driver updates / fixes, there have been a high amount of cleanups in ASoC area, as well as control API helpers and kernel documentations fixes touching through the whole tree. In the driver side, the biggest changes are the support for new Intel SoC found on new x86 machines, and the updates of FireWire dice and oxfw drivers. Some remarkable items are below: ALSA core: - PCM mmap code cleanup, removal of arch-dependent codes - PCM xrun injection support - PCM hwptr tracepoint support - Refactoring of snd_pcm_action(), simplification of PCM locking - Robustified sequecner auto-load functionality - New control API helpers and lots of cleanups along with them - Lots of kerneldoc fixes and cleanups USB-audio: - The mixer resume code was largely rewritten, and the devices with quirks are resumed properly. - New hardware support: Focusrite Scarlett, Digidesign Mbox1, Denon/Marantz DACs, Zoom R16/24 FireWire: - DICE driver updates with better duplex and sync support, including MIDI support - New OXFW driver for Oxford Semiconductor FW970/971 chipset, including the previous LaCie Speakers device. Fullduplex and MIDI support included as well as DICE driver. HD-audio: - Refactoring the driver-caps quirk handling in snd-hda-intel - More consistent control names representing the topology better - Fixups: HP mute LED with ALC268 codec, Ideapad S210 built-in mic fix, ASUS Z99He laptop EAPD ASoC: - Conversion of AC'97 drivers to use regmap, bringing us closer to the removal of the ASoC level I/O code - Clean up a lot of old drivers that were open coding things that have subsequently been implemented in the core - Some DAPM performance improvements - Removal of the now seldom used CODEC mutex - Lots of updates for the newer Intel SoC support, including support for the DSP and some Cherrytrail and Braswell machine drivers - Support for Samsung boards using rt5631 as the CODEC - Removal of the obsolete AFEB9260 machine driver - Driver support for the TI TS3A227E headset driver used in some Chrombeooks Others: - ASIHPI driver update and cleanups - Lots of dev_*() printk conversions - Lots of trivial cleanups for the codes spotted by Coccinelle" * tag 'sound-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits) ALSA: pcxhr: NULL dereference on probe failure ALSA: lola: NULL dereference on probe failure ALSA: hda - Add "eapd" model string for AD1986A codec ALSA: hda - Add EAPD fixup for ASUS Z99He laptop ALSA: oxfw: Add hwdep interface ALSA: oxfw: Add support for capture/playback MIDI messages ALSA: oxfw: add support for capturing PCM samples ALSA: oxfw: Add support AMDTP in-stream ALSA: oxfw: Add support for Behringer/Mackie devices ALSA: oxfw: Change the way to start stream ALSA: oxfw: Add proc interface for debugging purpose ALSA: oxfw: Change the way to make PCM rules/constraints ALSA: oxfw: Add support for AV/C stream format command to get/set supported stream formation ALSA: oxfw: Change the way to name card ALSA: dice: Add support for MIDI capture/playback ALSA: dice: Add support for capturing PCM samples ALSA: dice: Support for non SYT-Match sampling clock source mode ALSA: dice: Add support for duplex streams with synchronization ALSA: dice: Change the way to start stream ALSA: jack: Add dummy snd_jack_set_key() definition ...
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git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linuxLinus Torvalds authored
Pull devicetree changes from Grant Likely: "Lots of activity in the devicetree code for v3.18. Most of it is related to getting all of the overlay support code in place, but there are other important things in there. Highlights: - OF_RECONFIG notifiers for SPI, I2C and Platform devices. Those subsystems can now respond to live changes to the device tree. - CONFIG_OF_OVERLAY method for applying live changes to the device tree - Removal of the of_allnodes list. This used to be used to iterate over all the nodes in the device tree, but it is unnecessary because the same thing can be done by iterating over the list of child pointers. Getting rid of of_allnodes saves some memory and avoids the possibility of of_allnodes being sorted differently from the child lists. - Support for retrieving original DTB blob via sysfs. Needed by kexec. - More unittests - Documentation and minor bug fixes" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (42 commits) of: Delete unnecessary check before calling "of_node_put()" of: Drop ->next pointer from struct device_node spi: Check for spi_of_notifier when CONFIG_OF_DYNAMIC=y of: support passing console options with stdout-path of: add optional options parameter to of_find_node_by_path() of: Add bindings for chosen node, stdout-path of: Remove unneeded and incorrect MODULE_DEVICE_TABLE ARM: dt: fix up PL011 device tree bindings of: base, fix of_property_read_string_helper kernel-doc of: remove select of non-existant OF_DEVICE config symbol spi/of: Add OF notifier handler spi/of: Create new device registration method and accessors i2c/of: Add OF_RECONFIG notifier handler i2c/of: Factor out Devicetree registration code of/overlay: Add overlay unittests of/overlay: Introduce DT overlay support of/reconfig: Add OF_DYNAMIC notifier for platform_bus_type of/reconfig: Always use the same structure for notifiers of/reconfig: Add debug output for OF_RECONFIG notifiers of/reconfig: Add empty stubs for the of_reconfig methods ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linuxLinus Torvalds authored
Pull fbdev updates from Tomi Valkeinen: - support for mx6sl and mx6sx - OMAP HDMI audio rewrite to make it finally work - OMAP video PLL work to prepare for new DRA7xx SoCs - simplefb DT related improvements * tag 'fbdev-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (81 commits) video: uvesafb: Deletion of an unnecessary check before the function call "platform_device_put" video: fbdev-VIA: Deletion of an unnecessary check before the function call "framebuffer_release" video: fbdev-MMP: Deletion of an unnecessary check before the function call "mmp_unregister_path" video: mx3fb: Deletion of an unnecessary check before the function call "backlight_device_unregister" video: fbdev-OMAP2: Deletion of unnecessary checks before the function call "i2c_put_adapter" video: fbdev-SIS: Deletion of unnecessary checks before the function call "pci_dev_put" video: smscufx: Deletion of unnecessary checks before the function call "vfree" video: udlfb: Deletion of unnecessary checks before the function call "vfree" video: uvesafb: Deletion of an unnecessary check before the function call "uvesafb_free" video: fbdev-LCDC: Deletion of an unnecessary check before the function call "vfree" video: fbdev: arkfb: suppress build warning video: fbdev: s3fb: suppress build warning video: fbdev: vt8623fb: suppress build warning OMAPDSS: hdmi5: Fix bit field for IEC958_AES2_CON_SOURCE OMAPDSS: hdmi: Remove __exit qualifier from hdmi_uninit_output() OMAPDSS: hdmi5: Change hdmi_wp idlemode to to no_idle for audio playback OMAPDSS: Remove all references to obsolete HDMI audio callbacks ASoC: omap: Remove obsolete HDMI audio code and Kconfig options OMAPDSS: hdmi5: Register ASoC platform device for omap hdmi audio OMAPDSS: hdmi5: Remove callbacks for the old ASoC DAI driver ...
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