- 24 Sep, 2019 28 commits
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Mark Rutland authored
In several places we need to be able to operate on pointers which have gone via a roundtrip: virt -> {phys,page} -> virt With KASAN_SW_TAGS, we can't preserve the tag for SLUB objects, and the {phys,page} -> virt conversion will use KASAN_TAG_KERNEL. This patch adds tests to ensure that this works as expected, without false positives which have recently been spotted [1,2] in testing. [1] https://lore.kernel.org/linux-arm-kernel/20190819114420.2535-1-walter-zh.wu@mediatek.com/ [2] https://lore.kernel.org/linux-arm-kernel/20190819132347.GB9927@lakrids.cambridge.arm.com/ [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/20190821153927.28630-1-mark.rutland@arm.comSigned-off-by:Mark Rutland <mark.rutland@arm.com> Reviewed-by:
Andrey Konovalov <andreyknvl@google.com> Tested-by:
Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Walter Wu authored
Add memory corruption identification at bug report for software tag-based mode. The report shows whether it is "use-after-free" or "out-of-bound" error instead of "invalid-access" error. This will make it easier for programmers to see the memory corruption problem. We extend the slab to store five old free pointer tag and free backtrace, we can check if the tagged address is in the slab record and make a good guess if the object is more like "use-after-free" or "out-of-bound". therefore every slab memory corruption can be identified whether it's "use-after-free" or "out-of-bound". [aryabinin@virtuozzo.com: simplify & clenup code] Link: https://lkml.kernel.org/r/3318f9d7-a760-3cc8-b700-f06108ae745f@virtuozzo.com] Link: http://lkml.kernel.org/r/20190821180332.11450-1-aryabinin@virtuozzo.comSigned-off-by:
Walter Wu <walter-zh.wu@mediatek.com> Signed-off-by:
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Qian Cai authored
There are some machines with slow disk and fast CPUs. When they are under memory pressure, it could take a long time to swap before the OOM kicks in to free up some memory. As the results, it needs a large mem pool for kmemleak or suffering from higher chance of a kmemleak metadata allocation failure. 524288 proves to be the good number for all architectures here. Increase the upper bound to 1M to leave some room for the future. Link: http://lkml.kernel.org/r/1565807572-26041-1-git-send-email-cai@lca.pwSigned-off-by:
Qian Cai <cai@lca.pw> Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
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Qian Cai authored
The only way to obtain the current memory pool size for a running kernel is to check the kernel config file which is inconvenient. Record it in the kernel messages. [akpm@linux-foundation.org: s/memory pool size/memory pool/available/, per Catalin] Link: http://lkml.kernel.org/r/1565809631-28933-1-git-send-email-cai@lca.pwSigned-off-by:
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Catalin Marinas authored
Currently kmemleak uses a static early_log buffer to trace all memory allocation/freeing before the slab allocator is initialised. Such early log is replayed during kmemleak_init() to properly initialise the kmemleak metadata for objects allocated up that point. With a memory pool that does not rely on the slab allocator, it is possible to skip this early log entirely. In order to remove the early logging, consider kmemleak_enabled == 1 by default while the kmem_cache availability is checked directly on the object_cache and scan_area_cache variables. The RCU callback is only invoked after object_cache has been initialised as we wouldn't have any concurrent list traversal before this. In order to reduce the number of callbacks before kmemleak is fully initialised, move the kmemleak_init() call to mm_init(). [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: remove WARN_ON(), per Catalin] Link: http://lkml.kernel.org/r/20190812160642.52134-4-catalin.marinas@arm.comSigned-off-by:
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Catalin Marinas authored
Add a memory pool for struct kmemleak_object in case the normal kmem_cache_alloc() fails under the gfp constraints passed by the caller. The mem_pool[] array size is currently fixed at 16000. We are not using the existing mempool kernel API since this requires the slab allocator to be available (for pool->elements allocation). A subsequent kmemleak patch will replace the static early log buffer with the pool allocation introduced here and this functionality is required to be available before the slab was initialised. Link: http://lkml.kernel.org/r/20190812160642.52134-3-catalin.marinas@arm.comSigned-off-by:
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Catalin Marinas authored
Patch series "mm: kmemleak: Use a memory pool for kmemleak object allocations", v3. Following the discussions on v2 of this patch(set) [1], this series takes slightly different approach: - it implements its own simple memory pool that does not rely on the slab allocator - drops the early log buffer logic entirely since it can now allocate metadata from the memory pool directly before kmemleak is fully initialised - CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE option is renamed to CONFIG_DEBUG_KMEMLEAK_MEM_POOL_SIZE - moves the kmemleak_init() call earlier (mm_init()) - to avoid a separate memory pool for struct scan_area, it makes the tool robust when such allocations fail as scan areas are rather an optimisation [1] http://lkml.kernel.org/r/20190727132334.9184-1-catalin.marinas@arm.com This patch (of 3): Object scan areas are an optimisation aimed to decrease the false positives and slightly improve the scanning time of large objects known to only have a few specific pointers. If a struct scan_area fails to allocate, kmemleak can still function normally by scanning the full object. Introduce an OBJECT_FULL_SCAN flag and mark objects as such when scan_area allocation fails. Link: http://lkml.kernel.org/r/20190812160642.52134-2-catalin.marinas@arm.comSigned-off-by:
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Nicolas Boichat authored
The current default value (400) is too low on many systems (e.g. some ARM64 platform takes up 1000+ entries). syzbot uses 16000 as default value, and has proved to be enough on beefy configurations, so let's pick that value. This consumes more RAM on boot (each entry is 160 bytes, so in total ~2.5MB of RAM), but the memory would later be freed (early_log is __initdata). Link: http://lkml.kernel.org/r/20190730154027.101525-1-drinkcat@chromium.orgSigned-off-by:
Nicolas Boichat <drinkcat@chromium.org> Suggested-by:
Dmitry Vyukov <dvyukov@google.com> Acked-by:
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Qian Cai authored
tid_to_cpu() and tid_to_event() are only used in note_cmpxchg_failure() when SLUB_DEBUG_CMPXCHG=y, so when SLUB_DEBUG_CMPXCHG=n by default, Clang will complain that those unused functions. Link: http://lkml.kernel.org/r/1568752232-5094-1-git-send-email-cai@lca.pwSigned-off-by:
David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by:
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Waiman Long authored
The memcg_cache_params structure is only embedded into the kmem_cache of slab and slub allocators as defined in slab_def.h and slub_def.h and used internally by mm code. There is no needed to expose it in a public header. So move it from include/linux/slab.h to mm/slab.h. It is just a refactoring patch with no code change. In fact both the slub_def.h and slab_def.h should be moved into the mm directory as well, but that will probably cause many merge conflicts. Link: http://lkml.kernel.org/r/20190718180827.18758-1-longman@redhat.comSigned-off-by:
Waiman Long <longman@redhat.com> Acked-by:
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Waiman Long authored
Currently, a value of '1" is written to /sys/kernel/slab/<slab>/shrink file to shrink the slab by flushing out all the per-cpu slabs and free slabs in partial lists. This can be useful to squeeze out a bit more memory under extreme condition as well as making the active object counts in /proc/slabinfo more accurate. This usually applies only to the root caches, as the SLUB_MEMCG_SYSFS_ON option is usually not enabled and "slub_memcg_sysfs=1" not set. Even if memcg sysfs is turned on, it is too cumbersome and impractical to manage all those per-memcg sysfs files in a real production system. So there is no practical way to shrink memcg caches. Fix this by enabling a proper write to the shrink sysfs file of the root cache to scan all the available memcg caches and shrink them as well. For a non-root memcg cache (when SLUB_MEMCG_SYSFS_ON or slub_memcg_sysfs is on), only that cache will be shrunk when written. On a 2-socket 64-core 256-thread arm64 system with 64k page after a parallel kernel build, the the amount of memory occupied by slabs before shrinking slabs were: # grep task_struct /proc/slabinfo task_struct 53137 53192 4288 61 4 : tunables 0 0 0 : slabdata 872 872 0 # grep "^S[lRU]" /proc/meminfo Slab: 3936832 kB SReclaimable: 399104 kB SUnreclaim: 3537728 kB After shrinking slabs (by echoing "1" to all shrink files): # grep "^S[lRU]" /proc/meminfo Slab: 1356288 kB SReclaimable: 263296 kB SUnreclaim: 1092992 kB # grep task_struct /proc/slabinfo task_struct 2764 6832 4288 61 4 : tunables 0 0 0 : slabdata 112 112 0 Link: http://lkml.kernel.org/r/20190723151445.7385-1-longman@redhat.comSigned-off-by:
Roman Gushchin <guro@fb.com> Acked-by:
Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Signed-off-by:
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Colin Ian King authored
There is a spelling mistake in a mlog_bug_on_msg message. Fix it. Link: http://lkml.kernel.org/r/831bdff4-064e-038b-f45d-c4d265cbff1e@linux.alibaba.comSigned-off-by:
Colin Ian King <colin.king@canonical.com> Acked-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Signed-off-by:
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Changwei Ge authored
Appending truncate log(TA) and and flushing truncate log(TF) are two separated transactions. They can be both committed but not checkpointed. If crash occurs then, both transaction will be replayed with several already released to global bitmap clusters. Then truncate log will be replayed resulting in cluster double free. To reproduce this issue, just crash the host while punching hole to files. Signed-off-by:
Changwei Ge <gechangwei@live.cn> Reviewed-by:
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Changwei Ge authored
There is a scenario causing ocfs2 umount hang when multiple hosts are rebooting at the same time. NODE1 NODE2 NODE3 send unlock requset to NODE2 dies become recovery master recover NODE2 find NODE2 dead mark resource RECOVERING directly remove lock from grant list calculate usage but RECOVERING marked **miss the window of purging clear RECOVERING To reproduce this issue, crash a host and then umount ocfs2 from another node. To solve this, just let unlock progress wait for recovery done. Link: http://lkml.kernel.org/r/1550124866-20367-1-git-send-email-gechangwei@live.cnSigned-off-by: -
Markus Elfring authored
brelse() tests whether its argument is NULL and then returns immediately. Thus the tests around the shown calls are not needed. This issue was detected by using the Coccinelle software. Link: http://lkml.kernel.org/r/55cde320-394b-f985-56ce-1a2abea782aa@web.deSigned-off-by:
Markus Elfring <elfring@users.sourceforge.net> Reviewed-by:
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zhengbin authored
Fixes gcc '-Wunused-but-set-variable' warning: fs/ocfs2/dir.c: In function ocfs2_dx_dir_transfer_leaf: fs/ocfs2/dir.c:3653:42: warning: variable new_list set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/1566522588-63786-4-git-send-email-joseph.qi@linux.alibaba.comSigned-off-by:
zhengbin <zhengbin13@huawei.com> Signed-off-by:
Hulk Robot <hulkci@huawei.com> Reviewed-by:
Changwei Ge <chge@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Signed-off-by:
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zhengbin authored
Fixes gcc '-Wunused-but-set-variable' warning: fs/ocfs2/file.c: In function ocfs2_prepare_inode_for_write: fs/ocfs2/file.c:2143:9: warning: variable end set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/1566522588-63786-3-git-send-email-joseph.qi@linux.alibaba.comSigned-off-by:
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zhengbin authored
Fixes gcc '-Wunused-but-set-variable' warning: fs/ocfs2/namei.c: In function ocfs2_create_inode_in_orphan: fs/ocfs2/namei.c:2503:23: warning: variable di set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/1566522588-63786-2-git-send-email-joseph.qi@linux.alibaba.comSigned-off-by:
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Guozhonghua authored
ocfs2_orphan_scan_exit() is declared but not implemented. Also perform a minor cleanup in ocfs2_link_credits() Link: http://lkml.kernel.org/r/71604351584F6A4EBAE558C676F37CA4014FC208AC@H3CMLB12-EX.srv.huawei-3com.comSigned-off-by:
guozhonghua <guozhonghua@h3c.com> Reviewed-by:
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Guozhonghua authored
ocfs2_calc_tree_trunc_credits() is not called anywhere. Link: http://lkml.kernel.org/r/71604351584F6A4EBAE558C676F37CA4014FC2050F@H3CMLB12-EX.srv.huawei-3com.comSigned-off-by:
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Greg Kroah-Hartman authored
There is no need to check return value of debugfs_create functions, but the last sweep through ocfs missed a number of places where this was happening. There is also no need to save the individual dentries for the debugfs files, as everything is can just be removed at once when the directory is removed. By getting rid of the file dentries for the debugfs entries, a bit of local memory can be saved as well. [colin.king@canonical.com: ensure ret is set to zero before returning] Link: http://lkml.kernel.org/r/20190807121929.28918-1-colin.king@canonical.com Link: http://lkml.kernel.org/r/20190731132119.GA12603@kroah.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Joseph Qi authored
Since ext4/ocfs2 are using jbd2_inode dirty range scoping APIs now, jbd2_journal_inode_add_[write|wait] are not used any more, remove them. Link: http://lkml.kernel.org/r/1562977611-8412-2-git-send-email-joseph.qi@linux.alibaba.comSigned-off-by:
Ross Zwisler <zwisler@google.com> Acked-by:
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Joseph Qi authored
6ba0e7dc ("jbd2: introduce jbd2_inode dirty range scoping") allow us scoping each of the inode dirty ranges associated with a given transaction, and ext4 already does this way. Now let's also use the newly introduced jbd2_inode dirty range scoping to prevent us from waiting forever when trying to complete a journal transaction in ocfs2. Link: http://lkml.kernel.org/r/1562977611-8412-1-git-send-email-joseph.qi@linux.alibaba.comSigned-off-by:
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Greg Thelen authored
Since 9e3596b0 ("kbuild: initramfs cleanup, set target from Kconfig") "make clean" leaves behind compressed initramfs images. Example: $ make defconfig $ sed -i 's|CONFIG_INITRAMFS_SOURCE=""|CONFIG_INITRAMFS_SOURCE="/tmp/ir.cpio"|' .config $ make olddefconfig $ make -s $ make -s clean $ git clean -ndxf | grep initramfs Would remove usr/initramfs_data.cpio.gz clean rules do not have CONFIG_* context so they do not know which compression format was used. Thus they don't know which files to delete. Tell clean to delete all possible compression formats. Once patched usr/initramfs_data.cpio.gz and friends are deleted by "make clean". Link: http://lkml.kernel.org/r/20190722063251.55541-1-gthelen@google.com Fixes: 9e3596b0 ("kbuild: initramfs cleanup, set target from Kconfig") Signed-off-by:
Greg Thelen <gthelen@google.com> Cc: Nicholas Piggin <npiggin@gmail.com> Signed-off-by:
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Vitaly Wool authored
z3fold_page_reclaim()'s retry mechanism is broken: on a second iteration it will have zhdr from the first one so that zhdr is no longer in line with struct page. That leads to crashes when the system is stressed. Fix that by moving zhdr assignment up. While at it, protect against using already freed handles by using own local slots structure in z3fold_page_reclaim(). Link: http://lkml.kernel.org/r/20190908162919.830388dc7404d1e2c80f4095@gmail.comSigned-off-by:
Vitaly Wool <vitalywool@gmail.com> Reported-by:
Markus Linnala <markus.linnala@gmail.com> Reported-by:
Chris Murphy <bugzilla@colorremedies.com> Reported-by:
Agustin Dall'Alba <agustin@dallalba.com.ar> Cc: "Maciej S. Szmigiero" <mail@maciej.szmigiero.name> Cc: Shakeel Butt <shakeelb@google.com> Cc: Henry Burns <henrywolfeburns@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Arnd Bergmann authored
On kernels without CONFIG_MMU, we get a link error for the siw driver: drivers/infiniband/sw/siw/siw_mem.o: In function `siw_umem_get': siw_mem.c:(.text+0x4c8): undefined reference to `can_do_mlock' This is probably not the only driver that needs the function and could otherwise build correctly without CONFIG_MMU, so add a dummy variant that always returns false. Link: http://lkml.kernel.org/r/20190909204201.931830-1-arnd@arndb.de Fixes: 2251334d ("rdma/siw: application buffer management") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Suggested-by:
Jason Gunthorpe <jgg@mellanox.com> Acked-by:
Michal Hocko <mhocko@suse.com> Cc: Bernard Metzler <bmt@zurich.ibm.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by:
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Vitaly Wool authored
With the original commit applied, z3fold_zpool_destroy() may get blocked on wait_event() for indefinite time. Revert this commit for the time being to get rid of this problem since the issue the original commit addresses is less severe. Link: http://lkml.kernel.org/r/20190910123142.7a9c8d2de4d0acbc0977c602@gmail.com Fixes: d776aaa9 ("mm/z3fold.c: fix race between migration and destruction") Reported-by:
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OGAWA Hirofumi authored
If userspace reads the buffer via blockdev while mounting, sb_getblk()+modify can race with buffer read via blockdev. For example, FS userspace bh = sb_getblk() modify bh->b_data read ll_rw_block(bh) fill bh->b_data by on-disk data /* lost modified data by FS */ set_buffer_uptodate(bh) set_buffer_uptodate(bh) Userspace should not use the blockdev while mounting though, the udev seems to be already doing this. Although I think the udev should try to avoid this, workaround the race by small overhead. Link: http://lkml.kernel.org/r/87pnk7l3sw.fsf_-_@mail.parknet.co.jpSigned-off-by:OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Reported-by:
Jan Stancek <jstancek@redhat.com> Tested-by:
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- 22 Sep, 2019 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull power supply and reset updates from Sebastian Reichel: "Core: - Ensure HWMON devices are registered with valid names - Fix device wakeup code Drivers: - bq25890_charger: Add BQ25895 support - axp288_fuel_gauge: Add Minix Neo Z83-4 to blacklist - sc27xx: improve battery calibration - misc small fixes all over drivers" * tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (24 commits) power: supply: cpcap-charger: Enable vbus boost voltage power: supply: sc27xx: Add POWER_SUPPLY_PROP_CALIBRATE attribute power: supply: sc27xx: Optimize the battery capacity calibration power: supply: sc27xx: Make sure the alarm capacity is larger than 0 power: supply: sc27xx: Fix the the accuracy issue of coulomb calculation power: supply: sc27xx: Fix conditon to enable the FGU interrupt power: supply: sc27xx: Add POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN attribute power: supply: max77650: add MODULE_ALIAS() power: supply: isp1704: remove redundant assignment to variable ret power: supply: bq25890_charger: Add the BQ25895 part power: supply: sc27xx: Replace devm_add_action() followed by failure action with devm_add_action_or_reset() power: supply: sc27xx: Introduce local variable 'struct device *dev' power: reset: reboot-mode: Fix author email format power: supply: ab8500: remove set but not used variables 'vbup33_vrtcn' and 'bup_vch_range' power: supply: max17042_battery: Fix a typo in function names power: reset: gpio-restart: Fix typo when gpio reset is not found power: supply: Init device wakeup after device_add() power: supply: ab8500_charger: Mark expected switch fall-through power: supply: sbs-battery: only return health when battery present MAINTAINERS: N900: Remove isp1704_charger.h record ...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsiLinus Torvalds authored
Pull HSI updates from Sebastian Reichel: "Misc cleanups" * tag 'hsi-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: Remove dev_err() usage after platform_get_irq() HSI: ssi_protocol: Mark expected switch fall-throughs
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Linus Torvalds authored
Commit feb4eb06 ("firmware: bcm47xx_nvram: Correct size_t printf format") was wrong, and changed a printout of 'header.len' - which is an u32 type - to use '%zu'. It apparently did pattern matching on the other case, where it printed out 'nvram_len', which is indeed of type 'size_t'. Rather than undoing the change, this just makes it use the variable that the change seemed to expect to be used. Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Philippe Mathieu-Daudé <f4bug@amsat.org> Cc: Paul Burton <paul.burton@mips.com> Signed-off-by:
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Linus Torvalds authored
It's an unusual configuration, and was apparently never tested, and not caught in linux-next because of a combination of travels and it making it into the tree too late. The fix is to simply move the #define to outside the CONFIG_MODULE section, since MODULE_INFO() will do the right thing. Cc: Martijn Coenen <maco@android.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Matthias Maennich <maennich@google.com> Cc: Jessica Yu <jeyu@kernel.org> Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linuxLinus Torvalds authored
Pull RTC updates from Alexandre Belloni: "Two new drivers and the new pcf2127 feature make the bulk of the additions. The rest are the usual fixes and new features. Subsystem: - add debug message when registration fails New drivers: - Amlogic Virtual Wake - Freescale FlexTimer Module alarm Drivers: - remove superfluous error messages - convert to i2c_new_dummy_device and devm_i2c_new_dummy_device - Remove dev_err() usage after platform_get_irq() - Set RTC range for: pcf2123, pcf8563, snvs. - pcf2127: tamper detection and watchdog support - pcf85363: fix regmap issue - sun6i: H6 support - remove w90x900/nuc900 driver" * tag 'rtc-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (51 commits) rtc: meson: mark PM functions as __maybe_unused rtc: sc27xx: Remove clearing SPRD_RTC_POWEROFF_ALM_FLAG flag dt-bindings: rtc: ds1307: add rx8130 compatible rtc: sun6i: Allow using as wakeup source from suspend rtc: pcf8563: let the core handle range offsetting rtc: pcf8563: remove useless indirection rtc: pcf8563: convert to devm_rtc_allocate_device rtc: pcf8563: add Microcrystal RV8564 compatible rtc: pcf8563: add Epson RTC8564 compatible rtc: s35390a: convert to devm_i2c_new_dummy_device() rtc: max77686: convert to devm_i2c_new_dummy_device() rtc: pcf85363/pcf85263: fix regmap error in set_time rtc: snvs: switch to rtc_time64_to_tm/rtc_tm_to_time64 rtc: snvs: set range rtc: snvs: fix possible race condition rtc: pcf2127: bugfix: watchdog build dependency rtc: pcf2127: add tamper detection support rtc: pcf2127: add watchdog feature support rtc: pcf2127: bugfix: read rtc disables watchdog rtc: pcf2127: cleanup register and bit defines ...
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git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteprocLinus Torvalds authored
Pull rpmsg updates from Bjorn Andersson: "This contains updates to make the rpmsg sample driver more useful, fixes the naming of GLINK devices to avoid naming collisions and a few minor bug fixes. It also updates MAINTAINERS to reflect the move to kernel.org" * tag 'rpmsg-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: rpmsg: glink-smem: Name the edge based on parent remoteproc rpmsg: glink: Use struct_size() helper rpmsg: virtio_rpmsg_bus: replace "%p" with "%pK" MAINTAINERS: rpmsg: fix git tree location rpmsg: core: fix comments samples/rpmsg: Introduce a module parameter for message count samples/rpmsg: Replace print_hex_dump() with print_hex_dump_debug()
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git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteprocLinus Torvalds authored
Pull remoteproc updates from Bjorn Andersson: "This exposes the remoteproc's name in sysfs, allows stm32 to enter platform standby and provides bug fixes for stm32 and Qualcomm's modem remoteproc drivers. Finally it updates MAINTAINERS to reflect the move to kernel.org" * tag 'rproc-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: MAINTAINERS: remoteproc: update git tree location remoteproc: Remove dev_err() usage after platform_get_irq() remoteproc: stm32: manage the get_irq probe defer case remoteproc: stm32: clear MCU PDDS at firmware start remoteproc: qcom: q6v5-mss: fixup q6v5_pds_enable error handling remoteproc: Add a sysfs interface for name remoteproc: qcom: Move glink_ssr notification after stop
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwireLinus Torvalds authored
Pull soundwire updates from Vinod Koul: "This includes DT support thanks to Srini and more work done by Intel (Pierre) on improving cadence and intel support. Summary: - Add DT bindings and DT support in core - Add debugfs support for soundwire properties - Improvements on streaming handling to core - Improved handling of Cadence module - More updates and improvements to Intel driver" * tag 'soundwire-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (30 commits) soundwire: stream: make stream name a const pointer soundwire: Add compute_params callback soundwire: core: add device tree support for slave devices dt-bindings: soundwire: add slave bindings soundwire: bus: set initial value to port_status soundwire: intel: handle disabled links soundwire: intel: add debugfs register dump soundwire: cadence_master: add debugfs register dump soundwire: add debugfs support soundwire: intel: remove unused variables soundwire: intel: move shutdown() callback and don't export symbol soundwire: cadence_master: add kernel parameter to override interrupt mask soundwire: intel_init: add kernel module parameter to filter out links soundwire: cadence_master: fix divider setting in clock register soundwire: cadence_master: make use of mclk_freq property soundwire: intel: read mclk_freq property from firmware soundwire: add new mclk_freq field for properties soundwire: stream: remove unnecessary variable initializations soundwire: stream: fix disable sequence soundwire: include mod_devicetable.h to avoid compiling warnings ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linuxLinus Torvalds authored
Pull modules updates from Jessica Yu: "The main bulk of this pull request introduces a new exported symbol namespaces feature. The number of exported symbols is increasingly growing with each release (we're at about 31k exports as of 5.3-rc7) and we currently have no way of visualizing how these symbols are "clustered" or making sense of this huge export surface. Namespacing exported symbols allows kernel developers to more explicitly partition and categorize exported symbols, as well as more easily limiting the availability of namespaced symbols to other parts of the kernel. For starters, we have introduced the USB_STORAGE namespace to demonstrate the API's usage. I have briefly summarized the feature and its main motivations in the tag below. Summary: - Introduce exported symbol namespaces. This new feature allows subsystem maintainers to partition and categorize their exported symbols into explicit namespaces. Module authors are now required to import the namespaces they need. Some of the main motivations of this feature include: allowing kernel developers to better manage the export surface, allow subsystem maintainers to explicitly state that usage of some exported symbols should only be limited to certain users (think: inter-module or inter-driver symbols, debugging symbols, etc), as well as more easily limiting the availability of namespaced symbols to other parts of the kernel. With the module import requirement, it is also easier to spot the misuse of exported symbols during patch review. Two new macros are introduced: EXPORT_SYMBOL_NS() and EXPORT_SYMBOL_NS_GPL(). The API is thoroughly documented in Documentation/kbuild/namespaces.rst. - Some small code and kbuild cleanups here and there" * tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: Remove leftover '#undef' from export header module: remove unneeded casts in cmp_name() module: move CONFIG_UNUSED_SYMBOLS to the sub-menu of MODULES module: remove redundant 'depends on MODULES' module: Fix link failure due to invalid relocation on namespace offset usb-storage: export symbols in USB_STORAGE namespace usb-storage: remove single-use define for debugging docs: Add documentation for Symbol Namespaces scripts: Coccinelle script for namespace dependencies. modpost: add support for generating namespace dependencies export: allow definition default namespaces in Makefiles or sources module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS modpost: add support for symbol namespaces module: add support for symbol namespaces. export: explicitly align struct kernel_symbol module: support reading multiple values per modinfo tag -
git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM updates from Russell King: - fix various clang build and cppcheck issues - switch ARM to use new common outgoing-CPU-notification code - add some additional explanation about the boot code - kbuild "make clean" fixes - get rid of another "(____ptrval____)", this time for the VDSO code - avoid treating cache maintenance faults as a write - add a frame pointer unwinder implementation for clang - add EDAC support for Aurora L2 cache - improve robustness of adjust_lowmem_bounds() finding the bounds of lowmem. - add reset control for AMBA primecell devices * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (24 commits) ARM: 8906/1: drivers/amba: add reset control to amba bus probe ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address ARM: 8891/1: EDAC: armada_xp: Add support for more SoCs ARM: 8888/1: EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC ARM: 8892/1: EDAC: Add missing debugfs_create_x32 wrapper ARM: 8890/1: l2x0: add marvell,ecc-enable property for aurora ARM: 8889/1: dt-bindings: document marvell,ecc-enable binding ARM: 8886/1: l2x0: support parity-enable/disable on aurora ARM: 8885/1: aurora-l2: add defines for parity and ECC registers ARM: 8887/1: aurora-l2: add prefix to MAX_RANGE_SIZE ARM: 8902/1: l2c: move cache-aurora-l2.h to asm/hardware ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes ARM: 8896/1: VDSO: Don't leak kernel addresses ARM: 8895/1: visit mach-* and plat-* directories when cleaning ARM: 8894/1: boot: Replace open-coded nop with macro ARM: 8893/1: boot: Explain the 8 nops ARM: 8876/1: fix O= building with CONFIG_FPE_FASTFPE ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds authored
Pull MIPS updates from Paul Burton: "Main MIPS changes: - boot_mem_map is removed, providing a nice cleanup made possible by the recent removal of bootmem. - Some fixes to atomics, in general providing compiler barriers for smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs or MIPS32 systems using cmpxchg64(). - Conversion to the new generic VDSO infrastructure courtesy of Vincenzo Frascino. - Removal of undefined behavior in set_io_port_base(), fixing the behavior of some MIPS kernel configurations when built with recent clang versions. - Initial MIPS32 huge page support, functional on at least Ingenic SoCs. - pte_special() is now supported for some configurations, allowing among other things generic fast GUP to be used. - Miscellaneous fixes & cleanups. And platform specific changes: - Major improvements to Ingenic SoC support from Paul Cercueil, mostly enabled by the inclusion of the new TCU (timer-counter unit) drivers he's spent a very patient year or so working on. Plus some fixes for X1000 SoCs from Zhou Yanjie. - Netgear R6200 v1 systems are now supported by the bcm47xx platform. - DT updates for BMIPS, Lantiq & Microsemi Ocelot systems" * tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits) MIPS: Detect bad _PFN_SHIFT values MIPS: Disable pte_special() for MIPS32 with RiXi MIPS: ralink: deactivate PCI support for SOC_MT7621 mips: compat: vdso: Use legacy syscalls as fallback MIPS: Drop Loongson _CACHE_* definitions MIPS: tlbex: Remove cpu_has_local_ebase MIPS: tlbex: Simplify r3k check MIPS: Select R3k-style TLB in Kconfig MIPS: PCI: refactor ioc3 special handling mips: remove ioremap_cachable mips/atomic: Fix smp_mb__{before,after}_atomic() mips/atomic: Fix loongson_llsc_mb() wreckage mips/atomic: Fix cmpxchg64 barriers MIPS: Octeon: remove duplicated include from dma-octeon.c firmware: bcm47xx_nvram: Allow COMPILE_TEST firmware: bcm47xx_nvram: Correct size_t printf format MIPS: Treat Loongson Extensions as ASEs MIPS: Remove dev_err() usage after platform_get_irq() MIPS: dts: mscc: describe the PTP ready interrupt MIPS: dts: mscc: describe the PTP register range ...
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- 21 Sep, 2019 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2Linus Torvalds authored
Pull gfs2 updates from Andreas Gruenbacher: - Use asynchronous glocks and timeouts to recover from deadlocks during rename and exchange: the lock ordering constraints the vfs uses are not sufficient to prevent deadlocks across multiple nodes. - Add support for IOMAP_ZERO and use iomap_zero_range to replace gfs2 specific code. - Various other minor fixes and cleanups. * tag 'gfs2-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: clear buf_in_tr when ending a transaction in sweep_bh_for_rgrps gfs2: Improve mmap write vs. truncate consistency gfs2: Use async glocks for rename gfs2: create function gfs2_glock_update_hold_time gfs2: separate holder for rgrps in gfs2_rename gfs2: Delete an unnecessary check before brelse() gfs2: Minor PAGE_SIZE arithmetic cleanups gfs2: Fix recovery slot bumping gfs2: Fix possible fs name overflows gfs2: untangle the logic in gfs2_drevalidate gfs2: Always mark inode dirty in fallocate gfs2: Minor gfs2_alloc_inode cleanup gfs2: implement gfs2_block_zero_range using iomap_zero_range gfs2: Add support for IOMAP_ZERO gfs2: gfs2_iomap_begin cleanup
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