- 16 Jun, 2017 1 commit
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Jerome Brunet authored
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- 12 Jun, 2017 6 commits
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Martin Blumenstingl authored
The clock controller on Meson8, Meson8b and Meson8m2 is very similar based on the code from the Amlogic GPL kernel sources. Add separate compatibles for each SoC to make sure that we can easily implement all the small differences for each SoC later on. In general the Meson8 and Meson8m2 seem to be almost identical as they even share the same mach-meson8 directory in Amlogic's GPL kernel sources. The main clocks on Meson8, Meson8b and Meson8m2 are very similar, because they are all using the same PLL values, 90% of the clock gates are the same (the actual diffstat of the mach-meson8/clock.c and mach-meson8b/clock.c files is around 30 to 40 lines, when excluding all commented out code). The difference between the Meson8 and Meson8b clock gates seem to be: - Meson8 has AIU_PCLK, HDMI_RX, VCLK2_ENCT, VCLK2_ENCL, UART3, CSI_DIG_CLKIN gates which don't seem to be available on Meson8b - the gate on Meson8 for bit 7 seems to be named "_1200XXX" instead of "PERIPHS_TOP" (on Meson8b) - Meson8b has a SANA gate which doesn't seem to exist on Meson8 (or on Meson8 the same bit is used by the UART3 gate in Amlogic's GPL kernel sources) None of these gates is added for now, since it's unclear whether these definitions are actually correct (the VCLK2_ENCT gate for example is defined, but only used in some commented block). The main difference between all three SoCs seem to be the video (VPU) clocks. Apart from different supported clock rates (according to vpu.c in mach-meson8 and mach-meson8b from Amlogic's GPL kernel sources) the most notable difference is that Meson8m2 has a GP_PLL clock and a mux (probably the same as on the Meson GX SoCs) to support glitch-free (clock rate) switching. None of these VPU clocks are not supported by our mainline meson8b clock driver yet though. Signed-off-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by:
Rob Herring <robh@kernel.org> Acked-by:
Kevin Hilman <khilman@baylibre.com> Signed-off-by:
Jerome Brunet <jbrunet@baylibre.com>
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Martin Blumenstingl authored
Export the ethernet gate clock to the dt-bindings. Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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Martin Blumenstingl authored
Export the USB related clocks (for the USB controller and the USB2 PHYs) so they can be used in the dt-bindings. Signed-off-by:
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Martin Blumenstingl authored
This exports the clock so it can be used in the dt-bindings. Signed-off-by:
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Martin Blumenstingl authored
Export the SDIO clock so it can be used in the dt-bindings. Signed-off-by:
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Martin Blumenstingl authored
Export the clocks for the SAR ADC so they can be used in the dt-bindings. Signed-off-by:
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- 29 May, 2017 10 commits
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Neil Armstrong authored
On Amlogic GX SoCs, there is two CEC controllers : - An Amlogic CEC custom in the AO domain - The Synopsys HDMI-TX Controller in the EE domain Each of these controllers needs a 32.768KHz clock, but there is two paths : - In the EE domain, the "32k_clk" this patchs is adding - In the AO domain, with a more complex dual divider more precise setup The AO 32K clock support will be pushed later in the corresponding gxbb-aoclk driver when the AE CEC driver is ready. The EE 32k_clk must be pushed earlier since mainline support for CEC in the Synopsys HDMI-TX controller is nearby. Signed-off-by:
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Jerome Brunet authored
clk81 already has CLK_IS_CRITICAL so CLK_IGNORE_UNUSED is not necessary Signed-off-by:
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Martin Blumenstingl authored
Disabling clk81 results in an immediate freeze of the whole system. This can happen "accidentally" when the last child-clock of clk81 is disabled (in this case the common clock framework also disables clk81, even if it was only enabled indirectly before). Signed-off-by:
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Martin Blumenstingl authored
It seems that the "cpu_clk" was carried over from the meson8b clock controller driver. On Meson GX (GXBB/GXL/GXM) the registers which are used by the cpu_clk have a different purpose (in other words: they don't control the CPU clock anymore). HHI_SYS_CPU_CLK_CNTL1 bits 31:24 are reserved according to the public S905 datasheet, while bit 23 is the "A53_trace_clk_DIS" gate (which according to the datasheet should only be used in case a silicon bug is discovered) and bits 22:20 are a divider (A53_trace_clk). The meson clk-cpu code however expects that bits 28:20 are reserved for a divider (according to the public S805 datasheet this "SCALE_DIV: This value represents an N+1 divider of the input clock."). The CPU clock on Meson GX SoCs is provided by the SCPI DVFS clock driver instead. Two examples from a Meson GXL S905X SoC: - vcpu (SCPI DVFS clock 0) rate: 1000000000 / cpu_clk rate: 708000000 - vcpu (SCPI DVFS clock 0) rate: 1512000000 / cpu_clk rate: 708000000 Unfortunately the CLKID_CPUCLK was already exported (but is currently not used) to DT. Due to the removal of this clock definition there is now a hole in the clk_hw_onecell_data (which is not a problem because this case is already handled in gxbb_clkc_probe). Signed-off-by:
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Martin Blumenstingl authored
The CPU clock defined in the Meson GX clock driver is actually a left-over from the Meson8b clock controller. Un-export the clock so we can remove it from the driver. Signed-off-by:
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Helmut Klein authored
Expose the clock ids of the three none AO uarts to the dt-bindings Acked-by:
Helmut Klein <hgkr.klein@gmail.com> Signed-off-by:
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Neil Armstrong authored
Expose the SPICC gate clock to enable the SPICC controller. Acked-by:
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Jerome Brunet authored
Expose the spdif master clock and the mux to select the appropriate spdif clock parent depending on the data source. Acked-by:
Michael Turquette <mturquette@baylibre.com> Signed-off-by:
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Jerome Brunet authored
Expose cts_amclk in the device tree bindings Acked-by:
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Jerome Brunet authored
Expose the clock gates required for the spdif output Acked-by:
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- 13 May, 2017 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull some more input subsystem updates from Dmitry Torokhov: "An updated xpad driver with a few more recognized device IDs, and a new psxpad-spi driver, allowing connecting Playstation 1 and 2 joypads via SPI bus" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: cros_ec_keyb - remove extraneous 'const' Input: add support for PlayStation 1/2 joypads connected via SPI Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth Input: xpad - sync supported devices with xboxdrv Input: xpad - sort supported devices by USB ID
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git://git.infradead.org/linux-ubifsLinus Torvalds authored
Pull UBI/UBIFS updates from Richard Weinberger: - new config option CONFIG_UBIFS_FS_SECURITY - minor improvements - random fixes * tag 'upstream-4.12-rc1' of git://git.infradead.org/linux-ubifs: ubi: Add debugfs file for tracking PEB state ubifs: Fix a typo in comment of ioctl2ubifs & ubifs2ioctl ubifs: Remove unnecessary assignment ubifs: Fix cut and paste error on sb type comparisons ubi: fastmap: Fix slab corruption ubifs: Add CONFIG_UBIFS_FS_SECURITY to disable/enable security labels ubi: Make mtd parameter readable ubi: Fix section mismatch
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML fixes from Richard Weinberger: "No new stuff, just fixes" * 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Add missing NR_CPUS include um: Fix to call read_initrd after init_bootmem um: Include kbuild.h instead of duplicating its macros um: Fix PTRACE_POKEUSER on x86_64 um: Set number of CPUs um: Fix _print_addr()
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm, docs: update memory.stat description with workingset* entries mm: vmscan: scan until it finds eligible pages mm, thp: copying user pages must schedule on collapse dax: fix PMD data corruption when fault races with write dax: fix data corruption when fault races with write ext4: return to starting transaction in ext4_dax_huge_fault() mm: fix data corruption due to stale mmap reads dax: prevent invalidation of mapped DAX entries Tigran has moved mm, vmalloc: fix vmalloc users tracking properly mm/khugepaged: add missed tracepoint for collapse_huge_page_swapin gcov: support GCC 7.1 mm, vmstat: Remove spurious WARN() during zoneinfo print time: delete current_fs_time() hwpoison, memcg: forcibly uncharge LRU pages
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- 12 May, 2017 18 commits
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Roman Gushchin authored
Commit 4b4cea91691d ("mm: vmscan: fix IO/refault regression in cache workingset transition") introduced three new entries in memory stat file: - workingset_refault - workingset_activate - workingset_nodereclaim This commit adds a corresponding description to the cgroup v2 docs. Link: http://lkml.kernel.org/r/1494530293-31236-1-git-send-email-guro@fb.comSigned-off-by:Roman Gushchin <guro@fb.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Minchan Kim authored
Although there are a ton of free swap and anonymous LRU page in elgible zones, OOM happened. balloon invoked oom-killer: gfp_mask=0x17080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOTRACK), nodemask=(null), order=0, oom_score_adj=0 CPU: 7 PID: 1138 Comm: balloon Not tainted 4.11.0-rc6-mm1-zram-00289-ge228d67e9677-dirty #17 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 Call Trace: oom_kill_process+0x21d/0x3f0 out_of_memory+0xd8/0x390 __alloc_pages_slowpath+0xbc1/0xc50 __alloc_pages_nodemask+0x1a5/0x1c0 pte_alloc_one+0x20/0x50 __pte_alloc+0x1e/0x110 __handle_mm_fault+0x919/0x960 handle_mm_fault+0x77/0x120 __do_page_fault+0x27a/0x550 trace_do_page_fault+0x43/0x150 do_async_page_fault+0x2c/0x90 async_page_fault+0x28/0x30 Mem-Info: active_anon:424716 inactive_anon:65314 isolated_anon:0 active_file:52 inactive_file:46 isolated_file:0 unevictable:0 dirty:27 writeback:0 unstable:0 slab_reclaimable:3967 slab_unreclaimable:4125 mapped:133 shmem:43 pagetables:1674 bounce:0 free:4637 free_pcp:225 free_cma:0 Node 0 active_anon:1698864kB inactive_anon:261256kB active_file:208kB inactive_file:184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:532kB dirty:108kB writeback:0kB shmem:172kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no DMA free:7316kB min:32kB low:44kB high:56kB active_anon:8064kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:464kB slab_unreclaimable:40kB kernel_stack:0kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 992 992 1952 DMA32 free:9088kB min:2048kB low:3064kB high:4080kB active_anon:952176kB inactive_anon:0kB active_file:36kB inactive_file:0kB unevictable:0kB writepending:88kB present:1032192kB managed:1019388kB mlocked:0kB slab_reclaimable:13532kB slab_unreclaimable:16460kB kernel_stack:3552kB pagetables:6672kB bounce:0kB free_pcp:56kB local_pcp:24kB free_cma:0kB lowmem_reserve[]: 0 0 0 959 Movable free:3644kB min:1980kB low:2960kB high:3940kB active_anon:738560kB inactive_anon:261340kB active_file:188kB inactive_file:640kB unevictable:0kB writepending:20kB present:1048444kB managed:1010816kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:832kB local_pcp:60kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 DMA: 1*4kB (E) 0*8kB 18*16kB (E) 10*32kB (E) 10*64kB (E) 9*128kB (ME) 8*256kB (E) 2*512kB (E) 2*1024kB (E) 0*2048kB 0*4096kB = 7524kB DMA32: 417*4kB (UMEH) 181*8kB (UMEH) 68*16kB (UMEH) 48*32kB (UMEH) 14*64kB (MH) 3*128kB (M) 1*256kB (H) 1*512kB (M) 2*1024kB (M) 0*2048kB 0*4096kB = 9836kB Movable: 1*4kB (M) 1*8kB (M) 1*16kB (M) 1*32kB (M) 0*64kB 1*128kB (M) 2*256kB (M) 4*512kB (M) 1*1024kB (M) 0*2048kB 0*4096kB = 3772kB 378 total pagecache pages 17 pages in swap cache Swap cache stats: add 17325, delete 17302, find 0/27 Free swap = 978940kB Total swap = 1048572kB 524157 pages RAM 0 pages HighMem/MovableOnly 12629 pages reserved 0 pages cma reserved 0 pages hwpoisoned [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 433] 0 433 4904 5 14 3 82 0 upstart-udev-br [ 438] 0 438 12371 5 27 3 191 -1000 systemd-udevd With investigation, skipping page of isolate_lru_pages makes reclaim void because it returns zero nr_taken easily so LRU shrinking is effectively nothing and just increases priority aggressively. Finally, OOM happens. The problem is that get_scan_count determines nr_to_scan with eligible zones so although priority drops to zero, it couldn't reclaim any pages if the LRU contains mostly ineligible pages. get_scan_count: size = lruvec_lru_size(lruvec, lru, sc->reclaim_idx); size = size >> sc->priority; Assumes sc->priority is 0 and LRU list is as follows. N-N-N-N-H-H-H-H-H-H-H-H-H-H-H-H-H-H-H-H (Ie, small eligible pages are in the head of LRU but others are almost ineligible pages) In that case, size becomes 4 so VM want to scan 4 pages but 4 pages from tail of the LRU are not eligible pages. If get_scan_count counts skipped pages, it doesn't reclaim any pages remained after scanning 4 pages so it ends up OOM happening. This patch makes isolate_lru_pages try to scan pages until it encounters eligible zones's pages. [akpm@linux-foundation.org: clean up mind-bending `for' statement. Tweak comment text] Fixes: 3db65812 ("Revert "mm, vmscan: account for skipped pages as a partial scan"") Link: http://lkml.kernel.org/r/1494457232-27401-1-git-send-email-minchan@kernel.orgSigned-off-by:Minchan Kim <minchan@kernel.org> Acked-by:
Michal Hocko <mhocko@suse.com> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by:
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David Rientjes authored
We have encountered need_resched warnings in __collapse_huge_page_copy() while doing {clear,copy}_user_highpage() over HPAGE_PMD_NR source pages. mm->mmap_sem is held for write, but the iteration is well bounded. Reschedule as needed. Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1705101426380.109808@chino.kir.corp.google.comSigned-off-by:David Rientjes <rientjes@google.com> Acked-by:
Vlastimil Babka <vbabka@suse.cz> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by:
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Ross Zwisler authored
This is based on a patch from Jan Kara that fixed the equivalent race in the DAX PTE fault path. Currently DAX PMD read fault can race with write(2) in the following way: CPU1 - write(2) CPU2 - read fault dax_iomap_pmd_fault() ->iomap_begin() - sees hole dax_iomap_rw() iomap_apply() ->iomap_begin - allocates blocks dax_iomap_actor() invalidate_inode_pages2_range() - there's nothing to invalidate grab_mapping_entry() - we add huge zero page to the radix tree and map it to page tables The result is that hole page is mapped into page tables (and thus zeros are seen in mmap) while file has data written in that place. Fix the problem by locking exception entry before mapping blocks for the fault. That way we are sure invalidate_inode_pages2_range() call for racing write will either block on entry lock waiting for the fault to finish (and unmap stale page tables after that) or read fault will see already allocated blocks by write(2). Fixes: 9f141d6e ("dax: Call ->iomap_begin without entry lock during dax fault") Link: http://lkml.kernel.org/r/20170510172700.18991-1-ross.zwisler@linux.intel.comSigned-off-by:Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by:
Jan Kara <jack@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Jan Kara authored
Currently DAX read fault can race with write(2) in the following way: CPU1 - write(2) CPU2 - read fault dax_iomap_pte_fault() ->iomap_begin() - sees hole dax_iomap_rw() iomap_apply() ->iomap_begin - allocates blocks dax_iomap_actor() invalidate_inode_pages2_range() - there's nothing to invalidate grab_mapping_entry() - we add zero page in the radix tree and map it to page tables The result is that hole page is mapped into page tables (and thus zeros are seen in mmap) while file has data written in that place. Fix the problem by locking exception entry before mapping blocks for the fault. That way we are sure invalidate_inode_pages2_range() call for racing write will either block on entry lock waiting for the fault to finish (and unmap stale page tables after that) or read fault will see already allocated blocks by write(2). Fixes: 9f141d6e Link: http://lkml.kernel.org/r/20170510085419.27601-5-jack@suse.czSigned-off-by: -
Jan Kara authored
DAX will return to locking exceptional entry before mapping blocks for a page fault to fix possible races with concurrent writes. To avoid lock inversion between exceptional entry lock and transaction start, start the transaction already in ext4_dax_huge_fault(). Fixes: 9f141d6e Link: http://lkml.kernel.org/r/20170510085419.27601-4-jack@suse.czSigned-off-by:
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Jan Kara authored
Currently, we didn't invalidate page tables during invalidate_inode_pages2() for DAX. That could result in e.g. 2MiB zero page being mapped into page tables while there were already underlying blocks allocated and thus data seen through mmap were different from data seen by read(2). The following sequence reproduces the problem: - open an mmap over a 2MiB hole - read from a 2MiB hole, faulting in a 2MiB zero page - write to the hole with write(3p). The write succeeds but we incorrectly leave the 2MiB zero page mapping intact. - via the mmap, read the data that was just written. Since the zero page mapping is still intact we read back zeroes instead of the new data. Fix the problem by unconditionally calling invalidate_inode_pages2_range() in dax_iomap_actor() for new block allocations and by properly invalidating page tables in invalidate_inode_pages2_range() for DAX mappings. Fixes: c6dcf52c Link: http://lkml.kernel.org/r/20170510085419.27601-3-jack@suse.czSigned-off-by:
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Ross Zwisler authored
Patch series "mm,dax: Fix data corruption due to mmap inconsistency", v4. This series fixes data corruption that can happen for DAX mounts when page faults race with write(2) and as a result page tables get out of sync with block mappings in the filesystem and thus data seen through mmap is different from data seen through read(2). The series passes testing with t_mmap_stale test program from Ross and also other mmap related tests on DAX filesystem. This patch (of 4): dax_invalidate_mapping_entry() currently removes DAX exceptional entries only if they are clean and unlocked. This is done via: invalidate_mapping_pages() invalidate_exceptional_entry() dax_invalidate_mapping_entry() However, for page cache pages removed in invalidate_mapping_pages() there is an additional criteria which is that the page must not be mapped. This is noted in the comments above invalidate_mapping_pages() and is checked in invalidate_inode_page(). For DAX entries this means that we can can end up in a situation where a DAX exceptional entry, either a huge zero page or a regular DAX entry, could end up mapped but without an associated radix tree entry. This is inconsistent with the rest of the DAX code and with what happens in the page cache case. We aren't able to unmap the DAX exceptional entry because according to its comments invalidate_mapping_pages() isn't allowed to block, and unmap_mapping_range() takes a write lock on the mapping->i_mmap_rwsem. Since we essentially never have unmapped DAX entries to evict from the radix tree, just remove dax_invalidate_mapping_entry(). Fixes: c6dcf52c ("mm: Invalidate DAX radix tree entries only if appropriate") Link: http://lkml.kernel.org/r/20170510085419.27601-2-jack@suse.czSigned-off-by: -
Andrew Morton authored
Cc: Tigran Aivazian <aivazian.tigran@gmail.com> Signed-off-by:
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Michal Hocko authored
Commit 1f5307b1 ("mm, vmalloc: properly track vmalloc users") has pulled asm/pgtable.h include dependency to linux/vmalloc.h and that turned out to be a bad idea for some architectures. E.g. m68k fails with In file included from arch/m68k/include/asm/pgtable_mm.h:145:0, from arch/m68k/include/asm/pgtable.h:4, from include/linux/vmalloc.h:9, from arch/m68k/kernel/module.c:9: arch/m68k/include/asm/mcf_pgtable.h: In function 'nocache_page': >> arch/m68k/include/asm/mcf_pgtable.h:339:43: error: 'init_mm' undeclared (first use in this function) #define pgd_offset_k(address) pgd_offset(&init_mm, address) as spotted by kernel build bot. nios2 fails for other reason In file included from include/asm-generic/io.h:767:0, from arch/nios2/include/asm/io.h:61, from include/linux/io.h:25, from arch/nios2/include/asm/pgtable.h:18, from include/linux/mm.h:70, from include/linux/pid_namespace.h:6, from include/linux/ptrace.h:9, from arch/nios2/include/uapi/asm/elf.h:23, from arch/nios2/include/asm/elf.h:22, from include/linux/elf.h:4, from include/linux/module.h:15, from init/main.c:16: include/linux/vmalloc.h: In function '__vmalloc_node_flags': include/linux/vmalloc.h:99:40: error: 'PAGE_KERNEL' undeclared (first use in this function); did you mean 'GFP_KERNEL'? which is due to the newly added #include <asm/pgtable.h>, which on nios2 includes <linux/io.h> and thus <asm/io.h> and <asm-generic/io.h> which again includes <linux/vmalloc.h>. Tweaking that around just turns out a bigger headache than necessary. This patch reverts 1f5307b1 and reimplements the original fix in a different way. __vmalloc_node_flags can stay static inline which will cover vmalloc* functions. We only have one external user (kvmalloc_node) and we can export __vmalloc_node_flags_caller and provide the caller directly. This is much simpler and it doesn't really need any games with header files. [akpm@linux-foundation.org: coding-style fixes] [mhocko@kernel.org: revert old comment] Link: http://lkml.kernel.org/r/20170509211054.GB16325@dhcp22.suse.cz Fixes: 1f5307b1 ("mm, vmalloc: properly track vmalloc users") Link: http://lkml.kernel.org/r/20170509153702.GR6481@dhcp22.suse.czSigned-off-by:
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SeongJae Park authored
One return case of `__collapse_huge_page_swapin()` does not invoke tracepoint while every other return case does. This commit adds a tracepoint invocation for the case. Link: http://lkml.kernel.org/r/20170507101813.30187-1-sj38.park@gmail.comSigned-off-by:
SeongJae Park <sj38.park@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by:
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Martin Liska authored
Starting from GCC 7.1, __gcov_exit is a new symbol expected to be implemented in a profiling runtime. [akpm@linux-foundation.org: coding-style fixes] [mliska@suse.cz: v2] Link: http://lkml.kernel.org/r/e63a3c59-0149-c97e-4084-20ca8f146b26@suse.cz Link: http://lkml.kernel.org/r/8c4084fa-3885-29fe-5fc4-0d4ca199c785@suse.czSigned-off-by:
Martin Liska <mliska@suse.cz> Acked-by:
Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by:
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Reza Arbab authored
After commit e2ecc8a7 ("mm, vmstat: print non-populated zones in zoneinfo"), /proc/zoneinfo will show unpopulated zones. A memoryless node, having no populated zones at all, was previously ignored, but will now trigger the WARN() in is_zone_first_populated(). Remove this warning, as its only purpose was to warn of a situation that has since been enabled. Aside: The "per-node stats" are still printed under the first populated zone, but that's not necessarily the first stanza any more. I'm not sure which criteria is more important with regard to not breaking parsers, but it looks a little weird to the eye. Fixes: e2ecc8a7 ("mm, vmstat: print node-based stats in zoneinfo file") Link: http://lkml.kernel.org/r/1493854905-10918-1-git-send-email-arbab@linux.vnet.ibm.comSigned-off-by:
Reza Arbab <arbab@linux.vnet.ibm.com> Cc: David Rientjes <rientjes@google.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by:
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Deepa Dinamani authored
All uses of the current_fs_time() function have been replaced by other time interfaces. And, its use cases can be fulfilled by current_time() or ktime_get_* variants. Link: http://lkml.kernel.org/r/1491613030-11599-13-git-send-email-deepa.kernel@gmail.comSigned-off-by:
Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Michal Hocko authored
Laurent Dufour has noticed that hwpoinsoned pages are kept charged. In his particular case he has hit a bad_page("page still charged to cgroup") when onlining a hwpoison page. While this looks like something that shouldn't happen in the first place because onlining hwpages and returning them to the page allocator makes only little sense it shows a real problem. hwpoison pages do not get freed usually so we do not uncharge them (at least not since commit 0a31bc97 ("mm: memcontrol: rewrite uncharge API")). Each charge pins memcg (since e8ea14cc ("mm: memcontrol: take a css reference for each charged page")) as well and so the mem_cgroup and the associated state will never go away. Fix this leak by forcibly uncharging a LRU hwpoisoned page in delete_from_lru_cache(). We also have to tweak uncharge_list because it cannot rely on zero ref count for these pages. [akpm@linux-foundation.org: coding-style fixes] Fixes: 0a31bc97 ("mm: memcontrol: rewrite uncharge API") Link: http://lkml.kernel.org/r/20170502185507.GB19165@dhcp22.suse.czSigned-off-by:Laurent Dufour <ldufour@linux.vnet.ibm.com> Tested-by:
Balbir Singh <bsingharora@gmail.com> Reviewed-by:
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimmLinus Torvalds authored
Pull libnvdimm fixes from Dan Williams: "Incremental fixes and a small feature addition on top of the main libnvdimm 4.12 pull request: - Geert noticed that tinyconfig was bloated by BLOCK selecting DAX. The size regression is fixed by moving all dax helpers into the dax-core and only specifying "select DAX" for FS_DAX and dax-capable drivers. He also asked for clarification of the NR_DEV_DAX config option which, on closer look, does not need to be a config option at all. Mike also throws in a DEV_DAX_PMEM fixup for good measure. - Ben's attention to detail on -stable patch submissions caught a case where the recent fixes to arch_copy_from_iter_pmem() missed a condition where we strand dirty data in the cache. This is tagged for -stable and will also be included in the rework of the pmem api to a proposed {memcpy,copy_user}_flushcache() interface for 4.13. - Vishal adds a feature that missed the initial pull due to pending review feedback. It allows the kernel to clear media errors when initializing a BTT (atomic sector update driver) instance on a pmem namespace. - Ross noticed that the dax_device + dax_operations conversion broke __dax_zero_page_range(). The nvdimm unit tests fail to check this path, but xfstests immediately trips over it. No excuse for missing this before submitting the 4.12 pull request. These all pass the nvdimm unit tests and an xfstests spot check. The set has received a build success notification from the kbuild robot" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: filesystem-dax: fix broken __dax_zero_page_range() conversion libnvdimm, btt: ensure that initializing metadata clears poison libnvdimm: add an atomic vs process context flag to rw_bytes x86, pmem: Fix cache flushing for iovec write < 8 bytes device-dax: kill NR_DEV_DAX block, dax: move "select DAX" from BLOCK to FS_DAX device-dax: Tell kbuild DEV_DAX_PMEM depends on DEV_DAX -
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "This contains a one-liner change that has a significant impact: disabling the build of OSS. It's been unmaintained for long time, and we'd like to drop the stuff. Finally, as the first step, stop the build. Let's see whether it works without much complaints. Other than that, there are two small fixes for HD-audio" * tag 'sound-fix-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: sound: Disable the build of OSS drivers ALSA: hda: Fix cpu lockup when stopping the cmd dmas ALSA: hda - Add mute led support for HP EliteBook 840 G3
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull more power-supply updates from Sebastian Reichel: "The power-supply subsystem has a few more changes for the v4.12 merge window: - New battery driver for AXP20X and AXP22X PMICs - Improve max17042_battery for usage on x86 - Misc small cleanups & fixes" * tag 'for-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (34 commits) power: supply: cpcap-charger: Keep trickle charger bits disabled power: supply: cpcap-charger: Fix enable for 3.8V charge setting power: supply: cpcap-charger: Fix charge voltage configuration power: supply: cpcap-charger: Fix charger name power: supply: twl4030-charger: make twl4030_bci_property_is_writeable static power: supply: sbs-battery: Add alert callback mailmap: add Sebastian Reichel power: supply: avoid unused twl4030-madc.h power: supply: sbs-battery: Correct supply status with current draw power: supply: sbs-battery: Don't ignore the first external power change power: supply: pda_power: move from timer to delayed_work power: supply: max17042_battery: Add support for the SCOPE property power: supply: max17042_battery: Add support for the CHARGE_NOW property power: supply: max17042_battery: Add support for the CHARGE_FULL_DESIGN property power: supply: max17042_battery: mAh readings depend on r_sns value power: supply: max17042_battery: Add support for the VOLT_MIN property power: supply: max17042_battery: Add support for the TECHNOLOGY attribute power: supply: max17042_battery: Add external_power_changed callback power: supply: max17042_battery: Add support for the STATUS property power: supply: max17042_battery: Add default platform_data fallback data ...
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