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2018-04-02Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/sprd' and ↵Mark Brown
'spi/topic/tegra20-slink' into spi-next
2018-04-02Merge remote-tracking branches 'spi/topic/jcore', 'spi/topic/kconfig', ↵Mark Brown
'spi/topic/orion', 'spi/topic/pxa2xx' and 'spi/topic/rspi' into spi-next
2018-04-02Merge remote-tracking branches 'spi/topic/atmel', 'spi/topic/bcm-qspi', ↵Mark Brown
'spi/topic/bcm2835aux', 'spi/topic/dw' and 'spi/topic/gpio' into spi-next
2018-04-02Merge remote-tracking branch 'spi/topic/samsung' into spi-nextMark Brown
2018-04-02Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/pxa2xx' and ↵Mark Brown
'spi/fix/unregiser' into spi-linus
2018-04-02Merge remote-tracking branch 'spi/fix/dma' into spi-linusMark Brown
2018-04-02intel-hid: clean up and sort header filesAlex Hung
Removed unused header files and sorted them alphabetically. No functional changes are made. Signed-off-by: Alex Hung <alex.hung@canonical.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-04-02MAINTAINERS: update Andi's e-mailAndi Shyti
Because I will be leaving Samsung soon, update my e-mail address to andi@etezian.org For reachability update also mailcap. CC: Krzysztof Kozlowski <krzk@kernel.org> CC: Kukjin Kim <kgene@kernel.org> CC: linux-samsung-soc@vger.kernel.org Signed-off-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-04-02platform/x86: silead_dmi: Add entry for the Yours Y8W81 tabletHans de Goede
Add an entry with touchscreen info for the Yours Y8W81 8" tablet. This tablet has the same case and mostly the same internals as the Chuwi Vi8. Both seem to be from an ODM called inet-tek. Both are labelled: "INET-I86M-REVxx" on the PCB, with the Chuwi Vi8 being REV03 (and having an ALC5640 audio codec) and the Yours Y8W81 being REV21 (and having an ALC5651 audio codec). The wifi, accelerometer and touchscreen are identical on both. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-04-02ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_threshEric Dumazet
I forgot to change ip6frag_low_thresh proc_handler from proc_dointvec_minmax to proc_doulongvec_minmax Fixes: 3e67f106f619 ("inet: frags: break the 2GB limit for frags storage") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-02thermal: Add cooling device's statistics in sysfsViresh Kumar
This extends the sysfs interface for thermal cooling devices and exposes some pretty useful statistics. These statistics have proven to be quite useful specially while doing benchmarks related to the task scheduler, where we want to make sure that nothing has disrupted the test, specially the cooling device which may have put constraints on the CPUs. The information exposed here tells us to what extent the CPUs were constrained by the thermal framework. The write-only "reset" file is used to reset the statistics. The read-only "time_in_state_ms" file shows the time (in msec) spent by the device in the respective cooling states, and it prints one line per cooling state. The read-only "total_trans" file shows single positive integer value showing the total number of cooling state transitions the device has gone through since the time the cooling device is registered or the time when statistics were reset last. The read-only "trans_table" file shows a two dimensional matrix, where an entry <i,j> (row i, column j) represents the number of transitions from State_i to State_j. This is how the directory structure looks like for a single cooling device: $ ls -R /sys/class/thermal/cooling_device0/ /sys/class/thermal/cooling_device0/: cur_state max_state power stats subsystem type uevent /sys/class/thermal/cooling_device0/power: autosuspend_delay_ms runtime_active_time runtime_suspended_time control runtime_status /sys/class/thermal/cooling_device0/stats: reset time_in_state_ms total_trans trans_table This is tested on ARM 64-bit Hisilicon hikey620 board running Ubuntu and ARM 64-bit Hisilicon hikey960 board running Android. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2018-04-02orangefs: open code short single-use functionsMartin Brandenburg
Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-02orangefs: replace vmalloc and memset with vzallocColin Ian King
Use vzalloc instead of the vmalloc, memset combo Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-02orangefs: bug fix for a race condition when getting a slotDavid Reynolds
When a slot becomes free, call wake_up_locked regardless of the number of slots available. Without this patch, wake_up_locked is only called when going from no free slots to one. This means that there is a chance a waiting task will not be woken up. In many cases, the system will bounce between 0 and 1 free slots, and the waiting tasks will be woken up. But if there is still a waiting task and another slot becomes available before the number of free slots reaches zero, that waiting task may never be woken up since the number of free slots may never reach zero again. The bug behavior is easy to reproduce with the following script, where /mnt/orangefs is an OrangeFS file system. for i in {1..100}; do for j in {1..20}; do dd if=/dev/zero of=/mnt/orangefs/tmp$j bs=32768 count=32 & done wait done Signed-off-by: David Reynolds <david@omnibond.com> Reviewed-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-04-02perf trace: Show only failing syscallsArnaldo Carvalho de Melo
For instance: # perf probe "vfs_getname=getname_flags:72 pathname=result->name:string" Added new event: probe:vfs_getname (on getname_flags:72 with pathname=result->name:string) You can now use it in all perf tools, such as: perf record -e probe:vfs_getname -aR sleep 1 # perf trace --failure sleep 1 0.043 ( 0.010 ms): sleep/10978 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT No such file or directory For reference, here are all the syscalls in this case: # perf trace sleep 1 ? ( ): sleep/10976 ... [continued]: execve()) = 0 0.027 ( 0.001 ms): sleep/10976 brk() = 0x55bdc2d04000 0.044 ( 0.010 ms): sleep/10976 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT No such file or directory 0.057 ( 0.006 ms): sleep/10976 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC) = 3 0.064 ( 0.002 ms): sleep/10976 fstat(fd: 3, statbuf: 0x7fffac22b370) = 0 0.067 ( 0.003 ms): sleep/10976 mmap(len: 111457, prot: READ, flags: PRIVATE, fd: 3) = 0x7feec8615000 0.071 ( 0.001 ms): sleep/10976 close(fd: 3) = 0 0.080 ( 0.007 ms): sleep/10976 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC) = 3 0.088 ( 0.002 ms): sleep/10976 read(fd: 3, buf: 0x7fffac22b538, count: 832) = 832 0.092 ( 0.001 ms): sleep/10976 fstat(fd: 3, statbuf: 0x7fffac22b3d0) = 0 0.094 ( 0.002 ms): sleep/10976 mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS) = 0x7feec8613000 0.099 ( 0.004 ms): sleep/10976 mmap(len: 3889792, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3) = 0x7feec8057000 0.104 ( 0.007 ms): sleep/10976 mprotect(start: 0x7feec8203000, len: 2097152) = 0 0.112 ( 0.005 ms): sleep/10976 mmap(addr: 0x7feec8403000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1753088) = 0x7feec8403000 0.120 ( 0.003 ms): sleep/10976 mmap(addr: 0x7feec8409000, len: 14976, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED) = 0x7feec8409000 0.128 ( 0.001 ms): sleep/10976 close(fd: 3) = 0 0.139 ( 0.001 ms): sleep/10976 arch_prctl(option: 4098, arg2: 140663540761856) = 0 0.186 ( 0.004 ms): sleep/10976 mprotect(start: 0x7feec8403000, len: 16384, prot: READ) = 0 0.204 ( 0.003 ms): sleep/10976 mprotect(start: 0x55bdc0ec3000, len: 4096, prot: READ) = 0 0.209 ( 0.004 ms): sleep/10976 mprotect(start: 0x7feec8631000, len: 4096, prot: READ) = 0 0.214 ( 0.010 ms): sleep/10976 munmap(addr: 0x7feec8615000, len: 111457) = 0 0.269 ( 0.001 ms): sleep/10976 brk() = 0x55bdc2d04000 0.271 ( 0.002 ms): sleep/10976 brk(brk: 0x55bdc2d25000) = 0x55bdc2d25000 0.274 ( 0.001 ms): sleep/10976 brk() = 0x55bdc2d25000 0.278 ( 0.007 ms): sleep/10976 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.288 ( 0.001 ms): sleep/10976 fstat(fd: 3</usr/lib/locale/locale-archive>, statbuf: 0x7feec8408aa0) = 0 0.290 ( 0.003 ms): sleep/10976 mmap(len: 113045344, prot: READ, flags: PRIVATE, fd: 3) = 0x7feec1488000 0.297 ( 0.001 ms): sleep/10976 close(fd: 3</usr/lib/locale/locale-archive>) = 0 0.325 (1000.193 ms): sleep/10976 nanosleep(rqtp: 0x7fffac22c0b0) = 0 1000.560 ( 0.006 ms): sleep/10976 close(fd: 1) = 0 1000.573 ( 0.005 ms): sleep/10976 close(fd: 2) = 0 1000.596 ( ): sleep/10976 exit_group() # And can be done systemwide, etc, with backtraces: # perf trace --max-stack=16 --failure sleep 1 0.048 ( 0.015 ms): sleep/11092 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT No such file or directory __access (inlined) dl_main (/usr/lib64/ld-2.26.so) # Or for some specific syscalls: # perf trace --max-stack=16 -e openat --failure cat /tmp/rien cat: /tmp/rien: No such file or directory 0.251 ( 0.012 ms): cat/11106 openat(dfd: CWD, filename: /tmp/rien) = -1 ENOENT No such file or directory __libc_open64 (inlined) main (/usr/bin/cat) __libc_start_main (/usr/lib64/libc-2.26.so) _start (/usr/bin/cat) # Look for inotify* syscalls that fail, system wide, for 2 seconds, with backtraces: # perf trace -a --max-stack=16 --failure -e inotify* sleep 2 819.165 ( 0.058 ms): gmain/1724 inotify_add_watch(fd: 8<anon_inode:inotify>, pathname: /home/acme/~, mask: 16789454) = -1 ENOENT No such file or directory __GI_inotify_add_watch (inlined) _ik_watch (/usr/lib64/libgio-2.0.so.0.5400.3) _ip_start_watching (/usr/lib64/libgio-2.0.so.0.5400.3) im_scan_missing (/usr/lib64/libgio-2.0.so.0.5400.3) g_timeout_dispatch (/usr/lib64/libglib-2.0.so.0.5400.3) g_main_context_dispatch (/usr/lib64/libglib-2.0.so.0.5400.3) g_main_context_iterate.isra.23 (/usr/lib64/libglib-2.0.so.0.5400.3) g_main_context_iteration (/usr/lib64/libglib-2.0.so.0.5400.3) glib_worker_main (/usr/lib64/libglib-2.0.so.0.5400.3) g_thread_proxy (/usr/lib64/libglib-2.0.so.0.5400.3) start_thread (/usr/lib64/libpthread-2.26.so) __GI___clone (inlined) # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-8f7d3mngaxvi7tlzloz3n7cs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-04-02tools headers: Synchronize x86's cpufeatures.hArnaldo Carvalho de Melo
Due to these commits: 1da961d72ab0 ("x86/cpufeatures: Add Intel Total Memory Encryption cpufeature") 7958b2246fad ("x86/cpufeatures: Add Intel PCONFIG cpufeature") To silence this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' Nothing in those csets requires changes in tools/perf/, so just sync it to silence the build. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-m2yl8wj0uxs8pncq2ncfcx46@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-04-02perf tools: Add a "dso_size" sort orderKim Phillips
Add DSO size to perf report/top sort output list. This includes adding a map__size fn to map.h, which is approximately equal to the DSO data file_size: DSO file size map (end-start) file / (end-start) libwebkit2gtk-4.0.so.37.24.9 43260072 41295872 95% libglib-2.0.so.0.5400.1 1125680 1118208 99% libc-2.26.so 1960656 1925120 101% libdbus-1.so.3.14.13 309456 303104 102% Sample output: $ ./perf report -s dso_size,dso Samples: 2K of event 'cycles:uppp', Event count (approx.): 128373340 Overhead DSO size Shared Object 90.62% unknown [unknown] 2.87% 1118208 libglib-2.0.so.0.5400.1 1.92% 303104 libdbus-1.so.3.14.13 1.42% 1925120 libc-2.26.so 0.77% 41295872 libwebkit2gtk-4.0.so.37.24.9 0.61% 335872 libgobject-2.0.so.0.5400.1 0.41% 1052672 libgdk-3.so.0.2200.25 0.36% 106496 libpthread-2.26.so 0.29% 221184 dbus-daemon 0.17% 159744 ld-2.26.so 0.13% 49152 libwayland-client.so.0.3.0 0.12% 1642496 libgio-2.0.so.0.5400.1 0.09% 7327744 libgtk-3.so.0.2200.25 0.09% 12324864 libmozjs-52.so.0.0.0 0.05% 4796416 perf 0.04% 843776 libgjs.so.0.0.0 0.03% 1409024 libmutter-clutter-1.so Committer testing: To sort by DSO size, use: # perf report -F dso_size,dso,overhead -s dso_size <SNIP> 3465216 libdns-export.so.174.0.1 0.00% 3522560 libgc.so.1.0.3 0.00% 3538944 libbfd-2.29-13.fc27.so 0.59% 3670016 libunistring.so.2.1.0 0.00% 3723264 libguile-2.0.so.22.8.1 0.00% 3776512 libgio-2.0.so.0.5400.3 0.00% 3891200 libc-2.26.so 0.96% 3944448 libmozjs-17.0.so 0.00% 4218880 libperl.so.5.26.1 0.18% 4452352 libpython2.7.so.1.0 0.02% 4472832 perf 0.02% 4603904 git 0.01% 4751360 libcrypto.so.1.1.0g 0.00% 5005312 libslang.so.2.3.1 0.00% 7315456 libgtk-3.so.0.2200.26 0.09% 8818688 i965_dri.so 2.46% 8818688 i965_dri.so (deleted) 1.26% 12414976 libmozjs-52.so.0.0.0 0.03% 23642112 cc1 2.02% 27889664 [kernel.kallsyms] 25.41% 80834560 libxul.so (deleted) 15.68% 98078720 chrome 32.03% 1056964608 [kernel.kallsyms] 1.59% # Signed-off-by: Kim Phillips <kim.phillips@arm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180327060956.1c01ebe67a2a941bb4468c6f@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-04-02ceph: quota: report root dir quota usage in statfsLuis Henriques
This commit changes statfs default behaviour when reporting usage statistics. Instead of using the overall filesystem usage, statfs now reports the quota for the filesystem root, if ceph.quota.max_bytes has been set for this inode. If quota hasn't been set, it falls back to the old statfs behaviour. A new mount option is also added ('noquotadf') to disable this behaviour. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: add counter for snaprealms with quotaLuis Henriques
By keeping a counter with the number of snaprealms that have quota set allows to optimize the functions that need to walk throught the realms hierarchy looking for quotas. Thus, if this counter is zero it's safe to assume that there are no realms with quota. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: cache inode pointer in ceph_snap_realmLuis Henriques
Keep a pointer to the inode in struct ceph_snap_realm. This allows to optimize functions that walk the realms hierarchy (e.g. in quotas). Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: fix root quota realm checkYan, Zheng
Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: don't check quota for snap inodeYan, Zheng
snap inode's i_snap_realm is not pointing to ceph_snap_realm. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: update MDS when max_bytes is approachingLuis Henriques
When we're reaching the ceph.quota.max_bytes limit, i.e., when writing more than 1/16th of the space left in a quota realm, update the MDS with the new file size. This mirrors the fuse-client approach with commit 122c50315ed1 ("client: Inform mds file size when approaching quota limit"), in the ceph git tree. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: support for ceph.quota.max_bytesLuis Henriques
Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: don't allow cross-quota renamesLuis Henriques
This patch changes ceph_rename so that -EXDEV is returned if an attempt is made to mv a file between two different dir trees with different quotas setup. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: support for ceph.quota.max_filesLuis Henriques
This patch adds support for the max_files quota. It hooks into all the ceph functions that add new filesystem objects that need to be checked against the quota limits. When these limits are hit, -EDQUOT is returned. Note that we're not checking quotas on ceph_link(). ceph_link doesn't really create a new inode, and since the MDS doesn't update the directory statistics when a new (hard) link is created (only with symlinks), they are not accounted as a new file. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: quota: add initial infrastructure to support cephfs quotasLuis Henriques
This patch adds the infrastructure required to support cephfs quotas as it is currently implemented in the ceph fuse client. Cephfs quotas can be set on any directory, and can restrict the number of bytes or the number of files stored beneath that point in the directory hierarchy. Quotas are set using the extended attributes 'ceph.quota.max_files' and 'ceph.quota.max_bytes', and can be removed by setting these attributes to '0'. Link: http://tracker.ceph.com/issues/22372 Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02Merge branches 'pm-cpuidle' and 'pm-tools'Rafael J. Wysocki
* pm-cpuidle: cpuidle: poll_state: Avoid invoking local_clock() too often PM: cpuidle/suspend: Add s2idle usage and time state attributes cpuidle: Enable coupled cpuidle support on Exynos3250 platform cpuidle: poll_state: Add time limit to poll_idle() ARM: cpuidle: Drop memory allocation error message from arm_idle_init_cpu() * pm-tools: pm-graph: AnalyzeSuspend v5.0 pm-graph: AnalyzeBoot v2.2 pm-graph: config files and installer
2018-04-02Merge branch 'pm-cpufreq'Rafael J. Wysocki
* pm-cpufreq: (38 commits) cpufreq: CPPC: Use transition_delay_us depending transition_latency cpufreq: tegra186: Don't validate the frequency table twice cpufreq: speedstep: Don't validate the frequency table twice cpufreq: sparc: Don't validate the frequency table twice cpufreq: sh: Don't validate the frequency table twice cpufreq: sfi: Don't validate the frequency table twice cpufreq: scpi: Don't validate the frequency table twice cpufreq: sc520: Don't validate the frequency table twice cpufreq: s3c24xx: Don't validate the frequency table twice cpufreq: qoirq: Don't validate the frequency table twice cpufreq: pxa: Don't validate the frequency table twice cpufreq: ppc_cbe: Don't validate the frequency table twice cpufreq: powernow: Don't validate the frequency table twice cpufreq: p4-clockmod: Don't validate the frequency table twice cpufreq: mediatek: Don't validate the frequency table twice cpufreq: longhaul: Don't validate the frequency table twice cpufreq: ia64-acpi: Don't validate the frequency table twice cpufreq: elanfreq: Don't validate the frequency table twice cpufreq: e_powersaver: Don't validate the frequency table twice cpufreq: cpufreq-dt: Don't validate the frequency table twice ...
2018-04-02Merge branches 'pm-core', 'pm-sleep' and 'acpi-pm'Rafael J. Wysocki
* pm-core: driver core: Introduce device links reference counting PM / wakeirq: Add wakeup name to dedicated wake irqs * pm-sleep: PM / hibernate: Change message when writing to /sys/power/resume PM / hibernate: Make passing hibernate offsets more friendly PCMCIA / PM: Avoid noirq suspend aborts during suspend-to-idle * acpi-pm: ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA ACPI / PM: Allow deeper wakeup power states with no _SxD nor _SxW ACPI / PM: Reduce LPI constraints logging noise ACPI / PM: Do not reconfigure GPEs for suspend-to-idle
2018-04-02Merge branches 'acpi-osi', 'acpi-scan', 'acpi-tad', 'acpi-video' and 'acpi-misc'Rafael J. Wysocki
* acpi-osi: ACPI / OSI: Add OEM _OSI strings to disable NVidia RTD3 * acpi-scan: ACPI / scan: Send change uevent with offine environmental data * acpi-tad: ACPI: Add Time and Alarm Device (TAD) driver * acpi-video: ACPI / video: Add quirk to force acpi-video backlight on Samsung 670Z5E * acpi-misc: ACPI / Kconfig: Update ACPI_PROCFS_POWER help text
2018-04-02Merge branches 'acpi-tables', 'acpi-cppc' and 'acpi-pci'Rafael J. Wysocki
* acpi-tables: ACPI: add NFIT and HMAT to the initrd override list * acpi-cppc: ACPI / CPPC: Update all pr_(debug/err) messages to log the susbspace id * acpi-pci: ACPI / PCI: pci_link: Allow the absence of _PRS and change log level
2018-04-02Merge branches 'acpi-battery', 'acpi-doc' and 'acpi-pmic'Rafael J. Wysocki
* acpi-battery: Revert "ACPI: battery: Add the ThinkPad "Not Charging" quirk" ACPI: battery: do not export degraded capacity values over 100 ACPI: battery: make function __battery_hook_unregister() static ACPI: battery: Add the ThinkPad "Not Charging" quirk thinkpad_acpi: Add support for battery thresholds power: add to_power_supply macro to the API battery: Add the battery hooking API * acpi-doc: ACPI: sysfs: Update device object sysfs documentation * acpi-pmic: ACPI / PMIC: Replace license boilerplate with SPDX license identifier
2018-04-02Merge branch 'acpica'Rafael J. Wysocki
* acpica: (21 commits) ACPICA: Update version to 20180313 ACPICA: Cleanup/simplify module-level code support ACPICA: Events: add a return on failure from acpi_hw_register_read ACPICA: adding SPDX headers ACPICA: Rename a global for clarity, no functional change ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro ACPICA: Change a compile-time option to a runtime option ACPICA: Remove calling of _STA from acpi_get_object_info() ACPICA: AML Debug Object: Don't ignore output of zero-length strings ACPICA: Fix memory leak on unusual memory leak ACPICA: Events: Dispatch GPEs after enabling for the first time ACPICA: Events: Add parallel GPE handling support to fix potential redundant _Exx evaluations ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c ACPICA: Update version to 20180209 ACPICA: Add option to disable Package object name resolution errors ACPICA: Integrate package handling with module-level code ACPICA: Revert "Fix for implicit result conversion for the To____ functions" ACPICA: Update for some debug output. No functional change ACPICA: Update error message, no functional change ...
2018-04-02rbd: remove VLA usageKyle Spiers
As part of the effort to remove VLAs from the kernel[1], this moves the literal values into the stack array calculation instead of using a variable for the sizing. The resulting size can be found from sizeof(buf). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kyle Spiers <kyle@spiers.me> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02rbd: fix spelling mistake: "reregisteration" -> "reregistration"Colin Ian King
Trivial fix to spelling mistake in rdb_warn message text. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: rename function drop_leases() to a more descriptive nameYan, Zheng
Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: fix invalid point dereference for error case in mdsc destroyChengguang Xu
1. set fsc->mdsc after successfully allocate all necessary memory in mdsc init. 2. if fsc->mdsc is NULL, just skip destroy operation in mdsc destroy. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: return proper bool type to caller instead of pointerChengguang Xu
Change to return true/false only for bool type return code. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: optimize memory usageChengguang Xu
In current code, regular file and directory use same struct ceph_file_info to store fs specific data so the struct has to include some fields which are only used for directory (e.g., readdir related info), when having plenty of regular files, it will lead to memory waste. This patch introduces dedicated ceph_dir_file_info cache for readdir related thins. So that regular file does not include those unused fields anymore. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: optimize mds session registerChengguang Xu
Do memory allocation first, so that avoid unnecessary initialization of newly allocated session in error case. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02libceph, ceph: add __init attribution to init funcitonsChengguang Xu
Add __init attribution to the functions which are called only once during initiating/registering operations and deleting unnecessary symbol exports. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: filter out used flags when printing unused open flagsChengguang Xu
Filter out used access mode flags when printing unused open flags. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: don't wait on writeback when there is no more dirty pagesYan, Zheng
In sync mode, writepages() needs to write all dirty pages. But it can only write dirty pages associated with the oldest snapc. To write dirty pages associated with next snapc, it needs to wait until current writes complete. If there is no more dirty pages, writepages() should not wait on writeback. Otherwise, dirty page writeback becomes very slow. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: invalidate pages that beyond EOF in ceph_writepages_start()Yan, Zheng
Dirty pages can be associated with different capsnap. Different capsnap may have different EOF value. So invalidating dirty pages according to the largest EOF value is wrong. Dirty pages beyond EOF, but associated with other capsnap, do not get invalidated. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: mark the cap cache as unreclaimableChengguang Xu
Releasing cap is affected by many factors (e.g., avail_count/reserve_count/min_count) and min_count could be specified high volume in client mount option. Hence it's better to mark cap cache as unreclaimable in case of non-trivial discrepancies between memory shown as reclaimable and what is actually reclaimed. Signed-off-by: Chengguang Xu <cgxu519@icloud.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: change variable name to follow common ruleChengguang Xu
Variable name ci is mostly used for ceph_inode_info. Variable name fi is mostly used for ceph_file_info. Variable name cf is mostly used for ceph_cap_flush. Change variable name to follow above common rules in case of confusing. Signed-off-by: Chengguang Xu <cgxu519@icloud.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: optimizing cap reservationChengguang Xu
When caps_avail_count is in a low level, most newly trimmed caps will probably go into ->caps_list and caps_avail_count will be increased. Hence after trimming, should recheck caps_avail_count to effectly reuse newly trimmed caps. Also, when releasing unnecessary caps follow the same rule of ceph_put_cap. Signed-off-by: Chengguang Xu <cgxu519@icloud.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: release unreserved caps if having enough available capsChengguang Xu
When unreserving caps check if there is too mamy available caps in the ->caps_list, if so release unreserved caps. Signed-off-by: Chengguang Xu <cgxu519@icloud.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-04-02ceph: optimizing cap allocationChengguang Xu
When setting high volume of caps_min_count or having many unreserved caps, unused caps may always keep in the ->caps_list even can't get new cap from kmem_cache_alloc because lack of maximum limitation of caps_avail_count. Hence reuse caps in ->caps_list if available, it's maybe better than setting max limitation of caps_avail_count and releasing unused caps when reaching the limit. Signed-off-by: Chengguang Xu <cgxu519@icloud.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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