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Bart Van Assche 83b2348e27 ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer() 
Since acpi_os_get_timer() may be called after the timer subsystem has
been suspended, use the jiffies counter instead of ktime_get(). This
patch avoids that the following warning is reported during hibernation:

WARNING: CPU: 0 PID: 612 at kernel/time/timekeeping.c:751 ktime_get+0x116/0x120
RIP: 0010:ktime_get+0x116/0x120
Call Trace:
 acpi_os_get_timer+0xe/0x30
 acpi_ds_exec_begin_control_op+0x175/0x1de
 acpi_ds_exec_begin_op+0x2c7/0x39a
 acpi_ps_create_op+0x573/0x5e4
 acpi_ps_parse_loop+0x349/0x1220
 acpi_ps_parse_aml+0x25b/0x6da
 acpi_ps_execute_method+0x327/0x41b
 acpi_ns_evaluate+0x4e9/0x6f5
 acpi_ut_evaluate_object+0xd9/0x2f2
 acpi_rs_get_method_data+0x8f/0x114
 acpi_walk_resources+0x122/0x1b6
 acpi_pci_link_get_current.isra.2+0x157/0x280
 acpi_pci_link_set+0x32f/0x4a0
 irqrouter_resume+0x58/0x80
 syscore_resume+0x84/0x380
 hibernation_snapshot+0x20c/0x4f0
 hibernate+0x22d/0x3a6
 state_store+0x99/0xa0
 kobj_attr_store+0x37/0x50
 sysfs_kf_write+0x87/0xa0
 kernfs_fop_write+0x1a5/0x240
 __vfs_write+0xd2/0x410
 vfs_write+0x101/0x250
 ksys_write+0xab/0x120
 __x64_sys_write+0x43/0x50
 do_syscall_64+0x71/0x220
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fixes: 164a08cee1 (ACPICA: Dispatcher: Introduce timeout mechanism for infinite loop detection)
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
References: https://lists.01.org/pipermail/lkp/2018-April/008406.html
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: 4.16+ <stable@vger.kernel.org> # 4.16+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 		2018-10-18 09:23:16 +02:00
Documentation Char/Misc fixes for 4.19-rc7 2018-10-07 08:15:57 +02:00
LICENSES LICENSES: Add Linux-OpenIB license text 2018-04-27 16:41:53 -06:00
arch libnvdimm/dax 4.19-rc8 2018-10-14 08:34:31 +02:00
block blk-wbt: wake up all when we scale up, not down 2018-10-11 13:31:28 -06:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto DMAengine updates for v4.19-rc1 2018-08-18 15:55:59 -07:00
drivers ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer() 2018-10-18 09:23:16 +02:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs libnvdimm/dax 4.19-rc8 2018-10-14 08:34:31 +02:00
include More arm64 fixes 2018-10-13 09:05:37 +02:00
init Kbuild updates for v4.19 (2nd) 2018-08-25 13:40:38 -07:00
ipc ipc/shm.c: use ERR_CAST() for shm_lock() error return 2018-10-05 16:32:04 -07:00
kernel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-10-12 12:35:02 +02:00
lib * Fix a stack overflow in lib/bch.c 2018-10-12 12:54:26 +02:00
mm mm/thp: fix call to mmu_notifier in set_pmd_migration_entry() v2 2018-10-13 09:31:02 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-12 09:01:59 +02:00
samples samples: disable CONFIG_SAMPLES for UML 2018-10-11 02:15:46 +09:00
scripts Kbuild fixes for v4.19 (2nd) 2018-10-11 19:23:07 +02:00
security Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-25 13:28:58 +02:00
sound ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 2018-10-04 07:50:48 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-12 09:01:59 +02:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: Remove obsolete kvm_unmap_hva notifier backend 2018-09-07 15:06:02 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
…
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS MAINTAINERS: use the correct location for dt-bindings includes for mux 2018-10-12 17:36:39 +02:00
Makefile Linux 4.19-rc8 2018-10-15 07:20:24 +02:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.