AuxXxilium/linux_dsm_epyc7002
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48e8ac2979
linux_dsm_epyc7002/drivers/char
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Bodo Stroesser 48e8ac2979 ipmi: Fix a race restarting the timer 
With recent changes it is possible for the timer handler to detect an
idle interface and not start the timer, but the thread to start an
operation at the same time.  The thread will not start the timer in that
instance, resulting in the timer not running.

Instead, move all timer operations under the lock and start the timer in
the thread if it detect non-idle and the timer is not already running.
Moving under locks allows the last timeout to be set in both the thread
and the timer.  'Timer is not running' means that the timer is not
pending and smi_timeout() is not running.  So we need a flag to detect
this correctly.

Also fix a few other timeout bugs: setting the last timeout when the
interrupt has to be disabled and the timer started, and setting the last
timeout in check_start_timer_thread possibly racing with the timer

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-17 12:23:06 -07:00
..
agp drivers/char: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
hw_random ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
ipmi ipmi: Fix a race restarting the timer 2014-04-17 12:23:06 -07:00
mwave drivers/char: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
pcmcia tty: synclink: avoid sleep_on race 2014-01-07 17:05:21 -08:00
tpm Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
xilinx_hwicap char: hwicap: Remove unnecessary dev_set_drvdata() 2013-10-03 16:03:31 -07:00
apm-emulation.c apm-emulation: add hibernation APM events to support suspend2disk 2014-01-07 13:50:28 +01:00
applicom.c applicom: use correct array offset 2013-03-15 12:23:48 -07:00
applicom.h
bfin-otp.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
bsr.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
ds1302.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ds1620.c ds1620: single_open() leak 2013-05-05 00:11:29 -04:00
dsp56k.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
dtlk.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
efirtc.c rtc: single_open() leaks 2013-05-05 00:12:29 -04:00
generic_nvram.c drivers: fix up various ->llseek() implementations 2011-07-20 20:47:58 -04:00
genrtc.c rtc: single_open() leaks 2013-05-05 00:12:29 -04:00
hangcheck-timer.c Input: sysrq - drop tty argument form handle_sysrq() 2010-08-21 00:34:45 -07:00
hpet.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
i8k.c Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2014-01-29 18:56:27 -08:00
Kconfig sonypi: Simplify dependencies 2014-04-06 12:58:13 -04:00
lp.c char: Int overflow in lp_do_ioctl(). 2013-12-18 16:39:54 -08:00
Makefile Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-01-29 20:49:12 -08:00
mbcs.c char: remove use of __devinitconst 2012-11-21 12:55:19 -08:00
mbcs.h Fix common misspellings 2011-03-31 11:26:23 -03:00
mem.c /dev/mem: handle out-of-bounds read/write 2014-02-15 11:51:02 -08:00
misc.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-11-13 15:34:18 +09:00
mmtimer.c drivers/char/mmtimer.c: Remove useless kfree 2012-09-26 13:20:40 -07:00
msm_smd_pkt.c treewide: Fix typos in printk 2013-12-19 15:10:49 +01:00
mspec.c char: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT 2013-05-21 10:07:54 -07:00
nsc_gpio.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
nvram.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
nwbutton.c char: nwbutton: open-code interruptible_sleep_on 2014-01-08 15:29:52 -08:00
nwbutton.h
nwflash.c Merge branch 'late/fixes' into fixes 2012-10-07 07:22:32 -07:00
pc8736x_gpio.c pc8736x_gpio: use platform_device_unregister in pc8736x_gpio_cleanup() 2012-10-24 15:52:29 -07:00
ppdev.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
ps3flash.c ps3flash: switch to generic_file_llseek_size() 2013-06-29 12:57:33 +04:00
random.c random: Add arch_has_random[_seed]() 2014-03-19 22:24:08 -04:00
raw.c raw: test against runtime value of max_raw_minors 2014-02-07 08:29:46 -08:00
rtc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
scx200_gpio.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
snsc_event.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.c various char drivers: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
snsc.h headers: kobject.h redux 2011-01-10 08:51:44 -08:00
sonypi.c ACPI: Remove the old /proc/acpi/event interface 2013-07-15 13:56:36 +02:00
tb0219.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
tile-srom.c drivers/char: delete non-required instances of include <linux/init.h> 2014-02-07 15:10:19 -08:00
tlclk.c tlclk: remove deprecated IRQF_DISABLED 2013-10-16 12:36:10 -07:00
toshiba.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ttyprintk.c drivers/char: don't use module_init in non-modular ttyprintk.c 2014-01-13 14:57:20 -08:00
uv_mmtimer.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
virtio_console.c pipe: kill ->map() and ->unmap() 2014-04-01 23:19:19 -04:00