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linux-stable/drivers/acpi
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Huang Ying 885b976fad ACPI, APEI, Add ERST record ID cache 
APEI ERST firmware interface and implementation has no multiple users
in mind.  For example, if there is four records in storage with ID: 1,
2, 3 and 4, if two ERST readers enumerate the records via
GET_NEXT_RECORD_ID as follow,

reader 1		reader 2
1
			2
3
			4
-1
			-1

where -1 signals there is no more record ID.

Reader 1 has no chance to check record 2 and 4, while reader 2 has no
chance to check record 1 and 3.  And any other GET_NEXT_RECORD_ID will
return -1, that is, other readers will has no chance to check any
record even they are not cleared by anyone.

This makes raw GET_NEXT_RECORD_ID not suitable for used by multiple
users.

To solve the issue, an in-memory ERST record ID cache is designed and
implemented.  When enumerating record ID, the ID returned by
GET_NEXT_RECORD_ID is added into cache in addition to be returned to
caller.  So other readers can check the cache to get all record ID
available.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2011-03-21 22:59:06 -04:00
..
acpica ACPI / ACPICA: Avoid crashing if _PRW is defined for the root object 2011-02-12 01:39:15 +01:00
apei ACPI, APEI, Add ERST record ID cache 2011-03-21 22:59:06 -04:00
ac.c Merge branch 'procfs-cleanup' into release 2011-01-12 05:00:07 -05:00
acpi_ipmi.c IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_memhotplug.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acpi_pad.c Merge branch 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 13:45:38 -07:00
atomicio.c ACPI, APEI, Fix acpi_pre_map() return value 2010-09-29 14:02:16 -04:00
battery.c ACPI / Battery: remove battery refresh on resume 2011-01-20 13:14:10 -08:00
blacklist.c Merge branch 'msi-dmi' into release 2010-10-08 22:37:46 -04:00
bus.c ACPI / PM: Drop acpi_power_nocheck 2011-01-12 04:48:45 -05:00
button.c ACPI / PM: Report wakeup events from buttons 2011-01-07 01:18:16 -05:00
cm_sbs.c
container.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
debugfs.c ACPI: debugfs custom_method open to non-root 2010-11-13 09:52:16 -08:00
dock.c ACPICA: Rename some function and variable names 2011-01-12 04:24:40 -05:00
ec.c ACPICA: Implicit notify support 2011-01-12 04:27:00 -05:00
ec_sys.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
event.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
fan.c ACPI / Fan: Rework the handling of power resources 2011-01-12 04:48:45 -05:00
glue.c ACPI / PM: Drop special ACPI wakeup flags 2011-01-07 01:18:00 -05:00
hed.c ACPI Hardware Error Device (PNP0C33) support 2010-05-19 22:40:24 -04:00
internal.h Merge branch 'suspend-ioremap-cache' into release 2011-01-12 16:11:46 -05:00
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
Makefile Merge branch 'ipmi' into release 2011-01-12 05:03:13 -05:00
numa.c x86, ia64, acpi: Clean up x86-ism in drivers/acpi/numa.c 2011-01-12 12:15:09 +01:00
nvs.c ACPI: Introduce acpi_os_ioremap() 2011-01-20 18:30:17 -08:00
osl.c ACPI: Fix acpi_os_read_memory() and acpi_os_write_memory() (v2) 2011-02-08 23:37:16 +01:00
pci_bind.c
pci_irq.c ACPI: remove unused declaration of proc_fs.h 2010-10-15 22:03:36 -04:00
pci_link.c ACPI: remove unused declaration of proc_fs.h 2010-10-15 22:03:36 -04:00
pci_root.c ACPI: Fix boot problem related to APEI with acpi_disabled set 2011-01-16 11:56:26 -08:00
pci_slot.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
power.c ACPI / PM: Check status of power resources under mutexes 2011-01-12 05:05:39 -05:00
power_meter.c power_meter: acpi_device_class "power_meter_resource" too long 2010-05-06 02:38:24 -04:00
proc.c ACPI / PM: Use device wakeup flags for handling ACPI wakeup devices 2011-01-07 01:17:41 -05:00
processor_core.c ACPI, intel_idle: Cleanup idle= internal variables 2011-01-12 12:47:30 -05:00
processor_driver.c Merge branch 'throttling' into release 2011-01-12 05:01:08 -05:00
processor_idle.c Merge branch 'linus' into idle-test 2011-01-12 18:06:06 -05:00
processor_perflib.c ACPI: Fix typos 2010-09-28 21:38:19 -04:00
processor_thermal.c ACPI thermal: remove two unused functions 2010-12-11 02:01:47 -05:00
processor_throttling.c Merge branch 'throttling' into release 2011-01-12 05:01:08 -05:00
reboot.c
sbs.c ACPI: delete CONFIG_ACPI_PROCFS_POWER and power procfs I/F in 2.6.39 2011-01-12 00:36:17 -05:00
sbshc.c sbshc: acpi_device_class "smbus_host_controller" too long 2010-05-06 02:38:25 -04:00
sbshc.h
scan.c ACPI: Drop device flag wake_capable 2011-01-12 05:06:01 -05:00
sleep.c ACPI / PM: Call suspend_nvs_free() earlier during resume 2011-01-20 18:30:17 -08:00
sleep.h ACPI: static sleep_states[] and acpi_gts_bfs_check 2010-10-19 13:44:37 -04:00
sysfs.c ACPICA: Global event handler 2011-01-12 04:27:00 -05:00
tables.c
thermal.c ACPI / Fan: Rework the handling of power resources 2011-01-12 04:48:45 -05:00
utils.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
video.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-01-13 20:15:35 -08:00
video_detect.c ACPI / Video: Probe for output switch method when searching video devices. 2011-02-12 01:40:16 +01:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00