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0b17ba7258
linux/arch/powerpc/platforms/pseries
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Anton Blanchard 0b17ba7258 powerpc: check_and_cede_processor() never cedes 
Commit f948501b36 ("Make hard_irq_disable() actually hard-disable
interrupts") caused check_and_cede_processor to stop working.
->irq_happened will never be zero right after a hard_irq_disable
so the compiler removes the call to cede_processor completely.

The bug was introduced back in the lazy interrupt handling rework
of 3.4 but was hidden until recently because hard_irq_disable did
nothing.

This issue will eventually appear in 3.4 stable since the
hard_irq_disable fix is marked stable, so mark this one for stable
too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-06-29 14:35:37 +10:00
..
cmm.c power: cmm - convert sysdev_class to a regular subsystem 2011-12-21 15:09:51 -08:00
dlpar.c powerpc/pseries: Avoid spurious error during hotplug CPU add 2011-09-20 09:20:00 +10:00
dtl.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
eeh_cache.c powerpc/eeh: Replace pci_dn with eeh_dev for EEH address cache 2012-03-09 11:39:42 +11:00
eeh_dev.c powerpc/eeh: Remove eeh device from OF node 2012-03-28 11:31:57 +11:00
eeh_driver.c powerpc/eeh: Replace pci_dn with eeh_dev for EEH aux components 2012-03-09 11:39:46 +11:00
eeh_event.c powerpc/eeh: Fix use of set_current_state() in eeh event handling set_current_state() wart 2012-04-02 14:31:19 +10:00
eeh_pseries.c powerpc/eeh: pseries platform config space access in EEH 2012-03-09 11:39:51 +11:00
eeh_sysfs.c powerpc/eeh: Replace pci_dn with eeh_dev for EEH sysfs 2012-03-09 11:39:40 +11:00
eeh.c powerpc: Use WARN instead of dump_stack when printing EEH error backtrace 2012-04-30 15:37:27 +10:00
event_sources.c powerpc/pseries: Add WARN_ON() to request_event_sources_irqs() on irq allocation/request failure 2010-07-09 11:28:32 +10:00
firmware.c powerpc: Add VPHN firmware feature 2010-11-29 15:48:22 +11:00
hotplug-cpu.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
hotplug-memory.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
hvCall_inst.c powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit 2012-01-03 12:09:27 +11:00
hvCall.S powerpc: Fix unpaired __trace_hcall_entry and __trace_hcall_exit 2012-01-11 12:50:26 +11:00
hvconsole.c powerpc: convert hvconsole.c to export.h ; fix implicit use of errno.h 2011-10-31 19:30:43 -04:00
hvcserver.c
io_event_irq.c powerpc: Make function that parses RTAS error logs global 2012-03-28 11:31:58 +11:00
iommu.c powerpc/eeh: Remove eeh information from pci_dn 2012-03-28 11:31:57 +11:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
kexec.c powerpc/pseries: Simplify vpa deregistration functions 2011-08-05 14:47:58 +10:00
lpar.c powerpc: Remove FW_FEATURE ISERIES from arch code 2012-03-21 11:16:11 +11:00
Makefile powerpc/eeh: Introduce EEH device 2012-03-09 11:39:29 +11:00
mobility.c powerpc: Fix up implicit stat.h users 2011-10-31 19:30:39 -04:00
msi.c powerpc/eeh: Cleanup function names in the EEH core 2012-03-09 11:08:37 +11:00
nvram.c kmsg - kmsg_dump() use iterator to receive log buffer content 2012-06-15 14:53:59 -07:00
offline_states.h powerpc/smp: soft-replugged CPUs must go back to start_secondary 2011-04-01 15:37:09 +11:00
pci_dlpar.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-03-23 14:02:12 -07:00
pci.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
plpar_wrappers.h powerpc: Clean up lppaca->cede_latency_hint 2012-04-30 15:37:15 +10:00
power.c [POWERPC] Fix warning in pseries/power.c 2008-02-20 13:33:37 +11:00
processor_idle.c powerpc: check_and_cede_processor() never cedes 2012-06-29 14:35:37 +10:00
pseries_energy.c cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystem 2011-12-21 14:29:42 -08:00
pseries.h powerpc/cpuidle: cpuidle driver for pSeries 2011-12-08 13:56:31 +11:00
ras.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
reconfig.c powerpc/pseries: Add pseries update notifier for OFDT prop changes 2012-05-14 10:49:06 +10:00
scanlog.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
setup.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci 2012-03-23 14:02:12 -07:00
smp.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
suspend.c powerpc/pseries: Fix partition migration hang in stop_topology_update 2012-02-14 15:01:39 +11:00