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Anton Blanchard 57cdfdf829 powerpc: Fix hcall tracepoint recursion 
Spinlocks on shared processor partitions use H_YIELD to notify the
hypervisor we are waiting on another virtual CPU. Unfortunately this means
the hcall tracepoints can recurse.

The patch below adds a percpu depth and checks it on both the entry and
exit hcall tracepoints.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: stable@kernel.org
 		2011-02-07 13:06:08 +11:00
..
Kconfig kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
Makefile powerpc: Add support for new hcall H_BEST_ENERGY 2010-11-29 15:48:19 +11:00
cmm.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
dlpar.c powerpc/pseries: Use kmemdup 2010-10-13 16:19:22 +11:00
dtl.c powerpc/pseries: Re-enable dispatch trace log userspace interface 2010-09-02 14:07:32 +10:00
eeh.c powerpc/pseries: Don't override CONFIG_PPC_PSERIES_DEBUG 2010-11-18 14:54:22 +11:00
eeh_cache.c powerpc/pseries/eeh: Use for_each_pci_dev() 2010-07-09 11:28:25 +10:00
eeh_driver.c powerpc/eeh: Fix a bug when pci structure is null 2010-02-17 14:02:47 +11:00
eeh_event.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
eeh_sysfs.c headers: kobject.h redux 2011-01-10 08:51:44 -08:00
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 powerpc/pseries: Increase cpu die timeout 2010-07-31 15:04:15 +10:00
hotplug-memory.c powerpc: Fix erroneous lmb->memblock conversions 2010-07-23 12:56:57 +10:00
hvCall.S powerpc: Remove second definition of STACK_FRAME_OVERHEAD 2010-11-29 15:48:23 +11:00
hvCall_inst.c powerpc: remove cast from void* 2010-11-03 10:23:26 -04:00
hvconsole.c [POWERPC] clean up pseries hcall interfaces 2006-08-01 16:19:15 +10:00
hvcserver.c [PATCH] powerpc/pseries: Change H_StudlyCaps to H_SHOUTING_CAPS 2006-04-01 22:36:57 +11:00
iommu.c powerpc/pseries: Pass phb only to iommu_table_setparms_lpar 2010-12-09 15:24:01 +11:00
kexec.c powerpc/kexec: Don't initialise kexec hooks to default handlers 2011-01-21 14:08:35 +11:00
lpar.c powerpc: Fix hcall tracepoint recursion 2011-02-07 13:06:08 +11:00
mobility.c powerpc/pseries: Partition migration in the kernel 2010-10-13 16:19:03 +11:00
msi.c powerpc/pci: Fix regression in powerpc MSI-X 2009-11-05 17:06:27 +11:00
nvram.c powerpc/nvram: Rename ppc64,linux partition to ibm,rtas-log 2010-11-30 15:38:50 +11:00
offline_states.h powerpc: Reset kernel stack on cpu online from cede state 2010-03-09 11:57:10 +11:00
pci.c [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
pci_dlpar.c powerpc/pseries: Don't override CONFIG_PPC_PSERIES_DEBUG 2010-11-18 14:54:22 +11:00
phyp_dump.c lmb: rename to memblock 2010-07-14 17:14:00 +10:00
plpar_wrappers.h powerpc/pseries: Add hcall to read 4 ptes at a time in real mode 2010-05-21 17:31:10 +10:00
power.c [POWERPC] Fix warning in pseries/power.c 2008-02-20 13:33:37 +11:00
pseries.h powerpc/pseries: Export device tree updating routines 2010-10-13 16:19:02 +11:00
pseries_energy.c powerpc: Add support for new hcall H_BEST_ENERGY 2010-11-29 15:48:19 +11:00
ras.c powerpc: Fix corruption when grabbing FWNMI data 2011-01-21 14:08:38 +11:00
reconfig.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
scanlog.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
setup.c powerpc: Account time using timebase rather than PURR 2010-09-02 14:07:31 +10:00
smp.c powerpc: Correct smt_enabled=X boot option for > 2 threads per core 2010-08-24 15:26:30 +10:00
suspend.c suspend: constify platform_suspend_ops 2010-11-16 14:14:02 +01:00
xics.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-10-21 21:19:54 -07:00
xics.h powerpc/xics: Consolidate ipi message encode and decode 2008-10-13 16:24:16 +11:00