[IA64] perfmon: make pfm_sysctl a global, and other cleanup
- make pfm_sysctl a global such that it is possible
to enable/disable debug printk in sampling formats
using PFM_DEBUG.
- remove unused pfm_debug_var variable
- fix a bug in pfm_handle_work where an BUG_ON() could
be triggered. There is a path where pfm_handle_work()
can be called with interrupts enabled, i.e., when
TIF_NEED_RESCHED is set. The fix correct the masking
and unmasking of interrupts in pfm_handle_work() such
that we restore the interrupt mask as it was upon entry.
signed-off-by: stephane eranian <eranian@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/include/asm-ia64/perfmon.h b/include/asm-ia64/perfmon.h
index 136c60e..ed5416c 100644
--- a/include/asm-ia64/perfmon.h
+++ b/include/asm-ia64/perfmon.h
@@ -254,6 +254,18 @@
#define PFM_CPUINFO_DCR_PP 0x2 /* if set the system wide session has started */
#define PFM_CPUINFO_EXCL_IDLE 0x4 /* the system wide session excludes the idle task */
+/*
+ * sysctl control structure. visible to sampling formats
+ */
+typedef struct {
+ int debug; /* turn on/off debugging via syslog */
+ int debug_ovfl; /* turn on/off debug printk in overflow handler */
+ int fastctxsw; /* turn on/off fast (unsecure) ctxsw */
+ int expert_mode; /* turn on/off value checking */
+} pfm_sysctl_t;
+extern pfm_sysctl_t pfm_sysctl;
+
+
#endif /* __KERNEL__ */
#endif /* _ASM_IA64_PERFMON_H */