[IA64] fix perfmon context load

[safe/jmp/linux-2.6] / arch / ia64 / kernel / perfmon.c

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 0e58ec7..f1201ac 100644 (file)
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -37,7 +37,6 @@
 #include <linux/vfs.h>
 #include <linux/pagemap.h>
 #include <linux/mount.h>
-#include <linux/version.h>
 #include <linux/bitops.h>
 
 #include <asm/errno.h>
@@ -609,7 +608,7 @@ DEFINE_PER_CPU(unsigned long, pfm_syst_info);
 DEFINE_PER_CPU(struct task_struct *, pmu_owner);
 DEFINE_PER_CPU(pfm_context_t  *, pmu_ctx);
 DEFINE_PER_CPU(unsigned long, pmu_activation_number);
-EXPORT_SYMBOL_GPL(per_cpu__pfm_syst_info);
+EXPORT_PER_CPU_SYMBOL_GPL(pfm_syst_info);
 
 
 /* forward declaration */
@@ -4313,6 +4312,7 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
        DPRINT(("before cmpxchg() old_ctx=%p new_ctx=%p\n",
                thread->pfm_context, ctx));
 
+       ret = -EBUSY;
        old = ia64_cmpxchg(acq, &thread->pfm_context, NULL, ctx, sizeof(pfm_context_t *));
        if (old != NULL) {
                DPRINT(("load_pid [%d] already has a context\n", req->load_pid));