[PATCH 9/12] ia64: make pfm_get_task work with virtual pids

From: Pavel Emelyanov
Date: Tue Jan 29 2008 - 09:02:38 EST


This pid comes from user space, so treat it accordingly.

Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>

---
arch/ia64/kernel/perfmon.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 73e7c2e..da1cff0 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2654,11 +2654,11 @@ pfm_get_task(pfm_context_t *ctx, pid_t pid, struct task_struct **task)
/* XXX: need to add more checks here */
if (pid < 2) return -EPERM;

- if (pid != current->pid) {
+ if (pid != task_pid_vnr(current)) {

read_lock(&tasklist_lock);

- p = find_task_by_pid(pid);
+ p = find_task_by_vpid(pid);

/* make sure task cannot go away while we operate on it */
if (p) get_task_struct(p);
--
1.5.3.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/