The patch titled
OProfile: enable SPU switch notification to detect currently active SPU tasks (update)
has been removed from the -mm tree. Its filename was
oprofile-enable-spu-switch-notification-to-detect-currently-active-spu-tasks-update.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: OProfile: enable SPU switch notification to detect currently active SPU tasks (update)
From: Maynard Johnson <mpjohn@xxxxxxxxxx>
Changed "for (node = 0; node < MAX_NUMNODES; node++)" loop to
for_each_online_node(node).
Added comment to memory barrier.
Better info in changelog.
Cc: Carl Love <carll@xxxxxxxxxx>
Cc: Bob Nelson <rrnelson@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd.bergmann@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/platforms/cell/spufs/sched.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff -puN arch/powerpc/platforms/cell/spufs/sched.c~oprofile-enable-spu-switch-notification-to-detect-currently-active-spu-tasks-update arch/powerpc/platforms/cell/spufs/sched.c
--- a/arch/powerpc/platforms/cell/spufs/sched.c~oprofile-enable-spu-switch-notification-to-detect-currently-active-spu-tasks-update
+++ a/arch/powerpc/platforms/cell/spufs/sched.c
@@ -220,13 +220,14 @@ static void notify_spus_active(void)
* When the awakened processes see their "notify_active" flag is set,
* they will call spu_switch_notify();
*/
- for (node = 0; node < MAX_NUMNODES; node++) {
+ for_each_online_node(node) {
struct spu *spu;
mutex_lock(&spu_prio->active_mutex[node]);
list_for_each_entry(spu, &spu_prio->active_list[node], list) {
struct spu_context *ctx = spu->ctx;
set_bit(SPU_SCHED_NOTIFY_ACTIVE, &ctx->sched_flags);
- mb();
+ mb(); /* make sure any tasks woken up below */
+ /* can see the bit(s) set above */
wake_up_all(&ctx->stop_wq);
}
mutex_unlock(&spu_prio->active_mutex[node]);
_
Patches currently in -mm which might be from mpjohn@xxxxxxxxxx are
origin.patch
-
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