The patch titled
schedule_on_each_cpu(): use preempt_disable()
has been removed from the -mm tree. Its filename was
schedule_on_each_cpu-use-preempt_disable.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: schedule_on_each_cpu(): use preempt_disable()
From: Andrew Morton <akpm@xxxxxxxx>
We take workqueue_mutex in there to keep CPU hotplug away. But
preempt_disable() will suffice for that.
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/workqueue.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN kernel/workqueue.c~schedule_on_each_cpu-use-preempt_disable kernel/workqueue.c
--- a/kernel/workqueue.c~schedule_on_each_cpu-use-preempt_disable
+++ a/kernel/workqueue.c
@@ -638,7 +638,7 @@ int schedule_on_each_cpu(work_func_t fun
if (!works)
return -ENOMEM;
- mutex_lock(&workqueue_mutex);
+ preempt_disable(); /* CPU hotplug */
for_each_online_cpu(cpu) {
struct work_struct *work = per_cpu_ptr(works, cpu);
@@ -646,7 +646,7 @@ int schedule_on_each_cpu(work_func_t fun
set_bit(WORK_STRUCT_PENDING, work_data_bits(work));
__queue_work(per_cpu_ptr(keventd_wq->cpu_wq, cpu), work);
}
- mutex_unlock(&workqueue_mutex);
+ preempt_enable();
flush_workqueue(keventd_wq);
free_percpu(works);
return 0;
_
Patches currently in -mm which might be from akpm@xxxxxxxx are
origin.patch
git-ieee1394.patch
update-smc91x-driver-with-arm-versatile-board-info.patch
drivers-net-ns83820c-add-paramter-to-disable-auto.patch
git-ioat-vs-git-md-accel.patch
ioat-warning-fix.patch
scsi-cover-up-bugs-fix-up-compiler-warnings-in-megaraid-driver.patch
git-ipwireless_cs.patch
lumpy-reclaim-v4.patch
deprecate-smbfs-in-favour-of-cifs.patch
sync_sb_inodes-propagate-errors.patch
move-page-writeback-acounting-out-of-macros.patch
ext2-reservations.patch
mm-implement-swap-prefetching.patch
make-copy_from_user_inatomic-not-zero-the-tail-on-i386-vs-reiser4.patch
reiser4.patch
nr_blockdev_pages-in_interrupt-warning.patch
device-suspend-debug.patch
slab-leaks3-default-y.patch
vdso-print-fatal-signals-use-ctl_unnumbered.patch
restore-rogue-readahead-printk.patch
put_bh-debug.patch
acpi_format_exception-debug.patch
kmap_atomic-debugging.patch
shrink_slab-handle-bad-shrinkers.patch
squash-ipc-warnings.patch
-
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