The patch titled
stopmachine: semaphore to mutex
has been removed from the -mm tree. Its filename was
stopmachine-semaphore-to-mutex.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: stopmachine: semaphore to mutex
From: Daniel Walker <dwalker@xxxxxxxxxx>
[akpm@xxxxxxxxxxxxxxxxxxxx: cleanup]
Signed-off-by: Daniel Walker <dwalker@xxxxxxxxxx>
Acked-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/stop_machine.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN kernel/stop_machine.c~stopmachine-semaphore-to-mutex kernel/stop_machine.c
--- a/kernel/stop_machine.c~stopmachine-semaphore-to-mutex
+++ a/kernel/stop_machine.c
@@ -29,7 +29,6 @@ enum stopmachine_state {
static enum stopmachine_state stopmachine_state;
static unsigned int stopmachine_num_threads;
static atomic_t stopmachine_thread_ack;
-static DECLARE_MUTEX(stopmachine_mutex);
static int stopmachine(void *cpu)
{
@@ -170,6 +169,7 @@ static int do_stop(void *_smdata)
struct task_struct *__stop_machine_run(int (*fn)(void *), void *data,
unsigned int cpu)
{
+ static DEFINE_MUTEX(stopmachine_mutex);
struct stop_machine_data smdata;
struct task_struct *p;
@@ -177,7 +177,7 @@ struct task_struct *__stop_machine_run(i
smdata.data = data;
init_completion(&smdata.done);
- down(&stopmachine_mutex);
+ mutex_lock(&stopmachine_mutex);
/* If they don't care which CPU fn runs on, bind to any online one. */
if (cpu == NR_CPUS)
@@ -193,7 +193,7 @@ struct task_struct *__stop_machine_run(i
wake_up_process(p);
wait_for_completion(&smdata.done);
}
- up(&stopmachine_mutex);
+ mutex_unlock(&stopmachine_mutex);
return p;
}
_
Patches currently in -mm which might be from dwalker@xxxxxxxxxx are
origin.patch
driver-base-memory-semaphore-to-mutex.patch
usb-microtek-remove-unused-semaphore.patch
usb-libusual-locking-cleanup.patch
profile-likely-unlikely-macros.patch
profile-likely-unlikely-macros-fix.patch
-
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