The patch titled
stopmachine: semaphore to mutex
has been added to the -mm tree. Its filename is
stopmachine-semaphore-to-mutex.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: stopmachine: semaphore to mutex
From: Daniel Walker <dwalker@xxxxxxxxxx>
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 +29,7 @@ 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 DEFINE_MUTEX(stopmachine_mutex);
static int stopmachine(void *cpu)
{
@@ -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
media-video-usbvision-add-mutex_unlock-to-error-paths.patch
media-video-usbvision-add-mutex_unlock-to-error-paths-fix.patch
media-video-usbvision-remove-ctrlurblock.patch
usb-testing-driver-dont-free-a-locked-mutex.patch
mcheck-mce_64-mce_read_sem-to-mutex.patch
drivers-char-tty_ioc-remove-pty_sem.patch
drivers-isdn-i4l-isdn_ttyc-remove-write_sem.patch
unix98-allocated_ptys_lock-semaphore-to-mutex.patch
docs-kernel-locking-convert-semaphore-references.patch
stopmachine-semaphore-to-mutex.patch
isapnp-driver-semaphore-to-mutex.patch
isapnp-driver-semaphore-to-mutex-fix.patch
isapnp-driver-semaphore-to-mutex-fix-fix.patch
profile-likely-unlikely-macros.patch
profile-likely-unlikely-macros-fix.patch
-
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