lkml.org 
[lkml]   [2007]   [May]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 7/7] Freezer: Move frozen_process to kernel/power/process.c
Date
From: Gautham R Shenoy <ego@in.ibm.com>

Other than refrigerator, no one else calls frozen_process(). So move it
from include/linux/freezer.h to kernel/power/process.c.

Also, since a task can be marked as frozen by itself, we don't need to pass
the (struct task_struct *p) parameter to frozen_process().

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
include/linux/freezer.h | 13 -------------
kernel/power/process.c | 14 +++++++++++++-
2 files changed, 13 insertions(+), 14 deletions(-)
Index: linux-2.6/include/linux/freezer.h
===================================================================
--- linux-2.6.orig/include/linux/freezer.h 2007-05-10 21:44:47.000000000 +0200
+++ linux-2.6/include/linux/freezer.h 2007-05-10 21:44:50.000000000 +0200
@@ -58,18 +58,6 @@ static inline int thaw_process(struct ta
return 0;
}

-/*
- * freezing is complete, mark process as frozen
- */
-static inline void frozen_process(struct task_struct *p)
-{
- if (!unlikely(p->flags & PF_NOFREEZE)) {
- p->flags |= PF_FROZEN;
- wmb();
- }
- clear_tsk_thread_flag(p, TIF_FREEZE);
-}
-
extern void refrigerator(void);
extern int freeze_processes(void);
extern void thaw_processes(void);
@@ -132,7 +120,6 @@ static inline int frozen(struct task_str
static inline int freezing(struct task_struct *p) { return 0; }
static inline void freeze(struct task_struct *p) { BUG(); }
static inline int thaw_process(struct task_struct *p) { return 1; }
-static inline void frozen_process(struct task_struct *p) { BUG(); }

static inline void refrigerator(void) {}
static inline int freeze_processes(void) { BUG(); return 0; }
Index: linux-2.6/kernel/power/process.c
===================================================================
--- linux-2.6.orig/kernel/power/process.c 2007-05-10 21:44:40.000000000 +0200
+++ linux-2.6/kernel/power/process.c 2007-05-10 21:44:50.000000000 +0200
@@ -32,6 +32,18 @@ static inline int freezeable(struct task
return 1;
}

+/*
+ * freezing is complete, mark current process as frozen
+ */
+static inline void frozen_process(void)
+{
+ if (!unlikely(current->flags & PF_NOFREEZE)) {
+ current->flags |= PF_FROZEN;
+ wmb();
+ }
+ clear_tsk_thread_flag(current, TIF_FREEZE);
+}
+
/* Refrigerator is place where frozen processes are stored :-). */
void refrigerator(void)
{
@@ -41,7 +53,7 @@ void refrigerator(void)

task_lock(current);
if (freezing(current)) {
- frozen_process(current);
+ frozen_process();
task_unlock(current);
} else {
task_unlock(current);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-05-11 11:11    [W:0.135 / U:0.276 seconds]
©2003-2011 Jasper Spaans. Advertise on this site