lkml.org 
[lkml]   [2006]   [Jan]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[ 11/23] [Suspend2] Modify freezeable for freezing kernel threads separately.
Date

Modify freezeable so that it takes an extra argument indicating
whether we are interested in all threads, or just userspace ones,
and ignores threads that are already in the refrigerator.

Signed-off-by: Nigel Cunningham <nigel@suspend2.net>

kernel/power/process.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/kernel/power/process.c b/kernel/power/process.c
index 0e377ed..444a163 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -98,14 +98,24 @@ int freezer_make_fses_ro(void)
return 0;
}

-static inline int freezeable(struct task_struct * p)
+/*
+ * freezeable
+ *
+ * Description: Determine whether a process should be frozen yet.
+ * Parameters: struct task_struct * The process to consider.
+ * int Boolean - 0 = userspace else all.
+ * Returns: int 0 if don't freeze yet, otherwise do.
+ */
+static int freezeable(struct task_struct * p, int all_freezable)
{
if ((p == current) ||
+ (p->flags & PF_FROZEN) ||
(p->flags & PF_NOFREEZE) ||
(p->exit_state == EXIT_ZOMBIE) ||
(p->exit_state == EXIT_DEAD) ||
(p->state == TASK_STOPPED) ||
- (p->state == TASK_TRACED))
+ (p->state == TASK_TRACED) ||
+ (!p->mm && !all_freezable))
return 0;
return 1;
}
--
Nigel Cunningham nigel at suspend2 dot net
-
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: 2006-01-26 05:00    [W:0.152 / U:0.652 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site