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yaml
---
r: 165455
b: refs/heads/master
c: 91e0955
h: refs/heads/master
i:
  165453: 704286b
  165451: 1e00a2a
  165447: d1e0a3d
  165439: 1adebca
v: v3
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Gerard Lledo authored and David Woodhouse committed Sep 4, 2009
1 parent 52827ee commit a3b6d1b
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Showing 2 changed files with 14 additions and 8 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2c78c44362bc9b7c715a3c2119b89a407c1cb739
refs/heads/master: 91e0955b57377578f7555b5d0f2a21040691004b
20 changes: 13 additions & 7 deletions trunk/fs/jffs2/background.c
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
#include <linux/completion.h>
#include <linux/sched.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include "nodelist.h"


Expand All @@ -31,23 +32,24 @@ void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
/* This must only ever be called when no GC thread is currently running */
int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
{
pid_t pid;
struct task_struct *tsk;
int ret = 0;

BUG_ON(c->gc_task);

init_completion(&c->gc_thread_start);
init_completion(&c->gc_thread_exit);

pid = kernel_thread(jffs2_garbage_collect_thread, c, CLONE_FS|CLONE_FILES);
if (pid < 0) {
printk(KERN_WARNING "fork failed for JFFS2 garbage collect thread: %d\n", -pid);
tsk = kthread_run(jffs2_garbage_collect_thread, c, "jffs2_gcd_mtd%d", c->mtd->index);
if (IS_ERR(tsk)) {
printk(KERN_WARNING "fork failed for JFFS2 garbage collect thread: %ld\n", -PTR_ERR(tsk));
complete(&c->gc_thread_exit);
ret = pid;
ret = PTR_ERR(tsk);
} else {
/* Wait for it... */
D1(printk(KERN_DEBUG "JFFS2: Garbage collect thread is pid %d\n", pid));
D1(printk(KERN_DEBUG "JFFS2: Garbage collect thread is pid %d\n", tsk->pid));
wait_for_completion(&c->gc_thread_start);
ret = tsk->pid;
}

return ret;
Expand All @@ -71,7 +73,6 @@ static int jffs2_garbage_collect_thread(void *_c)
{
struct jffs2_sb_info *c = _c;

daemonize("jffs2_gcd_mtd%d", c->mtd->index);
allow_signal(SIGKILL);
allow_signal(SIGSTOP);
allow_signal(SIGCONT);
Expand Down Expand Up @@ -107,6 +108,11 @@ static int jffs2_garbage_collect_thread(void *_c)
* the GC thread get there first. */
schedule_timeout_interruptible(msecs_to_jiffies(50));

if (kthread_should_stop()) {
D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread(): kthread_stop() called.\n"));
goto die;
}

/* Put_super will send a SIGKILL and then wait on the sem.
*/
while (signal_pending(current) || freezing(current)) {
Expand Down

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