diff options
Diffstat (limited to 'mm/pdflush.c')
| -rw-r--r-- | mm/pdflush.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/mm/pdflush.c b/mm/pdflush.c index c4b6d0a..b02102f 100644 --- a/mm/pdflush.c +++ b/mm/pdflush.c @@ -104,21 +104,20 @@ static int __pdflush(struct pdflush_work *my_work) list_move(&my_work->list, &pdflush_list); my_work->when_i_went_to_sleep = jiffies; spin_unlock_irq(&pdflush_lock); - schedule(); - if (try_to_freeze()) { - spin_lock_irq(&pdflush_lock); - continue; - } - + try_to_freeze(); spin_lock_irq(&pdflush_lock); if (!list_empty(&my_work->list)) { - printk("pdflush: bogus wakeup!\n"); + /* + * Someone woke us up, but without removing our control + * structure from the global list. swsusp will do this + * in try_to_freeze()->refrigerator(). Handle it. + */ my_work->fn = NULL; continue; } if (my_work->fn == NULL) { - printk("pdflush: NULL work function\n"); + printk("pdflush: bogus wakeup\n"); continue; } spin_unlock_irq(&pdflush_lock); @@ -202,8 +201,7 @@ int pdflush_operation(void (*fn)(unsigned long), unsigned long arg0) unsigned long flags; int ret = 0; - if (fn == NULL) - BUG(); /* Hard to diagnose if it's deferred */ + BUG_ON(fn == NULL); /* Hard to diagnose if it's deferred */ spin_lock_irqsave(&pdflush_lock, flags); if (list_empty(&pdflush_list)) { |
