{
int ret = 0;
- spin_lock(&bdi_lock);
+ spin_lock_bh(&bdi_lock);
if (min_ratio > bdi->max_ratio) {
ret = -EINVAL;
} else {
ret = -EINVAL;
}
}
- spin_unlock(&bdi_lock);
+ spin_unlock_bh(&bdi_lock);
return ret;
}
if (max_ratio > 100)
return -EINVAL;
- spin_lock(&bdi_lock);
+ spin_lock_bh(&bdi_lock);
if (bdi->min_ratio > max_ratio) {
ret = -EINVAL;
} else {
bdi->max_ratio = max_ratio;
bdi->max_prop_frac = (PROP_FRAC_BASE * max_ratio) / 100;
}
- spin_unlock(&bdi_lock);
+ spin_unlock_bh(&bdi_lock);
return ret;
}
if ((laptop_mode && pages_written) ||
(!laptop_mode && ((nr_writeback = global_page_state(NR_FILE_DIRTY)
+ global_page_state(NR_UNSTABLE_NFS))
- > background_thresh))) {
- struct writeback_control wbc = {
- .bdi = bdi,
- .sync_mode = WB_SYNC_NONE,
- .nr_to_write = nr_writeback,
- };
-
-
- bdi_start_writeback(&wbc);
- }
+ > background_thresh)))
+ bdi_start_writeback(bdi, nr_writeback);
}
void set_page_dirty_balance(struct page *page, int page_mkwrite)
}
}
+static DEFINE_PER_CPU(unsigned long, bdp_ratelimits) = 0;
+
/**
* balance_dirty_pages_ratelimited_nr - balance dirty memory state
* @mapping: address_space which was dirtied
void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
unsigned long nr_pages_dirtied)
{
- static DEFINE_PER_CPU(unsigned long, ratelimits) = 0;
unsigned long ratelimit;
unsigned long *p;
* tasks in balance_dirty_pages(). Period.
*/
preempt_disable();
- p = &__get_cpu_var(ratelimits);
+ p = &__get_cpu_var(bdp_ratelimits);
*p += nr_pages_dirtied;
if (unlikely(*p >= ratelimit)) {
*p = 0;
if (wbc->nr_to_write <= 0)
return 0;
- wbc->for_writepages = 1;
if (mapping->a_ops->writepages)
ret = mapping->a_ops->writepages(mapping, wbc);
else
ret = generic_writepages(mapping, wbc);
- wbc->for_writepages = 0;
return ret;
}