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path: root/fs/jffs2/nodemgmt.c
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Diffstat (limited to 'fs/jffs2/nodemgmt.c')
-rw-r--r--fs/jffs2/nodemgmt.c28
1 files changed, 23 insertions, 5 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 191359dde4e..694aa5b0350 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -116,9 +116,21 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
ret = jffs2_garbage_collect_pass(c);
- if (ret == -EAGAIN)
- jffs2_erase_pending_blocks(c, 1);
- else if (ret)
+ if (ret == -EAGAIN) {
+ spin_lock(&c->erase_completion_lock);
+ if (c->nr_erasing_blocks &&
+ list_empty(&c->erase_pending_list) &&
+ list_empty(&c->erase_complete_list)) {
+ DECLARE_WAITQUEUE(wait, current);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&c->erase_wait, &wait);
+ D1(printk(KERN_DEBUG "%s waiting for erase to complete\n", __func__));
+ spin_unlock(&c->erase_completion_lock);
+
+ schedule();
+ } else
+ spin_unlock(&c->erase_completion_lock);
+ } else if (ret)
return ret;
cond_resched();
@@ -217,7 +229,7 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
ejeb = list_entry(c->erasable_list.next, struct jffs2_eraseblock, list);
list_move_tail(&ejeb->list, &c->erase_pending_list);
c->nr_erasing_blocks++;
- jffs2_erase_pending_trigger(c);
+ jffs2_garbage_collect_trigger(c);
D1(printk(KERN_DEBUG "jffs2_find_nextblock: Triggering erase of erasable block at 0x%08x\n",
ejeb->offset));
}
@@ -469,7 +481,9 @@ struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
void jffs2_complete_reservation(struct jffs2_sb_info *c)
{
D1(printk(KERN_DEBUG "jffs2_complete_reservation()\n"));
+ spin_lock(&c->erase_completion_lock);
jffs2_garbage_collect_trigger(c);
+ spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->alloc_sem);
}
@@ -611,7 +625,7 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
list_add_tail(&jeb->list, &c->erase_pending_list);
c->nr_erasing_blocks++;
- jffs2_erase_pending_trigger(c);
+ jffs2_garbage_collect_trigger(c);
} else {
/* Sometimes, however, we leave it elsewhere so it doesn't get
immediately reused, and we spread the load a bit. */
@@ -732,6 +746,10 @@ int jffs2_thread_should_wake(struct jffs2_sb_info *c)
int nr_very_dirty = 0;
struct jffs2_eraseblock *jeb;
+ if (!list_empty(&c->erase_complete_list) ||
+ !list_empty(&c->erase_pending_list))
+ return 1;
+
if (c->unchecked_size) {
D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): unchecked_size %d, checked_ino #%d\n",
c->unchecked_size, c->checked_ino));