[JFFS2] Switch to using an array of jffs2_raw_node_refs instead of a list.
This allows us to drop another pointer from the struct jffs2_raw_node_ref,
shrinking it to 8 bytes on 32-bit machines (if the TEST_TOTLEN) paranoia
check is turned off, which will be committed soon).
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 73a06d0..71d1630 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -458,14 +458,13 @@
void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref)
{
struct jffs2_eraseblock *jeb;
- struct jffs2_raw_node_ref *next_ref;
int blocknr;
struct jffs2_unknown_node n;
int ret, addedsize;
size_t retlen;
uint32_t freed_len;
- if(!ref) {
+ if(unlikely(!ref)) {
printk(KERN_NOTICE "EEEEEK. jffs2_mark_node_obsolete called with NULL node\n");
return;
}
@@ -683,54 +682,6 @@
spin_unlock(&c->erase_completion_lock);
}
-
- /* Merge with the next node in the physical list, if there is one
- and if it's also obsolete and if it doesn't belong to any inode */
- next_ref = ref_next(ref);
-
- if (next_ref && ref_obsolete(next_ref) && !next_ref->next_in_ino) {
- spin_lock(&c->erase_completion_lock);
-
-#ifdef TEST_TOTLEN
- ref->__totlen += next_ref->__totlen;
-#endif
- ref->next_phys = ref_next(next_ref);
- if (jeb->last_node == next_ref) jeb->last_node = ref;
- if (jeb->gc_node == next_ref) {
- /* gc will be happy continuing gc on this node */
- jeb->gc_node=ref;
- }
- spin_unlock(&c->erase_completion_lock);
-
- __jffs2_free_raw_node_ref(next_ref);
- }
-
- /* Also merge with the previous node in the list, if there is one
- and that one is obsolete */
- if (ref != jeb->first_node ) {
- struct jffs2_raw_node_ref *p = jeb->first_node;
-
- spin_lock(&c->erase_completion_lock);
-
- while ((next_ref = ref_next(ref)) != ref)
- p = next_ref;
-
- if (ref_obsolete(p) && !ref->next_in_ino) {
-#ifdef TEST_TOTLEN
- p->__totlen += ref->__totlen;
-#endif
- if (jeb->last_node == ref) {
- jeb->last_node = p;
- }
- if (jeb->gc_node == ref) {
- /* gc will be happy continuing gc on this node */
- jeb->gc_node=p;
- }
- p->next_phys = ref_next(ref);
- __jffs2_free_raw_node_ref(ref);
- }
- spin_unlock(&c->erase_completion_lock);
- }
out_erase_sem:
up(&c->erase_free_sem);
}