*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: erase.c,v 1.80 2005/07/14 19:46:24 joern Exp $
+ * $Id: erase.c,v 1.85 2005/09/20 14:53:15 dedekind Exp $
*
*/
struct jffs2_eraseblock *jeb;
struct jffs2_sb_info *c;
};
-
+
#ifndef __ECOS
static void jffs2_erase_callback(struct erase_info *);
#endif
static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset);
static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
-static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
static void jffs2_erase_block(struct jffs2_sb_info *c,
#else /* Linux */
struct erase_info *instr;
- D1(printk(KERN_DEBUG "jffs2_erase_block(): erase block %#x (range %#x-%#x)\n", jeb->offset, jeb->offset, jeb->offset + c->sector_size));
+ D1(printk(KERN_DEBUG "jffs2_erase_block(): erase block %#08x (range %#08x-%#08x)\n",
+ jeb->offset, jeb->offset, jeb->offset + c->sector_size));
instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL);
if (!instr) {
printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n");
instr->callback = jffs2_erase_callback;
instr->priv = (unsigned long)(&instr[1]);
instr->fail_addr = 0xffffffff;
-
+
((struct erase_priv_struct *)instr->priv)->jeb = jeb;
((struct erase_priv_struct *)instr->priv)->c = c;
return;
}
- if (ret == -EROFS)
+ if (ret == -EROFS)
printk(KERN_WARNING "Erase at 0x%08x failed immediately: -EROFS. Is the sector locked?\n", jeb->offset);
else
printk(KERN_WARNING "Erase at 0x%08x failed immediately: errno %d\n", jeb->offset, ret);
c->used_size -= jeb->used_size;
c->dirty_size -= jeb->dirty_size;
jeb->wasted_size = jeb->used_size = jeb->dirty_size = jeb->free_size = 0;
- jffs2_free_all_node_refs(c, jeb);
+ jffs2_free_jeb_node_refs(c, jeb);
list_add(&jeb->list, &c->erasing_list);
spin_unlock(&c->erase_completion_lock);
c->nr_erasing_blocks--;
spin_unlock(&c->erase_completion_lock);
wake_up(&c->erase_wait);
-}
+}
#ifndef __ECOS
static void jffs2_erase_callback(struct erase_info *instr)
jffs2_erase_failed(priv->c, priv->jeb, instr->fail_addr);
} else {
jffs2_erase_succeeded(priv->c, priv->jeb);
- }
+ }
kfree(instr);
}
#endif /* !__ECOS */
/* Walk the inode's list once, removing any nodes from this eraseblock */
while (1) {
if (!(*prev)->next_in_ino) {
- /* We're looking at the jffs2_inode_cache, which is
+ /* We're looking at the jffs2_inode_cache, which is
at the end of the linked list. Stash it and continue
from the beginning of the list */
ic = (struct jffs2_inode_cache *)(*prev);
+ BUG_ON(ic->class != RAWNODE_CLASS_INODE_CACHE);
prev = &ic->nodes;
continue;
- }
+ }
if (SECTOR_ADDR((*prev)->flash_offset) == jeb->offset) {
/* It's in the block we're erasing */
printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n" KERN_DEBUG);
this = ic->nodes;
-
+
while(this) {
printk( "0x%08x(%d)->", ref_offset(this), ref_flags(this));
if (++i == 5) {
jffs2_del_ino_cache(c, ic);
}
-static void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
+void jffs2_free_jeb_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
{
- struct jffs2_raw_node_ref *ref;
+ struct jffs2_raw_node_ref *block, *ref;
D1(printk(KERN_DEBUG "Freeing all node refs for eraseblock offset 0x%08x\n", jeb->offset));
- while(jeb->first_node) {
- ref = jeb->first_node;
- jeb->first_node = ref->next_phys;
-
- /* Remove from the inode-list */
- if (ref->next_in_ino)
+
+ block = ref = jeb->first_node;
+
+ while (ref) {
+ if (ref->flash_offset == REF_LINK_NODE) {
+ ref = ref->next_in_ino;
+ jffs2_free_refblock(block);
+ block = ref;
+ continue;
+ }
+ if (ref->flash_offset != REF_EMPTY_NODE && ref->next_in_ino)
jffs2_remove_node_refs_from_ino_list(c, ref, jeb);
/* else it was a non-inode node or already removed, so don't bother */
- jffs2_free_raw_node_ref(ref);
+ ref++;
}
- jeb->last_node = NULL;
+ jeb->first_node = jeb->last_node = NULL;
}
static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t *bad_offset)
uint32_t ofs;
size_t retlen;
int ret = -EIO;
-
+
ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!ebuf) {
printk(KERN_WARNING "Failed to allocate page buffer for verifying erase at 0x%08x. Refiling\n", jeb->offset);
static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
{
- struct jffs2_raw_node_ref *marker_ref = NULL;
size_t retlen;
int ret;
uint32_t bad_offset;
case -EIO: goto filebad;
}
- /* Write the erase complete marker */
+ /* Write the erase complete marker */
D1(printk(KERN_DEBUG "Writing erased marker to block at 0x%08x\n", jeb->offset));
bad_offset = jeb->offset;
goto filebad;
}
- jeb->first_node = jeb->last_node = NULL;
+ /* Everything else got zeroed before the erase */
jeb->free_size = c->sector_size;
- jeb->used_size = 0;
- jeb->dirty_size = 0;
- jeb->wasted_size = 0;
-
} else {
struct kvec vecs[1];
.totlen = cpu_to_je32(c->cleanmarker_size)
};
- marker_ref = jffs2_alloc_raw_node_ref();
- if (!marker_ref) {
- printk(KERN_WARNING "Failed to allocate raw node ref for clean marker. Refiling\n");
- goto refile;
- }
+ jffs2_prealloc_raw_node_refs(c, jeb, 1);
marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
vecs[0].iov_base = (unsigned char *) ▮
vecs[0].iov_len = sizeof(marker);
ret = jffs2_flash_direct_writev(c, vecs, 1, jeb->offset, &retlen);
-
+
if (ret || retlen != sizeof(marker)) {
if (ret)
printk(KERN_WARNING "Write clean marker to block at 0x%08x failed: %d\n",
printk(KERN_WARNING "Short write to newly-erased block at 0x%08x: Wanted %zd, got %zd\n",
jeb->offset, sizeof(marker), retlen);
- jffs2_free_raw_node_ref(marker_ref);
goto filebad;
}
- marker_ref->next_in_ino = NULL;
- marker_ref->next_phys = NULL;
- marker_ref->flash_offset = jeb->offset | REF_NORMAL;
- marker_ref->__totlen = c->cleanmarker_size;
-
- jeb->first_node = jeb->last_node = marker_ref;
-
- jeb->free_size = c->sector_size - c->cleanmarker_size;
- jeb->used_size = c->cleanmarker_size;
- jeb->dirty_size = 0;
- jeb->wasted_size = 0;
+ /* Everything else got zeroed before the erase */
+ jeb->free_size = c->sector_size;
+ /* FIXME Special case for cleanmarker in empty block */
+ jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL);
}
spin_lock(&c->erase_completion_lock);
c->free_size += jeb->free_size;
c->used_size += jeb->used_size;
- ACCT_SANITY_CHECK(c,jeb);
- D1(ACCT_PARANOIA_CHECK(jeb));
+ jffs2_dbg_acct_sanity_check_nolock(c,jeb);
+ jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
list_add_tail(&jeb->list, &c->free_list);
c->nr_erasing_blocks--;