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path: root/fs/jffs2/erase.c
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Diffstat (limited to 'fs/jffs2/erase.c')
-rw-r--r--fs/jffs2/erase.c56
1 files changed, 22 insertions, 34 deletions
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index dad68fdffe9e..1862e8bc101d 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -30,7 +30,6 @@ 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,
@@ -136,7 +135,7 @@ void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
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);
@@ -231,6 +230,7 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
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;
}
@@ -283,22 +283,27 @@ static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c,
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)
@@ -351,7 +356,6 @@ fail:
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;
@@ -373,12 +377,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
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];
@@ -388,11 +388,7 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
.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));
@@ -408,21 +404,13 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
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);