*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: nodelist.c,v 1.114 2005/09/21 13:28:35 dedekind Exp $
+ * $Id: nodelist.c,v 1.115 2005/11/07 11:14:40 gleixner Exp $
*
*/
#include <linux/pagemap.h>
#include "nodelist.h"
+static void jffs2_obsolete_node_frag(struct jffs2_sb_info *c,
+ struct jffs2_node_frag *this);
+
void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list)
{
struct jffs2_full_dirent **prev = list;
-
+
dbg_dentlist("add dirent \"%s\", ino #%u\n", new->name, new->ino);
while ((*prev) && (*prev)->nhash <= new->nhash) {
if (size == 0)
return;
- /*
+ /*
* If the last fragment starts at the RAM page boundary, it is
* REF_PRISTINE irrespective of its size.
*/
frag = frag_last(list);
if (frag->node && (frag->ofs & (PAGE_CACHE_SIZE - 1)) == 0) {
dbg_fragtree2("marking the last fragment 0x%08x-0x%08x REF_PRISTINE.\n",
- frag->ofs, frag->ofs + frag->size);
+ frag->ofs, frag->ofs + frag->size);
frag->node->raw->flash_offset = ref_offset(frag->node->raw) | REF_PRISTINE;
}
}
-void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *this)
+static void jffs2_obsolete_node_frag(struct jffs2_sb_info *c,
+ struct jffs2_node_frag *this)
{
if (this->node) {
this->node->frags--;
ref_offset(this->node->raw), this->node->ofs, this->node->ofs+this->node->size, this->node->frags);
mark_ref_normal(this->node->raw);
}
-
+
}
jffs2_free_node_frag(this);
}
while (*link) {
parent = *link;
base = rb_entry(parent, struct jffs2_node_frag, rb);
-
+
if (newfrag->ofs > base->ofs)
link = &base->rb.rb_right;
else if (newfrag->ofs < base->ofs)
/*
* Allocate and initializes a new fragment.
*/
-static inline struct jffs2_node_frag * new_fragment(struct jffs2_full_dnode *fn, uint32_t ofs, uint32_t size)
+static struct jffs2_node_frag * new_fragment(struct jffs2_full_dnode *fn, uint32_t ofs, uint32_t size)
{
struct jffs2_node_frag *newfrag;
-
+
newfrag = jffs2_alloc_node_frag();
if (likely(newfrag)) {
newfrag->ofs = ofs;
}
if (this) {
- /* By definition, the 'this' node has no right-hand child,
+ /* By definition, the 'this' node has no right-hand child,
because there are no frags with offset greater than it.
So that's where we want to put the hole */
dbg_fragtree2("add hole frag %#04x-%#04x on the right of the new frag.\n",
rb_insert_color(&holefrag->rb, root);
this = holefrag;
}
-
+
if (this) {
- /* By definition, the 'this' node has no right-hand child,
+ /* By definition, the 'this' node has no right-hand child,
because there are no frags with offset greater than it.
So that's where we want to put new fragment */
dbg_fragtree2("add the new node at the right\n");
- rb_link_node(&newfrag->rb, &this->rb, &this->rb.rb_right);
+ rb_link_node(&newfrag->rb, &this->rb, &this->rb.rb_right);
} else {
dbg_fragtree2("insert the new node at the root of the tree\n");
rb_link_node(&newfrag->rb, NULL, &root->rb_node);
dbg_fragtree2("lookup gave no frag\n");
lastend = 0;
}
-
+
/* See if we ran off the end of the fragtree */
if (lastend <= newfrag->ofs) {
/* We did */
this->ofs, this->ofs + this->size);
/* OK. 'this' is pointing at the first frag that newfrag->ofs at least partially obsoletes,
- * - i.e. newfrag->ofs < this->ofs+this->size && newfrag->ofs >= this->ofs
+ * - i.e. newfrag->ofs < this->ofs+this->size && newfrag->ofs >= this->ofs
*/
if (newfrag->ofs > this->ofs) {
/* This node isn't completely obsoleted. The start of it remains valid */
if (this->node)
dbg_fragtree2("split old frag 0x%04x-0x%04x, phys 0x%08x\n",
this->ofs, this->ofs+this->size, ref_offset(this->node->raw));
- else
+ else
dbg_fragtree2("split old hole frag 0x%04x-0x%04x\n",
this->ofs, this->ofs+this->size);
-
+
/* New second frag pointing to this's node */
newfrag2 = new_fragment(this->node, newfrag->ofs + newfrag->size,
this->ofs + this->size - newfrag->ofs - newfrag->size);
from newfrag to insert newfrag2. */
jffs2_fragtree_insert(newfrag, this);
rb_insert_color(&newfrag->rb, root);
-
+
jffs2_fragtree_insert(newfrag2, newfrag);
rb_insert_color(&newfrag2->rb, root);
-
+
return 0;
}
/* New node just reduces 'this' frag in size, doesn't split it */
jffs2_fragtree_insert(newfrag, this);
rb_insert_color(&newfrag->rb, root);
} else {
- /* New frag starts at the same point as 'this' used to. Replace
+ /* New frag starts at the same point as 'this' used to. Replace
it in the tree without doing a delete and insertion */
dbg_fragtree2("inserting newfrag (*%p),%d-%d in before 'this' (*%p),%d-%d\n",
newfrag, newfrag->ofs, newfrag->ofs+newfrag->size, this, this->ofs, this->ofs+this->size);
-
+
rb_replace_node(&this->rb, &newfrag->rb, root);
-
+
if (newfrag->ofs + newfrag->size >= this->ofs+this->size) {
dbg_fragtree2("obsoleting node frag %p (%x-%x)\n", this, this->ofs, this->ofs+this->size);
jffs2_obsolete_node_frag(c, this);
}
}
/* OK, now we have newfrag added in the correct place in the tree, but
- frag_next(newfrag) may be a fragment which is overlapped by it
+ frag_next(newfrag) may be a fragment which is overlapped by it
*/
while ((this = frag_next(newfrag)) && newfrag->ofs + newfrag->size >= this->ofs + this->size) {
/* 'this' frag is obsoleted completely. */
rb_erase(&this->rb, root);
jffs2_obsolete_node_frag(c, this);
}
- /* Now we're pointing at the first frag which isn't totally obsoleted by
+ /* Now we're pointing at the first frag which isn't totally obsoleted by
the new frag */
if (!this || newfrag->ofs + newfrag->size == this->ofs)
return 0;
}
-/*
+/*
* Given an inode, probably with existing tree of fragments, add the new node
* to the fragment tree.
*/
dbg_fragtree("adding node %#04x-%#04x @0x%08x on flash, newfrag *%p\n",
fn->ofs, fn->ofs+fn->size, ref_offset(fn->raw), newfrag);
-
+
ret = jffs2_add_frag_to_fragtree(c, &f->fragtree, newfrag);
if (unlikely(ret))
return ret;
struct jffs2_node_frag *prev = frag_prev(newfrag);
mark_ref_normal(fn->raw);
- /* If we don't start at zero there's _always_ a previous */
+ /* If we don't start at zero there's _always_ a previous */
if (prev->node)
mark_ref_normal(prev->node->raw);
}
if ((newfrag->ofs+newfrag->size) & (PAGE_CACHE_SIZE-1)) {
struct jffs2_node_frag *next = frag_next(newfrag);
-
+
if (next) {
mark_ref_normal(fn->raw);
if (next->node)
int err = 0, pointed = 0;
struct jffs2_eraseblock *jeb;
unsigned char *buffer;
- uint32_t crc, ofs, retlen, len;
+ uint32_t crc, ofs, len;
+ size_t retlen;
BUG_ON(tn->csize == 0);
if (!jffs2_is_writebuffered(c))
goto adj_acc;
-
+
/* Calculate how many bytes were already checked */
ofs = ref_offset(ref) + sizeof(struct jffs2_raw_inode);
len = ofs % c->wbuf_pagesize;
ref_offset(ref), tn->csize, ofs);
goto adj_acc;
}
-
+
ofs += len;
len = tn->csize - len;
-
+
dbg_readinode("check node at %#08x, data length %u, partial CRC %#08x, correct CRC %#08x, data starts at %#08x, start checking from %#08x - %u bytes.\n",
ref_offset(ref), tn->csize, tn->partial_crc, tn->data_crc, ofs - len, ofs, len);
-
+
#ifndef __ECOS
/* TODO: instead, incapsulate point() stuff to jffs2_flash_read(),
* adding and jffs2_flash_read_end() interface. */
if (c->mtd->point) {
err = c->mtd->point(c->mtd, ofs, len, &retlen, &buffer);
if (!err && retlen < tn->csize) {
- JFFS2_WARNING("MTD point returned len too short: %u instead of %u.\n", retlen, tn->csize);
+ JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize);
c->mtd->unpoint(c->mtd, buffer, ofs, len);
} else if (err)
JFFS2_WARNING("MTD point failed: error code %d.\n", err);
pointed = 1; /* succefully pointed to device */
}
#endif
-
+
if (!pointed) {
buffer = kmalloc(len, GFP_KERNEL);
if (unlikely(!buffer))
return -ENOMEM;
-
+
/* TODO: this is very frequent pattern, make it a separate
* routine */
err = jffs2_flash_read(c, ofs, len, &retlen, buffer);
JFFS2_ERROR("can not read %d bytes from 0x%08x, error code: %d.\n", len, ofs, err);
goto free_out;
}
-
+
if (retlen != len) {
- JFFS2_ERROR("short read at %#08x: %d instead of %d.\n", ofs, retlen, len);
+ JFFS2_ERROR("short read at %#08x: %zd instead of %d.\n", ofs, retlen, len);
err = -EIO;
goto free_out;
}
jeb = &c->blocks[ref->flash_offset / c->sector_size];
len = ref_totlen(c, jeb, ref);
- /*
+ /*
* Mark the node as having been checked and fix the
* accounting accordingly.
*/
*
* Checks the node if we are in the checking stage.
*/
-static inline int check_node(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_tmp_dnode_info *tn)
+static int check_node(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_tmp_dnode_info *tn)
{
int ret;
-
+
BUG_ON(ref_obsolete(tn->fn->raw));
/* We only check the data CRC of unchecked nodes */
if (ref_flags(tn->fn->raw) != REF_UNCHECKED)
return 0;
-
+
dbg_fragtree2("check node %#04x-%#04x, phys offs %#08x.\n",
tn->fn->ofs, tn->fn->ofs + tn->fn->size, ref_offset(tn->fn->raw));
return ret;
}
-/*
+/*
* Helper function for jffs2_add_older_frag_to_fragtree().
*
* Called when the new fragment that is being inserted
newfrag->ofs, newfrag->ofs + newfrag->size, hole->ofs, hole->ofs + hole->size);
if (hole->ofs == newfrag->ofs) {
- /*
+ /*
* Well, the new fragment actually starts at the same offset as
* the hole.
*/
if (hole->ofs + hole->size > newfrag->ofs + newfrag->size) {
- /*
+ /*
* We replace the overlapped left part of the hole by
* the new node.
*/
-
+
dbg_fragtree2("insert fragment %#04x-%#04x and cut the left part of the hole\n",
newfrag->ofs, newfrag->ofs + newfrag->size);
rb_replace_node(&hole->rb, &newfrag->rb, root);
-
+
hole->ofs += newfrag->size;
hole->size -= newfrag->size;
-
- /*
+
+ /*
* We know that 'hole' should be the right hand
* fragment.
*/
jffs2_fragtree_insert(hole, newfrag);
rb_insert_color(&hole->rb, root);
} else {
- /*
+ /*
* Ah, the new fragment is of the same size as the hole.
* Relace the hole by it.
*/
}
} else {
/* The new fragment lefts some hole space at the left */
-
+
struct jffs2_node_frag * newfrag2 = NULL;
if (hole->ofs + hole->size > newfrag->ofs + newfrag->size) {
jffs2_fragtree_insert(newfrag, hole);
rb_insert_color(&newfrag->rb, root);
-
+
if (newfrag2) {
dbg_fragtree2("left the hole %#04x-%#04x at the right\n",
newfrag2->ofs, newfrag2->ofs + newfrag2->size);
lastend = this->ofs + this->size;
else
lastend = 0;
-
+
/* Detect the preliminary type of node */
if (fn->size >= PAGE_CACHE_SIZE)
ref_flag = REF_PRISTINE;
else
ref_flag = REF_NORMAL;
-
+
/* See if we ran off the end of the root */
if (lastend <= fn_ofs) {
/* We did */
-
- /*
+
+ /*
* We are going to insert the new node into the
* fragment tree, so check it.
*/
fn->frags = 0;
while (1) {
- /*
+ /*
* Here we have:
* fn_ofs < this->ofs + this->size && fn_ofs >= this->ofs.
- *
+ *
* Remember, 'this' has higher version, any non-hole node
* which is already in the fragtree is newer then the newly
* inserted.
*/
if (!this->node) {
- /*
+ /*
* 'this' is the hole fragment, so at least the
* beginning of the new fragment is valid.
*/
-
- /*
+
+ /*
* We are going to insert the new node into the
* fragment tree, so check it.
*/
return err;
checked = 1;
}
-
+
if (this->ofs + this->size >= fn_ofs + fn_size) {
/* We split the hole on two parts */
goto out_ok;
}
- /*
+ /*
* The beginning of the new fragment is valid since it
* overlaps the hole node.
*/
this->ofs + this->size - fn_ofs);
if (unlikely(!newfrag))
return -ENOMEM;
-
+
if (fn_ofs == this->ofs) {
- /*
+ /*
* The new node starts at the same offset as
* the hole and supersieds the hole.
*/
rb_replace_node(&this->rb, &newfrag->rb, root);
jffs2_free_node_frag(this);
} else {
- /*
+ /*
* The hole becomes shorter as its right part
* is supersieded by the new fragment.
*/
dbg_fragtree2("reduce size of hole %#04x-%#04x to %#04x-%#04x\n",
this->ofs, this->ofs + this->size, this->ofs, this->ofs + this->size - newfrag->size);
-
+
dbg_fragtree2("add new fragment %#04x-%#04x, refcnt %d\n", fn_ofs,
fn_ofs + this->ofs + this->size - fn_ofs, fn->frags);
-
+
this->size -= newfrag->size;
jffs2_fragtree_insert(newfrag, this);
rb_insert_color(&newfrag->rb, root);
}
-
+
fn_ofs += newfrag->size;
fn_size -= newfrag->size;
this = rb_entry(rb_next(&newfrag->rb),
this->ofs, this->ofs + this->size, this->node ? "(data)" : "(hole)");
}
- /*
+ /*
* 'This' node is not the hole so it obsoletes the new fragment
* either fully or partially.
*/
goto out_ok;
} else {
struct jffs2_node_frag *new_this;
-
+
/* 'This' node obsoletes the beginning of the new node */
dbg_fragtree2("the beginning %#04x-%#04x is obsolete\n", fn_ofs, this->ofs + this->size);
ref_flag = REF_NORMAL;
-
+
fn_size -= this->ofs + this->size - fn_ofs;
fn_ofs = this->ofs + this->size;
dbg_fragtree2("now considering %#04x-%#04x\n", fn_ofs, fn_ofs + fn_size);
-
+
new_this = rb_entry(rb_next(&this->rb), struct jffs2_node_frag, rb);
if (!new_this) {
- /*
+ /*
* There is no next fragment. Add the rest of
* the new node as the right-hand child.
*/
return err;
checked = 1;
}
-
+
fn->frags += 1;
newfrag = new_fragment(fn, fn_ofs, fn_size);
if (unlikely(!newfrag))
dbg_fragtree2("there are no more fragments, insert %#04x-%#04x\n",
newfrag->ofs, newfrag->ofs + newfrag->size);
- rb_link_node(&newfrag->rb, &this->rb, &this->rb.rb_right);
+ rb_link_node(&newfrag->rb, &this->rb, &this->rb.rb_right);
rb_insert_color(&newfrag->rb, root);
goto out_ok;
} else {
/* During mount, this needs no locking. During normal operation, its
callers want to do other stuff while still holding the inocache_lock.
- Rather than introducing special case get_ino_cache functions or
+ Rather than introducing special case get_ino_cache functions or
callbacks, we just let the caller do the locking itself. */
-
+
struct jffs2_inode_cache *jffs2_get_ino_cache(struct jffs2_sb_info *c, uint32_t ino)
{
struct jffs2_inode_cache *ret;
while (ret && ret->ino < ino) {
ret = ret->next;
}
-
+
if (ret && ret->ino != ino)
ret = NULL;
{
struct jffs2_inode_cache **prev;
+#ifdef CONFIG_JFFS2_FS_XATTR
+ BUG_ON(old->xref);
+#endif
dbg_inocache("del %p (ino #%u)\n", old, old->ino);
spin_lock(&c->inocache_lock);
-
+
prev = &c->inocache_list[old->ino % INOCACHE_HASHSIZE];
-
+
while ((*prev) && (*prev)->ino < old->ino) {
prev = &(*prev)->next;
}
/* Free it now unless it's in READING or CLEARING state, which
are the transitions upon read_inode() and clear_inode(). The
- rest of the time we know nobody else is looking at it, and
+ rest of the time we know nobody else is looking at it, and
if it's held by read_inode() or clear_inode() they'll free it
for themselves. */
if (old->state != INO_STATE_READING && old->state != INO_STATE_CLEARING)
{
int i;
struct jffs2_inode_cache *this, *next;
-
+
for (i=0; i<INOCACHE_HASHSIZE; i++) {
this = c->inocache_list[i];
while (this) {
next = this->next;
+ jffs2_xattr_free_inode(c, this);
jffs2_free_inode_cache(this);
this = next;
}
for (i=0; i<c->nr_blocks; i++) {
this = c->blocks[i].first_node;
- while(this) {
- next = this->next_phys;
- jffs2_free_raw_node_ref(this);
+ while (this) {
+ if (this[REFS_PER_BLOCK].flash_offset == REF_LINK_NODE)
+ next = this[REFS_PER_BLOCK].next_in_ino;
+ else
+ next = NULL;
+
+ jffs2_free_refblock(this);
this = next;
}
c->blocks[i].first_node = c->blocks[i].last_node = NULL;
}
}
-
+
struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset)
{
- /* The common case in lookup is that there will be a node
+ /* The common case in lookup is that there will be a node
which precisely matches. So we go looking for that first */
struct rb_node *next;
struct jffs2_node_frag *prev = NULL;
if (prev)
dbg_fragtree2("no match. Returning frag %#04x-%#04x, closest previous\n",
prev->ofs, prev->ofs+prev->size);
- else
+ else
dbg_fragtree2("returning NULL, empty fragtree\n");
-
+
return prev;
}
return;
dbg_fragtree("killing\n");
-
+
frag = (rb_entry(root->rb_node, struct jffs2_node_frag, rb));
while(frag) {
if (frag->rb.rb_left) {
}
if (frag->node && !(--frag->node->frags)) {
- /* Not a hole, and it's the final remaining frag
+ /* Not a hole, and it's the final remaining frag
of this node. Free the node */
if (c)
jffs2_mark_node_obsolete(c, frag->node->raw);
-
+
jffs2_free_full_dnode(frag->node);
}
parent = frag_parent(frag);
if (parent) {
if (frag_left(parent) == frag)
parent->rb.rb_left = NULL;
- else
+ else
parent->rb.rb_right = NULL;
}
cond_resched();
}
}
+
+struct jffs2_raw_node_ref *jffs2_link_node_ref(struct jffs2_sb_info *c,
+ struct jffs2_eraseblock *jeb,
+ uint32_t ofs, uint32_t len,
+ struct jffs2_inode_cache *ic)
+{
+ struct jffs2_raw_node_ref *ref;
+
+ BUG_ON(!jeb->allocated_refs);
+ jeb->allocated_refs--;
+
+ ref = jeb->last_node;
+
+ dbg_noderef("Last node at %p is (%08x,%p)\n", ref, ref->flash_offset,
+ ref->next_in_ino);
+
+ while (ref->flash_offset != REF_EMPTY_NODE) {
+ if (ref->flash_offset == REF_LINK_NODE)
+ ref = ref->next_in_ino;
+ else
+ ref++;
+ }
+
+ dbg_noderef("New ref is %p (%08x becomes %08x,%p) len 0x%x\n", ref,
+ ref->flash_offset, ofs, ref->next_in_ino, len);
+
+ ref->flash_offset = ofs;
+
+ if (!jeb->first_node) {
+ jeb->first_node = ref;
+ BUG_ON(ref_offset(ref) != jeb->offset);
+ } else if (unlikely(ref_offset(ref) != jeb->offset + c->sector_size - jeb->free_size)) {
+ uint32_t last_len = ref_totlen(c, jeb, jeb->last_node);
+
+ JFFS2_ERROR("Adding new ref %p at (0x%08x-0x%08x) not immediately after previous (0x%08x-0x%08x)\n",
+ ref, ref_offset(ref), ref_offset(ref)+len,
+ ref_offset(jeb->last_node),
+ ref_offset(jeb->last_node)+last_len);
+ BUG();
+ }
+ jeb->last_node = ref;
+
+ if (ic) {
+ ref->next_in_ino = ic->nodes;
+ ic->nodes = ref;
+ } else {
+ ref->next_in_ino = NULL;
+ }
+
+ switch(ref_flags(ref)) {
+ case REF_UNCHECKED:
+ c->unchecked_size += len;
+ jeb->unchecked_size += len;
+ break;
+
+ case REF_NORMAL:
+ case REF_PRISTINE:
+ c->used_size += len;
+ jeb->used_size += len;
+ break;
+
+ case REF_OBSOLETE:
+ c->dirty_size += len;
+ jeb->dirty_size += len;
+ break;
+ }
+ c->free_size -= len;
+ jeb->free_size -= len;
+
+#ifdef TEST_TOTLEN
+ /* Set (and test) __totlen field... for now */
+ ref->__totlen = len;
+ ref_totlen(c, jeb, ref);
+#endif
+ return ref;
+}
+
+/* No locking, no reservation of 'ref'. Do not use on a live file system */
+int jffs2_scan_dirty_space(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+ uint32_t size)
+{
+ if (!size)
+ return 0;
+ if (unlikely(size > jeb->free_size)) {
+ printk(KERN_CRIT "Dirty space 0x%x larger then free_size 0x%x (wasted 0x%x)\n",
+ size, jeb->free_size, jeb->wasted_size);
+ BUG();
+ }
+ /* REF_EMPTY_NODE is !obsolete, so that works OK */
+ if (jeb->last_node && ref_obsolete(jeb->last_node)) {
+#ifdef TEST_TOTLEN
+ jeb->last_node->__totlen += size;
+#endif
+ c->dirty_size += size;
+ c->free_size -= size;
+ jeb->dirty_size += size;
+ jeb->free_size -= size;
+ } else {
+ uint32_t ofs = jeb->offset + c->sector_size - jeb->free_size;
+ ofs |= REF_OBSOLETE;
+
+ jffs2_link_node_ref(c, jeb, ofs, size, NULL);
+ }
+
+ return 0;
+}
+
+/* Calculate totlen from surrounding nodes or eraseblock */
+static inline uint32_t __ref_totlen(struct jffs2_sb_info *c,
+ struct jffs2_eraseblock *jeb,
+ struct jffs2_raw_node_ref *ref)
+{
+ uint32_t ref_end;
+ struct jffs2_raw_node_ref *next_ref = ref_next(ref);
+
+ if (next_ref)
+ ref_end = ref_offset(next_ref);
+ else {
+ if (!jeb)
+ jeb = &c->blocks[ref->flash_offset / c->sector_size];
+
+ /* Last node in block. Use free_space */
+ if (unlikely(ref != jeb->last_node)) {
+ printk(KERN_CRIT "ref %p @0x%08x is not jeb->last_node (%p @0x%08x)\n",
+ ref, ref_offset(ref), jeb->last_node, jeb->last_node?ref_offset(jeb->last_node):0);
+ BUG();
+ }
+ ref_end = jeb->offset + c->sector_size - jeb->free_size;
+ }
+ return ref_end - ref_offset(ref);
+}
+
+uint32_t __jffs2_ref_totlen(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
+ struct jffs2_raw_node_ref *ref)
+{
+ uint32_t ret;
+
+ ret = __ref_totlen(c, jeb, ref);
+
+#ifdef TEST_TOTLEN
+ if (unlikely(ret != ref->__totlen)) {
+ if (!jeb)
+ jeb = &c->blocks[ref->flash_offset / c->sector_size];
+
+ printk(KERN_CRIT "Totlen for ref at %p (0x%08x-0x%08x) miscalculated as 0x%x instead of %x\n",
+ ref, ref_offset(ref), ref_offset(ref)+ref->__totlen,
+ ret, ref->__totlen);
+ if (ref_next(ref)) {
+ printk(KERN_CRIT "next %p (0x%08x-0x%08x)\n", ref_next(ref), ref_offset(ref_next(ref)),
+ ref_offset(ref_next(ref))+ref->__totlen);
+ } else
+ printk(KERN_CRIT "No next ref. jeb->last_node is %p\n", jeb->last_node);
+
+ printk(KERN_CRIT "jeb->wasted_size %x, dirty_size %x, used_size %x, free_size %x\n", jeb->wasted_size, jeb->dirty_size, jeb->used_size, jeb->free_size);
+
+#if defined(JFFS2_DBG_DUMPS) || defined(JFFS2_DBG_PARANOIA_CHECKS)
+ __jffs2_dbg_dump_node_refs_nolock(c, jeb);
+#endif
+
+ WARN_ON(1);
+
+ ret = ref->__totlen;
+ }
+#endif /* TEST_TOTLEN */
+ return ret;
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff