[JFFS2] Reduce visibility of raw_node_ref to upper layers of JFFS2
code.
Linux-MTD Mailing List
linux-mtd at lists.infradead.org
Tue May 23 21:59:02 EDT 2006
Commit: 2f785402f39b96a077b6e62bf26164bfb8e0c980
Parent: 4cbb9b80e171107c6c34116283fe38e5a396c68b
Author: David Woodhouse <dwmw2 at infradead.org>
AuthorDate: Wed May 24 02:04:45 2006 +0100
Commit: David Woodhouse <dwmw2 at infradead.org>
CommitDate: Wed May 24 02:04:45 2006 +0100
[JFFS2] Reduce visibility of raw_node_ref to upper layers of JFFS2 code.
As the first step towards eliminating the ref->next_phys member and saving
memory by using an _array_ of struct jffs2_raw_node_ref per eraseblock,
stop the write functions from allocating their own refs; have them just
_reserve_ the appropriate number instead. Then jffs2_link_node_ref() can
just fill them in.
Use a linked list of pre-allocated refs in the superblock, for now. Once
we switch to an array, it'll just be a case of extending that array.
Signed-off-by: David Woodhouse <dwmw2 at infradead.org>
fs/jffs2/erase.c | 16 +----
fs/jffs2/gc.c | 25 ++-----
fs/jffs2/jffs2_fs_sb.h | 3 +
fs/jffs2/malloc.c | 26 +++++++-
fs/jffs2/nodelist.c | 51 ++++++++++-----
fs/jffs2/nodelist.h | 19 +++---
fs/jffs2/nodemgmt.c | 39 +++++++-----
fs/jffs2/scan.c | 77 ++++-------------------
fs/jffs2/summary.c | 162 +++++++++++++++---------------------------------
fs/jffs2/wbuf.c | 26 +++-----
fs/jffs2/write.c | 71 ++++++---------------
fs/jffs2/xattr.c | 38 +++--------
12 files changed, 204 insertions(+), 349 deletions(-)
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index 4616fed..f939f90 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -296,7 +296,7 @@ void jffs2_free_all_node_refs(struct jff
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);
+ __jffs2_free_raw_node_ref(ref);
}
jeb->last_node = NULL;
}
@@ -351,7 +351,6 @@ 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;
@@ -384,11 +383,7 @@ static void jffs2_mark_erased_block(stru
.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, 1);
marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
@@ -404,16 +399,13 @@ static void jffs2_mark_erased_block(stru
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;
}
/* Everything else got zeroed before the erase */
jeb->free_size = c->sector_size;
-
- marker_ref->flash_offset = jeb->offset | REF_NORMAL;
-
- jffs2_link_node_ref(c, jeb, marker_ref, c->cleanmarker_size, NULL);
+ /* 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);
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
index f9e982a..a22ff5d 100644
--- a/fs/jffs2/gc.c
+++ b/fs/jffs2/gc.c
@@ -528,7 +528,6 @@ static int jffs2_garbage_collect_pristin
struct jffs2_raw_node_ref *raw)
{
union jffs2_node_union *node;
- struct jffs2_raw_node_ref *nraw;
size_t retlen;
int ret;
uint32_t phys_ofs, alloclen;
@@ -618,30 +617,21 @@ static int jffs2_garbage_collect_pristin
}
}
- nraw = jffs2_alloc_raw_node_ref();
- if (!nraw) {
- ret = -ENOMEM;
- goto out_node;
- }
-
/* OK, all the CRCs are good; this node can just be copied as-is. */
retry:
- nraw->flash_offset = phys_ofs = write_ofs(c);
+ phys_ofs = write_ofs(c);
ret = jffs2_flash_write(c, phys_ofs, rawlen, &retlen, (char *)node);
if (ret || (retlen != rawlen)) {
printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n",
- rawlen, nraw->flash_offset, ret, retlen);
+ rawlen, phys_ofs, ret, retlen);
if (retlen) {
- nraw->flash_offset |= REF_OBSOLETE;
- jffs2_add_physical_node_ref(c, nraw, rawlen, NULL);
- jffs2_mark_node_obsolete(c, nraw);
+ jffs2_add_physical_node_ref(c, phys_ofs | REF_OBSOLETE, rawlen, NULL);
} else {
- printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", nraw->flash_offset);
- jffs2_free_raw_node_ref(nraw);
+ printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", phys_ofs);
}
- if (!retried && (nraw = jffs2_alloc_raw_node_ref())) {
+ if (!retried) {
/* Try to reallocate space and retry */
uint32_t dummy;
struct jffs2_eraseblock *jeb = &c->blocks[phys_ofs / c->sector_size];
@@ -666,16 +656,13 @@ static int jffs2_garbage_collect_pristin
goto retry;
}
D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
- jffs2_free_raw_node_ref(nraw);
}
- jffs2_free_raw_node_ref(nraw);
if (!ret)
ret = -EIO;
goto out_node;
}
- nraw->flash_offset |= REF_PRISTINE;
- jffs2_add_physical_node_ref(c, nraw, rawlen, ic);
+ jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, rawlen, ic);
jffs2_mark_node_obsolete(c, raw);
D1(printk(KERN_DEBUG "WHEEE! GC REF_PRISTINE node at 0x%08x succeeded\n", ref_offset(raw)));
diff --git a/fs/jffs2/jffs2_fs_sb.h b/fs/jffs2/jffs2_fs_sb.h
index 272fbea..67529f0 100644
--- a/fs/jffs2/jffs2_fs_sb.h
+++ b/fs/jffs2/jffs2_fs_sb.h
@@ -26,6 +26,9 @@ struct jffs2_inodirty;
struct jffs2_sb_info {
struct mtd_info *mtd;
+ struct jffs2_raw_node_ref *refs;
+ int reserved_refs;
+
uint32_t highest_ino;
uint32_t checked_ino;
diff --git a/fs/jffs2/malloc.c b/fs/jffs2/malloc.c
index f2473fa..3df3250 100644
--- a/fs/jffs2/malloc.c
+++ b/fs/jffs2/malloc.c
@@ -190,7 +190,29 @@ void jffs2_free_tmp_dnode_info(struct jf
kmem_cache_free(tmp_dnode_info_slab, x);
}
-struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
+int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, int nr)
+{
+ struct jffs2_raw_node_ref *p = c->refs;
+
+ dbg_memalloc("%d\n", nr);
+
+ while (nr && p) {
+ p = p->next_in_ino;
+ nr--;
+ }
+ while (nr) {
+ p = __jffs2_alloc_raw_node_ref();
+ if (!p)
+ return -ENOMEM;
+ p->next_in_ino = c->refs;
+ c->refs = p;
+ nr--;
+ }
+ c->reserved_refs = nr;
+ return 0;
+}
+
+struct jffs2_raw_node_ref *__jffs2_alloc_raw_node_ref(void)
{
struct jffs2_raw_node_ref *ret;
ret = kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
@@ -198,7 +220,7 @@ struct jffs2_raw_node_ref *jffs2_alloc_r
return ret;
}
-void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
+void __jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
{
dbg_memalloc("%p\n", x);
kmem_cache_free(raw_node_ref_slab, x);
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c
index d25d491..1e6eabd 100644
--- a/fs/jffs2/nodelist.c
+++ b/fs/jffs2/nodelist.c
@@ -953,13 +953,19 @@ void jffs2_free_raw_node_refs(struct jff
for (i=0; i<c->nr_blocks; i++) {
this = c->blocks[i].first_node;
- while(this) {
+ while (this) {
next = this->next_phys;
- jffs2_free_raw_node_ref(this);
+ __jffs2_free_raw_node_ref(this);
this = next;
}
c->blocks[i].first_node = c->blocks[i].last_node = NULL;
}
+ this = c->refs;
+ while (this) {
+ next = this->next_in_ino;
+ __jffs2_free_raw_node_ref(this);
+ this = next;
+ }
}
struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset)
@@ -1047,10 +1053,27 @@ void jffs2_kill_fragtree(struct rb_root
}
}
-void jffs2_link_node_ref(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
- struct jffs2_raw_node_ref *ref, uint32_t len,
- struct jffs2_inode_cache *ic)
+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;
+
+ /* These will be preallocated _very_ shortly. */
+ ref = c->refs;
+ if (!c->refs) {
+ JFFS2_WARNING("Using non-preallocated refs!\n");
+ ref = __jffs2_alloc_raw_node_ref();
+ BUG_ON(!ref);
+ WARN_ON(1);
+ } else {
+ c->refs = ref->next_in_ino;
+ }
+
+ ref->next_phys = NULL;
+ ref->flash_offset = ofs;
+
if (!jeb->first_node)
jeb->first_node = ref;
if (jeb->last_node) {
@@ -1093,15 +1116,15 @@ #endif
c->free_size -= len;
jeb->free_size -= len;
- ref->next_phys = NULL;
#ifdef TEST_TOTLEN
/* Set (and test) __totlen field... for now */
ref->__totlen = len;
ref_totlen(c, jeb, ref);
#endif
+ return ref;
}
-/* No locking. Do not use on a live file system */
+/* 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)
{
@@ -1121,18 +1144,10 @@ #endif
jeb->dirty_size += size;
jeb->free_size -= size;
} else {
- struct jffs2_raw_node_ref *ref;
- ref = jffs2_alloc_raw_node_ref();
- if (!ref)
- return -ENOMEM;
-
- ref->flash_offset = jeb->offset + c->sector_size - jeb->free_size;
- ref->flash_offset |= REF_OBSOLETE;
-#ifdef TEST_TOTLEN
- ref->__totlen = size;
-#endif
+ uint32_t ofs = jeb->offset + c->sector_size - jeb->free_size;
+ ofs |= REF_OBSOLETE;
- jffs2_link_node_ref(c, jeb, ref, size, NULL);
+ jffs2_link_node_ref(c, jeb, ofs, size, NULL);
}
return 0;
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index 76f1b94..7cc74d2 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -318,9 +318,10 @@ void jffs2_obsolete_node_frag(struct jff
int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn);
void jffs2_truncate_fragtree (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size);
int jffs2_add_older_frag_to_fragtree(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_tmp_dnode_info *tn);
-void jffs2_link_node_ref(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
- struct jffs2_raw_node_ref *ref, uint32_t len,
- struct jffs2_inode_cache *ic);
+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);
extern uint32_t __jffs2_ref_totlen(struct jffs2_sb_info *c,
struct jffs2_eraseblock *jeb,
struct jffs2_raw_node_ref *ref);
@@ -331,10 +332,9 @@ int jffs2_reserve_space(struct jffs2_sb_
uint32_t *len, int prio, uint32_t sumsize);
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, uint32_t sumsize);
-int jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
- struct jffs2_raw_node_ref *new,
- uint32_t len,
- struct jffs2_inode_cache *ic);
+struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
+ uint32_t ofs, uint32_t len,
+ struct jffs2_inode_cache *ic);
void jffs2_complete_reservation(struct jffs2_sb_info *c);
void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *raw);
@@ -378,8 +378,9 @@ struct jffs2_raw_inode *jffs2_alloc_raw_
void jffs2_free_raw_inode(struct jffs2_raw_inode *);
struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void);
void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *);
-struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void);
-void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
+int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, int nr);
+struct jffs2_raw_node_ref *__jffs2_alloc_raw_node_ref(void);
+void __jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
struct jffs2_node_frag *jffs2_alloc_node_frag(void);
void jffs2_free_node_frag(struct jffs2_node_frag *);
struct jffs2_inode_cache *jffs2_alloc_inode_cache(void);
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 8feb874..01bf277 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -137,6 +137,8 @@ int jffs2_reserve_space(struct jffs2_sb_
}
}
spin_unlock(&c->erase_completion_lock);
+ if (!ret)
+ ret = jffs2_prealloc_raw_node_refs(c, 1);
if (ret)
up(&c->alloc_sem);
return ret;
@@ -158,6 +160,9 @@ int jffs2_reserve_space_gc(struct jffs2_
}
}
spin_unlock(&c->erase_completion_lock);
+ if (!ret)
+ ret = jffs2_prealloc_raw_node_refs(c, 1);
+
return ret;
}
@@ -381,30 +386,30 @@ static int jffs2_do_reserve_space(struct
* Must be called with the alloc_sem held.
*/
-int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new,
- uint32_t len, struct jffs2_inode_cache *ic)
+struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
+ uint32_t ofs, uint32_t len,
+ struct jffs2_inode_cache *ic)
{
struct jffs2_eraseblock *jeb;
+ struct jffs2_raw_node_ref *new;
- jeb = &c->blocks[new->flash_offset / c->sector_size];
-#ifdef TEST_TOTLEN
- new->__totlen = len;
-#endif
+ jeb = &c->blocks[ofs / c->sector_size];
- D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n", ref_offset(new), ref_flags(new), len));
+ D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n",
+ ofs & ~3, ofs & 3, len));
#if 1
- /* we could get some obsolete nodes after nextblock was refiled
- in wbuf.c */
- if ((c->nextblock || !ref_obsolete(new))
- &&(jeb != c->nextblock || ref_offset(new) != jeb->offset + (c->sector_size - jeb->free_size))) {
+ /* Allow non-obsolete nodes only to be added at the end of c->nextblock,
+ if c->nextblock is set. Note that wbuf.c will file obsolete nodes
+ even after refiling c->nextblock */
+ if ((c->nextblock || ((ofs & 3) != REF_OBSOLETE))
+ && (jeb != c->nextblock || (ofs & ~3) != jeb->offset + (c->sector_size - jeb->free_size))) {
printk(KERN_WARNING "argh. node added in wrong place\n");
- jffs2_free_raw_node_ref(new);
- return -EINVAL;
+ return ERR_PTR(-EINVAL);
}
#endif
spin_lock(&c->erase_completion_lock);
- jffs2_link_node_ref(c, jeb, new, len, ic);
+ new = jffs2_link_node_ref(c, jeb, ofs, len, ic);
if (!jeb->free_size && !jeb->dirty_size && !ISDIRTY(jeb->wasted_size)) {
/* If it lives on the dirty_list, jffs2_reserve_space will put it there */
@@ -425,7 +430,7 @@ #endif
spin_unlock(&c->erase_completion_lock);
- return 0;
+ return new;
}
@@ -697,7 +702,7 @@ #endif
}
spin_unlock(&c->erase_completion_lock);
- jffs2_free_raw_node_ref(n);
+ __jffs2_free_raw_node_ref(n);
}
/* Also merge with the previous node in the list, if there is one
@@ -722,7 +727,7 @@ #endif
jeb->gc_node=p;
}
p->next_phys = ref->next_phys;
- jffs2_free_raw_node_ref(ref);
+ __jffs2_free_raw_node_ref(ref);
}
spin_unlock(&c->erase_completion_lock);
}
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 6fce703..87b0a41 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -317,7 +317,6 @@ static int jffs2_scan_xattr_node(struct
struct jffs2_summary *s)
{
struct jffs2_xattr_datum *xd;
- struct jffs2_raw_node_ref *raw;
uint32_t totlen, crc;
int err;
@@ -340,13 +339,8 @@ static int jffs2_scan_xattr_node(struct
return 0;
}
- raw = jffs2_alloc_raw_node_ref();
- if (!raw)
- return -ENOMEM;
-
xd = jffs2_setup_xattr_datum(c, je32_to_cpu(rx->xid), je32_to_cpu(rx->version));
if (IS_ERR(xd)) {
- jffs2_free_raw_node_ref(raw);
if (PTR_ERR(xd) == -EEXIST) {
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(rx->totlen)))))
return err;
@@ -358,12 +352,9 @@ static int jffs2_scan_xattr_node(struct
xd->name_len = rx->name_len;
xd->value_len = je16_to_cpu(rx->value_len);
xd->data_crc = je32_to_cpu(rx->data_crc);
- xd->node = raw;
-
- raw->flash_offset = ofs | REF_PRISTINE;
- jffs2_link_node_ref(c, jeb, raw, totlen, NULL);
- /* FIXME */ raw->next_in_ino = (void *)xd;
+ xd->node = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, totlen, NULL);
+ /* FIXME */ xd->node->next_in_ino = (void *)xd;
if (jffs2_sum_active())
jffs2_sum_add_xattr_mem(s, rx, ofs - jeb->offset);
@@ -377,7 +368,6 @@ static int jffs2_scan_xref_node(struct j
struct jffs2_summary *s)
{
struct jffs2_xattr_ref *ref;
- struct jffs2_raw_node_ref *raw;
uint32_t crc;
int err;
@@ -404,12 +394,6 @@ static int jffs2_scan_xref_node(struct j
if (!ref)
return -ENOMEM;
- raw = jffs2_alloc_raw_node_ref();
- if (!raw) {
- jffs2_free_xattr_ref(ref);
- return -ENOMEM;
- }
-
/* BEFORE jffs2_build_xattr_subsystem() called,
* ref->xid is used to store 32bit xid, xd is not used
* ref->ino is used to store 32bit inode-number, ic is not used
@@ -418,16 +402,13 @@ static int jffs2_scan_xref_node(struct j
* used to chain all xattr_ref object. It's re-chained to
* jffs2_inode_cache in jffs2_build_xattr_subsystem() correctly.
*/
- ref->node = raw;
ref->ino = je32_to_cpu(rr->ino);
ref->xid = je32_to_cpu(rr->xid);
ref->next = c->xref_temp;
c->xref_temp = ref;
- raw->flash_offset = ofs | REF_PRISTINE;
-
- jffs2_link_node_ref(c, jeb, raw, PAD(je32_to_cpu(rr->totlen)), NULL);
- /* FIXME */ raw->next_in_ino = (void *)ref;
+ ref->node = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(rr->totlen)), NULL);
+ /* FIXME */ ref->node->next_in_ino = (void *)ref;
if (jffs2_sum_active())
jffs2_sum_add_xref_mem(s, rr, ofs - jeb->offset);
@@ -597,6 +578,11 @@ scan_more:
jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
+ /* Make sure there are node refs available for use */
+ err = jffs2_prealloc_raw_node_refs(c, 2);
+ if (err)
+ return err;
+
cond_resched();
if (ofs & 3) {
@@ -839,14 +825,7 @@ #endif /* CONFIG_JFFS2_FS_XATTR */
return err;
ofs += PAD(sizeof(struct jffs2_unknown_node));
} else {
- struct jffs2_raw_node_ref *marker_ref = jffs2_alloc_raw_node_ref();
- if (!marker_ref) {
- printk(KERN_NOTICE "Failed to allocate node ref for clean marker\n");
- return -ENOMEM;
- }
- marker_ref->flash_offset = ofs | REF_NORMAL;
-
- jffs2_link_node_ref(c, jeb, marker_ref, c->cleanmarker_size, NULL);
+ jffs2_link_node_ref(c, jeb, ofs | REF_NORMAL, c->cleanmarker_size, NULL);
ofs += PAD(c->cleanmarker_size);
}
@@ -884,14 +863,9 @@ #endif /* CONFIG_JFFS2_FS_XATTR */
break;
case JFFS2_FEATURE_RWCOMPAT_COPY: {
- struct jffs2_raw_node_ref *ref;
D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
- ref = jffs2_alloc_raw_node_ref();
- if (!ref)
- return -ENOMEM;
- ref->flash_offset = ofs | REF_PRISTINE;
- jffs2_link_node_ref(c, jeb, ref, PAD(je32_to_cpu(node->totlen)), NULL);
+ jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(node->totlen)), NULL);
/* We can't summarise nodes we don't grok */
jffs2_sum_disable_collecting(s);
@@ -953,7 +927,6 @@ struct jffs2_inode_cache *jffs2_scan_mak
static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
struct jffs2_raw_inode *ri, uint32_t ofs, struct jffs2_summary *s)
{
- struct jffs2_raw_node_ref *raw;
struct jffs2_inode_cache *ic;
uint32_t ino = je32_to_cpu(ri->ino);
int err;
@@ -969,12 +942,6 @@ static int jffs2_scan_inode_node(struct
Which means that the _full_ amount of time to get to proper write mode with GC
operational may actually be _longer_ than before. Sucks to be me. */
- raw = jffs2_alloc_raw_node_ref();
- if (!raw) {
- printk(KERN_NOTICE "jffs2_scan_inode_node(): allocation of node reference failed\n");
- return -ENOMEM;
- }
-
ic = jffs2_get_ino_cache(c, ino);
if (!ic) {
/* Inocache get failed. Either we read a bogus ino# or it's just genuinely the
@@ -988,21 +955,15 @@ static int jffs2_scan_inode_node(struct
/* We believe totlen because the CRC on the node _header_ was OK, just the node itself failed. */
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(ri->totlen)))))
return err;
- jffs2_free_raw_node_ref(raw);
return 0;
}
ic = jffs2_scan_make_ino_cache(c, ino);
- if (!ic) {
- jffs2_free_raw_node_ref(raw);
+ if (!ic)
return -ENOMEM;
- }
}
/* Wheee. It worked */
-
- raw->flash_offset = ofs | REF_UNCHECKED;
-
- jffs2_link_node_ref(c, jeb, raw, PAD(je32_to_cpu(ri->totlen)), ic);
+ jffs2_link_node_ref(c, jeb, ofs | REF_UNCHECKED, PAD(je32_to_cpu(ri->totlen)), ic);
D1(printk(KERN_DEBUG "Node is ino #%u, version %d. Range 0x%x-0x%x\n",
je32_to_cpu(ri->ino), je32_to_cpu(ri->version),
@@ -1021,7 +982,6 @@ static int jffs2_scan_inode_node(struct
static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
struct jffs2_raw_dirent *rd, uint32_t ofs, struct jffs2_summary *s)
{
- struct jffs2_raw_node_ref *raw;
struct jffs2_full_dirent *fd;
struct jffs2_inode_cache *ic;
uint32_t crc;
@@ -1063,23 +1023,14 @@ static int jffs2_scan_dirent_node(struct
return err;
return 0;
}
- raw = jffs2_alloc_raw_node_ref();
- if (!raw) {
- jffs2_free_full_dirent(fd);
- printk(KERN_NOTICE "jffs2_scan_dirent_node(): allocation of node reference failed\n");
- return -ENOMEM;
- }
ic = jffs2_scan_make_ino_cache(c, je32_to_cpu(rd->pino));
if (!ic) {
jffs2_free_full_dirent(fd);
- jffs2_free_raw_node_ref(raw);
return -ENOMEM;
}
- raw->flash_offset = ofs | REF_PRISTINE;
- jffs2_link_node_ref(c, jeb, raw, PAD(je32_to_cpu(rd->totlen)), ic);
+ fd->raw = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(rd->totlen)), ic);
- fd->raw = raw;
fd->next = NULL;
fd->version = je32_to_cpu(rd->version);
fd->ino = je32_to_cpu(rd->ino);
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index 351ba9f..ccb6803 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -369,22 +369,18 @@ no_mem:
return -ENOMEM;
}
-static struct jffs2_raw_node_ref *alloc_ref_at(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
- uint32_t offset)
+static struct jffs2_raw_node_ref *sum_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;
/* If there was a gap, mark it dirty */
- if (offset > c->sector_size - jeb->free_size) {
- int ret = jffs2_scan_dirty_space(c, jeb, offset - (c->sector_size - jeb->free_size));
- if (ret)
- return NULL;
+ if ((ofs & ~3) > c->sector_size - jeb->free_size) {
+ /* Ew. Summary doesn't actually tell us explicitly about dirty space */
+ jffs2_scan_dirty_space(c, jeb, (ofs & ~3) - (c->sector_size - jeb->free_size));
}
- ref = jffs2_alloc_raw_node_ref();
- if (!ref)
- return NULL;
- ref->flash_offset = jeb->offset + offset;
- return ref;
+ return jffs2_link_node_ref(c, jeb, jeb->offset + ofs, len, ic);
}
/* Process the stored summary information - helper function for jffs2_sum_scan_sumnode() */
@@ -392,7 +388,6 @@ static struct jffs2_raw_node_ref *alloc_
static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
struct jffs2_raw_summary *summary, uint32_t *pseudo_random)
{
- struct jffs2_raw_node_ref *raw;
struct jffs2_inode_cache *ic;
struct jffs2_full_dirent *fd;
void *sp;
@@ -404,6 +399,11 @@ static int jffs2_sum_process_sum_data(st
for (i=0; i<je32_to_cpu(summary->sum_num); i++) {
dbg_summary("processing summary index %d\n", i);
+ /* Make sure there's a spare ref for dirty space */
+ err = jffs2_prealloc_raw_node_refs(c, 2);
+ if (err)
+ return err;
+
switch (je16_to_cpu(((struct jffs2_sum_unknown_flash *)sp)->nodetype)) {
case JFFS2_NODETYPE_INODE: {
struct jffs2_sum_inode_flash *spi;
@@ -415,22 +415,14 @@ static int jffs2_sum_process_sum_data(st
jeb->offset + je32_to_cpu(spi->offset),
jeb->offset + je32_to_cpu(spi->offset) + je32_to_cpu(spu->totlen));
- raw = alloc_ref_at(c, jeb, je32_to_cpu(spi->offset));
- if (!raw) {
- JFFS2_NOTICE("allocation of node reference failed\n");
- return -ENOMEM;
- }
-
ic = jffs2_scan_make_ino_cache(c, ino);
if (!ic) {
JFFS2_NOTICE("scan_make_ino_cache failed\n");
- jffs2_free_raw_node_ref(raw);
return -ENOMEM;
}
- raw->flash_offset |= REF_UNCHECKED;
-
- jffs2_link_node_ref(c, jeb, raw, PAD(je32_to_cpu(spi->totlen)), ic);
+ sum_link_node_ref(c, jeb, je32_to_cpu(spi->offset) | REF_UNCHECKED,
+ PAD(je32_to_cpu(spi->totlen)), ic);
*pseudo_random += je32_to_cpu(spi->version);
@@ -455,24 +447,15 @@ static int jffs2_sum_process_sum_data(st
memcpy(&fd->name, spd->name, spd->nsize);
fd->name[spd->nsize] = 0;
- raw = alloc_ref_at(c, jeb, je32_to_cpu(spd->offset));
- if (!raw) {
- jffs2_free_full_dirent(fd);
- JFFS2_NOTICE("allocation of node reference failed\n");
- return -ENOMEM;
- }
-
ic = jffs2_scan_make_ino_cache(c, je32_to_cpu(spd->pino));
if (!ic) {
jffs2_free_full_dirent(fd);
- jffs2_free_raw_node_ref(raw);
return -ENOMEM;
}
- raw->flash_offset |= REF_PRISTINE;
- jffs2_link_node_ref(c, jeb, raw, PAD(je32_to_cpu(spd->totlen)), ic);
+ fd->raw = sum_link_node_ref(c, jeb, je32_to_cpu(spd->offset) | REF_PRISTINE,
+ PAD(je32_to_cpu(spd->totlen)), ic);
- fd->raw = raw;
fd->next = NULL;
fd->version = je32_to_cpu(spd->version);
fd->ino = je32_to_cpu(spd->ino);
@@ -497,15 +480,10 @@ #ifdef CONFIG_JFFS2_FS_XATTR
jeb->offset + je32_to_cpu(spx->offset),
jeb->offset + je32_to_cpu(spx->offset) + je32_to_cpu(spx->totlen),
je32_to_cpu(spx->xid), je32_to_cpu(spx->version));
- raw = alloc_ref_at(c, jeb, je32_to_cpu(spx->offset));
- if (!raw) {
- JFFS2_NOTICE("allocation of node reference failed\n");
- return -ENOMEM;
- }
+
xd = jffs2_setup_xattr_datum(c, je32_to_cpu(spx->xid),
je32_to_cpu(spx->version));
if (IS_ERR(xd)) {
- jffs2_free_raw_node_ref(raw);
if (PTR_ERR(xd) == -EEXIST) {
/* a newer version of xd exists */
if ((err = jffs2_scan_dirty_space(c, jeb, je32_to_cpu(spx->totlen))))
@@ -516,12 +494,10 @@ #ifdef CONFIG_JFFS2_FS_XATTR
JFFS2_NOTICE("allocation of xattr_datum failed\n");
return PTR_ERR(xd);
}
- xd->node = raw;
- raw->flash_offset |= REF_UNCHECKED;
-
- jffs2_link_node_ref(c, jeb, raw, PAD(je32_to_cpu(spx->totlen)), NULL);
- /* FIXME */ raw->next_in_ino = (void *)xd;
+ xd->node = sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
+ PAD(je32_to_cpu(spx->totlen)), NULL);
+ /* FIXME */ xd->node->next_in_ino = (void *)xd;
*pseudo_random += je32_to_cpu(spx->xid);
sp += JFFS2_SUMMARY_XATTR_SIZE;
@@ -537,29 +513,21 @@ #ifdef CONFIG_JFFS2_FS_XATTR
jeb->offset + je32_to_cpu(spr->offset),
jeb->offset + je32_to_cpu(spr->offset) + PAD(sizeof(struct jffs2_raw_xref)));
- raw = alloc_ref_at(c, jeb, je32_to_cpu(spr->offset));
- if (!raw) {
- JFFS2_NOTICE("allocation of node reference failed\n");
- return -ENOMEM;
- }
ref = jffs2_alloc_xattr_ref();
if (!ref) {
JFFS2_NOTICE("allocation of xattr_datum failed\n");
- jffs2_free_raw_node_ref(raw);
return -ENOMEM;
}
ref->ino = 0xfffffffe;
ref->xid = 0xfffffffd;
- ref->node = raw;
ref->next = c->xref_temp;
c->xref_temp = ref;
- raw->flash_offset |= REF_UNCHECKED;
+ ref->node = sum_link_node_ref(c, jeb, je32_to_cpu(spr->offset) | REF_UNCHECKED,
+ PAD(sizeof(struct jffs2_raw_xref)), NULL);
+ /* FIXME */ ref->node->next_in_ino = (void *)ref;
- jffs2_link_node_ref(c, jeb, raw, PAD(sizeof(struct jffs2_raw_xref)), NULL);
- /* FIXME */ raw->next_in_ino = (void *)ref;
-
- *pseudo_random += raw->flash_offset;
+ *pseudo_random += ref->node->flash_offset;
sp += JFFS2_SUMMARY_XREF_SIZE;
break;
@@ -584,7 +552,6 @@ #endif
}
}
}
-
return 0;
}
@@ -594,7 +561,6 @@ int jffs2_sum_scan_sumnode(struct jffs2_
uint32_t *pseudo_random)
{
struct jffs2_unknown_node crcnode;
- struct jffs2_raw_node_ref *cache_ref;
int ret, ofs;
uint32_t crc;
int err;
@@ -650,16 +616,8 @@ int jffs2_sum_scan_sumnode(struct jffs2_
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(summary->cln_mkr)))))
return err;
} else {
- struct jffs2_raw_node_ref *marker_ref = jffs2_alloc_raw_node_ref();
-
- if (!marker_ref) {
- JFFS2_NOTICE("Failed to allocate node ref for clean marker\n");
- return -ENOMEM;
- }
-
- marker_ref->flash_offset = jeb->offset | REF_NORMAL;
-
- jffs2_link_node_ref(c, jeb, marker_ref, je32_to_cpu(summary->cln_mkr), NULL);
+ jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL,
+ je32_to_cpu(summary->cln_mkr), NULL);
}
}
@@ -672,16 +630,11 @@ int jffs2_sum_scan_sumnode(struct jffs2_
return ret; /* real error */
/* for PARANOIA_CHECK */
- cache_ref = alloc_ref_at(c, jeb, ofs);
-
- if (!cache_ref) {
- JFFS2_NOTICE("Failed to allocate node ref for cache\n");
- return -ENOMEM;
- }
-
- cache_ref->flash_offset |= REF_NORMAL;
+ ret = jffs2_prealloc_raw_node_refs(c, 1);
+ if (ret)
+ return ret;
- jffs2_link_node_ref(c, jeb, cache_ref, sumsize, NULL);
+ jffs2_link_node_ref(c, jeb, (jeb->offset + ofs) | REF_NORMAL, sumsize, NULL);
if (unlikely(jeb->free_size)) {
JFFS2_WARNING("Free size 0x%x bytes in eraseblock @0x%08x with summary?\n",
@@ -709,6 +662,7 @@ static int jffs2_sum_write_data(struct j
union jffs2_sum_mem *temp;
struct jffs2_sum_marker *sm;
struct kvec vecs[2];
+ uint32_t sum_ofs;
void *wpage;
int ret;
size_t retlen;
@@ -821,36 +775,31 @@ #endif
vecs[1].iov_base = c->summary->sum_buf;
vecs[1].iov_len = datasize;
+ sum_ofs = jeb->offset + c->sector_size - jeb->free_size;
+
dbg_summary("JFFS2: writing out data to flash to pos : 0x%08x\n",
- jeb->offset + c->sector_size - jeb->free_size);
+ sum_ofs);
- spin_unlock(&c->erase_completion_lock);
- ret = jffs2_flash_writev(c, vecs, 2, jeb->offset + c->sector_size -
- jeb->free_size, &retlen, 0);
+ ret = jffs2_flash_writev(c, vecs, 2, sum_ofs, &retlen, 0);
if (ret || (retlen != infosize)) {
- struct jffs2_raw_node_ref *ref;
JFFS2_WARNING("Write of %u bytes at 0x%08x failed. returned %d, retlen %zd\n",
- infosize, jeb->offset + c->sector_size - jeb->free_size, ret, retlen);
+ infosize, sum_ofs, ret, retlen);
/* Waste remaining space */
- ref = jffs2_alloc_raw_node_ref();
- if (ref) {
- spin_lock(&c->erase_completion_lock);
-
- ref->flash_offset = jeb->offset + c->sector_size - jeb->free_size;
- ref->flash_offset |= REF_OBSOLETE;
-
- jffs2_link_node_ref(c, jeb, ref, c->sector_size - jeb->free_size, NULL);
- }
+ spin_lock(&c->erase_completion_lock);
+ jffs2_link_node_ref(c, jeb, sum_ofs | REF_OBSOLETE, infosize, NULL);
+ spin_unlock(&c->erase_completion_lock);
c->summary->sum_size = JFFS2_SUMMARY_NOSUM_SIZE;
- return 1;
+ return 0;
}
spin_lock(&c->erase_completion_lock);
+ jffs2_link_node_ref(c, jeb, sum_ofs | REF_NORMAL, infosize, NULL);
+ spin_unlock(&c->erase_completion_lock);
return 0;
}
@@ -859,12 +808,15 @@ #endif
int jffs2_sum_write_sumnode(struct jffs2_sb_info *c)
{
- struct jffs2_raw_node_ref *summary_ref;
- int datasize, infosize, padsize, ret;
+ int datasize, infosize, padsize;
struct jffs2_eraseblock *jeb;
+ int ret;
dbg_summary("called\n");
+ spin_unlock(&c->erase_completion_lock);
+ jffs2_prealloc_raw_node_refs(c, 1);
+
jeb = c->nextblock;
if (!c->summary->sum_num || !c->summary->sum_list_head) {
@@ -888,22 +840,6 @@ int jffs2_sum_write_sumnode(struct jffs2
}
ret = jffs2_sum_write_data(c, jeb, infosize, datasize, padsize);
- if (ret)
- return 0; /* can't write out summary, block is marked as NOSUM_SIZE */
-
- /* for ACCT_PARANOIA_CHECK */
- spin_unlock(&c->erase_completion_lock);
- summary_ref = jffs2_alloc_raw_node_ref();
-
- if (!summary_ref) {
- JFFS2_NOTICE("Failed to allocate node ref for summary\n");
- return -ENOMEM;
- }
-
- summary_ref->flash_offset = (jeb->offset + c->sector_size - jeb->free_size) | REF_NORMAL;
-
spin_lock(&c->erase_completion_lock);
- jffs2_link_node_ref(c, jeb, summary_ref, infosize, NULL);
-
- return 0;
+ return ret;
}
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 916c87d..0d7abb2 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -179,6 +179,9 @@ static void jffs2_wbuf_recover(struct jf
unsigned char *buf;
uint32_t start, end, ofs, len;
+ if (jffs2_prealloc_raw_node_refs(c, c->reserved_refs + 1))
+ return;
+
spin_lock(&c->erase_completion_lock);
jeb = &c->blocks[c->wbuf_ofs / c->sector_size];
@@ -306,17 +309,9 @@ #endif
printk(KERN_CRIT "Recovery of wbuf failed due to a second write error\n");
kfree(buf);
- if (retlen) {
- struct jffs2_raw_node_ref *raw2;
-
- raw2 = jffs2_alloc_raw_node_ref();
- if (!raw2)
- return;
-
- raw2->flash_offset = ofs | REF_OBSOLETE;
+ if (retlen)
+ jffs2_add_physical_node_ref(c, ofs | REF_OBSOLETE, ref_totlen(c, jeb, *first_raw), NULL);
- jffs2_add_physical_node_ref(c, raw2, ref_totlen(c, jeb, *first_raw), NULL);
- }
return;
}
printk(KERN_NOTICE "Recovery of wbuf succeeded to %08x\n", ofs);
@@ -428,6 +423,9 @@ static int __jffs2_flush_wbuf(struct jff
if (!c->wbuf_len) /* already checked c->wbuf above */
return 0;
+ if (jffs2_prealloc_raw_node_refs(c, c->reserved_refs + 1))
+ return -ENOMEM;
+
/* claim remaining space on the page
this happens, if we have a change to a new block,
or if fsync forces us to flush the writebuffer.
@@ -485,7 +483,6 @@ #endif
/* Adjust free size of the block if we padded. */
if (pad) {
struct jffs2_eraseblock *jeb;
- struct jffs2_raw_node_ref *ref;
uint32_t waste = c->wbuf_pagesize - c->wbuf_len;
jeb = &c->blocks[c->wbuf_ofs / c->sector_size];
@@ -503,15 +500,10 @@ #endif
jeb->offset, jeb->free_size);
BUG();
}
- ref = jffs2_alloc_raw_node_ref();
- if (!ref)
- return -ENOMEM;
- ref->flash_offset = c->wbuf_ofs + c->wbuf_len;
- ref->flash_offset |= REF_OBSOLETE;
spin_lock(&c->erase_completion_lock);
- jffs2_link_node_ref(c, jeb, ref, waste, NULL);
+ jffs2_link_node_ref(c, jeb, (c->wbuf_ofs + c->wbuf_len) | REF_OBSOLETE, waste, NULL);
/* FIXME: that made it count as dirty. Convert to wasted */
jeb->dirty_size -= waste;
c->dirty_size -= waste;
diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c
index 0e12b75..6717679 100644
--- a/fs/jffs2/write.c
+++ b/fs/jffs2/write.c
@@ -61,7 +61,6 @@ struct jffs2_full_dnode *jffs2_write_dno
uint32_t datalen, int alloc_mode)
{
- struct jffs2_raw_node_ref *raw;
struct jffs2_full_dnode *fn;
size_t retlen;
uint32_t flash_ofs;
@@ -83,27 +82,16 @@ struct jffs2_full_dnode *jffs2_write_dno
if (je32_to_cpu(ri->totlen) != sizeof(*ri) + datalen) {
printk(KERN_WARNING "jffs2_write_dnode: ri->totlen (0x%08x) != sizeof(*ri) (0x%08zx) + datalen (0x%08x)\n", je32_to_cpu(ri->totlen), sizeof(*ri), datalen);
}
- raw = jffs2_alloc_raw_node_ref();
- if (!raw)
- return ERR_PTR(-ENOMEM);
fn = jffs2_alloc_full_dnode();
- if (!fn) {
- jffs2_free_raw_node_ref(raw);
+ if (!fn)
return ERR_PTR(-ENOMEM);
- }
-
- fn->ofs = je32_to_cpu(ri->offset);
- fn->size = je32_to_cpu(ri->dsize);
- fn->frags = 0;
/* check number of valid vecs */
if (!datalen || !data)
cnt = 1;
retry:
- fn->raw = raw;
-
- raw->flash_offset = flash_ofs = write_ofs(c);
+ flash_ofs = write_ofs(c);
jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
@@ -130,14 +118,11 @@ struct jffs2_full_dnode *jffs2_write_dno
seem corrupted, in which case the scan would skip over
any node we write before the original intended end of
this node */
- raw->flash_offset |= REF_OBSOLETE;
- jffs2_add_physical_node_ref(c, raw, PAD(sizeof(*ri)+datalen), NULL);
- jffs2_mark_node_obsolete(c, raw);
+ jffs2_add_physical_node_ref(c, flash_ofs | REF_OBSOLETE, PAD(sizeof(*ri)+datalen), NULL);
} else {
- printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
- jffs2_free_raw_node_ref(raw);
+ printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", flash_ofs);
}
- if (!retried && alloc_mode != ALLOC_NORETRY && (raw = jffs2_alloc_raw_node_ref())) {
+ if (!retried && alloc_mode != ALLOC_NORETRY) {
/* Try to reallocate space and retry */
uint32_t dummy;
struct jffs2_eraseblock *jeb = &c->blocks[flash_ofs / c->sector_size];
@@ -172,7 +157,6 @@ struct jffs2_full_dnode *jffs2_write_dno
goto retry;
}
D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
- jffs2_free_raw_node_ref(raw);
}
/* Release the full_dnode which is now useless, and return */
jffs2_free_full_dnode(fn);
@@ -186,14 +170,17 @@ struct jffs2_full_dnode *jffs2_write_dno
if ((je32_to_cpu(ri->dsize) >= PAGE_CACHE_SIZE) ||
( ((je32_to_cpu(ri->offset)&(PAGE_CACHE_SIZE-1))==0) &&
(je32_to_cpu(ri->dsize)+je32_to_cpu(ri->offset) == je32_to_cpu(ri->isize)))) {
- raw->flash_offset |= REF_PRISTINE;
+ flash_ofs |= REF_PRISTINE;
} else {
- raw->flash_offset |= REF_NORMAL;
+ flash_ofs |= REF_NORMAL;
}
- jffs2_add_physical_node_ref(c, raw, PAD(sizeof(*ri)+datalen), f->inocache);
+ fn->raw = jffs2_add_physical_node_ref(c, flash_ofs, PAD(sizeof(*ri)+datalen), f->inocache);
+ fn->ofs = je32_to_cpu(ri->offset);
+ fn->size = je32_to_cpu(ri->dsize);
+ fn->frags = 0;
D1(printk(KERN_DEBUG "jffs2_write_dnode wrote node at 0x%08x(%d) with dsize 0x%x, csize 0x%x, node_crc 0x%08x, data_crc 0x%08x, totlen 0x%08x\n",
- flash_ofs, ref_flags(raw), je32_to_cpu(ri->dsize),
+ flash_ofs & ~3, flash_ofs & 3, je32_to_cpu(ri->dsize),
je32_to_cpu(ri->csize), je32_to_cpu(ri->node_crc),
je32_to_cpu(ri->data_crc), je32_to_cpu(ri->totlen)));
@@ -208,11 +195,10 @@ struct jffs2_full_dirent *jffs2_write_di
struct jffs2_raw_dirent *rd, const unsigned char *name,
uint32_t namelen, int alloc_mode)
{
- struct jffs2_raw_node_ref *raw;
struct jffs2_full_dirent *fd;
size_t retlen;
struct kvec vecs[2];
- uint32_t flash_ofs = write_ofs(c);
+ uint32_t flash_ofs;
int retried = 0;
int ret;
@@ -223,26 +209,16 @@ struct jffs2_full_dirent *jffs2_write_di
D1(if(je32_to_cpu(rd->hdr_crc) != crc32(0, rd, sizeof(struct jffs2_unknown_node)-4)) {
printk(KERN_CRIT "Eep. CRC not correct in jffs2_write_dirent()\n");
BUG();
- }
- );
+ });
vecs[0].iov_base = rd;
vecs[0].iov_len = sizeof(*rd);
vecs[1].iov_base = (unsigned char *)name;
vecs[1].iov_len = namelen;
- jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
-
- raw = jffs2_alloc_raw_node_ref();
-
- if (!raw)
- return ERR_PTR(-ENOMEM);
-
fd = jffs2_alloc_full_dirent(namelen+1);
- if (!fd) {
- jffs2_free_raw_node_ref(raw);
+ if (!fd)
return ERR_PTR(-ENOMEM);
- }
fd->version = je32_to_cpu(rd->version);
fd->ino = je32_to_cpu(rd->ino);
@@ -252,9 +228,9 @@ struct jffs2_full_dirent *jffs2_write_di
fd->name[namelen]=0;
retry:
- fd->raw = raw;
+ flash_ofs = write_ofs(c);
- raw->flash_offset = flash_ofs;
+ jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
if ((alloc_mode!=ALLOC_GC) && (je32_to_cpu(rd->version) < f->highest_version)) {
BUG_ON(!retried);
@@ -273,14 +249,11 @@ struct jffs2_full_dirent *jffs2_write_di
sizeof(*rd)+namelen, flash_ofs, ret, retlen);
/* Mark the space as dirtied */
if (retlen) {
- raw->flash_offset |= REF_OBSOLETE;
- jffs2_add_physical_node_ref(c, raw, PAD(sizeof(*rd)+namelen), NULL);
- jffs2_mark_node_obsolete(c, raw);
+ jffs2_add_physical_node_ref(c, flash_ofs | REF_OBSOLETE, PAD(sizeof(*rd)+namelen), NULL);
} else {
- printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", raw->flash_offset);
- jffs2_free_raw_node_ref(raw);
+ printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", flash_ofs);
}
- if (!retried && (raw = jffs2_alloc_raw_node_ref())) {
+ if (!retried) {
/* Try to reallocate space and retry */
uint32_t dummy;
struct jffs2_eraseblock *jeb = &c->blocks[flash_ofs / c->sector_size];
@@ -313,15 +286,13 @@ struct jffs2_full_dirent *jffs2_write_di
goto retry;
}
D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
- jffs2_free_raw_node_ref(raw);
}
/* Release the full_dnode which is now useless, and return */
jffs2_free_full_dirent(fd);
return ERR_PTR(ret?ret:-EIO);
}
/* Mark the space used */
- raw->flash_offset |= REF_PRISTINE;
- jffs2_add_physical_node_ref(c, raw, PAD(sizeof(*rd)+namelen), f->inocache);
+ fd->raw = jffs2_add_physical_node_ref(c, flash_ofs | REF_PRISTINE, PAD(sizeof(*rd)+namelen), f->inocache);
if (retried) {
jffs2_dbg_acct_sanity_check(c,NULL);
diff --git a/fs/jffs2/xattr.c b/fs/jffs2/xattr.c
index 008f91b..2255f13 100644
--- a/fs/jffs2/xattr.c
+++ b/fs/jffs2/xattr.c
@@ -304,8 +304,8 @@ static int load_xattr_datum(struct jffs2
static int save_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd)
{
/* must be called under down_write(xattr_sem) */
- struct jffs2_raw_xattr rx;
struct jffs2_raw_node_ref *raw;
+ struct jffs2_raw_xattr rx;
struct kvec vecs[2];
uint32_t length;
int rc, totlen;
@@ -319,11 +319,6 @@ static int save_xattr_datum(struct jffs2
vecs[1].iov_len = xd->name_len + 1 + xd->value_len;
totlen = vecs[0].iov_len + vecs[1].iov_len;
- raw = jffs2_alloc_raw_node_ref();
- if (!raw)
- return -ENOMEM;
- raw->flash_offset = phys_ofs;
-
/* Setup raw-xattr */
rx.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rx.nodetype = cpu_to_je16(JFFS2_NODETYPE_XATTR);
@@ -343,19 +338,14 @@ static int save_xattr_datum(struct jffs2
JFFS2_WARNING("jffs2_flash_writev()=%d, req=%u, wrote=%u, at %#08x\n",
rc, totlen, length, phys_ofs);
rc = rc ? rc : -EIO;
- if (length) {
- raw->flash_offset |= REF_OBSOLETE;
- jffs2_add_physical_node_ref(c, raw, PAD(totlen), NULL);
- jffs2_mark_node_obsolete(c, raw);
- } else {
- jffs2_free_raw_node_ref(raw);
- }
+ if (length)
+ jffs2_add_physical_node_ref(c, phys_ofs | REF_OBSOLETE, PAD(totlen), NULL);
+
return rc;
}
/* success */
- raw->flash_offset |= REF_PRISTINE;
- jffs2_add_physical_node_ref(c, raw, PAD(totlen), NULL);
+ raw = jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, PAD(totlen), NULL);
/* FIXME */ raw->next_in_ino = (void *)xd;
if (xd->node)
@@ -563,11 +553,6 @@ static int save_xattr_ref(struct jffs2_s
uint32_t phys_ofs = write_ofs(c);
int ret;
- raw = jffs2_alloc_raw_node_ref();
- if (!raw)
- return -ENOMEM;
- raw->flash_offset = phys_ofs;
-
rr.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rr.nodetype = cpu_to_je16(JFFS2_NODETYPE_XREF);
rr.totlen = cpu_to_je32(PAD(sizeof(rr)));
@@ -582,18 +567,13 @@ static int save_xattr_ref(struct jffs2_s
JFFS2_WARNING("jffs2_flash_write() returned %d, request=%u, retlen=%u, at %#08x\n",
ret, sizeof(rr), length, phys_ofs);
ret = ret ? ret : -EIO;
- if (length) {
- raw->flash_offset |= REF_OBSOLETE;
- jffs2_add_physical_node_ref(c, raw, PAD(sizeof(rr)), NULL);
- jffs2_mark_node_obsolete(c, raw);
- } else {
- jffs2_free_raw_node_ref(raw);
- }
+ if (length)
+ jffs2_add_physical_node_ref(c, phys_ofs | REF_OBSOLETE, PAD(sizeof(rr)), NULL);
+
return ret;
}
- raw->flash_offset |= REF_PRISTINE;
- jffs2_add_physical_node_ref(c, raw, PAD(sizeof(rr)), NULL);
+ raw = jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, PAD(sizeof(rr)), NULL);
/* FIXME */ raw->next_in_ino = (void *)ref;
if (ref->node)
delete_xattr_ref_node(c, ref);
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