diff options
author | David Woodhouse <dwmw2@infradead.org> | 2006-05-24 02:04:45 +0100 |
---|---|---|
committer | David Woodhouse <dwmw2@infradead.org> | 2006-05-24 02:04:45 +0100 |
commit | 2f785402f39b96a077b6e62bf26164bfb8e0c980 (patch) | |
tree | 3f3a38b484ef2dabda1599d4d8f08b121bd03a76 /fs | |
parent | 4cbb9b80e171107c6c34116283fe38e5a396c68b (diff) | |
download | op-kernel-dev-2f785402f39b96a077b6e62bf26164bfb8e0c980.zip op-kernel-dev-2f785402f39b96a077b6e62bf26164bfb8e0c980.tar.gz |
[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@infradead.org>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/jffs2/erase.c | 16 | ||||
-rw-r--r-- | fs/jffs2/gc.c | 25 | ||||
-rw-r--r-- | fs/jffs2/jffs2_fs_sb.h | 3 | ||||
-rw-r--r-- | fs/jffs2/malloc.c | 26 | ||||
-rw-r--r-- | fs/jffs2/nodelist.c | 51 | ||||
-rw-r--r-- | fs/jffs2/nodelist.h | 19 | ||||
-rw-r--r-- | fs/jffs2/nodemgmt.c | 39 | ||||
-rw-r--r-- | fs/jffs2/scan.c | 77 | ||||
-rw-r--r-- | fs/jffs2/summary.c | 162 | ||||
-rw-r--r-- | fs/jffs2/wbuf.c | 26 | ||||
-rw-r--r-- | fs/jffs2/write.c | 71 | ||||
-rw-r--r-- | 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 jffs2_sb_info *c, struct jffs2_eraseblock * 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(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, 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(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; } /* 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_pristine(struct jffs2_sb_info *c, 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_pristine(struct jffs2_sb_info *c, } } - 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_pristine(struct jffs2_sb_info *c, 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 jffs2_tmp_dnode_info *x) 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_raw_node_ref(void) 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 jffs2_sb_info *c) 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 *root, struct jffs2_sb_info *c) } } -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 @@ void jffs2_link_node_ref(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, 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 @@ int jffs2_scan_dirty_space(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb 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 jffs2_sb_info *c, struct jffs2_node_frag *t 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_info *c, uint32_t minsize, 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_inode(void); 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_info *c, uint32_t minsize, } } 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_sb_info *c, uint32_t minsize, } } 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 jffs2_sb_info *c, uint32_t minsize, * 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 @@ int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_r spin_unlock(&c->erase_completion_lock); - return 0; + return new; } @@ -697,7 +702,7 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref } 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 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref 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 jffs2_sb_info *c, struct jffs2_erasebloc 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 jffs2_sb_info *c, struct jffs2_erasebloc 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 jffs2_sb_info *c, struct jffs2_erasebloc 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 jffs2_sb_info *c, struct jffs2_eraseblock 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 jffs2_sb_info *c, struct jffs2_eraseblock 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 jffs2_sb_info *c, struct jffs2_eraseblock * 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 @@ scan_more: 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 @@ scan_more: 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_make_ino_cache(struct jffs2_sb_info *c, uin 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 jffs2_sb_info *c, struct jffs2_erasebloc 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 jffs2_sb_info *c, struct jffs2_erasebloc /* 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 jffs2_sb_info *c, struct jffs2_erasebloc 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 jffs2_sb_info *c, struct jffs2_eraseblo 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_ref_at(struct jffs2_sb_info *c, struct j 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(struct jffs2_sb_info *c, struct jffs2_eras 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(struct jffs2_sb_info *c, struct jffs2_eras 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(struct jffs2_sb_info *c, struct jffs2_eras 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 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras 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 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras 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 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras 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 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras } } } - return 0; } @@ -594,7 +561,6 @@ int jffs2_sum_scan_sumnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb 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_sb_info *c, struct jffs2_eraseblock *jeb 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_sb_info *c, struct jffs2_eraseblock *jeb 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 jffs2_sb_info *c, struct jffs2_eraseblock 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 @@ static int jffs2_sum_write_data(struct jffs2_sb_info *c, struct jffs2_eraseblock 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 @@ static int jffs2_sum_write_data(struct jffs2_sb_info *c, struct jffs2_eraseblock 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_sb_info *c) } 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 jffs2_sb_info *c) 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 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) 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 jffs2_sb_info *c, int pad) 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 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) /* 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 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) 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_dnode(struct jffs2_sb_info *c, struct jffs2 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_dnode(struct jffs2_sb_info *c, struct jffs2 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_dnode(struct jffs2_sb_info *c, struct jffs2 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_dnode(struct jffs2_sb_info *c, struct jffs2 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_dnode(struct jffs2_sb_info *c, struct jffs2 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_dirent(struct jffs2_sb_info *c, struct jff 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_dirent(struct jffs2_sb_info *c, struct jff 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_dirent(struct jffs2_sb_info *c, struct jff 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_dirent(struct jffs2_sb_info *c, struct jff 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_dirent(struct jffs2_sb_info *c, struct jff 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_sb_info *c, struct jffs2_xattr_datum *x 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_sb_info *c, struct jffs2_xattr_datum *x 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_sb_info *c, struct jffs2_xattr_datum *x 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_sb_info *c, struct jffs2_xattr_ref *ref) 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_sb_info *c, struct jffs2_xattr_ref *ref) 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); |