[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>
This commit is contained in:
David Woodhouse
Родитель
4cbb9b80e1
Коммит
2f785402f3
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@ -296,7 +296,7 @@ void jffs2_free_all_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *
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jffs2_remove_node_refs_from_ino_list(c, ref, jeb);
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/* else it was a non-inode node or already removed, so don't bother */
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jffs2_free_raw_node_ref(ref);
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__jffs2_free_raw_node_ref(ref);
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}
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jeb->last_node = NULL;
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}
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@ -351,7 +351,6 @@ fail:
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static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
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{
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struct jffs2_raw_node_ref *marker_ref = NULL;
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size_t retlen;
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int ret;
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uint32_t bad_offset;
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@ -384,11 +383,7 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
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.totlen = cpu_to_je32(c->cleanmarker_size)
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};
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marker_ref = jffs2_alloc_raw_node_ref();
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if (!marker_ref) {
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printk(KERN_WARNING "Failed to allocate raw node ref for clean marker. Refiling\n");
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goto refile;
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}
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jffs2_prealloc_raw_node_refs(c, 1);
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marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4));
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@ -404,16 +399,13 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
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printk(KERN_WARNING "Short write to newly-erased block at 0x%08x: Wanted %zd, got %zd\n",
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jeb->offset, sizeof(marker), retlen);
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jffs2_free_raw_node_ref(marker_ref);
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goto filebad;
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}
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/* Everything else got zeroed before the erase */
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jeb->free_size = c->sector_size;
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marker_ref->flash_offset = jeb->offset | REF_NORMAL;
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jffs2_link_node_ref(c, jeb, marker_ref, c->cleanmarker_size, NULL);
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/* FIXME Special case for cleanmarker in empty block */
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jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL);
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}
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spin_lock(&c->erase_completion_lock);
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@ -528,7 +528,6 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
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struct jffs2_raw_node_ref *raw)
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{
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union jffs2_node_union *node;
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struct jffs2_raw_node_ref *nraw;
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size_t retlen;
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int ret;
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uint32_t phys_ofs, alloclen;
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@ -618,30 +617,21 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
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}
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}
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nraw = jffs2_alloc_raw_node_ref();
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if (!nraw) {
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ret = -ENOMEM;
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goto out_node;
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}
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/* OK, all the CRCs are good; this node can just be copied as-is. */
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retry:
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nraw->flash_offset = phys_ofs = write_ofs(c);
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phys_ofs = write_ofs(c);
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ret = jffs2_flash_write(c, phys_ofs, rawlen, &retlen, (char *)node);
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if (ret || (retlen != rawlen)) {
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printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n",
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rawlen, nraw->flash_offset, ret, retlen);
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rawlen, phys_ofs, ret, retlen);
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if (retlen) {
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nraw->flash_offset |= REF_OBSOLETE;
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jffs2_add_physical_node_ref(c, nraw, rawlen, NULL);
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jffs2_mark_node_obsolete(c, nraw);
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jffs2_add_physical_node_ref(c, phys_ofs | REF_OBSOLETE, rawlen, NULL);
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} else {
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printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", nraw->flash_offset);
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jffs2_free_raw_node_ref(nraw);
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printk(KERN_NOTICE "Not marking the space at 0x%08x as dirty because the flash driver returned retlen zero\n", phys_ofs);
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}
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if (!retried && (nraw = jffs2_alloc_raw_node_ref())) {
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if (!retried) {
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/* Try to reallocate space and retry */
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uint32_t dummy;
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struct jffs2_eraseblock *jeb = &c->blocks[phys_ofs / c->sector_size];
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@ -666,16 +656,13 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
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goto retry;
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}
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D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
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jffs2_free_raw_node_ref(nraw);
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}
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jffs2_free_raw_node_ref(nraw);
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if (!ret)
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ret = -EIO;
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goto out_node;
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}
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nraw->flash_offset |= REF_PRISTINE;
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jffs2_add_physical_node_ref(c, nraw, rawlen, ic);
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jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, rawlen, ic);
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jffs2_mark_node_obsolete(c, raw);
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D1(printk(KERN_DEBUG "WHEEE! GC REF_PRISTINE node at 0x%08x succeeded\n", ref_offset(raw)));
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@ -26,6 +26,9 @@ struct jffs2_inodirty;
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struct jffs2_sb_info {
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struct mtd_info *mtd;
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struct jffs2_raw_node_ref *refs;
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int reserved_refs;
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uint32_t highest_ino;
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uint32_t checked_ino;
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@ -190,7 +190,29 @@ void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
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kmem_cache_free(tmp_dnode_info_slab, x);
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}
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struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
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int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, int nr)
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{
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struct jffs2_raw_node_ref *p = c->refs;
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dbg_memalloc("%d\n", nr);
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while (nr && p) {
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p = p->next_in_ino;
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nr--;
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}
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while (nr) {
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p = __jffs2_alloc_raw_node_ref();
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if (!p)
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return -ENOMEM;
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p->next_in_ino = c->refs;
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c->refs = p;
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nr--;
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}
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c->reserved_refs = nr;
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return 0;
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}
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struct jffs2_raw_node_ref *__jffs2_alloc_raw_node_ref(void)
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{
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struct jffs2_raw_node_ref *ret;
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ret = kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
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@ -198,7 +220,7 @@ struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
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return ret;
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}
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void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
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void __jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
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{
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dbg_memalloc("%p\n", x);
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kmem_cache_free(raw_node_ref_slab, x);
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@ -953,13 +953,19 @@ void jffs2_free_raw_node_refs(struct jffs2_sb_info *c)
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for (i=0; i<c->nr_blocks; i++) {
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this = c->blocks[i].first_node;
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while(this) {
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while (this) {
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next = this->next_phys;
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jffs2_free_raw_node_ref(this);
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__jffs2_free_raw_node_ref(this);
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this = next;
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}
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c->blocks[i].first_node = c->blocks[i].last_node = NULL;
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}
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this = c->refs;
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while (this) {
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next = this->next_in_ino;
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__jffs2_free_raw_node_ref(this);
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this = next;
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}
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}
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struct jffs2_node_frag *jffs2_lookup_node_frag(struct rb_root *fragtree, uint32_t offset)
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@ -1047,10 +1053,27 @@ void jffs2_kill_fragtree(struct rb_root *root, struct jffs2_sb_info *c)
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}
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}
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void jffs2_link_node_ref(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
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struct jffs2_raw_node_ref *ref, uint32_t len,
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struct jffs2_inode_cache *ic)
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struct jffs2_raw_node_ref *jffs2_link_node_ref(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb,
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uint32_t ofs, uint32_t len,
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struct jffs2_inode_cache *ic)
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{
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struct jffs2_raw_node_ref *ref;
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/* These will be preallocated _very_ shortly. */
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ref = c->refs;
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if (!c->refs) {
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JFFS2_WARNING("Using non-preallocated refs!\n");
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ref = __jffs2_alloc_raw_node_ref();
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BUG_ON(!ref);
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WARN_ON(1);
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} else {
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c->refs = ref->next_in_ino;
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}
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ref->next_phys = NULL;
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ref->flash_offset = ofs;
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if (!jeb->first_node)
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jeb->first_node = ref;
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if (jeb->last_node) {
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@ -1093,15 +1116,15 @@ void jffs2_link_node_ref(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
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c->free_size -= len;
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jeb->free_size -= len;
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ref->next_phys = NULL;
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#ifdef TEST_TOTLEN
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/* Set (and test) __totlen field... for now */
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ref->__totlen = len;
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ref_totlen(c, jeb, ref);
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#endif
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return ref;
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}
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/* No locking. Do not use on a live file system */
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/* No locking, no reservation of 'ref'. Do not use on a live file system */
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int jffs2_scan_dirty_space(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
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uint32_t size)
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{
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@ -1121,18 +1144,10 @@ int jffs2_scan_dirty_space(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
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jeb->dirty_size += size;
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jeb->free_size -= size;
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} else {
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struct jffs2_raw_node_ref *ref;
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ref = jffs2_alloc_raw_node_ref();
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if (!ref)
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return -ENOMEM;
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uint32_t ofs = jeb->offset + c->sector_size - jeb->free_size;
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ofs |= REF_OBSOLETE;
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ref->flash_offset = jeb->offset + c->sector_size - jeb->free_size;
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ref->flash_offset |= REF_OBSOLETE;
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#ifdef TEST_TOTLEN
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ref->__totlen = size;
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#endif
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jffs2_link_node_ref(c, jeb, ref, size, NULL);
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jffs2_link_node_ref(c, jeb, ofs, size, NULL);
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}
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return 0;
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@ -318,9 +318,10 @@ void jffs2_obsolete_node_frag(struct jffs2_sb_info *c, struct jffs2_node_frag *t
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int jffs2_add_full_dnode_to_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_full_dnode *fn);
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void jffs2_truncate_fragtree (struct jffs2_sb_info *c, struct rb_root *list, uint32_t size);
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int jffs2_add_older_frag_to_fragtree(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_tmp_dnode_info *tn);
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void jffs2_link_node_ref(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,
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struct jffs2_raw_node_ref *ref, uint32_t len,
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struct jffs2_inode_cache *ic);
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struct jffs2_raw_node_ref *jffs2_link_node_ref(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb,
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uint32_t ofs, uint32_t len,
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struct jffs2_inode_cache *ic);
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extern uint32_t __jffs2_ref_totlen(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb,
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struct jffs2_raw_node_ref *ref);
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@ -331,10 +332,9 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
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uint32_t *len, int prio, uint32_t sumsize);
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int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
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uint32_t *len, uint32_t sumsize);
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int jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
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struct jffs2_raw_node_ref *new,
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uint32_t len,
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struct jffs2_inode_cache *ic);
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struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
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uint32_t ofs, uint32_t len,
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struct jffs2_inode_cache *ic);
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void jffs2_complete_reservation(struct jffs2_sb_info *c);
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void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *raw);
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@ -378,8 +378,9 @@ struct jffs2_raw_inode *jffs2_alloc_raw_inode(void);
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void jffs2_free_raw_inode(struct jffs2_raw_inode *);
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struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void);
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void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *);
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struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void);
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void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
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int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c, int nr);
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struct jffs2_raw_node_ref *__jffs2_alloc_raw_node_ref(void);
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void __jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *);
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struct jffs2_node_frag *jffs2_alloc_node_frag(void);
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void jffs2_free_node_frag(struct jffs2_node_frag *);
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struct jffs2_inode_cache *jffs2_alloc_inode_cache(void);
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@ -137,6 +137,8 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
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}
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}
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spin_unlock(&c->erase_completion_lock);
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if (!ret)
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ret = jffs2_prealloc_raw_node_refs(c, 1);
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if (ret)
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up(&c->alloc_sem);
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return ret;
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@ -158,6 +160,9 @@ int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
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}
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}
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spin_unlock(&c->erase_completion_lock);
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if (!ret)
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ret = jffs2_prealloc_raw_node_refs(c, 1);
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return ret;
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}
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@ -381,30 +386,30 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
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* Must be called with the alloc_sem held.
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*/
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int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *new,
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uint32_t len, struct jffs2_inode_cache *ic)
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struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
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uint32_t ofs, uint32_t len,
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struct jffs2_inode_cache *ic)
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{
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struct jffs2_eraseblock *jeb;
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struct jffs2_raw_node_ref *new;
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jeb = &c->blocks[new->flash_offset / c->sector_size];
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#ifdef TEST_TOTLEN
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new->__totlen = len;
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#endif
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jeb = &c->blocks[ofs / c->sector_size];
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|
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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));
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D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n",
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ofs & ~3, ofs & 3, len));
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#if 1
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/* we could get some obsolete nodes after nextblock was refiled
|
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in wbuf.c */
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if ((c->nextblock || !ref_obsolete(new))
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&&(jeb != c->nextblock || ref_offset(new) != jeb->offset + (c->sector_size - jeb->free_size))) {
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/* Allow non-obsolete nodes only to be added at the end of c->nextblock,
|
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if c->nextblock is set. Note that wbuf.c will file obsolete nodes
|
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even after refiling c->nextblock */
|
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if ((c->nextblock || ((ofs & 3) != REF_OBSOLETE))
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&& (jeb != c->nextblock || (ofs & ~3) != jeb->offset + (c->sector_size - jeb->free_size))) {
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printk(KERN_WARNING "argh. node added in wrong place\n");
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jffs2_free_raw_node_ref(new);
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return -EINVAL;
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return ERR_PTR(-EINVAL);
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}
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#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);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
ret = jffs2_prealloc_raw_node_refs(c, 1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (!cache_ref) {
|
||||
JFFS2_NOTICE("Failed to allocate node ref for cache\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
cache_ref->flash_offset |= REF_NORMAL;
|
||||
|
||||
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;
|
||||
|
||||
dbg_summary("JFFS2: writing out data to flash to pos : 0x%08x\n",
|
||||
jeb->offset + c->sector_size - jeb->free_size);
|
||||
sum_ofs = jeb->offset + c->sector_size - jeb->free_size;
|
||||
|
||||
spin_unlock(&c->erase_completion_lock);
|
||||
ret = jffs2_flash_writev(c, vecs, 2, jeb->offset + c->sector_size -
|
||||
jeb->free_size, &retlen, 0);
|
||||
dbg_summary("JFFS2: writing out data to flash to pos : 0x%08x\n",
|
||||
sum_ofs);
|
||||
|
||||
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;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -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;
|
||||
if (retlen)
|
||||
jffs2_add_physical_node_ref(c, ofs | REF_OBSOLETE, ref_totlen(c, jeb, *first_raw), NULL);
|
||||
|
||||
raw2 = jffs2_alloc_raw_node_ref();
|
||||
if (!raw2)
|
||||
return;
|
||||
|
||||
raw2->flash_offset = ofs | REF_OBSOLETE;
|
||||
|
||||
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;
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче