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Diffstat (limited to 'fs/jffs2/scan.c')
-rw-r--r--fs/jffs2/scan.c126
1 files changed, 74 insertions, 52 deletions
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index a06d47a688c7..b6c3d883b7d7 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -100,12 +100,13 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
(void **)&flashbuf, NULL);
if (!ret && pointlen < c->mtd->size) {
/* Don't muck about if it won't let us point to the whole flash */
- D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen));
+ jffs2_dbg(1, "MTD point returned len too short: 0x%zx\n",
+ pointlen);
mtd_unpoint(c->mtd, 0, pointlen);
flashbuf = NULL;
}
if (ret && ret != -EOPNOTSUPP)
- D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
+ jffs2_dbg(1, "MTD point failed %d\n", ret);
#endif
if (!flashbuf) {
/* For NAND it's quicker to read a whole eraseblock at a time,
@@ -115,15 +116,15 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
else
try_size = PAGE_SIZE;
- D1(printk(KERN_DEBUG "Trying to allocate readbuf of %zu "
- "bytes\n", try_size));
+ jffs2_dbg(1, "Trying to allocate readbuf of %zu "
+ "bytes\n", try_size);
flashbuf = mtd_kmalloc_up_to(c->mtd, &try_size);
if (!flashbuf)
return -ENOMEM;
- D1(printk(KERN_DEBUG "Allocated readbuf of %zu bytes\n",
- try_size));
+ jffs2_dbg(1, "Allocated readbuf of %zu bytes\n",
+ try_size);
buf_size = (uint32_t)try_size;
}
@@ -176,7 +177,8 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
c->nr_free_blocks++;
} else {
/* Dirt */
- D1(printk(KERN_DEBUG "Adding all-dirty block at 0x%08x to erase_pending_list\n", jeb->offset));
+ jffs2_dbg(1, "Adding all-dirty block at 0x%08x to erase_pending_list\n",
+ jeb->offset);
list_add(&jeb->list, &c->erase_pending_list);
c->nr_erasing_blocks++;
}
@@ -203,7 +205,8 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
}
/* update collected summary information for the current nextblock */
jffs2_sum_move_collected(c, s);
- D1(printk(KERN_DEBUG "jffs2_scan_medium(): new nextblock = 0x%08x\n", jeb->offset));
+ jffs2_dbg(1, "%s(): new nextblock = 0x%08x\n",
+ __func__, jeb->offset);
c->nextblock = jeb;
} else {
ret = file_dirty(c, jeb);
@@ -215,13 +218,15 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
case BLK_STATE_ALLDIRTY:
/* Nothing valid - not even a clean marker. Needs erasing. */
/* For now we just put it on the erasing list. We'll start the erases later */
- D1(printk(KERN_NOTICE "JFFS2: Erase block at 0x%08x is not formatted. It will be erased\n", jeb->offset));
+ jffs2_dbg(1, "JFFS2: Erase block at 0x%08x is not formatted. It will be erased\n",
+ jeb->offset);
list_add(&jeb->list, &c->erase_pending_list);
c->nr_erasing_blocks++;
break;
case BLK_STATE_BADBLOCK:
- D1(printk(KERN_NOTICE "JFFS2: Block at 0x%08x is bad\n", jeb->offset));
+ jffs2_dbg(1, "JFFS2: Block at 0x%08x is bad\n",
+ jeb->offset);
list_add(&jeb->list, &c->bad_list);
c->bad_size += c->sector_size;
c->free_size -= c->sector_size;
@@ -248,8 +253,8 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
uint32_t skip = c->nextblock->free_size % c->wbuf_pagesize;
- D1(printk(KERN_DEBUG "jffs2_scan_medium(): Skipping %d bytes in nextblock to ensure page alignment\n",
- skip));
+ jffs2_dbg(1, "%s(): Skipping %d bytes in nextblock to ensure page alignment\n",
+ __func__, skip);
jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
jffs2_scan_dirty_space(c, c->nextblock, skip);
}
@@ -285,11 +290,13 @@ static int jffs2_fill_scan_buf(struct jffs2_sb_info *c, void *buf,
ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
if (ret) {
- D1(printk(KERN_WARNING "mtd->read(0x%x bytes from 0x%x) returned %d\n", len, ofs, ret));
+ jffs2_dbg(1, "mtd->read(0x%x bytes from 0x%x) returned %d\n",
+ len, ofs, ret);
return ret;
}
if (retlen < len) {
- D1(printk(KERN_WARNING "Read at 0x%x gave only 0x%zx bytes\n", ofs, retlen));
+ jffs2_dbg(1, "Read at 0x%x gave only 0x%zx bytes\n",
+ ofs, retlen);
return -EIO;
}
return 0;
@@ -447,7 +454,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
ofs = jeb->offset;
prevofs = jeb->offset - 1;
- D1(printk(KERN_DEBUG "jffs2_scan_eraseblock(): Scanning block at 0x%x\n", ofs));
+ jffs2_dbg(1, "%s(): Scanning block at 0x%x\n", __func__, ofs);
#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
if (jffs2_cleanmarker_oob(c)) {
@@ -457,7 +464,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
return BLK_STATE_BADBLOCK;
ret = jffs2_check_nand_cleanmarker(c, jeb);
- D2(printk(KERN_NOTICE "jffs_check_nand_cleanmarker returned %d\n",ret));
+ jffs2_dbg(2, "jffs_check_nand_cleanmarker returned %d\n", ret);
/* Even if it's not found, we still scan to see
if the block is empty. We use this information
@@ -559,7 +566,8 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
if (jffs2_cleanmarker_oob(c)) {
/* scan oob, take care of cleanmarker */
int ret = jffs2_check_oob_empty(c, jeb, cleanmarkerfound);
- D2(printk(KERN_NOTICE "jffs2_check_oob_empty returned %d\n",ret));
+ jffs2_dbg(2, "jffs2_check_oob_empty returned %d\n",
+ ret);
switch (ret) {
case 0: return cleanmarkerfound ? BLK_STATE_CLEANMARKER : BLK_STATE_ALLFF;
case 1: return BLK_STATE_ALLDIRTY;
@@ -567,15 +575,16 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
}
}
#endif
- D1(printk(KERN_DEBUG "Block at 0x%08x is empty (erased)\n", jeb->offset));
+ jffs2_dbg(1, "Block at 0x%08x is empty (erased)\n",
+ jeb->offset);
if (c->cleanmarker_size == 0)
return BLK_STATE_CLEANMARKER; /* don't bother with re-erase */
else
return BLK_STATE_ALLFF; /* OK to erase if all blocks are like this */
}
if (ofs) {
- D1(printk(KERN_DEBUG "Free space at %08x ends at %08x\n", jeb->offset,
- jeb->offset + ofs));
+ jffs2_dbg(1, "Free space at %08x ends at %08x\n", jeb->offset,
+ jeb->offset + ofs);
if ((err = jffs2_prealloc_raw_node_refs(c, jeb, 1)))
return err;
if ((err = jffs2_scan_dirty_space(c, jeb, ofs)))
@@ -616,8 +625,10 @@ scan_more:
prevofs = ofs;
if (jeb->offset + c->sector_size < ofs + sizeof(*node)) {
- D1(printk(KERN_DEBUG "Fewer than %zd bytes left to end of block. (%x+%x<%x+%zx) Not reading\n", sizeof(struct jffs2_unknown_node),
- jeb->offset, c->sector_size, ofs, sizeof(*node)));
+ jffs2_dbg(1, "Fewer than %zd bytes left to end of block. (%x+%x<%x+%zx) Not reading\n",
+ sizeof(struct jffs2_unknown_node),
+ jeb->offset, c->sector_size, ofs,
+ sizeof(*node));
if ((err = jffs2_scan_dirty_space(c, jeb, (jeb->offset + c->sector_size)-ofs)))
return err;
break;
@@ -625,8 +636,9 @@ scan_more:
if (buf_ofs + buf_len < ofs + sizeof(*node)) {
buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
- D1(printk(KERN_DEBUG "Fewer than %zd bytes (node header) left to end of buf. Reading 0x%x at 0x%08x\n",
- sizeof(struct jffs2_unknown_node), buf_len, ofs));
+ jffs2_dbg(1, "Fewer than %zd bytes (node header) left to end of buf. Reading 0x%x at 0x%08x\n",
+ sizeof(struct jffs2_unknown_node),
+ buf_len, ofs);
err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
if (err)
return err;
@@ -643,7 +655,7 @@ scan_more:
ofs += 4;
scan_end = min_t(uint32_t, EMPTY_SCAN_SIZE(c->sector_size)/8, buf_len);
- D1(printk(KERN_DEBUG "Found empty flash at 0x%08x\n", ofs));
+ jffs2_dbg(1, "Found empty flash at 0x%08x\n", ofs);
more_empty:
inbuf_ofs = ofs - buf_ofs;
while (inbuf_ofs < scan_end) {
@@ -659,13 +671,15 @@ scan_more:
ofs += 4;
}
/* Ran off end. */
- D1(printk(KERN_DEBUG "Empty flash to end of buffer at 0x%08x\n", ofs));
+ jffs2_dbg(1, "Empty flash to end of buffer at 0x%08x\n",
+ ofs);
/* If we're only checking the beginning of a block with a cleanmarker,
bail now */
if (buf_ofs == jeb->offset && jeb->used_size == PAD(c->cleanmarker_size) &&
c->cleanmarker_size && !jeb->dirty_size && !ref_next(jeb->first_node)) {
- D1(printk(KERN_DEBUG "%d bytes at start of block seems clean... assuming all clean\n", EMPTY_SCAN_SIZE(c->sector_size)));
+ jffs2_dbg(1, "%d bytes at start of block seems clean... assuming all clean\n",
+ EMPTY_SCAN_SIZE(c->sector_size));
return BLK_STATE_CLEANMARKER;
}
if (!buf_size && (scan_end != buf_len)) {/* XIP/point case */
@@ -678,13 +692,14 @@ scan_more:
if (!buf_len) {
/* No more to read. Break out of main loop without marking
this range of empty space as dirty (because it's not) */
- D1(printk(KERN_DEBUG "Empty flash at %08x runs to end of block. Treating as free_space\n",
- empty_start));
+ jffs2_dbg(1, "Empty flash at %08x runs to end of block. Treating as free_space\n",
+ empty_start);
break;
}
/* point never reaches here */
scan_end = buf_len;
- D1(printk(KERN_DEBUG "Reading another 0x%x at 0x%08x\n", buf_len, ofs));
+ jffs2_dbg(1, "Reading another 0x%x at 0x%08x\n",
+ buf_len, ofs);
err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
if (err)
return err;
@@ -700,7 +715,7 @@ scan_more:
continue;
}
if (je16_to_cpu(node->magic) == JFFS2_DIRTY_BITMASK) {
- D1(printk(KERN_DEBUG "Dirty bitmask at 0x%08x\n", ofs));
+ jffs2_dbg(1, "Dirty bitmask at 0x%08x\n", ofs);
if ((err = jffs2_scan_dirty_space(c, jeb, 4)))
return err;
ofs += 4;
@@ -756,7 +771,8 @@ scan_more:
if (!(je16_to_cpu(node->nodetype) & JFFS2_NODE_ACCURATE)) {
/* Wheee. This is an obsoleted node */
- D2(printk(KERN_DEBUG "Node at 0x%08x is obsolete. Skipping\n", ofs));
+ jffs2_dbg(2, "Node at 0x%08x is obsolete. Skipping\n",
+ ofs);
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(node->totlen)))))
return err;
ofs += PAD(je32_to_cpu(node->totlen));
@@ -767,8 +783,9 @@ scan_more:
case JFFS2_NODETYPE_INODE:
if (buf_ofs + buf_len < ofs + sizeof(struct jffs2_raw_inode)) {
buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
- D1(printk(KERN_DEBUG "Fewer than %zd bytes (inode node) left to end of buf. Reading 0x%x at 0x%08x\n",
- sizeof(struct jffs2_raw_inode), buf_len, ofs));
+ jffs2_dbg(1, "Fewer than %zd bytes (inode node) left to end of buf. Reading 0x%x at 0x%08x\n",
+ sizeof(struct jffs2_raw_inode),
+ buf_len, ofs);
err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
if (err)
return err;
@@ -783,8 +800,9 @@ scan_more:
case JFFS2_NODETYPE_DIRENT:
if (buf_ofs + buf_len < ofs + je32_to_cpu(node->totlen)) {
buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
- D1(printk(KERN_DEBUG "Fewer than %d bytes (dirent node) left to end of buf. Reading 0x%x at 0x%08x\n",
- je32_to_cpu(node->totlen), buf_len, ofs));
+ jffs2_dbg(1, "Fewer than %d bytes (dirent node) left to end of buf. Reading 0x%x at 0x%08x\n",
+ je32_to_cpu(node->totlen), buf_len,
+ ofs);
err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
if (err)
return err;
@@ -800,9 +818,9 @@ scan_more:
case JFFS2_NODETYPE_XATTR:
if (buf_ofs + buf_len < ofs + je32_to_cpu(node->totlen)) {
buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
- D1(printk(KERN_DEBUG "Fewer than %d bytes (xattr node)"
- " left to end of buf. Reading 0x%x at 0x%08x\n",
- je32_to_cpu(node->totlen), buf_len, ofs));
+ jffs2_dbg(1, "Fewer than %d bytes (xattr node) left to end of buf. Reading 0x%x at 0x%08x\n",
+ je32_to_cpu(node->totlen), buf_len,
+ ofs);
err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
if (err)
return err;
@@ -817,9 +835,9 @@ scan_more:
case JFFS2_NODETYPE_XREF:
if (buf_ofs + buf_len < ofs + je32_to_cpu(node->totlen)) {
buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
- D1(printk(KERN_DEBUG "Fewer than %d bytes (xref node)"
- " left to end of buf. Reading 0x%x at 0x%08x\n",
- je32_to_cpu(node->totlen), buf_len, ofs));
+ jffs2_dbg(1, "Fewer than %d bytes (xref node) left to end of buf. Reading 0x%x at 0x%08x\n",
+ je32_to_cpu(node->totlen), buf_len,
+ ofs);
err = jffs2_fill_scan_buf(c, buf, ofs, buf_len);
if (err)
return err;
@@ -834,7 +852,7 @@ scan_more:
#endif /* CONFIG_JFFS2_FS_XATTR */
case JFFS2_NODETYPE_CLEANMARKER:
- D1(printk(KERN_DEBUG "CLEANMARKER node found at 0x%08x\n", ofs));
+ jffs2_dbg(1, "CLEANMARKER node found at 0x%08x\n", ofs);
if (je32_to_cpu(node->totlen) != c->cleanmarker_size) {
printk(KERN_NOTICE "CLEANMARKER node found at 0x%08x has totlen 0x%x != normal 0x%x\n",
ofs, je32_to_cpu(node->totlen), c->cleanmarker_size);
@@ -878,14 +896,16 @@ scan_more:
return -EINVAL;
case JFFS2_FEATURE_RWCOMPAT_DELETE:
- D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
+ jffs2_dbg(1, "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n",
+ je16_to_cpu(node->nodetype), ofs);
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(node->totlen)))))
return err;
ofs += PAD(je32_to_cpu(node->totlen));
break;
case JFFS2_FEATURE_RWCOMPAT_COPY: {
- D1(printk(KERN_NOTICE "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs));
+ jffs2_dbg(1, "Unknown but compatible feature node (0x%04x) found at offset 0x%08x\n",
+ je16_to_cpu(node->nodetype), ofs);
jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(node->totlen)), NULL);
@@ -906,8 +926,9 @@ scan_more:
}
}
- D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n",
- jeb->offset,jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size, jeb->wasted_size));
+ jffs2_dbg(1, "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size,
+ jeb->unchecked_size, jeb->used_size, jeb->wasted_size);
/* mark_node_obsolete can add to wasted !! */
if (jeb->wasted_size) {
@@ -952,7 +973,7 @@ static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_erasebloc
struct jffs2_inode_cache *ic;
uint32_t crc, ino = je32_to_cpu(ri->ino);
- D1(printk(KERN_DEBUG "jffs2_scan_inode_node(): Node at 0x%08x\n", ofs));
+ jffs2_dbg(1, "%s(): Node at 0x%08x\n", __func__, ofs);
/* We do very little here now. Just check the ino# to which we should attribute
this node; we can do all the CRC checking etc. later. There's a tradeoff here --
@@ -987,10 +1008,10 @@ static int jffs2_scan_inode_node(struct jffs2_sb_info *c, struct jffs2_erasebloc
/* Wheee. It worked */
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",
+ jffs2_dbg(1, "Node is ino #%u, version %d. Range 0x%x-0x%x\n",
je32_to_cpu(ri->ino), je32_to_cpu(ri->version),
je32_to_cpu(ri->offset),
- je32_to_cpu(ri->offset)+je32_to_cpu(ri->dsize)));
+ je32_to_cpu(ri->offset)+je32_to_cpu(ri->dsize));
pseudo_random += je32_to_cpu(ri->version);
@@ -1010,7 +1031,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
uint32_t crc;
int err;
- D1(printk(KERN_DEBUG "jffs2_scan_dirent_node(): Node at 0x%08x\n", ofs));
+ jffs2_dbg(1, "%s(): Node at 0x%08x\n", __func__, ofs);
/* We don't get here unless the node is still valid, so we don't have to
mask in the ACCURATE bit any more. */
@@ -1044,7 +1065,8 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
if (crc != je32_to_cpu(rd->name_crc)) {
printk(KERN_NOTICE "jffs2_scan_dirent_node(): Name CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
ofs, je32_to_cpu(rd->name_crc), crc);
- D1(printk(KERN_NOTICE "Name for which CRC failed is (now) '%s', ino #%d\n", fd->name, je32_to_cpu(rd->ino)));
+ jffs2_dbg(1, "Name for which CRC failed is (now) '%s', ino #%d\n",
+ fd->name, je32_to_cpu(rd->ino));
jffs2_free_full_dirent(fd);
/* FIXME: Why do we believe totlen? */
/* We believe totlen because the CRC on the node _header_ was OK, just the name failed. */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.