+++ /dev/null
---- a/fs/jffs2/build.c
-+++ b/fs/jffs2/build.c
-@@ -111,6 +111,17 @@ static int jffs2_build_filesystem(struct
- dbg_fsbuild("scanned flash completely\n");
- jffs2_dbg_dump_block_lists_nolock(c);
-
-+ if (c->flags & (1 << 7)) {
-+ printk("%s(): unlocking the mtd device... ", __func__);
-+ if (c->mtd->unlock)
-+ c->mtd->unlock(c->mtd, 0, c->mtd->size);
-+ printk("done.\n");
-+
-+ printk("%s(): erasing all blocks after the end marker... ", __func__);
-+ jffs2_erase_pending_blocks(c, -1);
-+ printk("done.\n");
-+ }
-+
- dbg_fsbuild("pass 1 starting\n");
- c->flags |= JFFS2_SB_FLAG_BUILDING;
- /* Now scan the directory tree, increasing nlink according to every dirent found. */
---- a/fs/jffs2/scan.c
-+++ b/fs/jffs2/scan.c
-@@ -72,7 +72,7 @@ static int file_dirty(struct jffs2_sb_in
- return ret;
- if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size)))
- return ret;
-- /* Turned wasted size into dirty, since we apparently
-+ /* Turned wasted size into dirty, since we apparently
- think it's recoverable now. */
- jeb->dirty_size += jeb->wasted_size;
- c->dirty_size += jeb->wasted_size;
-@@ -144,8 +144,11 @@ int jffs2_scan_medium(struct jffs2_sb_in
- /* reset summary info for next eraseblock scan */
- jffs2_sum_reset_collected(s);
-
-- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
-- buf_size, s);
-+ if (c->flags & (1 << 7))
-+ ret = BLK_STATE_ALLFF;
-+ else
-+ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
-+ buf_size, s);
-
- if (ret < 0)
- goto out;
-@@ -400,7 +403,7 @@ static int jffs2_scan_xref_node(struct j
- if (!ref)
- return -ENOMEM;
-
-- /* BEFORE jffs2_build_xattr_subsystem() called,
-+ /* BEFORE jffs2_build_xattr_subsystem() called,
- * and AFTER xattr_ref is marked as a dead xref,
- * 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
-@@ -473,7 +476,7 @@ static int jffs2_scan_eraseblock (struct
- struct jffs2_sum_marker *sm;
- void *sumptr = NULL;
- uint32_t sumlen;
--
-+
- if (!buf_size) {
- /* XIP case. Just look, point at the summary if it's there */
- sm = (void *)buf + c->sector_size - sizeof(*sm);
-@@ -489,9 +492,9 @@ static int jffs2_scan_eraseblock (struct
- buf_len = sizeof(*sm);
-
- /* Read as much as we want into the _end_ of the preallocated buffer */
-- err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len,
-+ err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len,
- jeb->offset + c->sector_size - buf_len,
-- buf_len);
-+ buf_len);
- if (err)
- return err;
-
-@@ -510,9 +513,9 @@ static int jffs2_scan_eraseblock (struct
- }
- if (buf_len < sumlen) {
- /* Need to read more so that the entire summary node is present */
-- err = jffs2_fill_scan_buf(c, sumptr,
-+ err = jffs2_fill_scan_buf(c, sumptr,
- jeb->offset + c->sector_size - sumlen,
-- sumlen - buf_len);
-+ sumlen - buf_len);
- if (err)
- return err;
- }
-@@ -525,7 +528,7 @@ static int jffs2_scan_eraseblock (struct
-
- if (buf_size && sumlen > buf_size)
- kfree(sumptr);
-- /* If it returns with a real error, bail.
-+ /* If it returns with a real error, bail.
- If it returns positive, that's a block classification
- (i.e. BLK_STATE_xxx) so return that too.
- If it returns zero, fall through to full scan. */
-@@ -546,6 +549,17 @@ static int jffs2_scan_eraseblock (struct
- return err;
- }
-
-+ if ((buf[0] == 0xde) &&
-+ (buf[1] == 0xad) &&
-+ (buf[2] == 0xc0) &&
-+ (buf[3] == 0xde)) {
-+ /* end of filesystem. erase everything after this point */
-+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
-+ c->flags |= (1 << 7);
-+
-+ return BLK_STATE_ALLFF;
-+ }
-+
- /* We temporarily use 'ofs' as a pointer into the buffer/jeb */
- ofs = 0;
-
-@@ -671,7 +685,7 @@ scan_more:
- scan_end = buf_len;
- goto more_empty;
- }
--
-+
- /* See how much more there is to read in this eraseblock... */
- buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
- if (!buf_len) {
-@@ -907,7 +921,7 @@ 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));
--
-+
- /* mark_node_obsolete can add to wasted !! */
- if (jeb->wasted_size) {
- jeb->dirty_size += jeb->wasted_size;
projects / openwrt / svn-archive / archive.git / blobdiff