diff options
Diffstat (limited to 'target/linux/generic/patches-2.6.31/204-jffs2_eofdetect.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.31/204-jffs2_eofdetect.patch | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/target/linux/generic/patches-2.6.31/204-jffs2_eofdetect.patch b/target/linux/generic/patches-2.6.31/204-jffs2_eofdetect.patch deleted file mode 100644 index 16d3e1f8e..000000000 --- a/target/linux/generic/patches-2.6.31/204-jffs2_eofdetect.patch +++ /dev/null @@ -1,132 +0,0 @@ ---- 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; |