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ENGR00069937 Community patch for Fix mount error in case of MLC flash

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Even though we don't use the OOB for MLC nand flash,
we should use the bad block information to skip the bad block.
Patch url:
http://patchwork.ozlabs.org/linux-mtd/patch?q=mlc&filter=none&id=15477
Author:Kyungmin Park

Signed-off-by: Jason Liu <r64343@freescale.com>
This commit is contained in:
Jason Liu
2008-03-25 21:57:06 -05:00
committed by Matt Sealey
parent c53a5e9698
commit 09095cdef1
1 changed files with 13 additions and 11 deletions
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24
fs/jffs2/scan.c
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@@ -112,7 +112,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
if (!flashbuf) {
/* For NAND it's quicker to read a whole eraseblock at a time,
apparently */
if (jffs2_cleanmarker_oob(c))
if (c->mtd->type == MTD_NANDFLASH)
buf_size = c->sector_size;
else
buf_size = PAGE_SIZE;
@@ -449,22 +449,24 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
D1(printk(KERN_DEBUG "jffs2_scan_eraseblock(): Scanning block at 0x%x\n", ofs));
#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
if (jffs2_cleanmarker_oob(c)) {
if (c->mtd->type == MTD_NANDFLASH) {
int ret;
if (c->mtd->block_isbad(c->mtd, jeb->offset))
return BLK_STATE_BADBLOCK;
ret = jffs2_check_nand_cleanmarker(c, jeb);
D2(printk(KERN_NOTICE "jffs_check_nand_cleanmarker returned %d\n",ret));
if (jffs2_cleanmarker_oob(c)) {
ret = jffs2_check_nand_cleanmarker(c, jeb);
D2(printk(KERN_NOTICE "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
to decide whether to erase it or not. */
switch (ret) {
case 0: cleanmarkerfound = 1; break;
case 1: break;
default: return ret;
/* Even if it's not found, we still scan to see
if the block is empty. We use this information
to decide whether to erase it or not. */
switch (ret) {
case 0: cleanmarkerfound = 1; break;
case 1: break;
default: return ret;
}
}
}
#endif