[PATCH 25/28] mtd: introduce mtd_resume interface

Artem Bityutskiy
2011-12-23T18:11:09Z

arch/cris/arch-v32/drivers/axisflashmap.c | 3 +--
drivers/mtd/inftlmount.c | 3 ++-
drivers/mtd/mtdchar.c | 2 +-
drivers/mtd/mtdconcat.c | 2 +-
drivers/mtd/mtdoops.c | 4 ++--
drivers/mtd/mtdpart.c | 5 ++---
drivers/mtd/mtdswap.c | 4 ++--
drivers/mtd/nftlmount.c | 3 ++-
drivers/mtd/redboot.c | 4 ++--
drivers/mtd/ssfdc.c | 4 ++--
drivers/mtd/tests/mtd_oobtest.c | 2 +-
drivers/mtd/tests/mtd_pagetest.c | 2 +-
drivers/mtd/tests/mtd_readtest.c | 2 +-
drivers/mtd/tests/mtd_speedtest.c | 2 +-
drivers/mtd/tests/mtd_stresstest.c | 2 +-
drivers/mtd/tests/mtd_subpagetest.c | 2 +-
drivers/mtd/tests/mtd_torturetest.c | 3 +--
drivers/mtd/ubi/io.c | 2 +-
fs/jffs2/scan.c | 2 +-
fs/logfs/dev_mtd.c | 4 ++--
include/linux/mtd/mtd.h | 7 ++++++-
21 files changed, 34 insertions(+), 30 deletions(-)

diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c
index 011bddb..b34438e 100644
--- a/arch/cris/arch-v32/drivers/axisflashmap.c
+++ b/arch/cris/arch-v32/drivers/axisflashmap.c
@@ -404,8 +404,7 @@ static int __init init_axis_flash(void)
*/
int blockstat;
do {
- blockstat = main_mtd->block_isbad(main_mtd,
- ptable_sector);
+ blockstat = mtd_block_isbad(main_mtd, ptable_sector);
if (blockstat < 0)
ptable_sector = 0; /* read error */
else if (blockstat)
diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c
index 9bfbca5..3851940 100644
--- a/drivers/mtd/inftlmount.c
+++ b/drivers/mtd/inftlmount.c
@@ -306,7 +306,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
/* If any of the physical eraseblocks are bad, don't
use the unit. */
for (physblock = 0; physblock < inftl->EraseSize; physblock += inftl->mbd.mtd->erasesize) {
- if (inftl->mbd.mtd->block_isbad(inftl->mbd.mtd, i * inftl->EraseSize + physblock))
+ if (mtd_block_isbad(inftl->mbd.mtd,
+ i * inftl->EraseSize + physblock))
inftl->PUtable[i] = BLOCK_RESERVED;
}
}
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 46b6a8b..8132fe9 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -886,7 +886,7 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
if (!mtd->block_isbad)
ret = -EOPNOTSUPP;
else
- return mtd->block_isbad(mtd, offs);
+ return mtd_block_isbad(mtd, offs);
break;
}

diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 4b7f825..d0db5e6 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -667,7 +667,7 @@ static int concat_block_isbad(struct mtd_info *mtd, loff_t ofs)
continue;
}

- res = subdev->block_isbad(subdev, ofs);
+ res = mtd_block_isbad(subdev, ofs);
break;
}

diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 7be2018..bc43d2f 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -170,7 +170,7 @@ static void mtdoops_workfunc_erase(struct work_struct *work)
}

while (mtd->block_isbad) {
- ret = mtd->block_isbad(mtd, cxt->nextpage * record_size);
+ ret = mtd_block_isbad(mtd, cxt->nextpage * record_size);
if (!ret)
break;
if (ret < 0) {
@@ -254,7 +254,7 @@ static void find_next_position(struct mtdoops_context *cxt)

for (page = 0; page < cxt->oops_pages; page++) {
if (mtd->block_isbad &&
- mtd->block_isbad(mtd, page * record_size))
+ mtd_block_isbad(mtd, page * record_size))
continue;
/* Assume the page is used */
mark_page_used(cxt, page);
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 8610750..0e7dfc7 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -322,7 +322,7 @@ static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
if (ofs >= mtd->size)
return -EINVAL;
ofs += part->offset;
- return part->master->block_isbad(part->master, ofs);
+ return mtd_block_isbad(part->master, ofs);
}

static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
@@ -553,8 +553,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
uint64_t offs = 0;

while (offs < slave->mtd.size) {
- if (master->block_isbad(master,
- offs + slave->offset))
+ if (mtd_block_isbad(master, offs + slave->offset))
slave->mtd.ecc_stats.badblocks++;
offs += slave->mtd.erasesize;
}
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
index cb794e7..87aa0a6 100644
--- a/drivers/mtd/mtdswap.c
+++ b/drivers/mtd/mtdswap.c
@@ -343,7 +343,7 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb)
offset = mtdswap_eb_offset(d, eb);

/* Check first if the block is bad. */
- if (d->mtd->block_isbad && d->mtd->block_isbad(d->mtd, offset))
+ if (d->mtd->block_isbad && mtd_block_isbad(d->mtd, offset))
return MTDSWAP_SCANNED_BAD;

ops.ooblen = 2 * d->mtd->ecclayout->oobavail;
@@ -1061,7 +1061,7 @@ static unsigned int mtdswap_badblocks(struct mtd_info *mtd, uint64_t size)

if (mtd->block_isbad)
for (offset = 0; offset < size; offset += mtd->erasesize)
- if (mtd->block_isbad(mtd, offset))
+ if (mtd_block_isbad(mtd, offset))
badcnt++;

return badcnt;
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
index b068dc8..156af9f 100644
--- a/drivers/mtd/nftlmount.c
+++ b/drivers/mtd/nftlmount.c
@@ -242,7 +242,8 @@ The new DiskOnChip driver already scanned the bad block table. Just query it.
if (buf[i & (SECTORSIZE - 1)] != 0xff)
nftl->ReplUnitTable[i] = BLOCK_RESERVED;
#endif
- if (nftl->mbd.mtd->block_isbad(nftl->mbd.mtd, i * nftl->EraseSize))
+ if (mtd_block_isbad(nftl->mbd.mtd,
+ i * nftl->EraseSize))
nftl->ReplUnitTable[i] = BLOCK_RESERVED;
}

diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index 623d9b8..09bb81e 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -79,7 +79,7 @@ static int parse_redboot_partitions(struct mtd_info *master,
if ( directory < 0 ) {
offset = master->size + directory * master->erasesize;
while (master->block_isbad &&
- master->block_isbad(master, offset)) {
+ mtd_block_isbad(master, offset)) {
if (!offset) {
nogood:
printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
@@ -90,7 +90,7 @@ static int parse_redboot_partitions(struct mtd_info *master,
} else {
offset = directory * master->erasesize;
while (master->block_isbad &&
- master->block_isbad(master, offset)) {
+ mtd_block_isbad(master, offset)) {
offset += master->erasesize;
if (offset == master->size)
goto nogood;
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index 0e68813..ab2a52a 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -122,7 +122,7 @@ static int get_valid_cis_sector(struct mtd_info *mtd)
* is not SSFDC formatted
*/
for (k = 0, offset = 0; k < 4; k++, offset += mtd->erasesize) {
- if (!mtd->block_isbad(mtd, offset)) {
+ if (mtd_block_isbad(mtd, offset)) {
ret = mtd_read(mtd, offset, SECTOR_SIZE, &retlen,
sect_buf);

@@ -255,7 +255,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc)
for (phys_block = ssfdc->cis_block + 1; phys_block < ssfdc->map_len;
phys_block++) {
offset = (unsigned long)phys_block * ssfdc->erase_size;
- if (mtd->block_isbad(mtd, offset))
+ if (mtd_block_isbad(mtd, offset))
continue; /* skip bad blocks */

ret = read_raw_oob(mtd, offset, oob_buf);
diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c
index 8111388..ed9b628 100644
--- a/drivers/mtd/tests/mtd_oobtest.c
+++ b/drivers/mtd/tests/mtd_oobtest.c
@@ -329,7 +329,7 @@ static int is_block_bad(int ebnum)
int ret;
loff_t addr = ebnum * mtd->erasesize;

- ret = mtd->block_isbad(mtd, addr);
+ ret = mtd_block_isbad(mtd, addr);
if (ret)
printk(PRINT_PREF "block %d is bad\n", ebnum);
return ret;
diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c
index 83da97e..8024eaf 100644
--- a/drivers/mtd/tests/mtd_pagetest.c
+++ b/drivers/mtd/tests/mtd_pagetest.c
@@ -469,7 +469,7 @@ static int is_block_bad(int ebnum)
loff_t addr = ebnum * mtd->erasesize;
int ret;

- ret = mtd->block_isbad(mtd, addr);
+ ret = mtd_block_isbad(mtd, addr);
if (ret)
printk(PRINT_PREF "block %d is bad\n", ebnum);
return ret;
diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c
index 5eaeada..ad5fd0d 100644
--- a/drivers/mtd/tests/mtd_readtest.c
+++ b/drivers/mtd/tests/mtd_readtest.c
@@ -132,7 +132,7 @@ static int is_block_bad(int ebnum)
loff_t addr = ebnum * mtd->erasesize;
int ret;

- ret = mtd->block_isbad(mtd, addr);
+ ret = mtd_block_isbad(mtd, addr);
if (ret)
printk(PRINT_PREF "block %d is bad\n", ebnum);
return ret;
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c
index c7b18e1..ecb2878 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -296,7 +296,7 @@ static int is_block_bad(int ebnum)
loff_t addr = ebnum * mtd->erasesize;
int ret;

- ret = mtd->block_isbad(mtd, addr);
+ ret = mtd_block_isbad(mtd, addr);
if (ret)
printk(PRINT_PREF "block %d is bad\n", ebnum);
return ret;
diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c
index f8aac4b..4789c0e 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -132,7 +132,7 @@ static int is_block_bad(int ebnum)
loff_t addr = ebnum * mtd->erasesize;
int ret;

- ret = mtd->block_isbad(mtd, addr);
+ ret = mtd_block_isbad(mtd, addr);
if (ret)
printk(PRINT_PREF "block %d is bad\n", ebnum);
return ret;
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c
index b90c010..4b873d4 100644
--- a/drivers/mtd/tests/mtd_subpagetest.c
+++ b/drivers/mtd/tests/mtd_subpagetest.c
@@ -344,7 +344,7 @@ static int is_block_bad(int ebnum)
loff_t addr = ebnum * mtd->erasesize;
int ret;

- ret = mtd->block_isbad(mtd, addr);
+ ret = mtd_block_isbad(mtd, addr);
if (ret)
printk(PRINT_PREF "block %d is bad\n", ebnum);
return ret;
diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c
index dd34a51..30c4ed9 100644
--- a/drivers/mtd/tests/mtd_torturetest.c
+++ b/drivers/mtd/tests/mtd_torturetest.c
@@ -292,8 +292,7 @@ static int __init tort_init(void)
memset(&bad_ebs[0], 0, sizeof(int) * ebcnt);
if (mtd->block_isbad) {
for (i = eb; i < eb + ebcnt; i++) {
- err = mtd->block_isbad(mtd,
- (loff_t)i * mtd->erasesize);
+ err = mtd_block_isbad(mtd, (loff_t)i * mtd->erasesize);

if (err < 0) {
printk(PRINT_PREF "block_isbad() returned %d "
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index 8d832fc..a1b683a 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -634,7 +634,7 @@ int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)
if (ubi->bad_allowed) {
int ret;

- ret = mtd->block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
+ ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
if (ret < 0)
ubi_err("error %d while checking if PEB %d is bad",
ret, pnum);
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 72f3960..83e1665 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -455,7 +455,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
if (jffs2_cleanmarker_oob(c)) {
int ret;

- if (c->mtd->block_isbad(c->mtd, jeb->offset))
+ if (mtd_block_isbad(c->mtd, jeb->offset))
return BLK_STATE_BADBLOCK;

ret = jffs2_check_nand_cleanmarker(c, jeb);
diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c
index 0ca7a07..136c736 100644
--- a/fs/logfs/dev_mtd.c
+++ b/fs/logfs/dev_mtd.c
@@ -157,7 +157,7 @@ static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs)
return NULL;

*ofs = 0;
- while (mtd->block_isbad(mtd, *ofs)) {
+ while (mtd_block_isbad(mtd, *ofs)) {
*ofs += mtd->erasesize;
if (*ofs >= mtd->size)
return NULL;
@@ -177,7 +177,7 @@ static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs)
return NULL;

*ofs = mtd->size - mtd->erasesize;
- while (mtd->block_isbad(mtd, *ofs)) {
+ while (mtd_block_isbad(mtd, *ofs)) {
*ofs -= mtd->erasesize;
if (*ofs <= 0)
return NULL;
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index d6b4aa1..a307ad0 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -210,6 +210,7 @@ struct mtd_info {
int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
+ int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
int (*suspend) (struct mtd_info *mtd);
void (*resume) (struct mtd_info *mtd);

@@ -219,7 +220,6 @@ struct mtd_info {
struct backing_dev_info *backing_dev_info;

/* Bad block management functions */
- int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);

struct notifier_block reboot_notifier; /* default mode before reboot */
@@ -406,6 +406,11 @@ static inline void mtd_resume(struct mtd_info *mtd)
mtd->resume(mtd);
}

+static inline int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
+{
+ return mtd->block_isbad(mtd, ofs);