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mtd: Unconditionally update ->fail_addr and ->addr in part_erase()

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->fail_addr and ->addr can be updated no matter the result of
parent->_erase(), we just need to remove the code doing the same thing
in mtd_erase_callback() to avoid adjusting those fields twice.

Note that this can be done because all MTD users have been converted to
not pass an erase_info->callback() and are thus only taking the
->addr_fail and ->addr fields into account after part_erase() has
returned.

While we're at it, get rid of the erase_info->mtd field which was only
needed to let mtd_erase_callback() get the partition device back.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Boris Brezillon 2018-02-12 22:03:10 +01:00
parent 884cfd9023
commit 8f347c4232
18 changed files with 6 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/mtd/ftl.c
View File

@ -342,7 +342,6 @@ static int erase_xfer(partition_t *part,
if (!erase)
return -ENOMEM;
erase->mtd = part->mbd.mtd;
erase->addr = xfer->Offset;
erase->len = 1 << part->header.EraseUnitSize;

3
drivers/mtd/inftlmount.c
View File

@ -208,8 +208,6 @@ static int find_boot_record(struct INFTLrecord *inftl)
if (ip->Reserved0 != ip->firstUnit) {
struct erase_info *instr = &inftl->instr;
instr->mtd = inftl->mbd.mtd;
/*
* Most likely this is using the
* undocumented qiuck mount feature.
@ -385,7 +383,6 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
_first_? */
/* Use async erase interface, test return code */
instr->mtd = inftl->mbd.mtd;
instr->addr = block * inftl->EraseSize;
instr->len = inftl->mbd.mtd->erasesize;
/* Erase one physical eraseblock at a time, even though the NAND api

1
drivers/mtd/mtdblock.c
View File

@ -65,7 +65,6 @@ static int erase_write (struct mtd_info *mtd, unsigned long pos,
/*
* First, let's erase the flash block.
*/
erase.mtd = mtd;
erase.addr = pos;
erase.len = len;

1
drivers/mtd/mtdchar.c
View File

@ -726,7 +726,6 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
erase->addr = einfo32.start;
erase->len = einfo32.length;
}
erase->mtd = mtd;
ret = mtd_erase(mtd, erase);
kfree(erase);

1
drivers/mtd/mtdconcat.c
View File

@ -427,7 +427,6 @@ static int concat_erase(struct mtd_info *mtd, struct erase_info *instr)
erase->len = length;
length -= erase->len;
erase->mtd = subdev;
if ((err = mtd_erase(subdev, erase))) {
/* sanity check: should never happen since
* block alignment has been checked above */

1
drivers/mtd/mtdoops.c
View File

@ -94,7 +94,6 @@ static int mtdoops_erase_block(struct mtdoops_context *cxt, int offset)
int ret;
int page;
erase.mtd = mtd;
erase.addr = offset;
erase.len = mtd->erasesize;

16
drivers/mtd/mtdpart.c
View File

@ -205,23 +205,15 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
instr->addr += part->offset;
ret = part->parent->_erase(part->parent, instr);
if (ret) {
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
}
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
return ret;
}
void mtd_erase_callback(struct erase_info *instr)
{
if (instr->mtd->_erase == part_erase) {
struct mtd_part *part = mtd_to_part(instr->mtd);
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
instr->addr -= part->offset;
}
}
EXPORT_SYMBOL_GPL(mtd_erase_callback);

2
drivers/mtd/mtdswap.c
View File

@ -549,8 +549,6 @@ static int mtdswap_erase_block(struct mtdswap_dev *d, struct swap_eb *eb)
retry:
memset(&erase, 0, sizeof(struct erase_info));
erase.mtd = mtd;
erase.addr = mtdswap_eb_offset(d, eb);
erase.len = mtd->erasesize;

1
drivers/mtd/nand/nand_base.c
View File

@ -527,7 +527,6 @@ static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
/* Attempt erase before marking OOB */
memset(&einfo, 0, sizeof(einfo));
einfo.mtd = mtd;
einfo.addr = ofs;
einfo.len = 1ULL << chip->phys_erase_shift;
nand_erase_nand(mtd, &einfo, 0);

1
drivers/mtd/nand/nand_bbt.c
View File

@ -852,7 +852,6 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
}
memset(&einfo, 0, sizeof(einfo));
einfo.mtd = mtd;
einfo.addr = to;
einfo.len = 1 << this->bbt_erase_shift;
res = nand_erase_nand(mtd, &einfo, 1);

1
drivers/mtd/nftlmount.c
View File

@ -328,7 +328,6 @@ int NFTL_formatblock(struct NFTLrecord *nftl, int block)
memset(instr, 0, sizeof(struct erase_info));
/* XXX: use async erase interface, XXX: test return code */
instr->mtd = nftl->mbd.mtd;
instr->addr = block * nftl->EraseSize;
instr->len = nftl->EraseSize;
if (mtd_erase(mtd, instr)) {

1
drivers/mtd/rfd_ftl.c
View File

@ -275,7 +275,6 @@ static int erase_block(struct partition *part, int block)
if (!erase)
return -ENOMEM;
erase->mtd = part->mbd.mtd;
erase->addr = part->blocks[block].offset;
erase->len = part->block_size;

1
drivers/mtd/sm_ftl.c
View File

@ -460,7 +460,6 @@ static int sm_erase_block(struct sm_ftl *ftl, int zone_num, uint16_t block,
struct mtd_info *mtd = ftl->trans->mtd;
struct erase_info erase;
erase.mtd = mtd;
erase.addr = sm_mkoffset(ftl, zone_num, block, 0);
erase.len = ftl->block_size;

1
drivers/mtd/tests/mtd_test.c
View File

@ -14,7 +14,6 @@ int mtdtest_erase_eraseblock(struct mtd_info *mtd, unsigned int ebnum)
loff_t addr = (loff_t)ebnum * mtd->erasesize;
memset(&ei, 0, sizeof(struct erase_info));
ei.mtd = mtd;
ei.addr = addr;
ei.len = mtd->erasesize;

1
drivers/mtd/tests/speedtest.c
View File

@ -59,7 +59,6 @@ static int multiblock_erase(int ebnum, int blocks)
loff_t addr = (loff_t)ebnum * mtd->erasesize;
memset(&ei, 0, sizeof(struct erase_info));
ei.mtd = mtd;
ei.addr = addr;
ei.len = mtd->erasesize * blocks;

1
drivers/mtd/ubi/io.c
View File

@ -333,7 +333,6 @@ static int do_sync_erase(struct ubi_device *ubi, int pnum)
retry:
memset(&ei, 0, sizeof(struct erase_info));
ei.mtd = ubi->mtd;
ei.addr = (loff_t)pnum * ubi->peb_size;
ei.len = ubi->peb_size;

1
fs/jffs2/erase.c
View File

@ -59,7 +59,6 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
memset(instr, 0, sizeof(*instr));
instr->mtd = c->mtd;
instr->addr = jeb->offset;
instr->len = c->sector_size;

3
include/linux/mtd/mtd.h
View File

@ -38,13 +38,14 @@
#define MTD_FAIL_ADDR_UNKNOWN -1LL
struct mtd_info;
/*
* If the erase fails, fail_addr might indicate exactly which block failed. If
* fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level
* or was not specific to any particular block.
*/
struct erase_info {
struct mtd_info *mtd;
uint64_t addr;
uint64_t len;
uint64_t fail_addr;