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path: root/drivers/mtd/ubi/io.c
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Diffstat (limited to 'drivers/mtd/ubi/io.c')
-rw-r--r--drivers/mtd/ubi/io.c156
1 files changed, 83 insertions, 73 deletions
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index 0e2e9335fe..d1bdec3837 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -169,19 +169,20 @@ retry:
* enabled. A corresponding message will be printed
* later, when it is has been scrubbed.
*/
- ubi_msg("fixable bit-flip detected at PEB %d", pnum);
+ ubi_msg(ubi, "fixable bit-flip detected at PEB %d",
+ pnum);
ubi_assert(len == read);
return UBI_IO_BITFLIPS;
}
if (retries++ < UBI_IO_RETRIES) {
- ubi_warn("error %d%s while reading %d bytes from PEB %d:%d, read only %zd bytes, retry",
+ ubi_warn(ubi, "error %d%s while reading %d bytes from PEB %d:%d, read only %zd bytes, retry",
err, errstr, len, pnum, offset, read);
yield();
goto retry;
}
- ubi_err("error %d%s while reading %d bytes from PEB %d:%d, read %zd bytes",
+ ubi_err(ubi, "error %d%s while reading %d bytes from PEB %d:%d, read %zd bytes",
err, errstr, len, pnum, offset, read);
dump_stack();
@@ -238,7 +239,7 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
ubi_assert(len > 0 && len % ubi->hdrs_min_io_size == 0);
if (ubi->ro_mode) {
- ubi_err("read-only mode");
+ ubi_err(ubi, "read-only mode");
return -EROFS;
}
@@ -265,7 +266,7 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
}
if (ubi_dbg_is_write_failure(ubi)) {
- ubi_err("cannot write %d bytes to PEB %d:%d (emulated)",
+ ubi_err(ubi, "cannot write %d bytes to PEB %d:%d (emulated)",
len, pnum, offset);
dump_stack();
return -EIO;
@@ -274,7 +275,7 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
addr = (loff_t)pnum * ubi->peb_size + offset;
err = mtd_write(ubi->mtd, addr, len, &written, buf);
if (err) {
- ubi_err("error %d while writing %d bytes to PEB %d:%d, written %zd bytes",
+ ubi_err(ubi, "error %d while writing %d bytes to PEB %d:%d, written %zd bytes",
err, len, pnum, offset, written);
dump_stack();
ubi_dump_flash(ubi, pnum, offset, len);
@@ -330,7 +331,7 @@ static int do_sync_erase(struct ubi_device *ubi, int pnum)
ubi_assert(pnum >= 0 && pnum < ubi->peb_count);
if (ubi->ro_mode) {
- ubi_err("read-only mode");
+ ubi_err(ubi, "read-only mode");
return -EROFS;
}
@@ -347,12 +348,12 @@ retry:
err = mtd_erase(ubi->mtd, &ei);
if (err) {
if (retries++ < UBI_IO_RETRIES) {
- ubi_warn("error %d while erasing PEB %d, retry",
+ ubi_warn(ubi, "error %d while erasing PEB %d, retry",
err, pnum);
yield();
goto retry;
}
- ubi_err("cannot erase PEB %d, error %d", pnum, err);
+ ubi_err(ubi, "cannot erase PEB %d, error %d", pnum, err);
dump_stack();
return err;
}
@@ -360,17 +361,18 @@ retry:
err = wait_event_interruptible(wq, ei.state == MTD_ERASE_DONE ||
ei.state == MTD_ERASE_FAILED);
if (err) {
- ubi_err("interrupted PEB %d erasure", pnum);
+ ubi_err(ubi, "interrupted PEB %d erasure", pnum);
return -EINTR;
}
if (ei.state == MTD_ERASE_FAILED) {
if (retries++ < UBI_IO_RETRIES) {
- ubi_warn("error while erasing PEB %d, retry", pnum);
+ ubi_warn(ubi, "error while erasing PEB %d, retry",
+ pnum);
yield();
goto retry;
}
- ubi_err("cannot erase PEB %d", pnum);
+ ubi_err(ubi, "cannot erase PEB %d", pnum);
dump_stack();
return -EIO;
}
@@ -380,7 +382,7 @@ retry:
return err;
if (ubi_dbg_is_erase_failure(ubi)) {
- ubi_err("cannot erase PEB %d (emulated)", pnum);
+ ubi_err(ubi, "cannot erase PEB %d (emulated)", pnum);
return -EIO;
}
@@ -403,7 +405,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
{
int err, i, patt_count;
- ubi_msg("run torture test for PEB %d", pnum);
+ ubi_msg(ubi, "run torture test for PEB %d", pnum);
patt_count = ARRAY_SIZE(patterns);
ubi_assert(patt_count > 0);
@@ -420,7 +422,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
err = ubi_check_pattern(ubi->peb_buf, 0xFF, ubi->peb_size);
if (err == 0) {
- ubi_err("erased PEB %d, but a non-0xFF byte found",
+ ubi_err(ubi, "erased PEB %d, but a non-0xFF byte found",
pnum);
err = -EIO;
goto out;
@@ -440,7 +442,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
err = ubi_check_pattern(ubi->peb_buf, patterns[i],
ubi->peb_size);
if (err == 0) {
- ubi_err("pattern %x checking failed for PEB %d",
+ ubi_err(ubi, "pattern %x checking failed for PEB %d",
patterns[i], pnum);
err = -EIO;
goto out;
@@ -448,7 +450,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
}
err = patt_count;
- ubi_msg("PEB %d passed torture test, do not mark it as bad", pnum);
+ ubi_msg(ubi, "PEB %d passed torture test, do not mark it as bad", pnum);
out:
mutex_unlock(&ubi->buf_mutex);
@@ -458,7 +460,7 @@ out:
* has not passed because it happened on a freshly erased
* physical eraseblock which means something is wrong with it.
*/
- ubi_err("read problems on freshly erased PEB %d, must be bad",
+ ubi_err(ubi, "read problems on freshly erased PEB %d, must be bad",
pnum);
err = -EIO;
}
@@ -534,7 +536,7 @@ error:
* it. Supposedly the flash media or the driver is screwed up, so
* return an error.
*/
- ubi_err("cannot invalidate PEB %d, write returned %d", pnum, err);
+ ubi_err(ubi, "cannot invalidate PEB %d, write returned %d", pnum, err);
ubi_dump_flash(ubi, pnum, 0, ubi->peb_size);
return -EIO;
}
@@ -566,7 +568,7 @@ int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)
return err;
if (ubi->ro_mode) {
- ubi_err("read-only mode");
+ ubi_err(ubi, "read-only mode");
return -EROFS;
}
@@ -608,7 +610,7 @@ int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)
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",
+ ubi_err(ubi, "error %d while checking if PEB %d is bad",
ret, pnum);
else if (ret)
dbg_io("PEB %d is bad", pnum);
@@ -634,7 +636,7 @@ int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)
ubi_assert(pnum >= 0 && pnum < ubi->peb_count);
if (ubi->ro_mode) {
- ubi_err("read-only mode");
+ ubi_err(ubi, "read-only mode");
return -EROFS;
}
@@ -643,7 +645,7 @@ int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)
err = mtd_block_markbad(mtd, (loff_t)pnum * ubi->peb_size);
if (err)
- ubi_err("cannot mark PEB %d bad, error %d", pnum, err);
+ ubi_err(ubi, "cannot mark PEB %d bad, error %d", pnum, err);
return err;
}
@@ -666,32 +668,32 @@ static int validate_ec_hdr(const struct ubi_device *ubi,
leb_start = be32_to_cpu(ec_hdr->data_offset);
if (ec_hdr->version != UBI_VERSION) {
- ubi_err("node with incompatible UBI version found: this UBI version is %d, image version is %d",
+ ubi_err(ubi, "node with incompatible UBI version found: this UBI version is %d, image version is %d",
UBI_VERSION, (int)ec_hdr->version);
goto bad;
}
if (vid_hdr_offset != ubi->vid_hdr_offset) {
- ubi_err("bad VID header offset %d, expected %d",
+ ubi_err(ubi, "bad VID header offset %d, expected %d",
vid_hdr_offset, ubi->vid_hdr_offset);
goto bad;
}
if (leb_start != ubi->leb_start) {
- ubi_err("bad data offset %d, expected %d",
+ ubi_err(ubi, "bad data offset %d, expected %d",
leb_start, ubi->leb_start);
goto bad;
}
if (ec < 0 || ec > UBI_MAX_ERASECOUNTER) {
- ubi_err("bad erase counter %lld", ec);
+ ubi_err(ubi, "bad erase counter %lld", ec);
goto bad;
}
return 0;
bad:
- ubi_err("bad EC header");
+ ubi_err(ubi, "bad EC header");
ubi_dump_ec_hdr(ec_hdr);
dump_stack();
return 1;
@@ -757,7 +759,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
if (ubi_check_pattern(ec_hdr, 0xFF, UBI_EC_HDR_SIZE)) {
/* The physical eraseblock is supposedly empty */
if (verbose)
- ubi_warn("no EC header found at PEB %d, only 0xFF bytes",
+ ubi_warn(ubi, "no EC header found at PEB %d, only 0xFF bytes",
pnum);
dbg_bld("no EC header found at PEB %d, only 0xFF bytes",
pnum);
@@ -772,7 +774,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
* 0xFF bytes. Report that the header is corrupted.
*/
if (verbose) {
- ubi_warn("bad magic number at PEB %d: %08x instead of %08x",
+ ubi_warn(ubi, "bad magic number at PEB %d: %08x instead of %08x",
pnum, magic, UBI_EC_HDR_MAGIC);
ubi_dump_ec_hdr(ec_hdr);
}
@@ -786,7 +788,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
if (hdr_crc != crc) {
if (verbose) {
- ubi_warn("bad EC header CRC at PEB %d, calculated %#08x, read %#08x",
+ ubi_warn(ubi, "bad EC header CRC at PEB %d, calculated %#08x, read %#08x",
pnum, crc, hdr_crc);
ubi_dump_ec_hdr(ec_hdr);
}
@@ -802,7 +804,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
/* And of course validate what has just been read from the media */
err = validate_ec_hdr(ubi, ec_hdr);
if (err) {
- ubi_err("validation failed for PEB %d", pnum);
+ ubi_err(ubi, "validation failed for PEB %d", pnum);
return -EINVAL;
}
@@ -849,6 +851,9 @@ int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,
if (err)
return err;
+ if (ubi_dbg_power_cut(ubi, POWER_CUT_EC_WRITE))
+ return -EROFS;
+
err = ubi_io_write(ubi, ec_hdr, pnum, 0, ubi->ec_hdr_alsize);
return err;
}
@@ -876,40 +881,40 @@ static int validate_vid_hdr(const struct ubi_device *ubi,
int usable_leb_size = ubi->leb_size - data_pad;
if (copy_flag != 0 && copy_flag != 1) {
- ubi_err("bad copy_flag");
+ ubi_err(ubi, "bad copy_flag");
goto bad;
}
if (vol_id < 0 || lnum < 0 || data_size < 0 || used_ebs < 0 ||
data_pad < 0) {
- ubi_err("negative values");
+ ubi_err(ubi, "negative values");
goto bad;
}
if (vol_id >= UBI_MAX_VOLUMES && vol_id < UBI_INTERNAL_VOL_START) {
- ubi_err("bad vol_id");
+ ubi_err(ubi, "bad vol_id");
goto bad;
}
if (vol_id < UBI_INTERNAL_VOL_START && compat != 0) {
- ubi_err("bad compat");
+ ubi_err(ubi, "bad compat");
goto bad;
}
if (vol_id >= UBI_INTERNAL_VOL_START && compat != UBI_COMPAT_DELETE &&
compat != UBI_COMPAT_RO && compat != UBI_COMPAT_PRESERVE &&
compat != UBI_COMPAT_REJECT) {
- ubi_err("bad compat");
+ ubi_err(ubi, "bad compat");
goto bad;
}
if (vol_type != UBI_VID_DYNAMIC && vol_type != UBI_VID_STATIC) {
- ubi_err("bad vol_type");
+ ubi_err(ubi, "bad vol_type");
goto bad;
}
if (data_pad >= ubi->leb_size / 2) {
- ubi_err("bad data_pad");
+ ubi_err(ubi, "bad data_pad");
goto bad;
}
@@ -921,45 +926,45 @@ static int validate_vid_hdr(const struct ubi_device *ubi,
* mapped logical eraseblocks.
*/
if (used_ebs == 0) {
- ubi_err("zero used_ebs");
+ ubi_err(ubi, "zero used_ebs");
goto bad;
}
if (data_size == 0) {
- ubi_err("zero data_size");
+ ubi_err(ubi, "zero data_size");
goto bad;
}
if (lnum < used_ebs - 1) {
if (data_size != usable_leb_size) {
- ubi_err("bad data_size");
+ ubi_err(ubi, "bad data_size");
goto bad;
}
} else if (lnum == used_ebs - 1) {
if (data_size == 0) {
- ubi_err("bad data_size at last LEB");
+ ubi_err(ubi, "bad data_size at last LEB");
goto bad;
}
} else {
- ubi_err("too high lnum");
+ ubi_err(ubi, "too high lnum");
goto bad;
}
} else {
if (copy_flag == 0) {
if (data_crc != 0) {
- ubi_err("non-zero data CRC");
+ ubi_err(ubi, "non-zero data CRC");
goto bad;
}
if (data_size != 0) {
- ubi_err("non-zero data_size");
+ ubi_err(ubi, "non-zero data_size");
goto bad;
}
} else {
if (data_size == 0) {
- ubi_err("zero data_size of copy");
+ ubi_err(ubi, "zero data_size of copy");
goto bad;
}
}
if (used_ebs != 0) {
- ubi_err("bad used_ebs");
+ ubi_err(ubi, "bad used_ebs");
goto bad;
}
}
@@ -967,7 +972,7 @@ static int validate_vid_hdr(const struct ubi_device *ubi,
return 0;
bad:
- ubi_err("bad VID header");
+ ubi_err(ubi, "bad VID header");
ubi_dump_vid_hdr(vid_hdr);
dump_stack();
return 1;
@@ -1012,7 +1017,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
if (ubi_check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) {
if (verbose)
- ubi_warn("no VID header found at PEB %d, only 0xFF bytes",
+ ubi_warn(ubi, "no VID header found at PEB %d, only 0xFF bytes",
pnum);
dbg_bld("no VID header found at PEB %d, only 0xFF bytes",
pnum);
@@ -1023,7 +1028,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
}
if (verbose) {
- ubi_warn("bad magic number at PEB %d: %08x instead of %08x",
+ ubi_warn(ubi, "bad magic number at PEB %d: %08x instead of %08x",
pnum, magic, UBI_VID_HDR_MAGIC);
ubi_dump_vid_hdr(vid_hdr);
}
@@ -1037,7 +1042,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
if (hdr_crc != crc) {
if (verbose) {
- ubi_warn("bad CRC at PEB %d, calculated %#08x, read %#08x",
+ ubi_warn(ubi, "bad CRC at PEB %d, calculated %#08x, read %#08x",
pnum, crc, hdr_crc);
ubi_dump_vid_hdr(vid_hdr);
}
@@ -1051,7 +1056,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
err = validate_vid_hdr(ubi, vid_hdr);
if (err) {
- ubi_err("validation failed for PEB %d", pnum);
+ ubi_err(ubi, "validation failed for PEB %d", pnum);
return -EINVAL;
}
@@ -1096,6 +1101,9 @@ int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,
if (err)
return err;
+ if (ubi_dbg_power_cut(ubi, POWER_CUT_VID_WRITE))
+ return -EROFS;
+
p = (char *)vid_hdr - ubi->vid_hdr_shift;
err = ubi_io_write(ubi, p, pnum, ubi->vid_hdr_aloffset,
ubi->vid_hdr_alsize);
@@ -1121,7 +1129,7 @@ static int self_check_not_bad(const struct ubi_device *ubi, int pnum)
if (!err)
return err;
- ubi_err("self-check failed for PEB %d", pnum);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
dump_stack();
return err > 0 ? -EINVAL : err;
}
@@ -1146,14 +1154,14 @@ static int self_check_ec_hdr(const struct ubi_device *ubi, int pnum,
magic = be32_to_cpu(ec_hdr->magic);
if (magic != UBI_EC_HDR_MAGIC) {
- ubi_err("bad magic %#08x, must be %#08x",
+ ubi_err(ubi, "bad magic %#08x, must be %#08x",
magic, UBI_EC_HDR_MAGIC);
goto fail;
}
err = validate_ec_hdr(ubi, ec_hdr);
if (err) {
- ubi_err("self-check failed for PEB %d", pnum);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
goto fail;
}
@@ -1193,8 +1201,9 @@ static int self_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum)
crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC);
hdr_crc = be32_to_cpu(ec_hdr->hdr_crc);
if (hdr_crc != crc) {
- ubi_err("bad CRC, calculated %#08x, read %#08x", crc, hdr_crc);
- ubi_err("self-check failed for PEB %d", pnum);
+ ubi_err(ubi, "bad CRC, calculated %#08x, read %#08x",
+ crc, hdr_crc);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
ubi_dump_ec_hdr(ec_hdr);
dump_stack();
err = -EINVAL;
@@ -1228,21 +1237,21 @@ static int self_check_vid_hdr(const struct ubi_device *ubi, int pnum,
magic = be32_to_cpu(vid_hdr->magic);
if (magic != UBI_VID_HDR_MAGIC) {
- ubi_err("bad VID header magic %#08x at PEB %d, must be %#08x",
+ ubi_err(ubi, "bad VID header magic %#08x at PEB %d, must be %#08x",
magic, pnum, UBI_VID_HDR_MAGIC);
goto fail;
}
err = validate_vid_hdr(ubi, vid_hdr);
if (err) {
- ubi_err("self-check failed for PEB %d", pnum);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
goto fail;
}
return err;
fail:
- ubi_err("self-check failed for PEB %d", pnum);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
ubi_dump_vid_hdr(vid_hdr);
dump_stack();
return -EINVAL;
@@ -1280,9 +1289,9 @@ static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum)
crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_EC_HDR_SIZE_CRC);
hdr_crc = be32_to_cpu(vid_hdr->hdr_crc);
if (hdr_crc != crc) {
- ubi_err("bad VID header CRC at PEB %d, calculated %#08x, read %#08x",
+ ubi_err(ubi, "bad VID header CRC at PEB %d, calculated %#08x, read %#08x",
pnum, crc, hdr_crc);
- ubi_err("self-check failed for PEB %d", pnum);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
ubi_dump_vid_hdr(vid_hdr);
dump_stack();
err = -EINVAL;
@@ -1321,7 +1330,7 @@ static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,
buf1 = __vmalloc(len, GFP_NOFS, PAGE_KERNEL);
if (!buf1) {
- ubi_err("cannot allocate memory to check writes");
+ ubi_err(ubi, "cannot allocate memory to check writes");
return 0;
}
@@ -1339,14 +1348,15 @@ static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,
if (c == c1)
continue;
- ubi_err("self-check failed for PEB %d:%d, len %d",
+ ubi_err(ubi, "self-check failed for PEB %d:%d, len %d",
pnum, offset, len);
- ubi_msg("data differ at position %d", i);
- ubi_msg("hex dump of the original buffer from %d to %d",
+ ubi_msg(ubi, "data differ at position %d", i);
+ dump_len = max_t(int, 128, len - i);
+ ubi_msg(ubi, "hex dump of the original buffer from %d to %d",
i, i + dump_len);
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
buf + i, dump_len, 1);
- ubi_msg("hex dump of the read buffer from %d to %d",
+ ubi_msg(ubi, "hex dump of the read buffer from %d to %d",
i, i + dump_len);
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
buf1 + i, dump_len, 1);
@@ -1386,20 +1396,20 @@ int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
buf = __vmalloc(len, GFP_NOFS, PAGE_KERNEL);
if (!buf) {
- ubi_err("cannot allocate memory to check for 0xFFs");
+ ubi_err(ubi, "cannot allocate memory to check for 0xFFs");
return 0;
}
err = mtd_read(ubi->mtd, addr, len, &read, buf);
if (err && !mtd_is_bitflip(err)) {
- ubi_err("error %d while reading %d bytes from PEB %d:%d, read %zd bytes",
+ ubi_err(ubi, "err %d while reading %d bytes from PEB %d:%d, read %zd bytes",
err, len, pnum, offset, read);
goto error;
}
err = ubi_check_pattern(buf, 0xFF, len);
if (err == 0) {
- ubi_err("flash region at PEB %d:%d, length %d does not contain all 0xFF bytes",
+ ubi_err(ubi, "flash region at PEB %d:%d, length %d does not contain all 0xFF bytes",
pnum, offset, len);
goto fail;
}
@@ -1408,8 +1418,8 @@ int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
return 0;
fail:
- ubi_err("self-check failed for PEB %d", pnum);
- ubi_msg("hex dump of the %d-%d region", offset, offset + len);
+ ubi_err(ubi, "self-check failed for PEB %d", pnum);
+ ubi_msg(ubi, "hex dump of the %d-%d region", offset, offset + len);
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, buf, len, 1);
err = -EINVAL;
error:
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-25 12:03:14 +0000