summaryrefslogtreecommitdiff
path: root/drivers/mtd/ubi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/ubi')
-rw-r--r--drivers/mtd/ubi/build.c28
-rw-r--r--drivers/mtd/ubi/eba.c70
-rw-r--r--drivers/mtd/ubi/io.c66
-rw-r--r--drivers/mtd/ubi/scan.c19
-rw-r--r--drivers/mtd/ubi/scan.h8
-rw-r--r--drivers/mtd/ubi/ubi.h30
-rw-r--r--drivers/mtd/ubi/vtbl.c6
-rw-r--r--drivers/mtd/ubi/wl.c4
8 files changed, 119 insertions, 112 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 1cb22bf..0236539 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -565,7 +565,7 @@ static int attach_mtd_dev(const char *mtd_dev, int vid_hdr_offset,
}
ubi = ubi_devices[ubi_devices_cnt] = kzalloc(sizeof(struct ubi_device),
- GFP_KERNEL);
+ GFP_KERNEL);
if (!ubi) {
err = -ENOMEM;
goto out_mtd;
@@ -583,6 +583,22 @@ static int attach_mtd_dev(const char *mtd_dev, int vid_hdr_offset,
if (err)
goto out_free;
+ mutex_init(&ubi->buf_mutex);
+ ubi->peb_buf1 = vmalloc(ubi->peb_size);
+ if (!ubi->peb_buf1)
+ goto out_free;
+
+ ubi->peb_buf2 = vmalloc(ubi->peb_size);
+ if (!ubi->peb_buf2)
+ goto out_free;
+
+#ifdef CONFIG_MTD_UBI_DEBUG
+ mutex_init(&ubi->dbg_buf_mutex);
+ ubi->dbg_peb_buf = vmalloc(ubi->peb_size);
+ if (!ubi->dbg_peb_buf)
+ goto out_free;
+#endif
+
err = attach_by_scanning(ubi);
if (err) {
dbg_err("failed to attach by scanning, error %d", err);
@@ -630,6 +646,11 @@ out_detach:
ubi_wl_close(ubi);
vfree(ubi->vtbl);
out_free:
+ vfree(ubi->peb_buf1);
+ vfree(ubi->peb_buf2);
+#ifdef CONFIG_MTD_UBI_DEBUG
+ vfree(ubi->dbg_peb_buf);
+#endif
kfree(ubi);
out_mtd:
put_mtd_device(mtd);
@@ -651,6 +672,11 @@ static void detach_mtd_dev(struct ubi_device *ubi)
ubi_wl_close(ubi);
vfree(ubi->vtbl);
put_mtd_device(ubi->mtd);
+ vfree(ubi->peb_buf1);
+ vfree(ubi->peb_buf2);
+#ifdef CONFIG_MTD_UBI_DEBUG
+ vfree(ubi->dbg_peb_buf);
+#endif
kfree(ubi_devices[ubi_num]);
ubi_devices[ubi_num] = NULL;
ubi_devices_cnt -= 1;
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 8919310..81bb6a3 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -495,16 +495,18 @@ static int recover_peb(struct ubi_device *ubi, int pnum, int vol_id, int lnum,
int err, idx = vol_id2idx(ubi, vol_id), new_pnum, data_size, tries = 0;
struct ubi_volume *vol = ubi->volumes[idx];
struct ubi_vid_hdr *vid_hdr;
- unsigned char *new_buf;
vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_NOFS);
if (!vid_hdr) {
return -ENOMEM;
}
+ mutex_lock(&ubi->buf_mutex);
+
retry:
new_pnum = ubi_wl_get_peb(ubi, UBI_UNKNOWN);
if (new_pnum < 0) {
+ mutex_unlock(&ubi->buf_mutex);
ubi_free_vid_hdr(ubi, vid_hdr);
return new_pnum;
}
@@ -524,31 +526,22 @@ retry:
goto write_error;
data_size = offset + len;
- new_buf = vmalloc(data_size);
- if (!new_buf) {
- err = -ENOMEM;
- goto out_put;
- }
- memset(new_buf + offset, 0xFF, len);
+ memset(ubi->peb_buf1 + offset, 0xFF, len);
/* Read everything before the area where the write failure happened */
if (offset > 0) {
- err = ubi_io_read_data(ubi, new_buf, pnum, 0, offset);
- if (err && err != UBI_IO_BITFLIPS) {
- vfree(new_buf);
+ err = ubi_io_read_data(ubi, ubi->peb_buf1, pnum, 0, offset);
+ if (err && err != UBI_IO_BITFLIPS)
goto out_put;
- }
}
- memcpy(new_buf + offset, buf, len);
+ memcpy(ubi->peb_buf1 + offset, buf, len);
- err = ubi_io_write_data(ubi, new_buf, new_pnum, 0, data_size);
- if (err) {
- vfree(new_buf);
+ err = ubi_io_write_data(ubi, ubi->peb_buf1, new_pnum, 0, data_size);
+ if (err)
goto write_error;
- }
- vfree(new_buf);
+ mutex_unlock(&ubi->buf_mutex);
ubi_free_vid_hdr(ubi, vid_hdr);
vol->eba_tbl[lnum] = new_pnum;
@@ -558,6 +551,7 @@ retry:
return 0;
out_put:
+ mutex_unlock(&ubi->buf_mutex);
ubi_wl_put_peb(ubi, new_pnum, 1);
ubi_free_vid_hdr(ubi, vid_hdr);
return err;
@@ -570,6 +564,7 @@ write_error:
ubi_warn("failed to write to PEB %d", new_pnum);
ubi_wl_put_peb(ubi, new_pnum, 1);
if (++tries > UBI_IO_RETRIES) {
+ mutex_unlock(&ubi->buf_mutex);
ubi_free_vid_hdr(ubi, vid_hdr);
return err;
}
@@ -965,7 +960,6 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
int err, vol_id, lnum, data_size, aldata_size, pnum, idx;
struct ubi_volume *vol;
uint32_t crc;
- void *buf, *buf1 = NULL;
vol_id = be32_to_cpu(vid_hdr->vol_id);
lnum = be32_to_cpu(vid_hdr->lnum);
@@ -979,19 +973,15 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
data_size = aldata_size =
ubi->leb_size - be32_to_cpu(vid_hdr->data_pad);
- buf = vmalloc(aldata_size);
- if (!buf)
- return -ENOMEM;
-
/*
* We do not want anybody to write to this logical eraseblock while we
* are moving it, so we lock it.
*/
err = leb_write_lock(ubi, vol_id, lnum);
- if (err) {
- vfree(buf);
+ if (err)
return err;
- }
+
+ mutex_lock(&ubi->buf_mutex);
/*
* But the logical eraseblock might have been put by this time.
@@ -1023,7 +1013,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
/* OK, now the LEB is locked and we can safely start moving it */
dbg_eba("read %d bytes of data", aldata_size);
- err = ubi_io_read_data(ubi, buf, from, 0, aldata_size);
+ err = ubi_io_read_data(ubi, ubi->peb_buf1, from, 0, aldata_size);
if (err && err != UBI_IO_BITFLIPS) {
ubi_warn("error %d while reading data from PEB %d",
err, from);
@@ -1042,10 +1032,10 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
*/
if (vid_hdr->vol_type == UBI_VID_DYNAMIC)
aldata_size = data_size =
- ubi_calc_data_len(ubi, buf, data_size);
+ ubi_calc_data_len(ubi, ubi->peb_buf1, data_size);
cond_resched();
- crc = crc32(UBI_CRC32_INIT, buf, data_size);
+ crc = crc32(UBI_CRC32_INIT, ubi->peb_buf1, data_size);
cond_resched();
/*
@@ -1076,23 +1066,18 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
}
if (data_size > 0) {
- err = ubi_io_write_data(ubi, buf, to, 0, aldata_size);
+ err = ubi_io_write_data(ubi, ubi->peb_buf1, to, 0, aldata_size);
if (err)
goto out_unlock;
+ cond_resched();
+
/*
* We've written the data and are going to read it back to make
* sure it was written correctly.
*/
- buf1 = vmalloc(aldata_size);
- if (!buf1) {
- err = -ENOMEM;
- goto out_unlock;
- }
- cond_resched();
-
- err = ubi_io_read_data(ubi, buf1, to, 0, aldata_size);
+ err = ubi_io_read_data(ubi, ubi->peb_buf2, to, 0, aldata_size);
if (err) {
if (err != UBI_IO_BITFLIPS)
ubi_warn("cannot read data back from PEB %d",
@@ -1102,7 +1087,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
cond_resched();
- if (memcmp(buf, buf1, aldata_size)) {
+ if (memcmp(ubi->peb_buf1, ubi->peb_buf2, aldata_size)) {
ubi_warn("read data back from PEB %d - it is different",
to);
goto out_unlock;
@@ -1112,16 +1097,9 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
ubi_assert(vol->eba_tbl[lnum] == from);
vol->eba_tbl[lnum] = to;
- leb_write_unlock(ubi, vol_id, lnum);
- vfree(buf);
- vfree(buf1);
-
- return 0;
-
out_unlock:
+ mutex_unlock(&ubi->buf_mutex);
leb_write_unlock(ubi, vol_id, lnum);
- vfree(buf);
- vfree(buf1);
return err;
}
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index ba5bc4a..52476d8 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -98,8 +98,8 @@ static int paranoid_check_ec_hdr(const struct ubi_device *ubi, int pnum,
static int paranoid_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum);
static int paranoid_check_vid_hdr(const struct ubi_device *ubi, int pnum,
const struct ubi_vid_hdr *vid_hdr);
-static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum,
- int offset, int len);
+static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
+ int len);
#else
#define paranoid_check_not_bad(ubi, pnum) 0
#define paranoid_check_peb_ec_hdr(ubi, pnum) 0
@@ -202,8 +202,8 @@ retry:
* Note, in case of an error, it is possible that something was still written
* to the flash media, but may be some garbage.
*/
-int ubi_io_write(const struct ubi_device *ubi, const void *buf, int pnum,
- int offset, int len)
+int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
+ int len)
{
int err;
size_t written;
@@ -285,7 +285,7 @@ static void erase_callback(struct erase_info *ei)
* zero in case of success and a negative error code in case of failure. If
* %-EIO is returned, the physical eraseblock most probably went bad.
*/
-static int do_sync_erase(const struct ubi_device *ubi, int pnum)
+static int do_sync_erase(struct ubi_device *ubi, int pnum)
{
int err, retries = 0;
struct erase_info ei;
@@ -377,29 +377,25 @@ static uint8_t patterns[] = {0xa5, 0x5a, 0x0};
* test, a positive number of erase operations done if the test was
* successfully passed, and other negative error codes in case of other errors.
*/
-static int torture_peb(const struct ubi_device *ubi, int pnum)
+static int torture_peb(struct ubi_device *ubi, int pnum)
{
- void *buf;
int err, i, patt_count;
- buf = vmalloc(ubi->peb_size);
- if (!buf)
- return -ENOMEM;
-
patt_count = ARRAY_SIZE(patterns);
ubi_assert(patt_count > 0);
+ mutex_lock(&ubi->buf_mutex);
for (i = 0; i < patt_count; i++) {
err = do_sync_erase(ubi, pnum);
if (err)
goto out;
/* Make sure the PEB contains only 0xFF bytes */
- err = ubi_io_read(ubi, buf, pnum, 0, ubi->peb_size);
+ err = ubi_io_read(ubi, ubi->peb_buf1, pnum, 0, ubi->peb_size);
if (err)
goto out;
- err = check_pattern(buf, 0xFF, ubi->peb_size);
+ err = check_pattern(ubi->peb_buf1, 0xFF, ubi->peb_size);
if (err == 0) {
ubi_err("erased PEB %d, but a non-0xFF byte found",
pnum);
@@ -408,17 +404,17 @@ static int torture_peb(const struct ubi_device *ubi, int pnum)
}
/* Write a pattern and check it */
- memset(buf, patterns[i], ubi->peb_size);
- err = ubi_io_write(ubi, buf, pnum, 0, ubi->peb_size);
+ memset(ubi->peb_buf1, patterns[i], ubi->peb_size);
+ err = ubi_io_write(ubi, ubi->peb_buf1, pnum, 0, ubi->peb_size);
if (err)
goto out;
- memset(buf, ~patterns[i], ubi->peb_size);
- err = ubi_io_read(ubi, buf, pnum, 0, ubi->peb_size);
+ memset(ubi->peb_buf1, ~patterns[i], ubi->peb_size);
+ err = ubi_io_read(ubi, ubi->peb_buf1, pnum, 0, ubi->peb_size);
if (err)
goto out;
- err = check_pattern(buf, patterns[i], ubi->peb_size);
+ err = check_pattern(ubi->peb_buf1, patterns[i], ubi->peb_size);
if (err == 0) {
ubi_err("pattern %x checking failed for PEB %d",
patterns[i], pnum);
@@ -430,6 +426,7 @@ static int torture_peb(const struct ubi_device *ubi, int pnum)
err = patt_count;
out:
+ mutex_unlock(&ubi->buf_mutex);
if (err == UBI_IO_BITFLIPS || err == -EBADMSG) {
/*
* If a bit-flip or data integrity error was detected, the test
@@ -440,7 +437,6 @@ out:
pnum);
err = -EIO;
}
- vfree(buf);
return err;
}
@@ -460,7 +456,7 @@ out:
* codes in case of other errors. Note, %-EIO means that the physical
* eraseblock is bad.
*/
-int ubi_io_sync_erase(const struct ubi_device *ubi, int pnum, int torture)
+int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)
{
int err, ret = 0;
@@ -617,7 +613,7 @@ bad:
* o %UBI_IO_PEB_EMPTY if the physical eraseblock is empty;
* o a negative error code in case of failure.
*/
-int ubi_io_read_ec_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
struct ubi_ec_hdr *ec_hdr, int verbose)
{
int err, read_err = 0;
@@ -723,7 +719,7 @@ int ubi_io_read_ec_hdr(const struct ubi_device *ubi, int pnum,
* case of failure. If %-EIO is returned, the physical eraseblock most probably
* went bad.
*/
-int ubi_io_write_ec_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,
struct ubi_ec_hdr *ec_hdr)
{
int err;
@@ -889,7 +885,7 @@ bad:
* header there);
* o a negative error code in case of failure.
*/
-int ubi_io_read_vid_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
struct ubi_vid_hdr *vid_hdr, int verbose)
{
int err, read_err = 0;
@@ -996,7 +992,7 @@ int ubi_io_read_vid_hdr(const struct ubi_device *ubi, int pnum,
* case of failure. If %-EIO is returned, the physical eraseblock probably went
* bad.
*/
-int ubi_io_write_vid_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,
struct ubi_vid_hdr *vid_hdr)
{
int err;
@@ -1219,44 +1215,40 @@ exit:
* @offset of the physical eraseblock @pnum, %1 if not, and a negative error
* code if an error occurred.
*/
-static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum,
- int offset, int len)
+static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
+ int len)
{
size_t read;
int err;
- void *buf;
loff_t addr = (loff_t)pnum * ubi->peb_size + offset;
- buf = vmalloc(len);
- if (!buf)
- return -ENOMEM;
- memset(buf, 0, len);
-
- err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
+ mutex_lock(&ubi->dbg_buf_mutex);
+ err = ubi->mtd->read(ubi->mtd, addr, len, &read, ubi->dbg_peb_buf);
if (err && err != -EUCLEAN) {
ubi_err("error %d while reading %d bytes from PEB %d:%d, "
"read %zd bytes", err, len, pnum, offset, read);
goto error;
}
- err = check_pattern(buf, 0xFF, len);
+ err = check_pattern(ubi->dbg_peb_buf, 0xFF, len);
if (err == 0) {
ubi_err("flash region at PEB %d:%d, length %d does not "
"contain all 0xFF bytes", pnum, offset, len);
goto fail;
}
+ mutex_unlock(&ubi->dbg_buf_mutex);
- vfree(buf);
return 0;
fail:
ubi_err("paranoid check failed for PEB %d", pnum);
dbg_msg("hex dump of the %d-%d region", offset, offset + len);
- print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 4, buf, len, 1);
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 4,
+ ubi->dbg_peb_buf, len, 1);
err = 1;
error:
ubi_dbg_dump_stack();
- vfree(buf);
+ mutex_unlock(&ubi->dbg_buf_mutex);
return err;
}
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 1c1401d..44d87e8 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -45,8 +45,7 @@
#include "ubi.h"
#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
-static int paranoid_check_si(const struct ubi_device *ubi,
- struct ubi_scan_info *si);
+static int paranoid_check_si(struct ubi_device *ubi, struct ubi_scan_info *si);
#else
#define paranoid_check_si(ubi, si) 0
#endif
@@ -259,9 +258,8 @@ static struct ubi_scan_volume *add_volume(struct ubi_scan_info *si, int vol_id,
* o bit 2 is cleared: the older LEB is not corrupted;
* o bit 2 is set: the older LEB is corrupted.
*/
-static int compare_lebs(const struct ubi_device *ubi,
- const struct ubi_scan_leb *seb, int pnum,
- const struct ubi_vid_hdr *vid_hdr)
+static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb,
+ int pnum, const struct ubi_vid_hdr *vid_hdr)
{
void *buf;
int len, err, second_is_newer, bitflips = 0, corrupted = 0;
@@ -413,7 +411,7 @@ out_free_vidh:
* to be picked, while the older one has to be dropped. This function returns
* zero in case of success and a negative error code in case of failure.
*/
-int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si,
+int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si,
int pnum, int ec, const struct ubi_vid_hdr *vid_hdr,
int bitflips)
{
@@ -667,8 +665,8 @@ void ubi_scan_rm_volume(struct ubi_scan_info *si, struct ubi_scan_volume *sv)
* function returns zero in case of success and a negative error code in case
* of failure.
*/
-int ubi_scan_erase_peb(const struct ubi_device *ubi,
- const struct ubi_scan_info *si, int pnum, int ec)
+int ubi_scan_erase_peb(struct ubi_device *ubi, const struct ubi_scan_info *si,
+ int pnum, int ec)
{
int err;
struct ubi_ec_hdr *ec_hdr;
@@ -712,7 +710,7 @@ out_free:
* This function returns scanning physical eraseblock information in case of
* success and an error code in case of failure.
*/
-struct ubi_scan_leb *ubi_scan_get_free_peb(const struct ubi_device *ubi,
+struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi,
struct ubi_scan_info *si)
{
int err = 0, i;
@@ -1110,8 +1108,7 @@ void ubi_scan_destroy_si(struct ubi_scan_info *si)
* This function returns zero if the scanning information is all right, %1 if
* not and a negative error code if an error occurred.
*/
-static int paranoid_check_si(const struct ubi_device *ubi,
- struct ubi_scan_info *si)
+static int paranoid_check_si(struct ubi_device *ubi, struct ubi_scan_info *si)
{
int pnum, err, vols_found = 0;
struct rb_node *rb1, *rb2;
diff --git a/drivers/mtd/ubi/scan.h b/drivers/mtd/ubi/scan.h
index 140e82e..46d444a 100644
--- a/drivers/mtd/ubi/scan.h
+++ b/drivers/mtd/ubi/scan.h
@@ -147,7 +147,7 @@ static inline void ubi_scan_move_to_list(struct ubi_scan_volume *sv,
list_add_tail(&seb->u.list, list);
}
-int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si,
+int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si,
int pnum, int ec, const struct ubi_vid_hdr *vid_hdr,
int bitflips);
struct ubi_scan_volume *ubi_scan_find_sv(const struct ubi_scan_info *si,
@@ -155,10 +155,10 @@ struct ubi_scan_volume *ubi_scan_find_sv(const struct ubi_scan_info *si,
struct ubi_scan_leb *ubi_scan_find_seb(const struct ubi_scan_volume *sv,
int lnum);
void ubi_scan_rm_volume(struct ubi_scan_info *si, struct ubi_scan_volume *sv);
-struct ubi_scan_leb *ubi_scan_get_free_peb(const struct ubi_device *ubi,
+struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi,
struct ubi_scan_info *si);
-int ubi_scan_erase_peb(const struct ubi_device *ubi,
- const struct ubi_scan_info *si, int pnum, int ec);
+int ubi_scan_erase_peb(struct ubi_device *ubi, const struct ubi_scan_info *si,
+ int pnum, int ec);
struct ubi_scan_info *ubi_scan(struct ubi_device *ubi);
void ubi_scan_destroy_si(struct ubi_scan_info *si);
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 3296631..cc01011 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -274,6 +274,12 @@ struct ubi_wl_entry;
* @bad_allowed: whether the MTD device admits of bad physical eraseblocks or
* not
* @mtd: MTD device descriptor
+ *
+ * @peb_buf1: a buffer of PEB size used for different purposes
+ * @peb_buf2: another buffer of PEB size used for different purposes
+ * @buf_mutex: proptects @peb_buf1 and @peb_buf2
+ * @dbg_peb_buf: buffer of PEB size used for debugging
+ * @dbg_buf_mutex: proptects @dbg_peb_buf
*/
struct ubi_device {
struct cdev cdev;
@@ -343,6 +349,14 @@ struct ubi_device {
int vid_hdr_shift;
int bad_allowed;
struct mtd_info *mtd;
+
+ void *peb_buf1;
+ void *peb_buf2;
+ struct mutex buf_mutex;
+#ifdef CONFIG_MTD_UBI_DEBUG
+ void *dbg_peb_buf;
+ struct mutex dbg_buf_mutex;
+#endif
};
extern struct file_operations ubi_cdev_operations;
@@ -409,18 +423,18 @@ void ubi_wl_close(struct ubi_device *ubi);
/* io.c */
int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
int len);
-int ubi_io_write(const struct ubi_device *ubi, const void *buf, int pnum,
- int offset, int len);
-int ubi_io_sync_erase(const struct ubi_device *ubi, int pnum, int torture);
+int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
+ int len);
+int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture);
int ubi_io_is_bad(const struct ubi_device *ubi, int pnum);
int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum);
-int ubi_io_read_ec_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
struct ubi_ec_hdr *ec_hdr, int verbose);
-int ubi_io_write_ec_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,
struct ubi_ec_hdr *ec_hdr);
-int ubi_io_read_vid_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
struct ubi_vid_hdr *vid_hdr, int verbose);
-int ubi_io_write_vid_hdr(const struct ubi_device *ubi, int pnum,
+int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,
struct ubi_vid_hdr *vid_hdr);
/*
@@ -494,7 +508,7 @@ static inline int ubi_io_read_data(const struct ubi_device *ubi, void *buf,
* the beginning of the logical eraseblock, not to the beginning of the
* physical eraseblock.
*/
-static inline int ubi_io_write_data(const struct ubi_device *ubi, const void *buf,
+static inline int ubi_io_write_data(struct ubi_device *ubi, const void *buf,
int pnum, int offset, int len)
{
ubi_assert(offset >= 0);
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index b0a1e84..25b3bd6 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -254,7 +254,7 @@ bad:
* This function returns zero in case of success and a negative error code in
* case of failure.
*/
-static int create_vtbl(const struct ubi_device *ubi, struct ubi_scan_info *si,
+static int create_vtbl(struct ubi_device *ubi, struct ubi_scan_info *si,
int copy, void *vtbl)
{
int err, tries = 0;
@@ -339,7 +339,7 @@ out_free:
* not corrupted, and recovering from corruptions if needed. Returns volume
* table in case of success and a negative error code in case of failure.
*/
-static struct ubi_vtbl_record *process_lvol(const struct ubi_device *ubi,
+static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi,
struct ubi_scan_info *si,
struct ubi_scan_volume *sv)
{
@@ -453,7 +453,7 @@ out_free:
* This function returns volume table contents in case of success and a
* negative error code in case of failure.
*/
-static struct ubi_vtbl_record *create_empty_lvol(const struct ubi_device *ubi,
+static struct ubi_vtbl_record *create_empty_lvol(struct ubi_device *ubi,
struct ubi_scan_info *si)
{
int i;
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 248ff9e..6e5315b 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -208,7 +208,7 @@ struct ubi_work {
};
#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
-static int paranoid_check_ec(const struct ubi_device *ubi, int pnum, int ec);
+static int paranoid_check_ec(struct ubi_device *ubi, int pnum, int ec);
static int paranoid_check_in_wl_tree(struct ubi_wl_entry *e,
struct rb_root *root);
#else
@@ -1625,7 +1625,7 @@ void ubi_wl_close(struct ubi_device *ubi)
* is equivalent to @ec, %1 if not, and a negative error code if an error
* occurred.
*/
-static int paranoid_check_ec(const struct ubi_device *ubi, int pnum, int ec)
+static int paranoid_check_ec(struct ubi_device *ubi, int pnum, int ec)
{
int err;
long long read_ec;
generated by cgit v0.10.2 at 2024-10-30 13:38:04 (GMT)