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path: root/drivers/mtd/ubi/upd.c
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Diffstat (limited to 'drivers/mtd/ubi/upd.c')
-rw-r--r--drivers/mtd/ubi/upd.c104
1 files changed, 53 insertions, 51 deletions
diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index e597f82..220c120 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -26,13 +26,16 @@
* transaction with a roll-back capability.
*/
-#ifdef UBI_LINUX
-#include <linux/err.h>
-#include <asm/uaccess.h>
-#include <asm/div64.h>
+#define __UBOOT__
+#ifndef __UBOOT__
+#include <linux/uaccess.h>
+#else
+#include <div64.h>
+#include <ubi_uboot.h>
#endif
+#include <linux/err.h>
+#include <linux/math64.h>
-#include <ubi_uboot.h>
#include "ubi.h"
/**
@@ -48,22 +51,21 @@ static int set_update_marker(struct ubi_device *ubi, struct ubi_volume *vol)
int err;
struct ubi_vtbl_record vtbl_rec;
- dbg_msg("set update marker for volume %d", vol->vol_id);
+ dbg_gen("set update marker for volume %d", vol->vol_id);
if (vol->upd_marker) {
ubi_assert(ubi->vtbl[vol->vol_id].upd_marker);
- dbg_msg("already set");
+ dbg_gen("already set");
return 0;
}
- memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id],
- sizeof(struct ubi_vtbl_record));
+ vtbl_rec = ubi->vtbl[vol->vol_id];
vtbl_rec.upd_marker = 1;
- mutex_lock(&ubi->volumes_mutex);
+ mutex_lock(&ubi->device_mutex);
err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
- mutex_unlock(&ubi->volumes_mutex);
vol->upd_marker = 1;
+ mutex_unlock(&ubi->device_mutex);
return err;
}
@@ -81,31 +83,29 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol,
long long bytes)
{
int err;
- uint64_t tmp;
struct ubi_vtbl_record vtbl_rec;
- dbg_msg("clear update marker for volume %d", vol->vol_id);
+ dbg_gen("clear update marker for volume %d", vol->vol_id);
- memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id],
- sizeof(struct ubi_vtbl_record));
+ vtbl_rec = ubi->vtbl[vol->vol_id];
ubi_assert(vol->upd_marker && vtbl_rec.upd_marker);
vtbl_rec.upd_marker = 0;
if (vol->vol_type == UBI_STATIC_VOLUME) {
vol->corrupted = 0;
- vol->used_bytes = tmp = bytes;
- vol->last_eb_bytes = do_div(tmp, vol->usable_leb_size);
- vol->used_ebs = tmp;
+ vol->used_bytes = bytes;
+ vol->used_ebs = div_u64_rem(bytes, vol->usable_leb_size,
+ &vol->last_eb_bytes);
if (vol->last_eb_bytes)
vol->used_ebs += 1;
else
vol->last_eb_bytes = vol->usable_leb_size;
}
- mutex_lock(&ubi->volumes_mutex);
+ mutex_lock(&ubi->device_mutex);
err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
- mutex_unlock(&ubi->volumes_mutex);
vol->upd_marker = 0;
+ mutex_unlock(&ubi->device_mutex);
return err;
}
@@ -123,9 +123,8 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol,
long long bytes)
{
int i, err;
- uint64_t tmp;
- dbg_msg("start update of volume %d, %llu bytes", vol->vol_id, bytes);
+ dbg_gen("start update of volume %d, %llu bytes", vol->vol_id, bytes);
ubi_assert(!vol->updating && !vol->changing_leb);
vol->updating = 1;
@@ -141,21 +140,23 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol,
}
if (bytes == 0) {
+ err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
+ if (err)
+ return err;
+
err = clear_update_marker(ubi, vol, 0);
if (err)
return err;
- err = ubi_wl_flush(ubi);
- if (!err)
- vol->updating = 0;
+ vol->updating = 0;
+ return 0;
}
vol->upd_buf = vmalloc(ubi->leb_size);
if (!vol->upd_buf)
return -ENOMEM;
- tmp = bytes;
- vol->upd_ebs = !!do_div(tmp, vol->usable_leb_size);
- vol->upd_ebs += tmp;
+ vol->upd_ebs = div_u64(bytes + vol->usable_leb_size - 1,
+ vol->usable_leb_size);
vol->upd_bytes = bytes;
vol->upd_received = 0;
return 0;
@@ -175,17 +176,15 @@ int ubi_start_leb_change(struct ubi_device *ubi, struct ubi_volume *vol,
{
ubi_assert(!vol->updating && !vol->changing_leb);
- dbg_msg("start changing LEB %d:%d, %u bytes",
+ dbg_gen("start changing LEB %d:%d, %u bytes",
vol->vol_id, req->lnum, req->bytes);
if (req->bytes == 0)
- return ubi_eba_atomic_leb_change(ubi, vol, req->lnum, NULL, 0,
- req->dtype);
+ return ubi_eba_atomic_leb_change(ubi, vol, req->lnum, NULL, 0);
vol->upd_bytes = req->bytes;
vol->upd_received = 0;
vol->changing_leb = 1;
vol->ch_lnum = req->lnum;
- vol->ch_dtype = req->dtype;
vol->upd_buf = vmalloc(req->bytes);
if (!vol->upd_buf)
@@ -234,11 +233,11 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
memset(buf + len, 0xFF, l - len);
len = ubi_calc_data_len(ubi, buf, l);
if (len == 0) {
- dbg_msg("all %d bytes contain 0xFF - skip", len);
+ dbg_gen("all %d bytes contain 0xFF - skip", len);
return 0;
}
- err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len, UBI_UNKNOWN);
+ err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len);
} else {
/*
* When writing static volume, and this is the last logical
@@ -250,8 +249,7 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
* contain zeros, not random trash.
*/
memset(buf + len, 0, vol->usable_leb_size - len);
- err = ubi_eba_write_leb_st(ubi, vol, lnum, buf, len,
- UBI_UNKNOWN, used_ebs);
+ err = ubi_eba_write_leb_st(ubi, vol, lnum, buf, len, used_ebs);
}
return err;
@@ -259,6 +257,7 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
/**
* ubi_more_update_data - write more update data.
+ * @ubi: UBI device description object
* @vol: volume description object
* @buf: write data (user-space memory buffer)
* @count: how much bytes to write
@@ -272,19 +271,20 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol,
const void __user *buf, int count)
{
- uint64_t tmp;
+#ifndef __UBOOT__
int lnum, offs, err = 0, len, to_write = count;
+#else
+ int lnum, err = 0, len, to_write = count;
+ u32 offs;
+#endif
- dbg_msg("write %d of %lld bytes, %lld already passed",
+ dbg_gen("write %d of %lld bytes, %lld already passed",
count, vol->upd_bytes, vol->upd_received);
if (ubi->ro_mode)
return -EROFS;
- tmp = vol->upd_received;
- offs = do_div(tmp, vol->usable_leb_size);
- lnum = tmp;
-
+ lnum = div_u64_rem(vol->upd_received, vol->usable_leb_size, &offs);
if (vol->upd_received + count > vol->upd_bytes)
to_write = count = vol->upd_bytes - vol->upd_received;
@@ -359,16 +359,16 @@ int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol,
ubi_assert(vol->upd_received <= vol->upd_bytes);
if (vol->upd_received == vol->upd_bytes) {
+ err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
+ if (err)
+ return err;
/* The update is finished, clear the update marker */
err = clear_update_marker(ubi, vol, vol->upd_bytes);
if (err)
return err;
- err = ubi_wl_flush(ubi);
- if (err == 0) {
- vol->updating = 0;
- err = to_write;
- vfree(vol->upd_buf);
- }
+ vol->updating = 0;
+ err = to_write;
+ vfree(vol->upd_buf);
}
return err;
@@ -376,6 +376,7 @@ int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol,
/**
* ubi_more_leb_change_data - accept more data for atomic LEB change.
+ * @ubi: UBI device description object
* @vol: volume description object
* @buf: write data (user-space memory buffer)
* @count: how much bytes to write
@@ -392,7 +393,7 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol,
{
int err;
- dbg_msg("write %d of %lld bytes, %lld already passed",
+ dbg_gen("write %d of %lld bytes, %lld already passed",
count, vol->upd_bytes, vol->upd_received);
if (ubi->ro_mode)
@@ -410,10 +411,11 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol,
if (vol->upd_received == vol->upd_bytes) {
int len = ALIGN((int)vol->upd_bytes, ubi->min_io_size);
- memset(vol->upd_buf + vol->upd_bytes, 0xFF, len - vol->upd_bytes);
+ memset(vol->upd_buf + vol->upd_bytes, 0xFF,
+ len - vol->upd_bytes);
len = ubi_calc_data_len(ubi, vol->upd_buf, len);
err = ubi_eba_atomic_leb_change(ubi, vol, vol->ch_lnum,
- vol->upd_buf, len, UBI_UNKNOWN);
+ vol->upd_buf, len);
if (err)
return err;
}
generated by cgit v1.1 at 2024-11-19 01:07:35 +0000