UBI: improve internal interfaces
Pass volume description object to the EBA function which makes
more sense, and EBA function do not have to find the volume
description object by volume ID.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index b85ca18..5d00364 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -249,7 +249,7 @@
for (i = 0; i < ubi->vtbl_slots; i++)
if (ubi->volumes[i])
- ubi_free_volume(ubi, i);
+ ubi_free_volume(ubi, ubi->volumes[i]);
}
/**
@@ -300,7 +300,7 @@
for (i = 0; i < ubi->vtbl_slots; i++)
if (ubi->volumes[i]) {
- err = ubi_add_volume(ubi, i);
+ err = ubi_add_volume(ubi, ubi->volumes[i]);
if (err) {
ubi_err("cannot add volume %d", i);
goto out_volumes;
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 7697eda..24344ba 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -249,7 +249,7 @@
if (off + len >= vol->usable_leb_size)
len = vol->usable_leb_size - off;
- err = ubi_eba_read_leb(ubi, vol_id, lnum, tbuf, off, len, 0);
+ err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0);
if (err)
break;
@@ -339,7 +339,7 @@
break;
}
- err = ubi_eba_write_leb(ubi, vol_id, lnum, tbuf, off, len,
+ err = ubi_eba_write_leb(ubi, vol, lnum, tbuf, off, len,
UBI_UNKNOWN);
if (err)
break;
@@ -484,7 +484,7 @@
}
dbg_msg("erase LEB %d:%d", vol->vol_id, lnum);
- err = ubi_eba_unmap_leb(ubi, vol->vol_id, lnum);
+ err = ubi_eba_unmap_leb(ubi, vol, lnum);
if (err)
break;
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 5fdb31b..b2b0f29 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -289,17 +289,17 @@
/**
* ubi_eba_unmap_leb - un-map logical eraseblock.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume description object
* @lnum: logical eraseblock number
*
* This function un-maps logical eraseblock @lnum and schedules corresponding
* physical eraseblock for erasure. Returns zero in case of success and a
* negative error code in case of failure.
*/
-int ubi_eba_unmap_leb(struct ubi_device *ubi, int vol_id, int lnum)
+int ubi_eba_unmap_leb(struct ubi_device *ubi, struct ubi_volume *vol,
+ int lnum)
{
- int idx = vol_id2idx(ubi, vol_id), err, pnum;
- struct ubi_volume *vol = ubi->volumes[idx];
+ int err, pnum, vol_id = vol->vol_id;
if (ubi->ro_mode)
return -EROFS;
@@ -326,7 +326,7 @@
/**
* ubi_eba_read_leb - read data.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume description object
* @lnum: logical eraseblock number
* @buf: buffer to store the read data
* @offset: offset from where to read
@@ -342,12 +342,11 @@
* returned for any volume type if an ECC error was detected by the MTD device
* driver. Other negative error cored may be returned in case of other errors.
*/
-int ubi_eba_read_leb(struct ubi_device *ubi, int vol_id, int lnum, void *buf,
- int offset, int len, int check)
+int ubi_eba_read_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
+ void *buf, int offset, int len, int check)
{
- int err, pnum, scrub = 0, idx = vol_id2idx(ubi, vol_id);
+ int err, pnum, scrub = 0, vol_id = vol->vol_id;
struct ubi_vid_hdr *vid_hdr;
- struct ubi_volume *vol = ubi->volumes[idx];
uint32_t uninitialized_var(crc);
err = leb_read_lock(ubi, vol_id, lnum);
@@ -555,7 +554,7 @@
/**
* ubi_eba_write_leb - write data to dynamic volume.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume description object
* @lnum: logical eraseblock number
* @buf: the data to write
* @offset: offset within the logical eraseblock where to write
@@ -563,15 +562,14 @@
* @dtype: data type
*
* This function writes data to logical eraseblock @lnum of a dynamic volume
- * @vol_id. Returns zero in case of success and a negative error code in case
+ * @vol. Returns zero in case of success and a negative error code in case
* of failure. In case of error, it is possible that something was still
* written to the flash media, but may be some garbage.
*/
-int ubi_eba_write_leb(struct ubi_device *ubi, int vol_id, int lnum,
+int ubi_eba_write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
const void *buf, int offset, int len, int dtype)
{
- int idx = vol_id2idx(ubi, vol_id), err, pnum, tries = 0;
- struct ubi_volume *vol = ubi->volumes[idx];
+ int err, pnum, tries = 0, vol_id = vol->vol_id;
struct ubi_vid_hdr *vid_hdr;
if (ubi->ro_mode)
@@ -590,7 +588,8 @@
if (err) {
ubi_warn("failed to write data to PEB %d", pnum);
if (err == -EIO && ubi->bad_allowed)
- err = recover_peb(ubi, pnum, vol_id, lnum, buf, offset, len);
+ err = recover_peb(ubi, pnum, vol_id, lnum, buf,
+ offset, len);
if (err)
ubi_ro_mode(ubi);
}
@@ -678,7 +677,7 @@
/**
* ubi_eba_write_leb_st - write data to static volume.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume description object
* @lnum: logical eraseblock number
* @buf: data to write
* @len: how many bytes to write
@@ -686,7 +685,7 @@
* @used_ebs: how many logical eraseblocks will this volume contain
*
* This function writes data to logical eraseblock @lnum of static volume
- * @vol_id. The @used_ebs argument should contain total number of logical
+ * @vol. The @used_ebs argument should contain total number of logical
* eraseblock in this static volume.
*
* When writing to the last logical eraseblock, the @len argument doesn't have
@@ -698,12 +697,11 @@
* volumes. This function returns zero in case of success and a negative error
* code in case of failure.
*/
-int ubi_eba_write_leb_st(struct ubi_device *ubi, int vol_id, int lnum,
- const void *buf, int len, int dtype, int used_ebs)
+int ubi_eba_write_leb_st(struct ubi_device *ubi, struct ubi_volume *vol,
+ int lnum, const void *buf, int len, int dtype,
+ int used_ebs)
{
- int err, pnum, tries = 0, data_size = len;
- int idx = vol_id2idx(ubi, vol_id);
- struct ubi_volume *vol = ubi->volumes[idx];
+ int err, pnum, tries = 0, data_size = len, vol_id = vol->vol_id;
struct ubi_vid_hdr *vid_hdr;
uint32_t crc;
@@ -799,7 +797,7 @@
/*
* ubi_eba_atomic_leb_change - change logical eraseblock atomically.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume escription object
* @lnum: logical eraseblock number
* @buf: data to write
* @len: how many bytes to write
@@ -814,11 +812,10 @@
* UBI reserves one LEB for the "atomic LEB change" operation, so only one
* LEB change may be done at a time. This is ensured by @ubi->alc_mutex.
*/
-int ubi_eba_atomic_leb_change(struct ubi_device *ubi, int vol_id, int lnum,
- const void *buf, int len, int dtype)
+int ubi_eba_atomic_leb_change(struct ubi_device *ubi, struct ubi_volume *vol,
+ int lnum, const void *buf, int len, int dtype)
{
- int err, pnum, tries = 0, idx = vol_id2idx(ubi, vol_id);
- struct ubi_volume *vol = ubi->volumes[idx];
+ int err, pnum, tries = 0, vol_id = vol->vol_id;
struct ubi_vid_hdr *vid_hdr;
uint32_t crc;
diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c
index 41ff74c..d397219 100644
--- a/drivers/mtd/ubi/gluebi.c
+++ b/drivers/mtd/ubi/gluebi.c
@@ -129,8 +129,7 @@
if (to_read > total_read)
to_read = total_read;
- err = ubi_eba_read_leb(ubi, vol->vol_id, lnum, buf, offs,
- to_read, 0);
+ err = ubi_eba_read_leb(ubi, vol, lnum, buf, offs, to_read, 0);
if (err)
break;
@@ -187,8 +186,8 @@
if (to_write > total_written)
to_write = total_written;
- err = ubi_eba_write_leb(ubi, vol->vol_id, lnum, buf, offs,
- to_write, UBI_UNKNOWN);
+ err = ubi_eba_write_leb(ubi, vol, lnum, buf, offs, to_write,
+ UBI_UNKNOWN);
if (err)
break;
@@ -237,7 +236,7 @@
return -EROFS;
for (i = 0; i < count; i++) {
- err = ubi_eba_unmap_leb(ubi, vol->vol_id, lnum + i);
+ err = ubi_eba_unmap_leb(ubi, vol, lnum + i);
if (err)
goto out_err;
}
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index 3bf2c95..c2fafe6 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -332,7 +332,7 @@
if (len == 0)
return 0;
- err = ubi_eba_read_leb(ubi, vol_id, lnum, buf, offset, len, check);
+ err = ubi_eba_read_leb(ubi, vol, lnum, buf, offset, len, check);
if (err && err == -EBADMSG && vol->vol_type == UBI_STATIC_VOLUME) {
ubi_warn("mark volume %d as corrupted", vol_id);
vol->corrupted = 1;
@@ -399,7 +399,7 @@
if (len == 0)
return 0;
- return ubi_eba_write_leb(ubi, vol_id, lnum, buf, offset, len, dtype);
+ return ubi_eba_write_leb(ubi, vol, lnum, buf, offset, len, dtype);
}
EXPORT_SYMBOL_GPL(ubi_leb_write);
@@ -448,7 +448,7 @@
if (len == 0)
return 0;
- return ubi_eba_atomic_leb_change(ubi, vol_id, lnum, buf, len, dtype);
+ return ubi_eba_atomic_leb_change(ubi, vol, lnum, buf, len, dtype);
}
EXPORT_SYMBOL_GPL(ubi_leb_change);
@@ -481,7 +481,7 @@
if (vol->upd_marker)
return -EBADF;
- err = ubi_eba_unmap_leb(ubi, vol_id, lnum);
+ err = ubi_eba_unmap_leb(ubi, vol, lnum);
if (err)
return err;
@@ -542,7 +542,7 @@
if (vol->upd_marker)
return -EBADF;
- return ubi_eba_unmap_leb(ubi, vol_id, lnum);
+ return ubi_eba_unmap_leb(ubi, vol, lnum);
}
EXPORT_SYMBOL_GPL(ubi_leb_unmap);
@@ -587,7 +587,7 @@
if (vol->eba_tbl[lnum] >= 0)
return -EBADMSG;
- return ubi_eba_write_leb(ubi, vol_id, lnum, NULL, 0, 0, dtype);
+ return ubi_eba_write_leb(ubi, vol, lnum, NULL, 0, 0, dtype);
}
EXPORT_SYMBOL_GPL(ubi_leb_map);
diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c
index 9e2338c..93e0528 100644
--- a/drivers/mtd/ubi/misc.c
+++ b/drivers/mtd/ubi/misc.c
@@ -79,7 +79,7 @@
else
size = vol->usable_leb_size;
- err = ubi_eba_read_leb(ubi, vol_id, i, buf, 0, size, 1);
+ err = ubi_eba_read_leb(ubi, vol, i, buf, 0, size, 1);
if (err) {
if (err == -EBADMSG)
err = 1;
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 23875bf..0a3a803 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -410,8 +410,8 @@
int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req);
int ubi_remove_volume(struct ubi_volume_desc *desc);
int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs);
-int ubi_add_volume(struct ubi_device *ubi, int vol_id);
-void ubi_free_volume(struct ubi_device *ubi, int vol_id);
+int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol);
+void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol);
/* upd.c */
int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes);
@@ -435,16 +435,17 @@
#endif
/* eba.c */
-int ubi_eba_unmap_leb(struct ubi_device *ubi, int vol_id, int lnum);
-int ubi_eba_read_leb(struct ubi_device *ubi, int vol_id, int lnum, void *buf,
- int offset, int len, int check);
-int ubi_eba_write_leb(struct ubi_device *ubi, int vol_id, int lnum,
+int ubi_eba_unmap_leb(struct ubi_device *ubi, struct ubi_volume *vol,
+ int lnum);
+int ubi_eba_read_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
+ void *buf, int offset, int len, int check);
+int ubi_eba_write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
const void *buf, int offset, int len, int dtype);
-int ubi_eba_write_leb_st(struct ubi_device *ubi, int vol_id, int lnum,
- const void *buf, int len, int dtype,
+int ubi_eba_write_leb_st(struct ubi_device *ubi, struct ubi_volume *vol,
+ int lnum, const void *buf, int len, int dtype,
int used_ebs);
-int ubi_eba_atomic_leb_change(struct ubi_device *ubi, int vol_id, int lnum,
- const void *buf, int len, int dtype);
+int ubi_eba_atomic_leb_change(struct ubi_device *ubi, struct ubi_volume *vol,
+ int lnum, const void *buf, int len, int dtype);
int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
struct ubi_vid_hdr *vid_hdr);
int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si);
diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index 0efc586..a95dcaa 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -136,7 +136,7 @@
/* Before updating - wipe out the volume */
for (i = 0; i < vol->reserved_pebs; i++) {
- err = ubi_eba_unmap_leb(ubi, vol_id, i);
+ err = ubi_eba_unmap_leb(ubi, vol, i);
if (err)
return err;
}
@@ -209,8 +209,7 @@
if (len != l)
dbg_msg("skip last %d bytes (0xFF)", len - l);
- err = ubi_eba_write_leb(ubi, vol_id, lnum, buf, 0, l,
- UBI_UNKNOWN);
+ err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, l, UBI_UNKNOWN);
} else {
/*
* When writing static volume, and this is the last logical
@@ -222,7 +221,7 @@
* contain zeros, not random trash.
*/
memset(buf + len, 0, vol->usable_leb_size - len);
- err = ubi_eba_write_leb_st(ubi, vol_id, lnum, buf, len,
+ err = ubi_eba_write_leb_st(ubi, vol, lnum, buf, len,
UBI_UNKNOWN, used_ebs);
}
diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c
index 787ce9e..d2d12de 100644
--- a/drivers/mtd/ubi/vmt.c
+++ b/drivers/mtd/ubi/vmt.c
@@ -417,7 +417,7 @@
return err;
for (i = 0; i < vol->reserved_pebs; i++) {
- err = ubi_eba_unmap_leb(ubi, vol_id, i);
+ err = ubi_eba_unmap_leb(ubi, vol, i);
if (err)
return err;
}
@@ -524,7 +524,7 @@
if (pebs < 0) {
for (i = 0; i < -pebs; i++) {
- err = ubi_eba_unmap_leb(ubi, vol_id, reserved_pebs + i);
+ err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);
if (err)
goto out_acc;
}
@@ -573,17 +573,16 @@
/**
* ubi_add_volume - add volume.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume description object
*
* This function adds an existin volume and initializes all its data
* structures. Returnes zero in case of success and a negative error code in
* case of failure.
*/
-int ubi_add_volume(struct ubi_device *ubi, int vol_id)
+int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol)
{
- int err;
+ int err, vol_id = vol->vol_id;
dev_t dev;
- struct ubi_volume *vol = ubi->volumes[vol_id];
dbg_msg("add volume %d", vol_id);
ubi_dbg_dump_vol_info(vol);
@@ -634,22 +633,21 @@
/**
* ubi_free_volume - free volume.
* @ubi: UBI device description object
- * @vol_id: volume ID
+ * @vol: volume description object
*
- * This function frees all resources for volume @vol_id but does not remove it.
+ * This function frees all resources for volume @vol but does not remove it.
* Used only when the UBI device is detached.
*/
-void ubi_free_volume(struct ubi_device *ubi, int vol_id)
+void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol)
{
int err;
- struct ubi_volume *vol = ubi->volumes[vol_id];
- dbg_msg("free volume %d", vol_id);
+ dbg_msg("free volume %d", vol->vol_id);
ubi_assert(vol);
vol->removed = 1;
err = ubi_destroy_gluebi(vol);
- ubi->volumes[vol_id] = NULL;
+ ubi->volumes[vol->vol_id] = NULL;
cdev_del(&vol->cdev);
volume_sysfs_close(vol);
}
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index 25b3bd6..3349c28 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -86,8 +86,10 @@
{
int i, err;
uint32_t crc;
+ struct ubi_volume *layout_vol;
ubi_assert(idx >= 0 && idx < ubi->vtbl_slots);
+ layout_vol = ubi->volumes[vol_id2idx(UBI_LAYOUT_VOL_ID)];
if (!vtbl_rec)
vtbl_rec = &empty_vtbl_record;
@@ -99,12 +101,12 @@
mutex_lock(&ubi->vtbl_mutex);
memcpy(&ubi->vtbl[idx], vtbl_rec, sizeof(struct ubi_vtbl_record));
for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) {
- err = ubi_eba_unmap_leb(ubi, UBI_LAYOUT_VOL_ID, i);
+ err = ubi_eba_unmap_leb(ubi, layout_vol, i);
if (err) {
mutex_unlock(&ubi->vtbl_mutex);
return err;
}
- err = ubi_eba_write_leb(ubi, UBI_LAYOUT_VOL_ID, i, ubi->vtbl, 0,
+ err = ubi_eba_write_leb(ubi, layout_vol, i, ubi->vtbl, 0,
ubi->vtbl_size, UBI_LONGTERM);
if (err) {
mutex_unlock(&ubi->vtbl_mutex);