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UBI: add layout volume information 

Add more information about layout volume to make userspace tools
use the macros instead of constants. Also rename UBI_LAYOUT_VOL_ID
to make it consistent with other macros.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2008-01-24 11:23:23 +02:00
parent c18a84186c
commit 91f2d53cd7
4 changed files with 10 additions and 8 deletions
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2
drivers/mtd/ubi/eba.c
View File

@ -78,7 +78,7 @@ static unsigned long long next_sqnum(struct ubi_device *ubi)
*/
static int ubi_get_compat(const struct ubi_device *ubi, int vol_id)
{
if (vol_id == UBI_LAYOUT_VOL_ID)
if (vol_id == UBI_LAYOUT_VOLUME_ID)
return UBI_LAYOUT_VOLUME_COMPAT;
return 0;
}

2
drivers/mtd/ubi/scan.c
View File

@ -858,7 +858,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum
}
vol_id = be32_to_cpu(vidh->vol_id);
if (vol_id > UBI_MAX_VOLUMES && vol_id != UBI_LAYOUT_VOL_ID) {
if (vol_id > UBI_MAX_VOLUMES && vol_id != UBI_LAYOUT_VOLUME_ID) {
int lnum = be32_to_cpu(vidh->lnum);
/* Unsupported internal volume */

10
drivers/mtd/ubi/vtbl.c
View File

@ -89,7 +89,7 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx,
struct ubi_volume *layout_vol;
ubi_assert(idx >= 0 && idx < ubi->vtbl_slots);
layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOL_ID)];
layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
if (!vtbl_rec)
vtbl_rec = &empty_vtbl_record;
@ -269,7 +269,7 @@ static int create_vtbl(struct ubi_device *ubi, struct ubi_scan_info *si,
* this volume table copy was found during scanning. It has to be wiped
* out.
*/
sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOL_ID);
sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOLUME_ID);
if (sv)
old_seb = ubi_scan_find_seb(sv, copy);
@ -281,7 +281,7 @@ retry:
}
vid_hdr->vol_type = UBI_VID_DYNAMIC;
vid_hdr->vol_id = cpu_to_be32(UBI_LAYOUT_VOL_ID);
vid_hdr->vol_id = cpu_to_be32(UBI_LAYOUT_VOLUME_ID);
vid_hdr->compat = UBI_LAYOUT_VOLUME_COMPAT;
vid_hdr->data_size = vid_hdr->used_ebs =
vid_hdr->data_pad = cpu_to_be32(0);
@ -590,7 +590,7 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si,
vol->last_eb_bytes = vol->reserved_pebs;
vol->used_bytes =
(long long)vol->used_ebs * (ubi->leb_size - vol->data_pad);
vol->vol_id = UBI_LAYOUT_VOL_ID;
vol->vol_id = UBI_LAYOUT_VOLUME_ID;
vol->ref_count = 1;
ubi_assert(!ubi->volumes[i]);
@ -743,7 +743,7 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si)
ubi->vtbl_size = ubi->vtbl_slots * UBI_VTBL_RECORD_SIZE;
ubi->vtbl_size = ALIGN(ubi->vtbl_size, ubi->min_io_size);
sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOL_ID);
sv = ubi_scan_find_sv(si, UBI_LAYOUT_VOLUME_ID);
if (!sv) {
/*
* No logical eraseblocks belonging to the layout volume were

4
include/mtd/ubi-header.h
View File

@ -299,7 +299,9 @@ struct ubi_vid_hdr {
/* The layout volume contains the volume table */
#define UBI_LAYOUT_VOL_ID UBI_INTERNAL_VOL_START
#define UBI_LAYOUT_VOLUME_ID UBI_INTERNAL_VOL_START
#define UBI_LAYOUT_VOLUME_TYPE UBI_VID_DYNAMIC
#define UBI_LAYOUT_VOLUME_ALIGN 1
#define UBI_LAYOUT_VOLUME_EBS 2
#define UBI_LAYOUT_VOLUME_NAME "layout volume"
#define UBI_LAYOUT_VOLUME_COMPAT UBI_COMPAT_REJECT