+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) International Business Machines Corp., 2006
* Copyright (c) Nokia Corporation, 2006, 2007
*
- * SPDX-License-Identifier: GPL-2.0+
- *
* Author: Artem Bityutskiy (Битюцкий Артём)
*/
* eraseblock stores one volume table copy, i.e. LEB 0 and LEB 1 duplicate each
* other. This redundancy guarantees robustness to unclean reboots. The volume
* table is basically an array of volume table records. Each record contains
- * full information about the volume and protected by a CRC checksum.
+ * full information about the volume and protected by a CRC checksum. Note,
+ * nowadays we use the atomic LEB change operation when updating the volume
+ * table, so we do not really need 2 LEBs anymore, but we preserve the older
+ * design for the backward compatibility reasons.
*
- * The volume table is changed, it is first changed in RAM. Then LEB 0 is
+ * When the volume table is changed, it is first changed in RAM. Then LEB 0 is
* erased, and the updated volume table is written back to LEB 0. Then same for
* LEB 1. This scheme guarantees recoverability from unclean reboots.
*
* damaged.
*/
-#define __UBOOT__
#ifndef __UBOOT__
+#include <log.h>
+#include <dm/devres.h>
#include <linux/crc32.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <asm/div64.h>
+#include <u-boot/crc.h>
#else
#include <ubi_uboot.h>
+#include <linux/bug.h>
#endif
#include <linux/err.h>
/* Empty volume table record */
static struct ubi_vtbl_record empty_vtbl_record;
+/**
+ * ubi_update_layout_vol - helper for updatting layout volumes on flash
+ * @ubi: UBI device description object
+ */
+static int ubi_update_layout_vol(struct ubi_device *ubi)
+{
+ struct ubi_volume *layout_vol;
+ int i, err;
+
+ layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
+ for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) {
+ err = ubi_eba_atomic_leb_change(ubi, layout_vol, i, ubi->vtbl,
+ ubi->vtbl_size);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
/**
* ubi_change_vtbl_record - change volume table record.
* @ubi: UBI device description object
int ubi_change_vtbl_record(struct ubi_device *ubi, int idx,
struct ubi_vtbl_record *vtbl_rec)
{
- int i, err;
+ int err;
uint32_t crc;
- struct ubi_volume *layout_vol;
ubi_assert(idx >= 0 && idx < ubi->vtbl_slots);
- layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
if (!vtbl_rec)
vtbl_rec = &empty_vtbl_record;
}
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, layout_vol, i);
- if (err)
- return err;
-
- err = ubi_eba_write_leb(ubi, layout_vol, i, ubi->vtbl, 0,
- ubi->vtbl_size);
- if (err)
- return err;
- }
+ err = ubi_update_layout_vol(ubi);
self_vtbl_check(ubi);
- return 0;
+ return err ? err : 0;
}
/**
int ubi_vtbl_rename_volumes(struct ubi_device *ubi,
struct list_head *rename_list)
{
- int i, err;
struct ubi_rename_entry *re;
- struct ubi_volume *layout_vol;
list_for_each_entry(re, rename_list, list) {
uint32_t crc;
vtbl_rec->crc = cpu_to_be32(crc);
}
- layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)];
- for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) {
- err = ubi_eba_unmap_leb(ubi, layout_vol, i);
- if (err)
- return err;
-
- err = ubi_eba_write_leb(ubi, layout_vol, i, ubi->vtbl, 0,
- ubi->vtbl_size);
- if (err)
- return err;
- }
-
- return 0;
+ return ubi_update_layout_vol(ubi);
}
/**
crc = crc32(UBI_CRC32_INIT, &vtbl[i], UBI_VTBL_RECORD_SIZE_CRC);
if (be32_to_cpu(vtbl[i].crc) != crc) {
- ubi_err("bad CRC at record %u: %#08x, not %#08x",
+ ubi_err(ubi, "bad CRC at record %u: %#08x, not %#08x",
i, crc, be32_to_cpu(vtbl[i].crc));
ubi_dump_vtbl_record(&vtbl[i], i);
return 1;
n = ubi->leb_size % alignment;
if (data_pad != n) {
- ubi_err("bad data_pad, has to be %d", n);
+ ubi_err(ubi, "bad data_pad, has to be %d", n);
err = 6;
goto bad;
}
}
if (reserved_pebs > ubi->good_peb_count) {
- ubi_err("too large reserved_pebs %d, good PEBs %d",
+ ubi_err(ubi, "too large reserved_pebs %d, good PEBs %d",
reserved_pebs, ubi->good_peb_count);
err = 9;
goto bad;
#else
!strncmp((char *)vtbl[i].name, vtbl[n].name, len1)) {
#endif
- ubi_err("volumes %d and %d have the same name \"%s\"",
+ ubi_err(ubi, "volumes %d and %d have the same name \"%s\"",
i, n, vtbl[i].name);
ubi_dump_vtbl_record(&vtbl[i], i);
ubi_dump_vtbl_record(&vtbl[n], n);
return 0;
bad:
- ubi_err("volume table check failed: record %d, error %d", i, err);
+ ubi_err(ubi, "volume table check failed: record %d, error %d", i, err);
ubi_dump_vtbl_record(&vtbl[i], i);
return -EINVAL;
}
leb_corrupted[1] = memcmp(leb[0], leb[1],
ubi->vtbl_size);
if (leb_corrupted[1]) {
- ubi_warn("volume table copy #2 is corrupted");
+ ubi_warn(ubi, "volume table copy #2 is corrupted");
err = create_vtbl(ubi, ai, 1, leb[0]);
if (err)
goto out_free;
- ubi_msg("volume table was restored");
+ ubi_msg(ubi, "volume table was restored");
}
/* Both LEB 1 and LEB 2 are OK and consistent */
}
if (leb_corrupted[1]) {
/* Both LEB 0 and LEB 1 are corrupted */
- ubi_err("both volume tables are corrupted");
+ ubi_err(ubi, "both volume tables are corrupted");
goto out_free;
}
- ubi_warn("volume table copy #1 is corrupted");
+ ubi_warn(ubi, "volume table copy #1 is corrupted");
err = create_vtbl(ubi, ai, 0, leb[1]);
if (err)
goto out_free;
- ubi_msg("volume table was restored");
+ ubi_msg(ubi, "volume table was restored");
vfree(leb[0]);
return leb[1];
vol->name[vol->name_len] = '\0';
vol->vol_id = i;
+ if (vtbl[i].flags & UBI_VTBL_SKIP_CRC_CHECK_FLG)
+ vol->skip_check = 1;
+
if (vtbl[i].flags & UBI_VTBL_AUTORESIZE_FLG) {
/* Auto re-size flag may be set only for one volume */
if (ubi->autoresize_vol_id != -1) {
- ubi_err("more than one auto-resize volume (%d and %d)",
+ ubi_err(ubi, "more than one auto-resize volume (%d and %d)",
ubi->autoresize_vol_id, i);
kfree(vol);
return -EINVAL;
/* Static volumes only */
av = ubi_find_av(ai, i);
- if (!av) {
+ if (!av || !av->leb_count) {
/*
* No eraseblocks belonging to this volume found. We
* don't actually know whether this static volume is
* We found a static volume which misses several
* eraseblocks. Treat it as corrupted.
*/
- ubi_warn("static volume %d misses %d LEBs - corrupted",
+ ubi_warn(ubi, "static volume %d misses %d LEBs - corrupted",
av->vol_id, av->used_ebs - av->leb_count);
vol->corrupted = 1;
continue;
vol->ubi = ubi;
if (reserved_pebs > ubi->avail_pebs) {
- ubi_err("not enough PEBs, required %d, available %d",
+ ubi_err(ubi, "not enough PEBs, required %d, available %d",
reserved_pebs, ubi->avail_pebs);
if (ubi->corr_peb_count)
- ubi_err("%d PEBs are corrupted and not used",
+ ubi_err(ubi, "%d PEBs are corrupted and not used",
ubi->corr_peb_count);
}
ubi->rsvd_pebs += reserved_pebs;
return 0;
bad:
- ubi_err("bad attaching information, error %d", err);
+ ubi_err(vol->ubi, "bad attaching information, error %d", err);
ubi_dump_av(av);
ubi_dump_vol_info(vol);
return -EINVAL;
struct ubi_volume *vol;
if (ai->vols_found > UBI_INT_VOL_COUNT + ubi->vtbl_slots) {
- ubi_err("found %d volumes while attaching, maximum is %d + %d",
+ ubi_err(ubi, "found %d volumes while attaching, maximum is %d + %d",
ai->vols_found, UBI_INT_VOL_COUNT, ubi->vtbl_slots);
return -EINVAL;
}
if (ai->highest_vol_id >= ubi->vtbl_slots + UBI_INT_VOL_COUNT &&
ai->highest_vol_id < UBI_INTERNAL_VOL_START) {
- ubi_err("too large volume ID %d found", ai->highest_vol_id);
+ ubi_err(ubi, "too large volume ID %d found",
+ ai->highest_vol_id);
return -EINVAL;
}
* reboot while the volume was being removed. Discard
* these eraseblocks.
*/
- ubi_msg("finish volume %d removal", av->vol_id);
+ ubi_msg(ubi, "finish volume %d removal", av->vol_id);
ubi_remove_av(ai, av);
} else if (av) {
err = check_av(vol, av);
if (IS_ERR(ubi->vtbl))
return PTR_ERR(ubi->vtbl);
} else {
- ubi_err("the layout volume was not found");
+ ubi_err(ubi, "the layout volume was not found");
return -EINVAL;
}
} else {
if (av->leb_count > UBI_LAYOUT_VOLUME_EBS) {
/* This must not happen with proper UBI images */
- ubi_err("too many LEBs (%d) in layout volume",
+ ubi_err(ubi, "too many LEBs (%d) in layout volume",
av->leb_count);
return -EINVAL;
}
return;
if (vtbl_check(ubi, ubi->vtbl)) {
- ubi_err("self-check failed");
+ ubi_err(ubi, "self-check failed");
BUG();
}
}
projects / oweals / u-boot.git / blobdiff