UBI: Extend UBI layer debug/messaging capabilities
If there is more then one UBI device mounted, there is no way to
distinguish between messages from different UBI devices.
Add device number to all ubi layer message types.
The R/O block driver messages were replaced by pr_* since
ubi_device structure is not used by it.
Amended a bit by Artem.
Signed-off-by: Tanya Brokhman <tlinder@codeaurora.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 6e30a3c..3405be4 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -166,7 +166,7 @@
case UBI_VOLUME_RESIZED:
case UBI_VOLUME_RENAMED:
if (ubi_update_fastmap(ubi)) {
- ubi_err("Unable to update fastmap!");
+ ubi_err(ubi, "Unable to update fastmap!");
ubi_ro_mode(ubi);
}
}
@@ -517,7 +517,7 @@
*/
err = alloc_chrdev_region(&dev, 0, ubi->vtbl_slots + 1, ubi->ubi_name);
if (err) {
- ubi_err("cannot register UBI character devices");
+ ubi_err(ubi, "cannot register UBI character devices");
return err;
}
@@ -528,7 +528,7 @@
err = cdev_add(&ubi->cdev, dev, 1);
if (err) {
- ubi_err("cannot add character device");
+ ubi_err(ubi, "cannot add character device");
goto out_unreg;
}
@@ -540,7 +540,7 @@
if (ubi->volumes[i]) {
err = ubi_add_volume(ubi, ubi->volumes[i]);
if (err) {
- ubi_err("cannot add volume %d", i);
+ ubi_err(ubi, "cannot add volume %d", i);
goto out_volumes;
}
}
@@ -556,7 +556,8 @@
cdev_del(&ubi->cdev);
out_unreg:
unregister_chrdev_region(ubi->cdev.dev, ubi->vtbl_slots + 1);
- ubi_err("cannot initialize UBI %s, error %d", ubi->ubi_name, err);
+ ubi_err(ubi, "cannot initialize UBI %s, error %d",
+ ubi->ubi_name, err);
return err;
}
@@ -650,7 +651,7 @@
* guess we should just pick the largest region. But this is
* not implemented.
*/
- ubi_err("multiple regions, not implemented");
+ ubi_err(ubi, "multiple regions, not implemented");
return -EINVAL;
}
@@ -685,7 +686,7 @@
* which allows us to avoid costly division operations.
*/
if (!is_power_of_2(ubi->min_io_size)) {
- ubi_err("min. I/O unit (%d) is not power of 2",
+ ubi_err(ubi, "min. I/O unit (%d) is not power of 2",
ubi->min_io_size);
return -EINVAL;
}
@@ -702,7 +703,7 @@
if (ubi->max_write_size < ubi->min_io_size ||
ubi->max_write_size % ubi->min_io_size ||
!is_power_of_2(ubi->max_write_size)) {
- ubi_err("bad write buffer size %d for %d min. I/O unit",
+ ubi_err(ubi, "bad write buffer size %d for %d min. I/O unit",
ubi->max_write_size, ubi->min_io_size);
return -EINVAL;
}
@@ -739,7 +740,7 @@
/* The shift must be aligned to 32-bit boundary */
if (ubi->vid_hdr_shift % 4) {
- ubi_err("unaligned VID header shift %d",
+ ubi_err(ubi, "unaligned VID header shift %d",
ubi->vid_hdr_shift);
return -EINVAL;
}
@@ -749,7 +750,7 @@
ubi->leb_start < ubi->vid_hdr_offset + UBI_VID_HDR_SIZE ||
ubi->leb_start > ubi->peb_size - UBI_VID_HDR_SIZE ||
ubi->leb_start & (ubi->min_io_size - 1)) {
- ubi_err("bad VID header (%d) or data offsets (%d)",
+ ubi_err(ubi, "bad VID header (%d) or data offsets (%d)",
ubi->vid_hdr_offset, ubi->leb_start);
return -EINVAL;
}
@@ -769,14 +770,14 @@
* read-only mode.
*/
if (ubi->vid_hdr_offset + UBI_VID_HDR_SIZE <= ubi->hdrs_min_io_size) {
- ubi_warn("EC and VID headers are in the same minimal I/O unit, switch to read-only mode");
+ ubi_warn(ubi, "EC and VID headers are in the same minimal I/O unit, switch to read-only mode");
ubi->ro_mode = 1;
}
ubi->leb_size = ubi->peb_size - ubi->leb_start;
if (!(ubi->mtd->flags & MTD_WRITEABLE)) {
- ubi_msg("MTD device %d is write-protected, attach in read-only mode",
+ ubi_msg(ubi, "MTD device %d is write-protected, attach in read-only mode",
ubi->mtd->index);
ubi->ro_mode = 1;
}
@@ -809,7 +810,7 @@
int err, old_reserved_pebs = vol->reserved_pebs;
if (ubi->ro_mode) {
- ubi_warn("skip auto-resize because of R/O mode");
+ ubi_warn(ubi, "skip auto-resize because of R/O mode");
return 0;
}
@@ -830,21 +831,22 @@
vtbl_rec = ubi->vtbl[vol_id];
err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
if (err)
- ubi_err("cannot clean auto-resize flag for volume %d",
+ ubi_err(ubi, "cannot clean auto-resize flag for volume %d",
vol_id);
} else {
desc.vol = vol;
err = ubi_resize_volume(&desc,
old_reserved_pebs + ubi->avail_pebs);
if (err)
- ubi_err("cannot auto-resize volume %d", vol_id);
+ ubi_err(ubi, "cannot auto-resize volume %d",
+ vol_id);
}
if (err)
return err;
- ubi_msg("volume %d (\"%s\") re-sized from %d to %d LEBs", vol_id,
- vol->name, old_reserved_pebs, vol->reserved_pebs);
+ ubi_msg(ubi, "volume %d (\"%s\") re-sized from %d to %d LEBs",
+ vol_id, vol->name, old_reserved_pebs, vol->reserved_pebs);
return 0;
}
@@ -885,7 +887,7 @@
for (i = 0; i < UBI_MAX_DEVICES; i++) {
ubi = ubi_devices[i];
if (ubi && mtd->index == ubi->mtd->index) {
- ubi_err("mtd%d is already attached to ubi%d",
+ ubi_err(ubi, "mtd%d is already attached to ubi%d",
mtd->index, i);
return -EEXIST;
}
@@ -900,7 +902,7 @@
* no sense to attach emulated MTD devices, so we prohibit this.
*/
if (mtd->type == MTD_UBIVOLUME) {
- ubi_err("refuse attaching mtd%d - it is already emulated on top of UBI",
+ ubi_err(ubi, "refuse attaching mtd%d - it is already emulated on top of UBI",
mtd->index);
return -EINVAL;
}
@@ -911,7 +913,7 @@
if (!ubi_devices[ubi_num])
break;
if (ubi_num == UBI_MAX_DEVICES) {
- ubi_err("only %d UBI devices may be created",
+ ubi_err(ubi, "only %d UBI devices may be created",
UBI_MAX_DEVICES);
return -ENFILE;
}
@@ -921,7 +923,7 @@
/* Make sure ubi_num is not busy */
if (ubi_devices[ubi_num]) {
- ubi_err("ubi%d already exists", ubi_num);
+ ubi_err(ubi, "ubi%d already exists", ubi_num);
return -EEXIST;
}
}
@@ -953,13 +955,14 @@
if (!ubi->fm_disabled && (int)mtd_div_by_eb(ubi->mtd->size, ubi->mtd)
<= UBI_FM_MAX_START) {
- ubi_err("More than %i PEBs are needed for fastmap, sorry.",
+ ubi_err(ubi, "More than %i PEBs are needed for fastmap, sorry.",
UBI_FM_MAX_START);
ubi->fm_disabled = 1;
}
- ubi_msg("default fastmap pool size: %d", ubi->fm_pool.max_size);
- ubi_msg("default fastmap WL pool size: %d", ubi->fm_wl_pool.max_size);
+ ubi_msg(ubi, "default fastmap pool size: %d", ubi->fm_pool.max_size);
+ ubi_msg(ubi, "default fastmap WL pool size: %d",
+ ubi->fm_wl_pool.max_size);
#else
ubi->fm_disabled = 1;
#endif
@@ -970,7 +973,7 @@
mutex_init(&ubi->fm_mutex);
init_rwsem(&ubi->fm_sem);
- ubi_msg("attaching mtd%d to ubi%d", mtd->index, ubi_num);
+ ubi_msg(ubi, "attaching mtd%d to ubi%d", mtd->index, ubi_num);
err = io_init(ubi, max_beb_per1024);
if (err)
@@ -989,7 +992,8 @@
#endif
err = ubi_attach(ubi, 0);
if (err) {
- ubi_err("failed to attach mtd%d, error %d", mtd->index, err);
+ ubi_err(ubi, "failed to attach mtd%d, error %d",
+ mtd->index, err);
goto out_free;
}
@@ -1010,28 +1014,28 @@
ubi->bgt_thread = kthread_create(ubi_thread, ubi, "%s", ubi->bgt_name);
if (IS_ERR(ubi->bgt_thread)) {
err = PTR_ERR(ubi->bgt_thread);
- ubi_err("cannot spawn \"%s\", error %d", ubi->bgt_name,
- err);
+ ubi_err(ubi, "cannot spawn \"%s\", error %d",
+ ubi->bgt_name, err);
goto out_debugfs;
}
- ubi_msg("attached mtd%d (name \"%s\", size %llu MiB) to ubi%d",
- mtd->index, mtd->name, ubi->flash_size >> 20, ubi_num);
- ubi_msg("PEB size: %d bytes (%d KiB), LEB size: %d bytes",
+ ubi_msg(ubi, "attached mtd%d (name \"%s\", size %llu MiB)",
+ mtd->index, mtd->name, ubi->flash_size >> 20);
+ ubi_msg(ubi, "PEB size: %d bytes (%d KiB), LEB size: %d bytes",
ubi->peb_size, ubi->peb_size >> 10, ubi->leb_size);
- ubi_msg("min./max. I/O unit sizes: %d/%d, sub-page size %d",
+ ubi_msg(ubi, "min./max. I/O unit sizes: %d/%d, sub-page size %d",
ubi->min_io_size, ubi->max_write_size, ubi->hdrs_min_io_size);
- ubi_msg("VID header offset: %d (aligned %d), data offset: %d",
+ ubi_msg(ubi, "VID header offset: %d (aligned %d), data offset: %d",
ubi->vid_hdr_offset, ubi->vid_hdr_aloffset, ubi->leb_start);
- ubi_msg("good PEBs: %d, bad PEBs: %d, corrupted PEBs: %d",
+ ubi_msg(ubi, "good PEBs: %d, bad PEBs: %d, corrupted PEBs: %d",
ubi->good_peb_count, ubi->bad_peb_count, ubi->corr_peb_count);
- ubi_msg("user volume: %d, internal volumes: %d, max. volumes count: %d",
+ ubi_msg(ubi, "user volume: %d, internal volumes: %d, max. volumes count: %d",
ubi->vol_count - UBI_INT_VOL_COUNT, UBI_INT_VOL_COUNT,
ubi->vtbl_slots);
- ubi_msg("max/mean erase counter: %d/%d, WL threshold: %d, image sequence number: %u",
+ ubi_msg(ubi, "max/mean erase counter: %d/%d, WL threshold: %d, image sequence number: %u",
ubi->max_ec, ubi->mean_ec, CONFIG_MTD_UBI_WL_THRESHOLD,
ubi->image_seq);
- ubi_msg("available PEBs: %d, total reserved PEBs: %d, PEBs reserved for bad PEB handling: %d",
+ ubi_msg(ubi, "available PEBs: %d, total reserved PEBs: %d, PEBs reserved for bad PEB handling: %d",
ubi->avail_pebs, ubi->rsvd_pebs, ubi->beb_rsvd_pebs);
/*
@@ -1100,7 +1104,7 @@
return -EBUSY;
}
/* This may only happen if there is a bug */
- ubi_err("%s reference count %d, destroy anyway",
+ ubi_err(ubi, "%s reference count %d, destroy anyway",
ubi->ubi_name, ubi->ref_count);
}
ubi_devices[ubi_num] = NULL;
@@ -1108,7 +1112,7 @@
ubi_assert(ubi_num == ubi->ubi_num);
ubi_notify_all(ubi, UBI_VOLUME_REMOVED, NULL);
- ubi_msg("detaching mtd%d from ubi%d", ubi->mtd->index, ubi_num);
+ ubi_msg(ubi, "detaching mtd%d", ubi->mtd->index);
#ifdef CONFIG_MTD_UBI_FASTMAP
/* If we don't write a new fastmap at detach time we lose all
* EC updates that have been made since the last written fastmap. */
@@ -1136,7 +1140,7 @@
put_mtd_device(ubi->mtd);
vfree(ubi->peb_buf);
vfree(ubi->fm_buf);
- ubi_msg("mtd%d is detached from ubi%d", ubi->mtd->index, ubi->ubi_num);
+ ubi_msg(ubi, "mtd%d is detached", ubi->mtd->index);
put_device(&ubi->dev);
return 0;
}
@@ -1218,7 +1222,8 @@
BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64);
if (mtd_devs > UBI_MAX_DEVICES) {
- ubi_err("too many MTD devices, maximum is %d", UBI_MAX_DEVICES);
+ pr_err("UBI error: too many MTD devices, maximum is %d",
+ UBI_MAX_DEVICES);
return -EINVAL;
}
@@ -1226,19 +1231,19 @@
ubi_class = class_create(THIS_MODULE, UBI_NAME_STR);
if (IS_ERR(ubi_class)) {
err = PTR_ERR(ubi_class);
- ubi_err("cannot create UBI class");
+ pr_err("UBI error: cannot create UBI class");
goto out;
}
err = class_create_file(ubi_class, &ubi_version);
if (err) {
- ubi_err("cannot create sysfs file");
+ pr_err("UBI error: cannot create sysfs file");
goto out_class;
}
err = misc_register(&ubi_ctrl_cdev);
if (err) {
- ubi_err("cannot register device");
+ pr_err("UBI error: cannot register device");
goto out_version;
}
@@ -1265,7 +1270,8 @@
mtd = open_mtd_device(p->name);
if (IS_ERR(mtd)) {
err = PTR_ERR(mtd);
- ubi_err("cannot open mtd %s, error %d", p->name, err);
+ pr_err("UBI error: cannot open mtd %s, error %d",
+ p->name, err);
/* See comment below re-ubi_is_module(). */
if (ubi_is_module())
goto out_detach;
@@ -1277,7 +1283,8 @@
p->vid_hdr_offs, p->max_beb_per1024);
mutex_unlock(&ubi_devices_mutex);
if (err < 0) {
- ubi_err("cannot attach mtd%d", mtd->index);
+ pr_err("UBI error: cannot attach mtd%d",
+ mtd->index);
put_mtd_device(mtd);
/*
@@ -1300,7 +1307,7 @@
err = ubiblock_init();
if (err) {
- ubi_err("block: cannot initialize, error %d", err);
+ pr_err("UBI error: block: cannot initialize, error %d", err);
/* See comment above re-ubi_is_module(). */
if (ubi_is_module())
@@ -1326,7 +1333,7 @@
out_class:
class_destroy(ubi_class);
out:
- ubi_err("cannot initialize UBI, error %d", err);
+ pr_err("UBI error: cannot initialize UBI, error %d", err);
return err;
}
late_initcall(ubi_init);
@@ -1365,7 +1372,7 @@
result = simple_strtoul(str, &endp, 0);
if (str == endp || result >= INT_MAX) {
- ubi_err("incorrect bytes count: \"%s\"\n", str);
+ pr_err("UBI error: incorrect bytes count: \"%s\"\n", str);
return -EINVAL;
}
@@ -1381,7 +1388,7 @@
case '\0':
break;
default:
- ubi_err("incorrect bytes count: \"%s\"\n", str);
+ pr_err("UBI error: incorrect bytes count: \"%s\"\n", str);
return -EINVAL;
}
@@ -1408,20 +1415,20 @@
return -EINVAL;
if (mtd_devs == UBI_MAX_DEVICES) {
- ubi_err("too many parameters, max. is %d\n",
- UBI_MAX_DEVICES);
+ pr_err("UBI error: too many parameters, max. is %d\n",
+ UBI_MAX_DEVICES);
return -EINVAL;
}
len = strnlen(val, MTD_PARAM_LEN_MAX);
if (len == MTD_PARAM_LEN_MAX) {
- ubi_err("parameter \"%s\" is too long, max. is %d\n",
- val, MTD_PARAM_LEN_MAX);
+ pr_err("UBI error: parameter \"%s\" is too long, max. is %d\n",
+ val, MTD_PARAM_LEN_MAX);
return -EINVAL;
}
if (len == 0) {
- pr_warn("UBI warning: empty 'mtd=' parameter - ignored\n");
+ pr_err("UBI warning: empty 'mtd=' parameter - ignored\n");
return 0;
}
@@ -1435,7 +1442,7 @@
tokens[i] = strsep(&pbuf, ",");
if (pbuf) {
- ubi_err("too many arguments at \"%s\"\n", val);
+ pr_err("UBI error: too many arguments at \"%s\"\n", val);
return -EINVAL;
}
@@ -1455,8 +1462,8 @@
int err = kstrtoint(token, 10, &p->max_beb_per1024);
if (err) {
- ubi_err("bad value for max_beb_per1024 parameter: %s",
- token);
+ pr_err("UBI error: bad value for max_beb_per1024 parameter: %s",
+ token);
return -EINVAL;
}
}
@@ -1466,7 +1473,8 @@
int err = kstrtoint(token, 10, &p->ubi_num);
if (err) {
- ubi_err("bad value for ubi_num parameter: %s", token);
+ pr_err("UBI error: bad value for ubi_num parameter: %s",
+ token);
return -EINVAL;
}
} else