1/ using pr_debug() for a number of messages reduces the noise of
md, but still allows them to be enabled when needed.
2/ try to be consistent in the usage of pr_err() and pr_warn(), and
document the intention
3/ When strings have been split onto multiple lines, rejoin into
a single string.
The cost of having lines > 80 chars is less than the cost of not
being able to easily search for a particular message.
Signed-off-by: NeilBrown <neilb@xxxxxxxx>
---
drivers/md/md.c | 389 ++++++++++++++++++++++++-------------------------------
1 file changed, 170 insertions(+), 219 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index e3d20fb1d839..0354a92636aa 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -30,6 +30,18 @@
You should have received a copy of the GNU General Public License
(for example /usr/src/linux/COPYING); if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ Errors, Warnings, etc.
+ Please use:
+ pr_crit() for error conditions that risk data loss
+ pr_err() for error conditions that are unexpected, like an IO error
+ or internal inconsistency
+ pr_warn() for error conditions that could have been predicated, like
+ adding a device to an array when it has incompatible metadata
+ pr_info() for every interesting, very rare events, like an array starting
+ or stopping, or resync starting or stopping
+ pr_debug() for everything else.
+
*/
#include <linux/kthread.h>
@@ -712,7 +724,7 @@ static void super_written(struct bio *bio)
struct mddev *mddev = rdev->mddev;
if (bio->bi_error) {
- printk("md: super_written gets error=%d\n", bio->bi_error);
+ pr_err("md: super_written gets error=%d\n", bio->bi_error);
md_error(mddev, rdev);
}
@@ -792,8 +804,8 @@ static int read_disk_sb(struct md_rdev *rdev, int size)
return 0;
fail:
- printk(KERN_WARNING "md: disabled device %s, could not read superblock.\n",
- bdevname(rdev->bdev,b));
+ pr_err("md: disabled device %s, could not read superblock.\n",
+ bdevname(rdev->bdev,b));
return -EINVAL;
}
@@ -815,7 +827,6 @@ static int sb_equal(mdp_super_t *sb1, mdp_super_t *sb2)
if (!tmp1 || !tmp2) {
ret = 0;
- printk(KERN_INFO "md.c sb_equal(): failed to allocate memory!\n");
goto abort;
}
@@ -929,7 +940,7 @@ int md_check_no_bitmap(struct mddev *mddev)
{
if (!mddev->bitmap_info.file && !mddev->bitmap_info.offset)
return 0;
- printk(KERN_ERR "%s: bitmaps are not supported for %s\n",
+ pr_warn("%s: bitmaps are not supported for %s\n",
mdname(mddev), mddev->pers->name);
return 1;
}
@@ -953,7 +964,8 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
rdev->sb_start = calc_dev_sboffset(rdev);
ret = read_disk_sb(rdev, MD_SB_BYTES);
- if (ret) return ret;
+ if (ret)
+ return ret;
ret = -EINVAL;
@@ -961,17 +973,15 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
sb = page_address(rdev->sb_page);
if (sb->md_magic != MD_SB_MAGIC) {
- printk(KERN_ERR "md: invalid raid superblock magic on %s\n",
- b);
+ pr_warn("md: invalid raid superblock magic on %s\n", b);
goto abort;
}
if (sb->major_version != 0 ||
sb->minor_version < 90 ||
sb->minor_version > 91) {
- printk(KERN_WARNING "Bad version number %d.%d on %s\n",
- sb->major_version, sb->minor_version,
- b);
+ pr_warn("Bad version number %d.%d on %s\n",
+ sb->major_version, sb->minor_version, b);
goto abort;
}
@@ -979,8 +989,7 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
goto abort;
if (md_csum_fold(calc_sb_csum(sb)) != md_csum_fold(sb->sb_csum)) {
- printk(KERN_WARNING "md: invalid superblock checksum on %s\n",
- b);
+ pr_warn("md: invalid superblock checksum on %s\n", b);
goto abort;
}
@@ -1001,14 +1010,13 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
__u64 ev1, ev2;
mdp_super_t *refsb = page_address(refdev->sb_page);
if (!uuid_equal(refsb, sb)) {
- printk(KERN_WARNING "md: %s has different UUID to %s\n",
+ pr_warn("md: %s has different UUID to %s\n",
b, bdevname(refdev->bdev,b2));
goto abort;
}
if (!sb_equal(refsb, sb)) {
- printk(KERN_WARNING "md: %s has same UUID"
- " but different superblock to %s\n",
- b, bdevname(refdev->bdev, b2));
+ pr_warn("md: %s has same UUID but different superblock to %s\n",
+ b, bdevname(refdev->bdev, b2));
goto abort;
}
ev1 = md_event(sb);
@@ -1410,13 +1418,13 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
return -EINVAL;
if (calc_sb_1_csum(sb) != sb->sb_csum) {
- printk("md: invalid superblock checksum on %s\n",
+ pr_warn("md: invalid superblock checksum on %s\n",
bdevname(rdev->bdev,b));
return -EINVAL;
}
if (le64_to_cpu(sb->data_size) < 10) {
- printk("md: data_size too small on %s\n",
- bdevname(rdev->bdev,b));
+ pr_warn("md: data_size too small on %s\n",
+ bdevname(rdev->bdev,b));
return -EINVAL;
}
if (sb->pad0 ||
@@ -1500,8 +1508,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
sb->level != refsb->level ||
sb->layout != refsb->layout ||
sb->chunksize != refsb->chunksize) {
- printk(KERN_WARNING "md: %s has strangely different"
- " superblock to %s\n",
+ pr_warn("md: %s has strangely different superblock to %s\n",
bdevname(rdev->bdev,b),
bdevname(refdev->bdev,b2));
return -EINVAL;
@@ -1643,8 +1650,7 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
case MD_DISK_ROLE_JOURNAL: /* journal device */
if (!(le32_to_cpu(sb->feature_map) & MD_FEATURE_JOURNAL)) {
/* journal device without journal feature */
- printk(KERN_WARNING
- "md: journal device provided without journal feature, ignoring the device\n");
+ pr_warn("md: journal device provided without journal feature, ignoring the device\n");
return -EINVAL;
}
set_bit(Journal, &rdev->flags);
@@ -2001,9 +2007,9 @@ int md_integrity_register(struct mddev *mddev)
blk_integrity_register(mddev->gendisk,
bdev_get_integrity(reference->bdev));
- printk(KERN_NOTICE "md: data integrity enabled on %s\n", mdname(mddev));
+ pr_debug("md: data integrity enabled on %s\n", mdname(mddev));
if (bioset_integrity_create(mddev->bio_set, BIO_POOL_SIZE)) {
- printk(KERN_ERR "md: failed to create integrity pool for %s\n",
+ pr_err("md: failed to create integrity pool for %s\n",
mdname(mddev));
return -EINVAL;
}
@@ -2031,8 +2037,8 @@ int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
return 0;
if (blk_integrity_compare(mddev->gendisk, rdev->bdev->bd_disk) != 0) {
- printk(KERN_NOTICE "%s: incompatible integrity profile for %s\n",
- mdname(mddev), bdevname(rdev->bdev, name));
+ pr_err("%s: incompatible integrity profile for %s\n",
+ mdname(mddev), bdevname(rdev->bdev, name));
return -ENXIO;
}
@@ -2086,15 +2092,15 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
rcu_read_unlock();
if (!test_bit(Journal, &rdev->flags) &&
mddev->max_disks && rdev->desc_nr >= mddev->max_disks) {
- printk(KERN_WARNING "md: %s: array is limited to %d devices\n",
- mdname(mddev), mddev->max_disks);
+ pr_warn("md: %s: array is limited to %d devices\n",
+ mdname(mddev), mddev->max_disks);
return -EBUSY;
}
bdevname(rdev->bdev,b);
strreplace(b, '/', '!');
rdev->mddev = mddev;
- printk(KERN_INFO "md: bind<%s>\n", b);
+ pr_debug("md: bind<%s>\n", b);
if ((err = kobject_add(&rdev->kobj, &mddev->kobj, "dev-%s", b)))
goto fail;
@@ -2113,8 +2119,8 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
return 0;
fail:
- printk(KERN_WARNING "md: failed to register dev-%s for %s\n",
- b, mdname(mddev));
+ pr_warn("md: failed to register dev-%s for %s\n",
+ b, mdname(mddev));
return err;
}
@@ -2131,7 +2137,7 @@ static void unbind_rdev_from_array(struct md_rdev *rdev)
bd_unlink_disk_holder(rdev->bdev, rdev->mddev->gendisk);
list_del_rcu(&rdev->same_set);
- printk(KERN_INFO "md: unbind<%s>\n", bdevname(rdev->bdev,b));
+ pr_debug("md: unbind<%s>\n", bdevname(rdev->bdev,b));
rdev->mddev = NULL;
sysfs_remove_link(&rdev->kobj, "block");
sysfs_put(rdev->sysfs_state);
@@ -2161,8 +2167,7 @@ static int lock_rdev(struct md_rdev *rdev, dev_t dev, int shared)
bdev = blkdev_get_by_dev(dev, FMODE_READ|FMODE_WRITE|FMODE_EXCL,
shared ? (struct md_rdev *)lock_rdev : rdev);
if (IS_ERR(bdev)) {
- printk(KERN_ERR "md: could not open %s.\n",
- __bdevname(dev, b));
+ pr_warn("md: could not open %s.\n", __bdevname(dev, b));
return PTR_ERR(bdev);
}
rdev->bdev = bdev;
@@ -2182,8 +2187,7 @@ static void export_rdev(struct md_rdev *rdev)
{
char b[BDEVNAME_SIZE];
- printk(KERN_INFO "md: export_rdev(%s)\n",
- bdevname(rdev->bdev,b));
+ pr_debug("md: export_rdev(%s)\n", bdevname(rdev->bdev,b));
md_rdev_clear(rdev);
#ifndef MODULE
if (test_bit(AutoDetected, &rdev->flags))
@@ -3208,10 +3212,8 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe
sector_t size;
rdev = kzalloc(sizeof(*rdev), GFP_KERNEL);
- if (!rdev) {
- printk(KERN_ERR "md: could not alloc mem for new device!\n");
+ if (!rdev)
return ERR_PTR(-ENOMEM);
- }
err = md_rdev_init(rdev);
if (err)
@@ -3228,8 +3230,7 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe
size = i_size_read(rdev->bdev->bd_inode) >> BLOCK_SIZE_BITS;
if (!size) {
- printk(KERN_WARNING
- "md: %s has zero or unknown size, marking faulty!\n",
+ pr_warn("md: %s has zero or unknown size, marking faulty!\n",
bdevname(rdev->bdev,b));
err = -EINVAL;
goto abort_free;
@@ -3239,16 +3240,13 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe
err = super_types[super_format].
load_super(rdev, NULL, super_minor);
if (err == -EINVAL) {
- printk(KERN_WARNING
- "md: %s does not have a valid v%d.%d "
- "superblock, not importing!\n",
+ pr_warn("md: %s does not have a valid v%d.%d superblock, not importing!\n",
bdevname(rdev->bdev,b),
- super_format, super_minor);
+ super_format, super_minor);
goto abort_free;
}
if (err < 0) {
- printk(KERN_WARNING
- "md: could not read %s's sb, not importing!\n",
+ pr_warn("md: could not read %s's sb, not importing!\n",
bdevname(rdev->bdev,b));
goto abort_free;
}
@@ -3284,9 +3282,7 @@ static void analyze_sbs(struct mddev *mddev)
case 0:
break;
default:
- printk( KERN_ERR \
- "md: fatal superblock inconsistency in %s"
- " -- removing from array\n",
+ pr_warn("md: fatal superblock inconsistency in %s -- removing from array\n",
bdevname(rdev->bdev,b));
md_kick_rdev_from_array(rdev);
}
@@ -3299,18 +3295,16 @@ static void analyze_sbs(struct mddev *mddev)
if (mddev->max_disks &&
(rdev->desc_nr >= mddev->max_disks ||
i > mddev->max_disks)) {
- printk(KERN_WARNING
- "md: %s: %s: only %d devices permitted\n",
- mdname(mddev), bdevname(rdev->bdev, b),
- mddev->max_disks);
+ pr_warn("md: %s: %s: only %d devices permitted\n",
+ mdname(mddev), bdevname(rdev->bdev, b),
+ mddev->max_disks);
md_kick_rdev_from_array(rdev);
continue;
}
if (rdev != freshest) {
if (super_types[mddev->major_version].
validate_super(mddev, rdev)) {
- printk(KERN_WARNING "md: kicking non-fresh %s"
- " from array!\n",
+ pr_warn("md: kicking non-fresh %s from array!\n",
bdevname(rdev->bdev,b));
md_kick_rdev_from_array(rdev);
continue;
@@ -3381,7 +3375,7 @@ safe_delay_store(struct mddev *mddev, const char *cbuf, size_t len)
unsigned long msec;
if (mddev_is_clustered(mddev)) {
- pr_info("md: Safemode is disabled for clustered mode\n");
+ pr_warn("md: Safemode is disabled for clustered mode\n");
return -EINVAL;
}
@@ -3469,8 +3463,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
rv = -EINVAL;
if (!mddev->pers->quiesce) {
- printk(KERN_WARNING "md: %s: %s does not support online personality change\n",
- mdname(mddev), mddev->pers->name);
+ pr_warn("md: %s: %s does not support online personality change\n",
+ mdname(mddev), mddev->pers->name);
goto out_unlock;
}
@@ -3488,7 +3482,7 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
pers = find_pers(level, clevel);
if (!pers || !try_module_get(pers->owner)) {
spin_unlock(&pers_lock);
- printk(KERN_WARNING "md: personality %s not loaded\n", clevel);
+ pr_warn("md: personality %s not loaded\n", clevel);
rv = -EINVAL;
goto out_unlock;
}
@@ -3502,8 +3496,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
}
if (!pers->takeover) {
module_put(pers->owner);
- printk(KERN_WARNING "md: %s: %s does not support personality takeover\n",
- mdname(mddev), clevel);
+ pr_warn("md: %s: %s does not support personality takeover\n",
+ mdname(mddev), clevel);
rv = -EINVAL;
goto out_unlock;
}
@@ -3523,8 +3517,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
mddev->delta_disks = 0;
mddev->reshape_backwards = 0;
module_put(pers->owner);
- printk(KERN_WARNING "md: %s: %s would not accept array\n",
- mdname(mddev), clevel);
+ pr_warn("md: %s: %s would not accept array\n",
+ mdname(mddev), clevel);
rv = PTR_ERR(priv);
goto out_unlock;
}
@@ -3567,9 +3561,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
pers->sync_request != NULL) {
/* need to add the md_redundancy_group */
if (sysfs_create_group(&mddev->kobj, &md_redundancy_group))
- printk(KERN_WARNING
- "md: cannot register extra attributes for %s\n",
- mdname(mddev));
+ pr_warn("md: cannot register extra attributes for %s\n",
+ mdname(mddev));
mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, "sync_action");
}
if (oldpers->sync_request != NULL &&
@@ -3600,9 +3593,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
clear_bit(In_sync, &rdev->flags);
else {
if (sysfs_link_rdev(mddev, rdev))
- printk(KERN_WARNING "md: cannot register rd%d"
- " for %s after level change\n",
- rdev->raid_disk, mdname(mddev));
+ pr_warn("md: cannot register rd%d for %s after level change\n",
+ rdev->raid_disk, mdname(mddev));
}
}
@@ -5068,13 +5060,13 @@ static int md_alloc(dev_t dev, char *name)
/* This isn't possible, but as kobject_init_and_add is marked
* __must_check, we must do something with the result
*/
- printk(KERN_WARNING "md: cannot register %s/md - name in use\n",
- disk->disk_name);
+ pr_debug("md: cannot register %s/md - name in use\n",
+ disk->disk_name);
error = 0;
}
if (mddev->kobj.sd &&
sysfs_create_group(&mddev->kobj, &md_bitmap_group))
- printk(KERN_DEBUG "pointless warning\n");
+ pr_debug("pointless warning\n");
mutex_unlock(&mddev->open_mutex);
abort:
mutex_unlock(&disks_mutex);
@@ -5176,15 +5168,15 @@ int md_run(struct mddev *mddev)
if (mddev->dev_sectors &&
rdev->data_offset + mddev->dev_sectors
> rdev->sb_start) {
- printk("md: %s: data overlaps metadata\n",
- mdname(mddev));
+ pr_warn("md: %s: data overlaps metadata\n",
+ mdname(mddev));
return -EINVAL;
}
} else {
if (rdev->sb_start + rdev->sb_size/512
> rdev->data_offset) {
- printk("md: %s: metadata overlaps data\n",
- mdname(mddev));
+ pr_warn("md: %s: metadata overlaps data\n",
+ mdname(mddev));
return -EINVAL;
}
}
@@ -5199,11 +5191,11 @@ int md_run(struct mddev *mddev)
if (!pers || !try_module_get(pers->owner)) {
spin_unlock(&pers_lock);
if (mddev->level != LEVEL_NONE)
- printk(KERN_WARNING "md: personality for level %d is not loaded!\n",
- mddev->level);
+ pr_warn("md: personality for level %d is not loaded!\n",
+ mddev->level);
else
- printk(KERN_WARNING "md: personality for level %s is not loaded!\n",
- mddev->clevel);
+ pr_warn("md: personality for level %s is not loaded!\n",
+ mddev->clevel);
return -EINVAL;
}
spin_unlock(&pers_lock);
@@ -5233,21 +5225,16 @@ int md_run(struct mddev *mddev)
if (rdev < rdev2 &&
rdev->bdev->bd_contains ==
rdev2->bdev->bd_contains) {
- printk(KERN_WARNING
- "%s: WARNING: %s appears to be"
- " on the same physical disk as"
- " %s.\n",
- mdname(mddev),
- bdevname(rdev->bdev,b),
- bdevname(rdev2->bdev,b2));
+ pr_warn("%s: WARNING: %s appears to be on the same physical disk as %s.\n",
+ mdname(mddev),
+ bdevname(rdev->bdev,b),
+ bdevname(rdev2->bdev,b2));
warned = 1;
}
}
if (warned)
- printk(KERN_WARNING
- "True protection against single-disk"
- " failure might be compromised.\n");
+ pr_warn("True protection against single-disk failure might be compromised.\n");
}
mddev->recovery = 0;
@@ -5261,14 +5248,14 @@ int md_run(struct mddev *mddev)
err = pers->run(mddev);
if (err)
- printk(KERN_ERR "md: pers->run() failed ...\n");
+ pr_warn("md: pers->run() failed ...\n");
else if (pers->size(mddev, 0, 0) < mddev->array_sectors) {
- WARN_ONCE(!mddev->external_size, "%s: default size too small,"
- " but 'external_size' not in effect?\n", __func__);
- printk(KERN_ERR
- "md: invalid array_size %llu > default size %llu\n",
- (unsigned long long)mddev->array_sectors / 2,
- (unsigned long long)pers->size(mddev, 0, 0) / 2);
+ WARN_ONCE(!mddev->external_size,
+ "%s: default size too small, but 'external_size' not in effect?\n",
+ __func__);
+ pr_warn("md: invalid array_size %llu > default size %llu\n",
+ (unsigned long long)mddev->array_sectors / 2,
+ (unsigned long long)pers->size(mddev, 0, 0) / 2);
err = -EINVAL;
}
if (err == 0 && pers->sync_request &&
@@ -5278,8 +5265,8 @@ int md_run(struct mddev *mddev)
bitmap = bitmap_create(mddev, -1);
if (IS_ERR(bitmap)) {
err = PTR_ERR(bitmap);
- printk(KERN_ERR "%s: failed to create bitmap (%d)\n",
- mdname(mddev), err);
+ pr_warn("%s: failed to create bitmap (%d)\n",
+ mdname(mddev), err);
} else
mddev->bitmap = bitmap;
@@ -5315,9 +5302,8 @@ int md_run(struct mddev *mddev)
if (pers->sync_request) {
if (mddev->kobj.sd &&
sysfs_create_group(&mddev->kobj, &md_redundancy_group))
- printk(KERN_WARNING
- "md: cannot register extra attributes for %s\n",
- mdname(mddev));
+ pr_warn("md: cannot register extra attributes for %s\n",
+ mdname(mddev));
mddev->sysfs_action = sysfs_get_dirent_safe(mddev->kobj.sd, "sync_action");
} else if (mddev->ro == 2) /* auto-readonly not meaningful */
mddev->ro = 0;
@@ -5418,8 +5404,7 @@ static int restart_array(struct mddev *mddev)
mddev->safemode = 0;
mddev->ro = 0;
set_disk_ro(disk, 0);
- printk(KERN_INFO "md: %s switched to read-write mode.\n",
- mdname(mddev));
+ pr_debug("md: %s switched to read-write mode.\n", mdname(mddev));
/* Kick recovery or resync if necessary */
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
md_wakeup_thread(mddev->thread);
@@ -5513,8 +5498,8 @@ static void mddev_detach(struct mddev *mddev)
struct bitmap *bitmap = mddev->bitmap;
/* wait for behind writes to complete */
if (bitmap && atomic_read(&bitmap->behind_writes) > 0) {
- printk(KERN_INFO "md:%s: behind writes in progress - waiting to stop.\n",
- mdname(mddev));
+ pr_debug("md:%s: behind writes in progress - waiting to stop.\n",
+ mdname(mddev));
/* need to kick something here to make sure I/O goes? */
wait_event(bitmap->behind_wait,
atomic_read(&bitmap->behind_writes) == 0);
@@ -5588,7 +5573,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
if ((mddev->pers && atomic_read(&mddev->openers) > !!bdev) ||
mddev->sync_thread ||
test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) {
- printk("md: %s still in use.\n",mdname(mddev));
+ pr_warn("md: %s still in use.\n",mdname(mddev));
if (did_freeze) {
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
@@ -5650,7 +5635,7 @@ static int do_md_stop(struct mddev *mddev, int mode,
mddev->sysfs_active ||
mddev->sync_thread ||
test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) {
- printk("md: %s still in use.\n",mdname(mddev));
+ pr_warn("md: %s still in use.\n",mdname(mddev));
mutex_unlock(&mddev->open_mutex);
if (did_freeze) {
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
@@ -5687,7 +5672,7 @@ static int do_md_stop(struct mddev *mddev, int mode,
* Free resources if final stop
*/
if (mode == 0) {
- printk(KERN_INFO "md: %s stopped.\n", mdname(mddev));
+ pr_info("md: %s stopped.\n", mdname(mddev));
bitmap_destroy(mddev);
if (mddev->bitmap_info.file) {
@@ -5719,17 +5704,17 @@ static void autorun_array(struct mddev *mddev)
if (list_empty(&mddev->disks))
return;
- printk(KERN_INFO "md: running: ");
+ pr_info("md: running: ");
rdev_for_each(rdev, mddev) {
char b[BDEVNAME_SIZE];
- printk("<%s>", bdevname(rdev->bdev,b));
+ pr_cont("<%s>", bdevname(rdev->bdev,b));
}
- printk("\n");
+ pr_cont("\n");
err = do_md_run(mddev);
if (err) {
- printk(KERN_WARNING "md: do_md_run() returned %d\n", err);
+ pr_warn("md: do_md_run() returned %d\n", err);
do_md_stop(mddev, 0, NULL);
}
}
@@ -5752,7 +5737,7 @@ static void autorun_devices(int part)
struct mddev *mddev;
char b[BDEVNAME_SIZE];
- printk(KERN_INFO "md: autorun ...\n");
+ pr_info("md: autorun ...\n");
while (!list_empty(&pending_raid_disks)) {
int unit;
dev_t dev;
@@ -5760,13 +5745,12 @@ static void autorun_devices(int part)
rdev0 = list_entry(pending_raid_disks.next,
struct md_rdev, same_set);
- printk(KERN_INFO "md: considering %s ...\n",
- bdevname(rdev0->bdev,b));
+ pr_debug("md: considering %s ...\n", bdevname(rdev0->bdev,b));
INIT_LIST_HEAD(&candidates);
rdev_for_each_list(rdev, tmp, &pending_raid_disks)
if (super_90_load(rdev, rdev0, 0) >= 0) {
- printk(KERN_INFO "md: adding %s ...\n",
- bdevname(rdev->bdev,b));
+ pr_debug("md: adding %s ...\n",
+ bdevname(rdev->bdev,b));
list_move(&rdev->same_set, &candidates);
}
/*
@@ -5783,8 +5767,8 @@ static void autorun_devices(int part)
unit = MINOR(dev);
}
if (rdev0->preferred_minor != unit) {
- printk(KERN_INFO "md: unit number in %s is bad: %d\n",
- bdevname(rdev0->bdev, b), rdev0->preferred_minor);
+ pr_warn("md: unit number in %s is bad: %d\n",
+ bdevname(rdev0->bdev, b), rdev0->preferred_minor);
break;
}
@@ -5793,21 +5777,17 @@ static void autorun_devices(int part)
if (!mddev || !mddev->gendisk) {
if (mddev)
mddev_put(mddev);
- printk(KERN_ERR
- "md: cannot allocate memory for md drive.\n");
break;
}
if (mddev_lock(mddev))
- printk(KERN_WARNING "md: %s locked, cannot run\n",
- mdname(mddev));
+ pr_warn("md: %s locked, cannot run\n", mdname(mddev));
else if (mddev->raid_disks || mddev->major_version
|| !list_empty(&mddev->disks)) {
- printk(KERN_WARNING
- "md: %s already running, cannot run %s\n",
+ pr_warn("md: %s already running, cannot run %s\n",
mdname(mddev), bdevname(rdev0->bdev,b));
mddev_unlock(mddev);
} else {
- printk(KERN_INFO "md: created %s\n", mdname(mddev));
+ pr_debug("md: created %s\n", mdname(mddev));
mddev->persistent = 1;
rdev_for_each_list(rdev, tmp, &candidates) {
list_del_init(&rdev->same_set);
@@ -5826,7 +5806,7 @@ static void autorun_devices(int part)
}
mddev_put(mddev);
}
- printk(KERN_INFO "md: ... autorun DONE.\n");
+ pr_info("md: ... autorun DONE.\n");
}
#endif /* !MODULE */
@@ -5982,8 +5962,8 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
if (mddev_is_clustered(mddev) &&
!(info->state & ((1 << MD_DISK_CLUSTER_ADD) | (1 << MD_DISK_CANDIDATE)))) {
- pr_err("%s: Cannot add to clustered mddev.\n",
- mdname(mddev));
+ pr_warn("%s: Cannot add to clustered mddev.\n",
+ mdname(mddev));
return -EINVAL;
}
@@ -5995,8 +5975,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
/* expecting a device which has a superblock */
rdev = md_import_device(dev, mddev->major_version, mddev->minor_version);
if (IS_ERR(rdev)) {
- printk(KERN_WARNING
- "md: md_import_device returned %ld\n",
+ pr_warn("md: md_import_device returned %ld\n",
PTR_ERR(rdev));
return PTR_ERR(rdev);
}
@@ -6007,8 +5986,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
err = super_types[mddev->major_version]
.load_super(rdev, rdev0, mddev->minor_version);
if (err < 0) {
- printk(KERN_WARNING
- "md: %s has different UUID to %s\n",
+ pr_warn("md: %s has different UUID to %s\n",
bdevname(rdev->bdev,b),
bdevname(rdev0->bdev,b2));
export_rdev(rdev);
@@ -6029,9 +6007,8 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
if (mddev->pers) {
int err;
if (!mddev->pers->hot_add_disk) {
- printk(KERN_WARNING
- "%s: personality does not support diskops!\n",
- mdname(mddev));
+ pr_warn("%s: personality does not support diskops!\n",
+ mdname(mddev));
return -EINVAL;
}
if (mddev->persistent)
@@ -6040,8 +6017,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
else
rdev = md_import_device(dev, -1, -1);
if (IS_ERR(rdev)) {
- printk(KERN_WARNING
- "md: md_import_device returned %ld\n",
+ pr_warn("md: md_import_device returned %ld\n",
PTR_ERR(rdev));
return PTR_ERR(rdev);
}
@@ -6137,8 +6113,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
* for major_version==0 superblocks
*/
if (mddev->major_version != 0) {
- printk(KERN_WARNING "%s: ADD_NEW_DISK not supported\n",
- mdname(mddev));
+ pr_warn("%s: ADD_NEW_DISK not supported\n", mdname(mddev));
return -EINVAL;
}
@@ -6146,8 +6121,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
int err;
rdev = md_import_device(dev, -1, 0);
if (IS_ERR(rdev)) {
- printk(KERN_WARNING
- "md: error, md_import_device() returned %ld\n",
+ pr_warn("md: error, md_import_device() returned %ld\n",
PTR_ERR(rdev));
return PTR_ERR(rdev);
}
@@ -6165,7 +6139,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
set_bit(WriteMostly, &rdev->flags);
if (!mddev->persistent) {
- printk(KERN_INFO "md: nonpersistent superblock ...\n");
+ pr_debug("md: nonpersistent superblock ...\n");
rdev->sb_start = i_size_read(rdev->bdev->bd_inode) / 512;
} else
rdev->sb_start = calc_dev_sboffset(rdev);
@@ -6209,8 +6183,8 @@ static int hot_remove_disk(struct mddev *mddev, dev_t dev)
return 0;
busy:
- printk(KERN_WARNING "md: cannot remove active disk %s from %s ...\n",
- bdevname(rdev->bdev,b), mdname(mddev));
+ pr_debug("md: cannot remove active disk %s from %s ...\n",
+ bdevname(rdev->bdev,b), mdname(mddev));
return -EBUSY;
}
@@ -6224,22 +6198,19 @@ static int hot_add_disk(struct mddev *mddev, dev_t dev)
return -ENODEV;
if (mddev->major_version != 0) {
- printk(KERN_WARNING "%s: HOT_ADD may only be used with"
- " version-0 superblocks.\n",
+ pr_warn("%s: HOT_ADD may only be used with version-0 superblocks.\n",
mdname(mddev));
return -EINVAL;
}
if (!mddev->pers->hot_add_disk) {
- printk(KERN_WARNING
- "%s: personality does not support diskops!\n",
+ pr_warn("%s: personality does not support diskops!\n",
mdname(mddev));
return -EINVAL;
}
rdev = md_import_device(dev, -1, 0);
if (IS_ERR(rdev)) {
- printk(KERN_WARNING
- "md: error, md_import_device() returned %ld\n",
+ pr_warn("md: error, md_import_device() returned %ld\n",
PTR_ERR(rdev));
return -EINVAL;
}
@@ -6252,8 +6223,7 @@ static int hot_add_disk(struct mddev *mddev, dev_t dev)
rdev->sectors = rdev->sb_start;
if (test_bit(Faulty, &rdev->flags)) {
- printk(KERN_WARNING
- "md: can not hot-add faulty %s disk to %s!\n",
+ pr_warn("md: can not hot-add faulty %s disk to %s!\n",
bdevname(rdev->bdev,b), mdname(mddev));
err = -EINVAL;
goto abort_export;
@@ -6309,23 +6279,23 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
f = fget(fd);
if (f == NULL) {
- printk(KERN_ERR "%s: error: failed to get bitmap file\n",
- mdname(mddev));
+ pr_warn("%s: error: failed to get bitmap file\n",
+ mdname(mddev));
return -EBADF;
}
inode = f->f_mapping->host;
if (!S_ISREG(inode->i_mode)) {
- printk(KERN_ERR "%s: error: bitmap file must be a regular file\n",
- mdname(mddev));
+ pr_warn("%s: error: bitmap file must be a regular file\n",
+ mdname(mddev));
err = -EBADF;
} else if (!(f->f_mode & FMODE_WRITE)) {
- printk(KERN_ERR "%s: error: bitmap file must open for write\n",
- mdname(mddev));
+ pr_warn("%s: error: bitmap file must open for write\n",
+ mdname(mddev));
err = -EBADF;
} else if (atomic_read(&inode->i_writecount) != 1) {
- printk(KERN_ERR "%s: error: bitmap file is already in use\n",
- mdname(mddev));
+ pr_warn("%s: error: bitmap file is already in use\n",
+ mdname(mddev));
err = -EBUSY;
}
if (err) {
@@ -6390,8 +6360,7 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info)
info->major_version >= ARRAY_SIZE(super_types) ||
super_types[info->major_version].name == NULL) {
/* maybe try to auto-load a module? */
- printk(KERN_INFO
- "md: superblock version %d not known\n",
+ pr_warn("md: superblock version %d not known\n",
info->major_version);
return -EINVAL;
}
@@ -6657,8 +6626,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
if (mddev->bitmap_info.nodes) {
/* hold PW on all the bitmap lock */
if (md_cluster_ops->lock_all_bitmaps(mddev) <= 0) {
- printk("md: can't change bitmap to none since the"
- " array is in use by more than one node\n");
+ pr_warn("md: can't change bitmap to none since the array is in use by more than one node\n");
rv = -EPERM;
md_cluster_ops->unlock_all_bitmaps(mddev);
goto err;
@@ -6844,9 +6812,8 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
}
err = mddev_lock(mddev);
if (err) {
- printk(KERN_INFO
- "md: ioctl lock interrupted, reason %d, cmd %d\n",
- err, cmd);
+ pr_debug("md: ioctl lock interrupted, reason %d, cmd %d\n",
+ err, cmd);
goto out;
}
@@ -6861,30 +6828,24 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
if (mddev->pers) {
err = update_array_info(mddev, &info);
if (err) {
- printk(KERN_WARNING "md: couldn't update"
- " array info. %d\n", err);
+ pr_warn("md: couldn't update array info. %d\n", err);
goto unlock;
}
goto unlock;
}
if (!list_empty(&mddev->disks)) {
- printk(KERN_WARNING
- "md: array %s already has disks!\n",
- mdname(mddev));
+ pr_warn("md: array %s already has disks!\n", mdname(mddev));
err = -EBUSY;
goto unlock;
}
if (mddev->raid_disks) {
- printk(KERN_WARNING
- "md: array %s already initialised!\n",
- mdname(mddev));
+ pr_warn("md: array %s already initialised!\n", mdname(mddev));
err = -EBUSY;
goto unlock;
}
err = set_array_info(mddev, &info);
if (err) {
- printk(KERN_WARNING "md: couldn't set"
- " array info. %d\n", err);
+ pr_warn("md: couldn't set array info. %d\n", err);
goto unlock;
}
goto unlock;
@@ -7585,8 +7546,8 @@ static const struct file_operations md_seq_fops = {
int register_md_personality(struct md_personality *p)
{
- printk(KERN_INFO "md: %s personality registered for level %d\n",
- p->name, p->level);
+ pr_debug("md: %s personality registered for level %d\n",
+ p->name, p->level);
spin_lock(&pers_lock);
list_add_tail(&p->list, &pers_list);
spin_unlock(&pers_lock);
@@ -7596,7 +7557,7 @@ EXPORT_SYMBOL(register_md_personality);
int unregister_md_personality(struct md_personality *p)
{
- printk(KERN_INFO "md: %s personality unregistered\n", p->name);
+ pr_debug("md: %s personality unregistered\n", p->name);
spin_lock(&pers_lock);
list_del_init(&p->list);
spin_unlock(&pers_lock);
@@ -7636,7 +7597,7 @@ int md_setup_cluster(struct mddev *mddev, int nodes)
spin_lock(&pers_lock);
/* ensure module won't be unloaded */
if (!md_cluster_ops || !try_module_get(md_cluster_mod)) {
- pr_err("can't find md-cluster module or get it's reference.\n");
+ pr_warn("can't find md-cluster module or get it's reference.\n");
spin_unlock(&pers_lock);
return -ENOENT;
}
@@ -7911,11 +7872,9 @@ void md_do_sync(struct md_thread *thread)
mddev2->curr_resync >= mddev->curr_resync) {
if (mddev2_minor != mddev2->md_minor) {
mddev2_minor = mddev2->md_minor;
- printk(KERN_INFO "md: delaying %s of %s"
- " until %s has finished (they"
- " share one or more physical units)\n",
- desc, mdname(mddev),
- mdname(mddev2));
+ pr_info("md: delaying %s of %s until %s has finished (they share one or more physical units)\n",
+ desc, mdname(mddev),
+ mdname(mddev2));
}
mddev_put(mddev2);
if (signal_pending(current))
@@ -7972,12 +7931,10 @@ void md_do_sync(struct md_thread *thread)
}
}
- printk(KERN_INFO "md: %s of RAID array %s\n", desc, mdname(mddev));
- printk(KERN_INFO "md: minimum _guaranteed_ speed:"
- " %d KB/sec/disk.\n", speed_min(mddev));
- printk(KERN_INFO "md: using maximum available idle IO bandwidth "
- "(but not more than %d KB/sec) for %s.\n",
- speed_max(mddev), desc);
+ pr_info("md: %s of RAID array %s\n", desc, mdname(mddev));
+ pr_debug("md: minimum _guaranteed_ speed: %d KB/sec/disk.\n", speed_min(mddev));
+ pr_debug("md: using maximum available idle IO bandwidth (but not more than %d KB/sec) for %s.\n",
+ speed_max(mddev), desc);
is_mddev_idle(mddev, 1); /* this initializes IO event counters */
@@ -7994,16 +7951,15 @@ void md_do_sync(struct md_thread *thread)
* Tune reconstruction:
*/
window = 32*(PAGE_SIZE/512);
- printk(KERN_INFO "md: using %dk window, over a total of %lluk.\n",
- window/2, (unsigned long long)max_sectors/2);
+ pr_debug("md: using %dk window, over a total of %lluk.\n",
+ window/2, (unsigned long long)max_sectors/2);
atomic_set(&mddev->recovery_active, 0);
last_check = 0;
if (j>2) {
- printk(KERN_INFO
- "md: resuming %s of %s from checkpoint.\n",
- desc, mdname(mddev));
+ pr_debug("md: resuming %s of %s from checkpoint.\n",
+ desc, mdname(mddev));
mddev->curr_resync = j;
} else
mddev->curr_resync = 3; /* no longer delayed */
@@ -8130,9 +8086,9 @@ void md_do_sync(struct md_thread *thread)
}
}
}
- printk(KERN_INFO "md: %s: %s %s.\n",mdname(mddev), desc,
- test_bit(MD_RECOVERY_INTR, &mddev->recovery)
- ? "interrupted" : "done");
+ pr_info("md: %s: %s %s.\n",mdname(mddev), desc,
+ test_bit(MD_RECOVERY_INTR, &mddev->recovery)
+ ? "interrupted" : "done");
/*
* this also signals 'finished resyncing' to md_stop
*/
@@ -8152,9 +8108,8 @@ void md_do_sync(struct md_thread *thread)
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
if (mddev->curr_resync >= mddev->recovery_cp) {
- printk(KERN_INFO
- "md: checkpointing %s of %s.\n",
- desc, mdname(mddev));
+ pr_debug("md: checkpointing %s of %s.\n",
+ desc, mdname(mddev));
if (test_bit(MD_RECOVERY_ERROR,
&mddev->recovery))
mddev->recovery_cp =
@@ -8302,8 +8257,8 @@ static void md_start_sync(struct work_struct *ws)
mddev,
"resync");
if (!mddev->sync_thread) {
- printk(KERN_ERR "%s: could not start resync thread...\n",
- mdname(mddev));
+ pr_warn("%s: could not start resync thread...\n",
+ mdname(mddev));
/* leave the spares where they are, it shouldn't hurt */
clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
clear_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
@@ -8353,8 +8308,8 @@ void md_check_recovery(struct mddev *mddev)
if (signal_pending(current)) {
if (mddev->pers->sync_request && !mddev->external) {
- printk(KERN_INFO "md: %s in immediate safe mode\n",
- mdname(mddev));
+ pr_debug("md: %s in immediate safe mode\n",
+ mdname(mddev));
mddev->safemode = 2;
}
flush_signals(current);
@@ -8746,7 +8701,7 @@ static void check_sb_changes(struct mddev *mddev, struct md_rdev *rdev)
rdev2->saved_raid_disk = role;
ret = remove_and_add_spares(mddev, rdev2);
pr_info("Activated spare: %s\n",
- bdevname(rdev2->bdev,b));
+ bdevname(rdev2->bdev,b));
/* wakeup mddev->thread here, so array could
* perform resync with the new activated disk */
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
@@ -8871,9 +8826,6 @@ void md_autodetect_dev(dev_t dev)
mutex_lock(&detected_devices_mutex);
list_add_tail(&node_detected_dev->list, &all_detected_devices);
mutex_unlock(&detected_devices_mutex);
- } else {
- printk(KERN_CRIT "md: md_autodetect_dev: kzalloc failed"
- ", skipping dev(%d,%d)\n", MAJOR(dev), MINOR(dev));
}
}
@@ -8887,7 +8839,7 @@ static void autostart_arrays(int part)
i_scanned = 0;
i_passed = 0;
- printk(KERN_INFO "md: Autodetecting RAID arrays.\n");
+ pr_info("md: Autodetecting RAID arrays.\n");
mutex_lock(&detected_devices_mutex);
while (!list_empty(&all_detected_devices) && i_scanned < INT_MAX) {
@@ -8912,8 +8864,7 @@ static void autostart_arrays(int part)
}
mutex_unlock(&detected_devices_mutex);
- printk(KERN_INFO "md: Scanned %d and added %d devices.\n",
- i_scanned, i_passed);
+ pr_debug("md: Scanned %d and added %d devices.\n", i_scanned, i_passed);
autorun_devices(part);
}
--
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