From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 4 Oct 2016 20:30:07 +0200
1. Add a definition for the macros "MY_LOG_PREFIX" and "pr_fmt"
so that their information can be used for consistent message output.
2. Prefer usage of some higher level macros over calling "printk" directly
in this software module.
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/md/raid1.c | 91 ++++++++++++++++++++++++++----------------------------
1 file changed, 43 insertions(+), 48 deletions(-)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 3a1194e..9754b7d 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -31,6 +31,8 @@
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define MY_LOG_PREFIX KBUILD_MODNAME ": "
+#define pr_fmt(fmt) MY_LOG_PREFIX fmt
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/blkdev.h>
@@ -347,13 +349,11 @@ static void raid1_end_read_request(struct bio *bio)
* oops, read error:
*/
char b[BDEVNAME_SIZE];
- printk_ratelimited(
- KERN_ERR "md/raid1:%s: %s: "
- "rescheduling sector %llu\n",
- mdname(conf->mddev),
- bdevname(rdev->bdev,
- b),
- (unsigned long long)r1_bio->sector);
+
+ pr_err_ratelimited("%s: %s: rescheduling sector %llu\n",
+ mdname(conf->mddev),
+ bdevname(rdev->bdev, b),
+ (unsigned long long)r1_bio->sector);
set_bit(R1BIO_ReadError, &r1_bio->state);
reschedule_retry(r1_bio);
/* don't drop the reference on read_disk yet */
@@ -1457,34 +1457,34 @@ static void raid1_error(struct mddev *mddev, struct md_rdev *rdev)
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
set_mask_bits(&mddev->flags, 0,
BIT(MD_CHANGE_DEVS) | BIT(MD_CHANGE_PENDING));
- printk(KERN_ALERT
- "md/raid1:%s: Disk failure on %s, disabling device.\n"
- "md/raid1:%s: Operation continuing on %d devices.\n",
- mdname(mddev), bdevname(rdev->bdev, b),
- mdname(mddev), conf->raid_disks - mddev->degraded);
+ pr_alert("%s: Disk failure on %s, disabling device.\n"
+ MY_LOG_PREFIX "%s: Operation continuing on %d devices.\n",
+ mdname(mddev), bdevname(rdev->bdev, b),
+ mdname(mddev), conf->raid_disks - mddev->degraded);
}
static void print_conf(struct r1conf *conf)
{
int i;
- printk(KERN_DEBUG "RAID1 conf printout:\n");
+ pr_debug("conf printout:\n");
if (!conf) {
- printk(KERN_DEBUG "(!conf)\n");
+ pr_debug("(!conf)\n");
return;
}
- printk(KERN_DEBUG " --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,
- conf->raid_disks);
+ pr_debug("--- wd:%d rd:%d\n",
+ conf->raid_disks - conf->mddev->degraded,
+ conf->raid_disks);
rcu_read_lock();
for (i = 0; i < conf->raid_disks; i++) {
char b[BDEVNAME_SIZE];
struct md_rdev *rdev = rcu_dereference(conf->mirrors[i].rdev);
if (rdev)
- printk(KERN_DEBUG " disk %d, wo:%d, o:%d, dev:%s\n",
- i, !test_bit(In_sync, &rdev->flags),
- !test_bit(Faulty, &rdev->flags),
- bdevname(rdev->bdev,b));
+ pr_debug("disk %d, wo:%d, o:%d, dev:%s\n",
+ i, !test_bit(In_sync, &rdev->flags),
+ !test_bit(Faulty, &rdev->flags),
+ bdevname(rdev->bdev, b));
}
rcu_read_unlock();
}
@@ -1821,11 +1821,10 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
* work just disable and interrupt the recovery.
* Don't fail devices as that won't really help.
*/
- printk(KERN_ALERT "md/raid1:%s: %s: unrecoverable I/O read error"
- " for block %llu\n",
- mdname(mddev),
- bdevname(bio->bi_bdev, b),
- (unsigned long long)r1_bio->sector);
+ pr_alert("%s: %s: unrecoverable I/O read error for block %llu\n",
+ mdname(mddev),
+ bdevname(bio->bi_bdev, b),
+ (unsigned long long)r1_bio->sector);
for (d = 0; d < conf->raid_disks * 2; d++) {
rdev = conf->mirrors[d].rdev;
if (!rdev || test_bit(Faulty, &rdev->flags))
@@ -2118,13 +2117,13 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
if (r1_sync_page_io(rdev, sect, s,
conf->tmppage, READ)) {
atomic_add(s, &rdev->corrected_errors);
- printk(KERN_INFO
- "md/raid1:%s: read error corrected "
- "(%d sectors at %llu on %s)\n",
- mdname(mddev), s,
- (unsigned long long)(sect +
- rdev->data_offset),
- bdevname(rdev->bdev, b));
+ pr_info("%s: read error corrected "
+ "(%d sectors at %llu on %s)\n",
+ mdname(mddev),
+ s,
+ (unsigned long long)(sect +
+ rdev->data_offset),
+ bdevname(rdev->bdev, b));
}
rdev_dec_pending(rdev, mddev);
} else
@@ -2307,9 +2306,8 @@ static void handle_read_error(struct r1conf *conf, struct r1bio *r1_bio)
read_more:
disk = read_balance(conf, r1_bio, &max_sectors);
if (disk == -1) {
- printk(KERN_ALERT "md/raid1:%s: %s: unrecoverable I/O"
- " read error for block %llu\n",
- mdname(mddev), b, (unsigned long long)r1_bio->sector);
+ pr_alert("%s: %s: unrecoverable I/O read error for block %llu\n",
+ mdname(mddev), b, (unsigned long long)r1_bio->sector);
raid_end_bio_io(r1_bio);
} else {
const unsigned long do_sync
@@ -2325,8 +2323,7 @@ static void handle_read_error(struct r1conf *conf, struct r1bio *r1_bio)
max_sectors);
r1_bio->bios[r1_bio->read_disk] = bio;
rdev = conf->mirrors[disk].rdev;
- printk_ratelimited(KERN_ERR
- "md/raid1:%s: redirecting sector %llu"
+ pr_err_ratelimited("%s: redirecting sector %llu"
" to other mirror: %s\n",
mdname(mddev),
(unsigned long long)r1_bio->sector,
@@ -2910,12 +2907,12 @@ static int raid1_run(struct mddev *mddev)
bool discard_supported = false;
if (mddev->level != 1) {
- printk(KERN_ERR "md/raid1:%s: raid level not set to mirroring (%d)\n",
+ pr_err("%s: raid level not set to mirroring (%d)\n",
mdname(mddev), mddev->level);
return -EIO;
}
if (mddev->reshape_position != MaxSector) {
- printk(KERN_ERR "md/raid1:%s: reshape_position set but not supported\n",
+ pr_err("%s: reshape_position set but not supported\n",
mdname(mddev));
return -EIO;
}
@@ -2955,12 +2952,11 @@ static int raid1_run(struct mddev *mddev)
mddev->recovery_cp = MaxSector;
if (mddev->recovery_cp != MaxSector)
- printk(KERN_NOTICE "md/raid1:%s: not clean"
- " -- starting background reconstruction\n",
- mdname(mddev));
- printk(KERN_INFO
- "md/raid1:%s: active with %d out of %d mirrors\n",
- mdname(mddev), mddev->raid_disks - mddev->degraded,
+ pr_notice("%s: not clean -- starting background reconstruction\n",
+ mdname(mddev));
+ pr_info("%s: active with %d out of %d mirrors\n",
+ mdname(mddev),
+ mddev->raid_disks - mddev->degraded,
mddev->raid_disks);
/*
@@ -3112,9 +3108,8 @@ static int raid1_reshape(struct mddev *mddev)
rdev->raid_disk = d2;
sysfs_unlink_rdev(mddev, rdev);
if (sysfs_link_rdev(mddev, rdev))
- printk(KERN_WARNING
- "md/raid1:%s: cannot register rd%d\n",
- mdname(mddev), rdev->raid_disk);
+ pr_warn("%s: cannot register rd%d\n",
+ mdname(mddev), rdev->raid_disk);
}
if (rdev)
newmirrors[d2++].rdev = rdev;
--
2.10.1
--
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