projects/linux·commit 88ed806a

Merge tag 'md/3.18' of git://neil.brown.name/md

88ed806a · Linus Torvalds <[email protected]> · 2014-10-18 11:39:52 -07:00

Pull md updates from Neil Brown:
 - a few minor bug fixes
 - quite a lot of code tidy-up and simplification
 - remove PRINT_RAID_DEBUG ioctl.  I'm fairly sure it is unused, and it
   isn't particularly useful.

* tag 'md/3.18' of git://neil.brown.name/md: (21 commits)
  lib/raid6: Add log level to printks
  md: move EXPORT_SYMBOL to after function in md.c
  md: discard PRINT_RAID_DEBUG ioctl
  md: remove MD_BUG()
  md: clean up 'exit' labels in md_ioctl().
  md: remove unnecessary test for MD_MAJOR in md_ioctl()
  md: don't allow "-sync" to be set for device in an active array.
  md: remove unwanted white space from md.c
  md: don't start resync thread directly from md thread.
  md: Just use RCU when checking for overlap between arrays.
  md: avoid potential long delay under pers_lock
  md: simplify export_array()
  md: discard find_rdev_nr in favour of find_rdev_nr_rcu
  md: use wait_event() to simplify md_super_wait()
  md: be more relaxed about stopping an array which isn't started.
  md/raid1: process_checks doesn't use its return value.
  md/raid5: fix init_stripe() inconsistencies
  md/raid10: another memory leak due to reshape.
  md: use set_bit/clear_bit instead of shift/mask for bi_flags changes.
  md/raid1: minor typos and reformatting.
  ...
Commit
88ed806abb981cc8ec61ee7fab93ecfe63521ebf
Parents
e56d9fcc · b395f75e

Merge commit. Changes below are compared with the first parent: e56d9fcc.

Changes

13 files changed · +266 −533

FileStatusAddDelContent
drivers/md/bitmap.cmodified+6−10View file
drivers/md/linear.cmodified+3−5View file
drivers/md/md.cmodified+195−406View file
drivers/md/md.hmodified+16−18View file
drivers/md/multipath.cmodified+11−17View file
drivers/md/raid0.cmodified+4−5View file
drivers/md/raid1.cmodified+15−22View file
drivers/md/raid1.hmodified+0−2View file
drivers/md/raid10.cmodified+6−12View file
drivers/md/raid5.cmodified+3−26View file
drivers/md/raid5.hmodified+1−3View file
include/uapi/linux/raid/md_u.hmodified+0−1View file
lib/raid6/algos.cmodified+6−6View file

Only the first 600 diff lines are shown. Download the complete patch.

drivers/md/bitmap.c

View file
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 67f8b31..da3604e 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -879,7 +879,6 @@ void bitmap_unplug(struct bitmap *bitmap)
{
unsigned long i;
int dirty, need_write;
- int wait = 0;
if (!bitmap || !bitmap->storage.filemap ||
test_bit(BITMAP_STALE, &bitmap->flags))
@@ -897,16 +896,13 @@ void bitmap_unplug(struct bitmap *bitmap)
clear_page_attr(bitmap, i, BITMAP_PAGE_PENDING);
write_page(bitmap, bitmap->storage.filemap[i], 0);
}
- if (dirty)
- wait = 1;
- }
- if (wait) { /* if any writes were performed, we need to wait on them */
- if (bitmap->storage.file)
- wait_event(bitmap->write_wait,
- atomic_read(&bitmap->pending_writes)==0);
- else
- md_super_wait(bitmap->mddev);
}
+ if (bitmap->storage.file)
+ wait_event(bitmap->write_wait,
+ atomic_read(&bitmap->pending_writes)==0);
+ else
+ md_super_wait(bitmap->mddev);
+
if (test_bit(BITMAP_WRITE_ERROR, &bitmap->flags))
bitmap_file_kick(bitmap);
}

drivers/md/linear.c

View file
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 56f534b..64713b7 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -10,10 +10,10 @@
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
-
+
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.
+ Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/blkdev.h>
@@ -25,7 +25,7 @@
#include "linear.h"
/*
- * find which device holds a particular offset
+ * find which device holds a particular offset
*/
static inline struct dev_info *which_dev(struct mddev *mddev, sector_t sector)
{
@@ -355,7 +355,6 @@ static void linear_status (struct seq_file *seq, struct mddev *mddev)
seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2);
}
-
static struct md_personality linear_personality =
{
.name = "linear",
@@ -379,7 +378,6 @@ static void linear_exit (void)
unregister_md_personality (&linear_personality);
}
-
module_init(linear_init);
module_exit(linear_exit);
MODULE_LICENSE("GPL");

drivers/md/md.c

View file
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1294238..4dfa15d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1,6 +1,6 @@
/*
md.c : Multiple Devices driver for Linux
- Copyright (C) 1998, 1999, 2000 Ingo Molnar
+ Copyright (C) 1998, 1999, 2000 Ingo Molnar
completely rewritten, based on the MD driver code from Marc Zyngier
@@ -66,8 +66,6 @@ static void autostart_arrays(int part);
static LIST_HEAD(pers_list);
static DEFINE_SPINLOCK(pers_lock);
-static void md_print_devices(void);
-
static DECLARE_WAIT_QUEUE_HEAD(resync_wait);
static struct workqueue_struct *md_wq;
static struct workqueue_struct *md_misc_wq;
@@ -75,8 +73,6 @@ static struct workqueue_struct *md_misc_wq;
static int remove_and_add_spares(struct mddev *mddev,
struct md_rdev *this);
-#define MD_BUG(x...) { printk("md: bug in file %s, line %d\n", __FILE__, __LINE__); md_print_devices(); }
-
/*
* Default number of read corrections we'll attempt on an rdev
* before ejecting it from the array. We divide the read error
@@ -218,7 +214,6 @@ static void md_new_event_inintr(struct mddev *mddev)
static LIST_HEAD(all_mddevs);
static DEFINE_SPINLOCK(all_mddevs_lock);
-
/*
* iterates through all used mddevs in the system.
* We take care to grab the all_mddevs_lock whenever navigating
@@ -228,7 +223,7 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
*/
#define for_each_mddev(_mddev,_tmp) \
\
- for (({ spin_lock(&all_mddevs_lock); \
+ for (({ spin_lock(&all_mddevs_lock); \
_tmp = all_mddevs.next; \
_mddev = NULL;}); \
({ if (_tmp != &all_mddevs) \
@@ -241,7 +236,6 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
_tmp = _tmp->next;}) \
)
-
/* Rather than calling directly into the personality make_request function,
* IO requests come here first so that we can check if the device is
* being suspended pending a reconfiguration.
@@ -488,7 +482,7 @@ void mddev_init(struct mddev *mddev)
}
EXPORT_SYMBOL_GPL(mddev_init);
-static struct mddev * mddev_find(dev_t unit)
+static struct mddev *mddev_find(dev_t unit)
{
struct mddev *mddev, *new = NULL;
@@ -530,7 +524,7 @@ static struct mddev * mddev_find(dev_t unit)
kfree(new);
return NULL;
}
-
+
is_free = 1;
list_for_each_entry(mddev, &all_mddevs, all_mddevs)
if (mddev->unit == dev) {
@@ -562,7 +556,7 @@ static struct mddev * mddev_find(dev_t unit)
goto retry;
}
-static inline int __must_check mddev_lock(struct mddev * mddev)
+static inline int __must_check mddev_lock(struct mddev *mddev)
{
return mutex_lock_interruptible(&mddev->reconfig_mutex);
}
@@ -570,7 +564,7 @@ static inline int __must_check mddev_lock(struct mddev * mddev)
/* Sometimes we need to take the lock in a situation where
* failure due to interrupts is not acceptable.
*/
-static inline void mddev_lock_nointr(struct mddev * mddev)
+static inline void mddev_lock_nointr(struct mddev *mddev)
{
mutex_lock(&mddev->reconfig_mutex);
}
@@ -580,14 +574,14 @@ static inline int mddev_is_locked(struct mddev *mddev)
return mutex_is_locked(&mddev->reconfig_mutex);
}
-static inline int mddev_trylock(struct mddev * mddev)
+static inline int mddev_trylock(struct mddev *mddev)
{
return mutex_trylock(&mddev->reconfig_mutex);
}
static struct attribute_group md_redundancy_group;
-static void mddev_unlock(struct mddev * mddev)
+static void mddev_unlock(struct mddev *mddev)
{
if (mddev->to_remove) {
/* These cannot be removed under reconfig_mutex as
@@ -630,17 +624,6 @@ static void mddev_unlock(struct mddev * mddev)
spin_unlock(&pers_lock);
}
-static struct md_rdev * find_rdev_nr(struct mddev *mddev, int nr)
-{
- struct md_rdev *rdev;
-
- rdev_for_each(rdev, mddev)
- if (rdev->desc_nr == nr)
- return rdev;
-
- return NULL;
-}
-
static struct md_rdev *find_rdev_nr_rcu(struct mddev *mddev, int nr)
{
struct md_rdev *rdev;
@@ -693,11 +676,8 @@ static inline sector_t calc_dev_sboffset(struct md_rdev *rdev)
return MD_NEW_SIZE_SECTORS(num_sectors);
}
-static int alloc_disk_sb(struct md_rdev * rdev)
+static int alloc_disk_sb(struct md_rdev *rdev)
{
- if (rdev->sb_page)
- MD_BUG();
-
rdev->sb_page = alloc_page(GFP_KERNEL);
if (!rdev->sb_page) {
printk(KERN_ALERT "md: out of memory.\n");
@@ -766,14 +746,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
void md_super_wait(struct mddev *mddev)
{
/* wait for all superblock writes that were scheduled to complete */
- DEFINE_WAIT(wq);
- for(;;) {
- prepare_to_wait(&mddev->sb_wait, &wq, TASK_UNINTERRUPTIBLE);
- if (atomic_read(&mddev->pending_writes)==0)
- break;
- schedule();
- }
- finish_wait(&mddev->sb_wait, &wq);
+ wait_event(mddev->sb_wait, atomic_read(&mddev->pending_writes)==0);
}
int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
@@ -801,17 +774,13 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
}
EXPORT_SYMBOL_GPL(sync_page_io);
-static int read_disk_sb(struct md_rdev * rdev, int size)
+static int read_disk_sb(struct md_rdev *rdev, int size)
{
char b[BDEVNAME_SIZE];
- if (!rdev->sb_page) {
- MD_BUG();
- return -EINVAL;
- }
+
if (rdev->sb_loaded)
return 0;
-
if (!sync_page_io(rdev, 0, size, rdev->sb_page, READ, true))
goto fail;
rdev->sb_loaded = 1;
@@ -825,7 +794,7 @@ fail:
static int uuid_equal(mdp_super_t *sb1, mdp_super_t *sb2)
{
- return sb1->set_uuid0 == sb2->set_uuid0 &&
+ return sb1->set_uuid0 == sb2->set_uuid0 &&
sb1->set_uuid1 == sb2->set_uuid1 &&
sb1->set_uuid2 == sb2->set_uuid2 &&
sb1->set_uuid3 == sb2->set_uuid3;
@@ -861,14 +830,13 @@ abort:
return ret;
}
-
static u32 md_csum_fold(u32 csum)
{
csum = (csum & 0xffff) + (csum >> 16);
return (csum & 0xffff) + (csum >> 16);
}
-static unsigned int calc_sb_csum(mdp_super_t * sb)
+static unsigned int calc_sb_csum(mdp_super_t *sb)
{
u64 newcsum = 0;
u32 *sb32 = (u32*)sb;
@@ -882,7 +850,6 @@ static unsigned int calc_sb_csum(mdp_super_t * sb)
newcsum += sb32[i];
csum = (newcsum & 0xffffffff) + (newcsum>>32);
-
#ifdef CONFIG_ALPHA
/* This used to use csum_partial, which was wrong for several
* reasons including that different results are returned on
@@ -899,7 +866,6 @@ static unsigned int calc_sb_csum(mdp_super_t * sb)
return csum;
}
-
/*
* Handle superblock details.
* We want to be able to handle multiple superblock formats
@@ -965,7 +931,7 @@ int md_check_no_bitmap(struct mddev *mddev)
EXPORT_SYMBOL(md_check_no_bitmap);
/*
- * load_super for 0.90.0
+ * load_super for 0.90.0
*/
static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_version)
{
@@ -1044,7 +1010,7 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
ev2 = md_event(refsb);
if (ev1 > ev2)
ret = 1;
- else
+ else
ret = 0;
}
rdev->sectors = rdev->sb_start;
@@ -1118,7 +1084,7 @@ static int super_90_validate(struct mddev *mddev, struct md_rdev *rdev)
if (sb->state & (1<<MD_SB_CLEAN))
mddev->recovery_cp = MaxSector;
else {
- if (sb->events_hi == sb->cp_events_hi &&
+ if (sb->events_hi == sb->cp_events_hi &&
sb->events_lo == sb->cp_events_lo) {
mddev->recovery_cp = sb->recovery_cp;
} else
@@ -1146,7 +1112,7 @@ static int super_90_validate(struct mddev *mddev, struct md_rdev *rdev)
++ev1;
if (sb->disks[rdev->desc_nr].state & (
(1<<MD_DISK_SYNC) | (1 << MD_DISK_ACTIVE)))
- if (ev1 < mddev->events)
+ if (ev1 < mddev->events)
return -EINVAL;
} else if (mddev->bitmap) {
/* if adding to array with a bitmap, then we can accept an
@@ -1197,7 +1163,6 @@ static void super_90_sync(struct mddev *mddev, struct md_rdev *rdev)
struct md_rdev *rdev2;
int next_spare = mddev->raid_disks;
-
/* make rdev->sb match mddev data..
*
* 1/ zero out disks
@@ -1366,7 +1331,7 @@ super_90_allow_new_offset(struct md_rdev *rdev, unsigned long long new_offset)
* version 1 superblock
*/
-static __le32 calc_sb_1_csum(struct mdp_superblock_1 * sb)
+static __le32 calc_sb_1_csum(struct mdp_superblock_1 *sb)
{
__le32 disk_csum;
u32 csum;
@@ -1430,7 +1395,6 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
ret = read_disk_sb(rdev, 4096);
if (ret) return ret;
-
sb = page_address(rdev->sb_page);
if (sb->magic != cpu_to_le32(MD_SB_MAGIC) ||
@@ -1817,7 +1781,7 @@ retry:
for (i=0; i<max_dev;i++)
sb->dev_roles[i] = cpu_to_le16(0xfffe);
-
+
rdev_for_each(rdev2, mddev) {
i = rdev2->desc_nr;
if (test_bit(Faulty, &rdev2->flags))
@@ -2033,18 +1997,13 @@ void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
}
EXPORT_SYMBOL(md_integrity_add_rdev);
-static int bind_rdev_to_array(struct md_rdev * rdev, struct mddev * mddev)
+static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
{
char b[BDEVNAME_SIZE];
struct kobject *ko;
char *s;
int err;
- if (rdev->mddev) {
- MD_BUG();
- return -EINVAL;
- }
-
/* prevent duplicates */
if (find_rdev(mddev, rdev->bdev->bd_dev))
return -EEXIST;
@@ -2067,16 +2026,21 @@ static int bind_rdev_to_array(struct md_rdev * rdev, struct mddev * mddev)
* If it is -1, assign a free number, else
* check number is not in use
*/
+ rcu_read_lock();
if (rdev->desc_nr < 0) {
int choice = 0;
- if (mddev->pers) choice = mddev->raid_disks;
- while (find_rdev_nr(mddev, choice))
+ if (mddev->pers)
+ choice = mddev->raid_disks;
+ while (find_rdev_nr_rcu(mddev, choice))
choice++;
rdev->desc_nr = choice;
} else {
- if (find_rdev_nr(mddev, rdev->desc_nr))
+ if (find_rdev_nr_rcu(mddev, rdev->desc_nr)) {
+ rcu_read_unlock();
return -EBUSY;
+ }
}
+ rcu_read_unlock();
if (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);
@@ -2118,13 +2082,10 @@ static void md_delayed_delete(struct work_struct *ws)
kobject_put(&rdev->kobj);
}
-static void unbind_rdev_from_array(struct md_rdev * rdev)
+static void unbind_rdev_from_array(struct md_rdev *rdev)
{
char b[BDEVNAME_SIZE];
- if (!rdev->mddev) {
- MD_BUG();
- return;
- }
+
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));
@@ -2169,20 +2130,17 @@ static void unlock_rdev(struct md_rdev *rdev)
{
struct block_device *bdev = rdev->bdev;
rdev->bdev = NULL;
- if (!bdev)
- MD_BUG();
blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
}
void md_autodetect_dev(dev_t dev);
-static void export_rdev(struct md_rdev * rdev)
+static void export_rdev(struct md_rdev *rdev)
{
char b[BDEVNAME_SIZE];
+
printk(KERN_INFO "md: export_rdev(%s)\n",
bdevname(rdev->bdev,b));
- if (rdev->mddev)
- MD_BUG();
md_rdev_clear(rdev);
#ifndef MODULE
if (test_bit(AutoDetected, &rdev->flags))
@@ -2192,7 +2150,7 @@ static void export_rdev(struct md_rdev * rdev)
kobject_put(&rdev->kobj);
}
-static void kick_rdev_from_array(struct md_rdev * rdev)
+static void kick_rdev_from_array(struct md_rdev *rdev)
{
unbind_rdev_from_array(rdev);
export_rdev(rdev);
@@ -2200,153 +2158,18 @@ static void kick_rdev_from_array(struct md_rdev * rdev)
static void export_array(struct mddev *mddev)
{
- struct md_rdev *rdev, *tmp;
+ struct md_rdev *rdev;
- rdev_for_each_safe(rdev, tmp, mddev) {
- if (!rdev->mddev) {
- MD_BUG();
- continue;
- }
+ while (!list_empty(&mddev->disks)) {
+ rdev = list_first_entry(&mddev->disks, struct md_rdev,
+ same_set);
kick_rdev_from_array(rdev);
}
- if (!list_empty(&mddev->disks))
- MD_BUG();
mddev->raid_disks = 0;
mddev->major_version = 0;
}
-static void print_desc(mdp_disk_t *desc)
-{
- printk(" DISK<N:%d,(%d,%d),R:%d,S:%d>\n", desc->number,
- desc->major,desc->minor,desc->raid_disk,desc->state);
-}
-
-static void print_sb_90(mdp_super_t *sb)
-{
- int i;
-
- printk(KERN_INFO
- "md: SB: (V:%d.%d.%d) ID:<%08x.%08x.%08x.%08x> CT:%08x\n",
- sb->major_version, sb->minor_version, sb->patch_version,
- sb->set_uuid0, sb->set_uuid1, sb->set_uuid2, sb->set_uuid3,
- sb->ctime);
- printk(KERN_INFO "md: L%d S%08d ND:%d RD:%d md%d LO:%d CS:%d\n",
- sb->level, sb->size, sb->nr_disks, sb->raid_disks,
- sb->md_minor, sb->layout, sb->chunk_size);
- printk(KERN_INFO "md: UT:%08x ST:%d AD:%d WD:%d"
- " FD:%d SD:%d CSUM:%08x E:%08lx\n",
- sb->utime, sb->state, sb->active_disks, sb->working_disks,
- sb->failed_disks, sb->spare_disks,
- sb->sb_csum, (unsigned long)sb->events_lo);
-
- printk(KERN_INFO);
- for (i = 0; i < MD_SB_DISKS; i++) {
- mdp_disk_t *desc;
-
- desc = sb->disks + i;
- if (desc->number || desc->major || desc->minor ||
- desc->raid_disk || (desc->state && (desc->state != 4))) {
- printk(" D %2d: ", i);
- print_desc(desc);
- }
- }
- printk(KERN_INFO "md: THIS: ");
- print_desc(&sb->this_disk);
-}
-
-static void print_sb_1(struct mdp_superblock_1 *sb)
-{
- __u8 *uuid;
-
- uuid = sb->set_uuid;
- printk(KERN_INFO
- "md: SB: (V:%u) (F:0x%08x) Array-ID:<%pU>\n"
- "md: Name: \"%s\" CT:%llu\n",
- le32_to_cpu(sb->major_version),
- le32_to_cpu(sb->feature_map),
- uuid,
- sb->set_name,
- (unsigned long long)le64_to_cpu(sb->ctime)
- & MD_SUPERBLOCK_1_TIME_SEC_MASK);
-
- uuid = sb->device_uuid;
- printk(KERN_INFO
- "md: L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu"
- " RO:%llu\n"
- "md: Dev:%08x UUID: %pU\n"
- "md: (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n"
- "md: (MaxDev:%u) \n",
- le32_to_cpu(sb->level),
- (unsigned long long)le64_to_cpu(sb->size),
- le32_to_cpu(sb->raid_disks),
- le32_to_cpu(sb->layout),
- le32_to_cpu(sb->chunksize),
- (unsigned long long)le64_to_cpu(sb->data_offset),
- (unsigned long long)le64_to_cpu(sb->data_size),
- (unsigned long long)le64_to_cpu(sb->super_offset),
- (unsigned long long)le64_to_cpu(sb->recovery_offset),
- le32_to_cpu(sb->dev_number),
- uuid,
- sb->devflags,
- (unsigned long long)le64_to_cpu(sb->utime) & MD_SUPERBLOCK_1_TIME_SEC_MASK,
- (unsigned long long)le64_to_cpu(sb->events),
- (unsigned long long)le64_to_cpu(sb->resync_offset),
- le32_to_cpu(sb->sb_csum),
- le32_to_cpu(sb->max_dev)
- );
-}
-
-static void print_rdev(struct md_rdev *rdev, int major_version)
-{
- char b[BDEVNAME_SIZE];
- printk(KERN_INFO "md: rdev %s, Sect:%08llu F:%d S:%d DN:%u\n",
- bdevname(rdev->bdev, b), (unsigned long long)rdev->sectors,
- test_bit(Faulty, &rdev->flags), test_bit(In_sync, &rdev->flags),
- rdev->desc_nr);
- if (rdev->sb_loaded) {
- printk(KERN_INFO "md: rdev superblock (MJ:%d):\n", major_version);
- switch (major_version) {
- case 0:
- print_sb_90(page_address(rdev->sb_page));
- break;
- case 1:
- print_sb_1(page_address(rdev->sb_page));
- break;
- }
- } else
- printk(KERN_INFO "md: no rdev superblock!\n");
-}
-
-static void md_print_devices(void)
-{
- struct list_head *tmp;
- struct md_rdev *rdev;
- struct mddev *mddev;
- char b[BDEVNAME_SIZE];
-
- printk("\n");
- printk("md: **********************************\n");
- printk("md: * <COMPLETE RAID STATE PRINTOUT> *\n");
- printk("md: **********************************\n");
- for_each_mddev(mddev, tmp) {
-
- if (mddev->bitmap)
- bitmap_print_sb(mddev->bitmap);
- else
- printk("%s: ", mdname(mddev));
- rdev_for_each(rdev, mddev)
- printk("<%s>", bdevname(rdev->bdev,b));

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drivers/md/md.h

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drivers/md/multipath.c

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drivers/md/raid0.c

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drivers/md/raid1.c

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drivers/md/raid1.h

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drivers/md/raid10.c

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drivers/md/raid5.c

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drivers/md/raid5.h

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include/uapi/linux/raid/md_u.h

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lib/raid6/algos.c

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