unsigned long long newcsum;
int size = 256 + le32_to_cpu(sb->max_dev)*2;
__le32 *isuper = (__le32*)sb;
- int i;
disk_csum = sb->sb_csum;
sb->sb_csum = 0;
newcsum = 0;
- for (i=0; size>=4; size -= 4 )
+ for (; size >= 4; size -= 4)
newcsum += le32_to_cpu(*isuper++);
if (size == 2)
memset(bbp, 0xff, PAGE_SIZE);
for (i = 0 ; i < bb->count ; i++) {
- u64 internal_bb = *p++;
+ u64 internal_bb = p[i];
u64 store_bb = ((BB_OFFSET(internal_bb) << 10)
| BB_LEN(internal_bb));
- *bbp++ = cpu_to_le64(store_bb);
+ bbp[i] = cpu_to_le64(store_bb);
}
bb->changed = 0;
if (read_seqretry(&bb->lock, seq))
}
mddev_get(mddev);
spin_unlock(&all_mddevs_lock);
+ if (entry->store == new_dev_store)
+ flush_workqueue(md_misc_wq);
rv = mddev_lock(mddev);
if (!rv) {
rv = entry->store(mddev, page, length);
}
EXPORT_SYMBOL_GPL(md_stop_writes);
-void md_stop(struct mddev *mddev)
+static void __md_stop(struct mddev *mddev)
{
mddev->ready = 0;
mddev->pers->stop(mddev);
mddev->pers = NULL;
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
}
+
+void md_stop(struct mddev *mddev)
+{
+ /* stop the array and free an attached data structures.
+ * This is called from dm-raid
+ */
+ __md_stop(mddev);
+ bitmap_destroy(mddev);
+ if (mddev->bio_set)
+ bioset_free(mddev->bio_set);
+}
+
EXPORT_SYMBOL_GPL(md_stop);
static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
set_disk_ro(disk, 0);
__md_stop_writes(mddev);
- md_stop(mddev);
+ __md_stop(mddev);
mddev->queue->merge_bvec_fn = NULL;
mddev->queue->backing_dev_info.congested_fn = NULL;
* Commands dealing with the RAID driver but not any
* particular array:
*/
- switch (cmd)
- {
- case RAID_VERSION:
- err = get_version(argp);
- goto done;
+ switch (cmd) {
+ case RAID_VERSION:
+ err = get_version(argp);
+ goto done;
- case PRINT_RAID_DEBUG:
- err = 0;
- md_print_devices();
- goto done;
+ case PRINT_RAID_DEBUG:
+ err = 0;
+ md_print_devices();
+ goto done;
#ifndef MODULE
- case RAID_AUTORUN:
- err = 0;
- autostart_arrays(arg);
- goto done;
+ case RAID_AUTORUN:
+ err = 0;
+ autostart_arrays(arg);
+ goto done;
#endif
- default:;
+ default:;
}
/*
goto abort;
}
+ if (cmd == ADD_NEW_DISK)
+ /* need to ensure md_delayed_delete() has completed */
+ flush_workqueue(md_misc_wq);
+
err = mddev_lock(mddev);
if (err) {
printk(KERN_INFO
goto abort;
}
- switch (cmd)
- {
- case SET_ARRAY_INFO:
- {
- mdu_array_info_t info;
- if (!arg)
- memset(&info, 0, sizeof(info));
- else if (copy_from_user(&info, argp, sizeof(info))) {
- err = -EFAULT;
- goto abort_unlock;
- }
- if (mddev->pers) {
- err = update_array_info(mddev, &info);
- if (err) {
- printk(KERN_WARNING "md: couldn't update"
- " array info. %d\n", err);
- goto abort_unlock;
- }
- goto done_unlock;
- }
- if (!list_empty(&mddev->disks)) {
- printk(KERN_WARNING
- "md: array %s already has disks!\n",
- mdname(mddev));
- err = -EBUSY;
- goto abort_unlock;
- }
- if (mddev->raid_disks) {
- printk(KERN_WARNING
- "md: array %s already initialised!\n",
- mdname(mddev));
- err = -EBUSY;
- goto abort_unlock;
- }
- err = set_array_info(mddev, &info);
- if (err) {
- printk(KERN_WARNING "md: couldn't set"
- " array info. %d\n", err);
- goto abort_unlock;
- }
+ if (cmd == SET_ARRAY_INFO) {
+ mdu_array_info_t info;
+ if (!arg)
+ memset(&info, 0, sizeof(info));
+ else if (copy_from_user(&info, argp, sizeof(info))) {
+ err = -EFAULT;
+ goto abort_unlock;
+ }
+ if (mddev->pers) {
+ err = update_array_info(mddev, &info);
+ if (err) {
+ printk(KERN_WARNING "md: couldn't update"
+ " array info. %d\n", err);
+ goto abort_unlock;
}
goto done_unlock;
-
- default:;
+ }
+ if (!list_empty(&mddev->disks)) {
+ printk(KERN_WARNING
+ "md: array %s already has disks!\n",
+ mdname(mddev));
+ err = -EBUSY;
+ goto abort_unlock;
+ }
+ if (mddev->raid_disks) {
+ printk(KERN_WARNING
+ "md: array %s already initialised!\n",
+ mdname(mddev));
+ err = -EBUSY;
+ goto abort_unlock;
+ }
+ err = set_array_info(mddev, &info);
+ if (err) {
+ printk(KERN_WARNING "md: couldn't set"
+ " array info. %d\n", err);
+ goto abort_unlock;
+ }
+ goto done_unlock;
}
/*
/*
* Commands even a read-only array can execute:
*/
- switch (cmd)
- {
- case GET_BITMAP_FILE:
- err = get_bitmap_file(mddev, argp);
- goto done_unlock;
+ switch (cmd) {
+ case GET_BITMAP_FILE:
+ err = get_bitmap_file(mddev, argp);
+ goto done_unlock;
- case RESTART_ARRAY_RW:
- err = restart_array(mddev);
- goto done_unlock;
+ case RESTART_ARRAY_RW:
+ err = restart_array(mddev);
+ goto done_unlock;
- case STOP_ARRAY:
- err = do_md_stop(mddev, 0, bdev);
- goto done_unlock;
+ case STOP_ARRAY:
+ err = do_md_stop(mddev, 0, bdev);
+ goto done_unlock;
- case STOP_ARRAY_RO:
- err = md_set_readonly(mddev, bdev);
- goto done_unlock;
+ case STOP_ARRAY_RO:
+ err = md_set_readonly(mddev, bdev);
+ goto done_unlock;
- case BLKROSET:
- if (get_user(ro, (int __user *)(arg))) {
- err = -EFAULT;
- goto done_unlock;
- }
- err = -EINVAL;
+ case BLKROSET:
+ if (get_user(ro, (int __user *)(arg))) {
+ err = -EFAULT;
+ goto done_unlock;
+ }
+ err = -EINVAL;
- /* if the bdev is going readonly the value of mddev->ro
- * does not matter, no writes are coming
- */
- if (ro)
- goto done_unlock;
+ /* if the bdev is going readonly the value of mddev->ro
+ * does not matter, no writes are coming
+ */
+ if (ro)
+ goto done_unlock;
- /* are we are already prepared for writes? */
- if (mddev->ro != 1)
- goto done_unlock;
+ /* are we are already prepared for writes? */
+ if (mddev->ro != 1)
+ goto done_unlock;
- /* transitioning to readauto need only happen for
- * arrays that call md_write_start
- */
- if (mddev->pers) {
- err = restart_array(mddev);
- if (err == 0) {
- mddev->ro = 2;
- set_disk_ro(mddev->gendisk, 0);
- }
+ /* transitioning to readauto need only happen for
+ * arrays that call md_write_start
+ */
+ if (mddev->pers) {
+ err = restart_array(mddev);
+ if (err == 0) {
+ mddev->ro = 2;
+ set_disk_ro(mddev->gendisk, 0);
}
- goto done_unlock;
+ }
+ goto done_unlock;
}
/*
}
}
- switch (cmd)
+ switch (cmd) {
+ case ADD_NEW_DISK:
{
- case ADD_NEW_DISK:
- {
- mdu_disk_info_t info;
- if (copy_from_user(&info, argp, sizeof(info)))
- err = -EFAULT;
- else
- err = add_new_disk(mddev, &info);
- goto done_unlock;
- }
+ mdu_disk_info_t info;
+ if (copy_from_user(&info, argp, sizeof(info)))
+ err = -EFAULT;
+ else
+ err = add_new_disk(mddev, &info);
+ goto done_unlock;
+ }
- case HOT_REMOVE_DISK:
- err = hot_remove_disk(mddev, new_decode_dev(arg));
- goto done_unlock;
+ case HOT_REMOVE_DISK:
+ err = hot_remove_disk(mddev, new_decode_dev(arg));
+ goto done_unlock;
- case HOT_ADD_DISK:
- err = hot_add_disk(mddev, new_decode_dev(arg));
- goto done_unlock;
+ case HOT_ADD_DISK:
+ err = hot_add_disk(mddev, new_decode_dev(arg));
+ goto done_unlock;
- case RUN_ARRAY:
- err = do_md_run(mddev);
- goto done_unlock;
+ case RUN_ARRAY:
+ err = do_md_run(mddev);
+ goto done_unlock;
- case SET_BITMAP_FILE:
- err = set_bitmap_file(mddev, (int)arg);
- goto done_unlock;
+ case SET_BITMAP_FILE:
+ err = set_bitmap_file(mddev, (int)arg);
+ goto done_unlock;
- default:
- err = -EINVAL;
- goto abort_unlock;
+ default:
+ err = -EINVAL;
+ goto abort_unlock;
}
done_unlock:
#define SYNC_MARKS 10
#define SYNC_MARK_STEP (3*HZ)
+#define UPDATE_FREQUENCY (5*60*HZ)
void md_do_sync(struct md_thread *thread)
{
struct mddev *mddev = thread->mddev;
window;
sector_t max_sectors,j, io_sectors;
unsigned long mark[SYNC_MARKS];
+ unsigned long update_time;
sector_t mark_cnt[SYNC_MARKS];
int last_mark,m;
struct list_head *tmp;
mddev->curr_resync_completed = j;
sysfs_notify(&mddev->kobj, NULL, "sync_completed");
md_new_event(mddev);
+ update_time = jiffies;
blk_start_plug(&plug);
while (j < max_sectors) {
((mddev->curr_resync > mddev->curr_resync_completed &&
(mddev->curr_resync - mddev->curr_resync_completed)
> (max_sectors >> 4)) ||
+ time_after_eq(jiffies, update_time + UPDATE_FREQUENCY) ||
(j - mddev->curr_resync_completed)*2
>= mddev->resync_max - mddev->curr_resync_completed
)) {
wait_event(mddev->recovery_wait,
atomic_read(&mddev->recovery_active) == 0);
mddev->curr_resync_completed = j;
+ if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) &&
+ j > mddev->recovery_cp)
+ mddev->recovery_cp = j;
+ update_time = jiffies;
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
sysfs_notify(&mddev->kobj, NULL, "sync_completed");
}
sector_t *first_bad, int *bad_sectors)
{
int hi;
- int lo = 0;
+ int lo;
u64 *p = bb->page;
- int rv = 0;
+ int rv;
sector_t target = s + sectors;
unsigned seq;
retry:
seq = read_seqbegin(&bb->lock);
-
+ lo = 0;
+ rv = 0;
hi = bb->count;
/* Binary search between lo and hi for 'target'
projects / mirror_ubuntu-jammy-kernel.git / blobdiff