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Merge tag 'md/4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md

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Pull MD fixes from Shaohua Li:

 - raid5-ppl fix by Artur. This one is introduced in this release cycle.

 - raid5 reshape fix by Xiao. This is an old bug and will be added to
   stable.

 - bitmap fix by Guoqing.

* tag 'md/4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
  raid5-ppl: use BIOSET_NEED_BVECS when creating bioset
  Raid5 should update rdev->sectors after reshape
  md/bitmap: don't read page from device with Bitmap_sync
This commit is contained in:
Linus Torvalds 2017-07-18 11:51:08 -07:00
commit 74cbd96bc2
4 changed files with 7 additions and 6 deletions
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3
drivers/md/bitmap.c
View file

@ -156,7 +156,8 @@ static int read_sb_page(struct mddev *mddev, loff_t offset,
rdev_for_each(rdev, mddev) {
if (! test_bit(In_sync, &rdev->flags)
|| test_bit(Faulty, &rdev->flags))
|| test_bit(Faulty, &rdev->flags)
|| test_bit(Bitmap_sync, &rdev->flags))
continue;
target = offset + index * (PAGE_SIZE/512);

4
drivers/md/md.h
View file

@ -134,7 +134,9 @@ enum flag_bits {
Faulty, /* device is known to have a fault */
In_sync, /* device is in_sync with rest of array */
Bitmap_sync, /* ..actually, not quite In_sync. Need a
* bitmap-based recovery to get fully in sync
* bitmap-based recovery to get fully in sync.
* The bit is only meaningful before device
* has been passed to pers->hot_add_disk.
*/
WriteMostly, /* Avoid reading if at all possible */
AutoDetected, /* added by auto-detect */

2
drivers/md/raid5-ppl.c
View file

@ -1150,7 +1150,7 @@ int ppl_init_log(struct r5conf *conf)
goto err;
}
ppl_conf->bs = bioset_create(conf->raid_disks, 0, 0);
ppl_conf->bs = bioset_create(conf->raid_disks, 0, BIOSET_NEED_BVECS);
if (!ppl_conf->bs) {
ret = -ENOMEM;
goto err;

4
drivers/md/raid5.c
View file

@ -7951,12 +7951,10 @@ static void end_reshape(struct r5conf *conf)
{
if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
struct md_rdev *rdev;
spin_lock_irq(&conf->device_lock);
conf->previous_raid_disks = conf->raid_disks;
rdev_for_each(rdev, conf->mddev)
rdev->data_offset = rdev->new_data_offset;
md_finish_reshape(conf->mddev);
smp_wmb();
conf->reshape_progress = MaxSector;
conf->mddev->reshape_position = MaxSector;