diff options
| author | Guoqing Jiang <guoqing.jiang@cloud.ionos.com> | 2019-12-23 12:48:55 +0300 |
|---|---|---|
| committer | Song Liu <songliubraving@fb.com> | 2020-01-13 22:44:09 +0300 |
| commit | 11d3a9f65018c9fb3d4f2032aec76af2ba98431c (patch) | |
| tree | 5c3191697a4516a04e12ff095d9609ee159b184c /drivers/md/md.h | |
| parent | 3e173ab55b990d2b4ceb90bf55a88a96eb88598e (diff) | |
| download | linux-11d3a9f65018c9fb3d4f2032aec76af2ba98431c.tar.xz | |
md: prepare for enable raid1 io serialization
1. The related resources (spin_lock, list and waitqueue) are needed for
address raid1 reorder overlap issue too, in this case, rdev is set to
NULL for mddev_create/destroy_serial_pool which implies all rdevs need
to handle these resources.
And also add "is_suspend" to mddev_destroy_serial_pool since it will
be called under suspended situation, which also makes both create and
destroy pool have same arguments.
2. Introduce rdevs_init_serial which is called if raid1 io serialization
is enabled since all rdevs need to init related stuffs.
3. rdev_init_serial and clear_bit(CollisionCheck, &rdev->flags) should
be called between suspend and resume.
No need to export mddev_create_serial_pool since it is only called in
md-mod module.
Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 7b811645cec7..de04a8d3a67a 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -738,7 +738,7 @@ extern void md_reload_sb(struct mddev *mddev, int raid_disk); extern void md_update_sb(struct mddev *mddev, int force); extern void md_kick_rdev_from_array(struct md_rdev * rdev); extern void mddev_create_serial_pool(struct mddev *mddev, struct md_rdev *rdev, - bool is_suspend); + bool is_suspend); struct md_rdev *md_find_rdev_nr_rcu(struct mddev *mddev, int nr); struct md_rdev *md_find_rdev_rcu(struct mddev *mddev, dev_t dev); |