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md: switch personalities to use md_submodule_head

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Remove the global list 'pers_list', and switch to use md_submodule_head,
which is managed by xarry. Prepare to unify registration and unregistration
for all sub modules.

Link: https://lore.kernel.org/linux-raid/20250215092225.2427977-5-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
This commit is contained in:
Yu Kuai
2025-02-15 17:22:22 +08:00
committed by Yu Kuai
parent d3beb7c9c6
commit 3d44e1d157
7 changed files with 130 additions and 106 deletions
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22
drivers/md/raid1.c
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@@ -3500,9 +3500,13 @@ static void *raid1_takeover(struct mddev *mddev)
static struct md_personality raid1_personality =
{
.name = "raid1",
.level = 1,
.owner = THIS_MODULE,
.head = {
.type = MD_PERSONALITY,
.id = ID_RAID1,
.name = "raid1",
.owner = THIS_MODULE,
},
.make_request = raid1_make_request,
.run = raid1_run,
.free = raid1_free,
@@ -3519,18 +3523,18 @@ static struct md_personality raid1_personality =
.takeover = raid1_takeover,
};
static int __init raid_init(void)
static int __init raid1_init(void)
{
return register_md_personality(&raid1_personality);
return register_md_submodule(&raid1_personality.head);
}
static void raid_exit(void)
static void __exit raid1_exit(void)
{
unregister_md_personality(&raid1_personality);
unregister_md_submodule(&raid1_personality.head);
}
module_init(raid_init);
module_exit(raid_exit);
module_init(raid1_init);
module_exit(raid1_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("RAID1 (mirroring) personality for MD");
MODULE_ALIAS("md-personality-3"); /* RAID1 */