From: Yu Kuai yukuai3@huawei.com
mainline inclusion from mainline-v6.7-rc1 commit 54d21eb6ad5e57e70157590397ba01b9faed6b59 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8T02O
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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Now that mddev_suspend() doean't rely on 'mddev->pers' to be set, it's safe to remove such checking.
This will also allow the array to be suspended even before the array is ran.
Signed-off-by: Yu Kuai yukuai3@huawei.com Signed-off-by: Song Liu song@kernel.org Link: https://lore.kernel.org/r/20230825030956.1527023-8-yukuai1@huaweicloud.com Signed-off-by: Li Nan linan122@huawei.com --- drivers/md/md.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c index 209d8a1cf888..7c46d83af3cd 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5182,18 +5182,13 @@ suspend_lo_store(struct mddev *mddev, const char *buf, size_t len) err = mddev_lock(mddev); if (err) return err; - err = -EINVAL; - if (mddev->pers == NULL || - mddev->pers->quiesce == NULL) - goto unlock; + mddev_suspend(mddev); mddev->suspend_lo = new; mddev_resume(mddev);
- err = 0; -unlock: mddev_unlock(mddev); - return err ?: len; + return len; } static struct md_sysfs_entry md_suspend_lo = __ATTR(suspend_lo, S_IRUGO|S_IWUSR, suspend_lo_show, suspend_lo_store);