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md/raid5-cache: use new apis to suspend array

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Convert to use new apis, the old apis will be removed eventually.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20231010151958.145896-9-yukuai1@huaweicloud.com
This commit is contained in:
Yu Kuai 2023-10-10 23:19:47 +08:00 committed by Song Liu
parent 3cddf86a57
commit 1b172e0b11
1 changed files with 8 additions and 11 deletions
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19
drivers/md/raid5-cache.c
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@ -686,7 +686,6 @@ static void r5c_disable_writeback_async(struct work_struct *work)
disable_writeback_work);
struct mddev *mddev = log->rdev->mddev;
struct r5conf *conf = mddev->private;
int locked = 0;
if (log->r5c_journal_mode == R5C_JOURNAL_MODE_WRITE_THROUGH)
return;
@ -696,13 +695,13 @@ static void r5c_disable_writeback_async(struct work_struct *work)
/* wait superblock change before suspend */
wait_event(mddev->sb_wait,
!READ_ONCE(conf->log) ||
(!test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) &&
(locked = mddev_trylock(mddev))));
if (locked) {
mddev_suspend(mddev);
!test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags));
log = READ_ONCE(conf->log);
if (log) {
__mddev_suspend(mddev, false);
log->r5c_journal_mode = R5C_JOURNAL_MODE_WRITE_THROUGH;
mddev_resume(mddev);
mddev_unlock(mddev);
__mddev_resume(mddev);
}
}
@ -2586,9 +2585,7 @@ int r5c_journal_mode_set(struct mddev *mddev, int mode)
mode == R5C_JOURNAL_MODE_WRITE_BACK)
return -EINVAL;
mddev_suspend(mddev);
conf->log->r5c_journal_mode = mode;
mddev_resume(mddev);
pr_debug("md/raid:%s: setting r5c cache mode to %d: %s\n",
mdname(mddev), mode, r5c_journal_mode_str[mode]);
@ -2613,11 +2610,11 @@ static ssize_t r5c_journal_mode_store(struct mddev *mddev,
if (strlen(r5c_journal_mode_str[mode]) == len &&
!strncmp(page, r5c_journal_mode_str[mode], len))
break;
ret = mddev_lock(mddev);
ret = mddev_suspend_and_lock(mddev);
if (ret)
return ret;
ret = r5c_journal_mode_set(mddev, mode);
mddev_unlock(mddev);
mddev_unlock_and_resume(mddev);
return ret ?: length;
}