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Message-ID: <20240124091421.1261579-11-yukuai3@huawei.com>
Date: Wed, 24 Jan 2024 17:14:20 +0800
From: Yu Kuai <yukuai3@...wei.com>
To: <agk@...hat.com>, <snitzer@...nel.org>, <mpatocka@...hat.com>,
<dm-devel@...ts.linux.dev>, <xni@...hat.com>, <song@...nel.org>,
<yukuai3@...wei.com>, <jbrassow@....redhat.com>, <neilb@...e.de>,
<heinzm@...hat.com>, <shli@...com>, <akpm@...l.org>
CC: <linux-kernel@...r.kernel.org>, <linux-raid@...r.kernel.org>,
<yukuai1@...weicloud.com>, <yi.zhang@...wei.com>, <yangerkun@...wei.com>
Subject: [PATCH v2 10/11] md: export helper md_is_rdwr()
There are no functional changes for now, prepare to fix a deadlock for
dm-raid456.
Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
drivers/md/md.c | 12 ------------
drivers/md/md.h | 12 ++++++++++++
2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 90cf31b53804..c803a805ea0d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -99,18 +99,6 @@ static void mddev_detach(struct mddev *mddev);
static void export_rdev(struct md_rdev *rdev, struct mddev *mddev);
static void md_wakeup_thread_directly(struct md_thread __rcu *thread);
-enum md_ro_state {
- MD_RDWR,
- MD_RDONLY,
- MD_AUTO_READ,
- MD_MAX_STATE
-};
-
-static bool md_is_rdwr(struct mddev *mddev)
-{
- return (mddev->ro == MD_RDWR);
-}
-
/*
* Default number of read corrections we'll attempt on an rdev
* before ejecting it from the array. We divide the read error
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 29b476ff3b9f..98da86d38ba8 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -558,6 +558,18 @@ enum recovery_flags {
MD_RESYNCING_REMOTE, /* remote node is running resync thread */
};
+enum md_ro_state {
+ MD_RDWR,
+ MD_RDONLY,
+ MD_AUTO_READ,
+ MD_MAX_STATE
+};
+
+static bool md_is_rdwr(struct mddev *mddev)
+{
+ return (mddev->ro == MD_RDWR);
+}
+
static inline int __must_check mddev_lock(struct mddev *mddev)
{
return mutex_lock_interruptible(&mddev->reconfig_mutex);
--
2.39.2
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