From: Yu Kuai <yukuai3@huawei.com>
Date: Tue, 5 Mar 2024 07:23:00 +0000 (+0800)
Subject: md: export helper md_is_rdwr()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=314e9af065513ff86ec9e32eaa96b9bd275cf51d;p=linux.git

md: export helper md_is_rdwr()

There are no functional changes for now, prepare to fix a deadlock for
dm-raid456.

Cc: stable@vger.kernel.org # v6.7+
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Xiao Ni <xni@redhat.com>
Acked-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240305072306.2562024-4-yukuai1@huaweicloud.com
---

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0bf2f7a53ed8d..55ecc05c17c65 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 dff2e333756d4..a40e898fe57e5 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -569,6 +569,18 @@ 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 inline 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);