md: export helper md_is_rdwr()

[ Upstream commit 314e9af065513ff86ec9e32eaa96b9bd275cf51d ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 740541f6cad9825b908a06308f38b5f1c9abc471..bae513018849a4f3fef560e2d939643f87422006 100644 (file)
--- 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 0d06d640aa06dcf80072dd0adaa33a61cc4c376c..db0cb00e4c9ac607fe55672f8ae7c6f54c8c2b2e 100644 (file)
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -559,6 +559,18 @@ 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);