Patch "md: export helper md_is_rdwr()" has been added to the 6.7-stable tree

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This is a note to let you know that I've just added the patch titled

    md: export helper md_is_rdwr()

to the 6.7-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     md-export-helper-md_is_rdwr.patch
and it can be found in the queue-6.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4c42ca92361092ff81031dce190a574c76bbe5b3
Author: Yu Kuai <yukuai3@xxxxxxxxxx>
Date:   Tue Mar 5 15:23:00 2024 +0800

    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@xxxxxxxxxxxxxxx # v6.7+
    Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
    Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
    Acked-by: Mike Snitzer <snitzer@xxxxxxxxxx>
    Signed-off-by: Song Liu <song@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240305072306.2562024-4-yukuai1@xxxxxxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 740541f6cad98..bae513018849a 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 0d06d640aa06d..db0cb00e4c9ac 100644
--- 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);




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