This is a note to let you know that I've just added the patch titled
md-cluster: make md-cluster also can work when compiled into kernel
to the 4.4-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-cluster-make-md-cluster-also-can-work-when-compiled-into-kernel.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 47a7b0d8888c04c9746812820b6e60553cc77bbc Mon Sep 17 00:00:00 2001
From: Guoqing Jiang <gqjiang@xxxxxxxx>
Date: Sun, 4 Sep 2016 22:17:28 -0400
Subject: md-cluster: make md-cluster also can work when compiled into kernel
From: Guoqing Jiang <gqjiang@xxxxxxxx>
commit 47a7b0d8888c04c9746812820b6e60553cc77bbc upstream.
The md-cluster is compiled as module by default,
if it is compiled by built-in way, then we can't
make md-cluster works.
[64782.630008] md/raid1:md127: active with 2 out of 2 mirrors
[64782.630528] md-cluster module not found.
[64782.630530] md127: Could not setup cluster service (-2)
Fixes: edb39c9 ("Introduce md_cluster_operations to handle cluster functions")
Reported-by: Marc Smith <marc.smith@xxxxxxx>
Reviewed-by: NeilBrown <neilb@xxxxxxxx>
Signed-off-by: Guoqing Jiang <gqjiang@xxxxxxxx>
Signed-off-by: Shaohua Li <shli@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/md.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7572,16 +7572,12 @@ EXPORT_SYMBOL(unregister_md_cluster_oper
int md_setup_cluster(struct mddev *mddev, int nodes)
{
- int err;
-
- err = request_module("md-cluster");
- if (err) {
- pr_err("md-cluster module not found.\n");
- return -ENOENT;
- }
-
+ if (!md_cluster_ops)
+ request_module("md-cluster");
spin_lock(&pers_lock);
+ /* ensure module won't be unloaded */
if (!md_cluster_ops || !try_module_get(md_cluster_mod)) {
+ pr_err("can't find md-cluster module or get it's reference.\n");
spin_unlock(&pers_lock);
return -ENOENT;
}
Patches currently in stable-queue which might be from gqjiang@xxxxxxxx are
queue-4.4/md-cluster-make-md-cluster-also-can-work-when-compiled-into-kernel.patch
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