Patch "rbd: whitelist RBD_FEATURE_OPERATIONS feature bit" has been added to the 4.15-stable tree

Patch "rbd: whitelist RBD_FEATURE_OPERATIONS feature bit" has been added to the 4.15-stable tree

[gregkh]

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

    rbd: whitelist RBD_FEATURE_OPERATIONS feature bit

to the 4.15-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:
     rbd-whitelist-rbd_feature_operations-feature-bit.patch
and it can be found in the queue-4.15 subdirectory.

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


>From e573427a440fd67d3f522357d7ac901d59281948 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Tue, 16 Jan 2018 15:41:54 +0100
Subject: rbd: whitelist RBD_FEATURE_OPERATIONS feature bit

From: Ilya Dryomov <idryomov@gmail.com>

commit e573427a440fd67d3f522357d7ac901d59281948 upstream.

This feature bit restricts older clients from performing certain
maintenance operations against an image (e.g. clone, snap create).
krbd does not perform maintenance operations.

Cc: stable@vger.kernel.org
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/block/rbd.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -124,11 +124,13 @@ static int atomic_dec_return_safe(atomic
 #define RBD_FEATURE_STRIPINGV2		(1ULL<<1)
 #define RBD_FEATURE_EXCLUSIVE_LOCK	(1ULL<<2)
 #define RBD_FEATURE_DATA_POOL		(1ULL<<7)
+#define RBD_FEATURE_OPERATIONS		(1ULL<<8)
 
 #define RBD_FEATURES_ALL	(RBD_FEATURE_LAYERING |		\
 				 RBD_FEATURE_STRIPINGV2 |	\
 				 RBD_FEATURE_EXCLUSIVE_LOCK |	\
-				 RBD_FEATURE_DATA_POOL)
+				 RBD_FEATURE_DATA_POOL |	\
+				 RBD_FEATURE_OPERATIONS)
 
 /* Features supported by this (client software) implementation. */
 


Patches currently in stable-queue which might be from idryomov@gmail.com are

queue-4.15/rbd-whitelist-rbd_feature_operations-feature-bit.patch