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@xxxxxxxxxxxxxxx> know about it.
>From e573427a440fd67d3f522357d7ac901d59281948 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@xxxxxxxxx>
Date: Tue, 16 Jan 2018 15:41:54 +0100
Subject: rbd: whitelist RBD_FEATURE_OPERATIONS feature bit
From: Ilya Dryomov <idryomov@xxxxxxxxx>
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@xxxxxxxxxxxxxxx
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
Reviewed-by: Jason Dillaman <dillaman@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxx are
queue-4.15/rbd-whitelist-rbd_feature_operations-feature-bit.patch