Patch "block: renumber QUEUE_FLAG_HW_WC" has been added to the 6.1-stable tree

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

    block: renumber QUEUE_FLAG_HW_WC

to the 6.1-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:
     block-renumber-queue_flag_hw_wc.patch
and it can be found in the queue-6.1 subdirectory.

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



commit 41a9ccbc475d613f073f31681da464dfdaf616eb
Author: Christoph Hellwig <hch@xxxxxx>
Date:   Tue Dec 26 08:15:24 2023 +0000

    block: renumber QUEUE_FLAG_HW_WC
    
    [ Upstream commit 02d374f3418df577c850f0cd45c3da9245ead547 ]
    
    For the QUEUE_FLAG_HW_WC to actually work, it needs to have a separate
    number from QUEUE_FLAG_FUA, doh.
    
    Fixes: 43c9835b144c ("block: don't allow enabling a cache on devices that don't support it")
    Signed-off-by: Christoph Hellwig <hch@xxxxxx>
    Link: https://lore.kernel.org/r/20231226081524.180289-1-hch@xxxxxx
    Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 57674b3c58774..07a7eeef47d39 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -565,7 +565,7 @@ struct request_queue {
 #define QUEUE_FLAG_NOXMERGES	9	/* No extended merges */
 #define QUEUE_FLAG_ADD_RANDOM	10	/* Contributes to random pool */
 #define QUEUE_FLAG_SAME_FORCE	12	/* force complete on same CPU */
-#define QUEUE_FLAG_HW_WC	18	/* Write back caching supported */
+#define QUEUE_FLAG_HW_WC	13	/* Write back caching supported */
 #define QUEUE_FLAG_INIT_DONE	14	/* queue is initialized */
 #define QUEUE_FLAG_STABLE_WRITES 15	/* don't modify blks until WB is done */
 #define QUEUE_FLAG_POLL		16	/* IO polling enabled if set */




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