This is a note to let you know that I've just added the patch titled
btrfs: zoned: fix missing endianness conversion in sb_write_pointer
to the 6.0-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:
btrfs-zoned-fix-missing-endianness-conversion-in-sb_write_pointer.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c51f0e6a1254b3ac2d308e1c6fd8fb936992b455 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 15 Nov 2022 10:39:44 +0100
Subject: btrfs: zoned: fix missing endianness conversion in sb_write_pointer
From: Christoph Hellwig <hch@xxxxxx>
commit c51f0e6a1254b3ac2d308e1c6fd8fb936992b455 upstream.
generation is an on-disk __le64 value, so use btrfs_super_generation to
convert it to host endian before comparing it.
Fixes: 12659251ca5d ("btrfs: implement log-structured superblock for ZONED mode")
CC: stable@xxxxxxxxxxxxxxx # 5.15+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/zoned.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -134,7 +134,8 @@ static int sb_write_pointer(struct block
super[i] = page_address(page[i]);
}
- if (super[0]->generation > super[1]->generation)
+ if (btrfs_super_generation(super[0]) >
+ btrfs_super_generation(super[1]))
sector = zones[1].start;
else
sector = zones[0].start;
Patches currently in stable-queue which might be from hch@xxxxxx are
queue-6.0/btrfs-zoned-fix-missing-endianness-conversion-in-sb_write_pointer.patch
queue-6.0/blk-mq-fix-queue-reference-leak-on-blk_mq_alloc_disk.patch
queue-6.0/nvme-quiet-user-passthrough-command-errors.patch
queue-6.0/btrfs-use-kvcalloc-in-btrfs_get_dev_zone_info.patch
queue-6.0/block-make-blk_set_default_limits-private.patch
queue-6.0/nvmet-fix-memory-leak-in-nvmet_subsys_attr_model_sto.patch
