FAILED: patch "[PATCH] btrfs: fix range_end calculation in extent_write_locked_range" failed to apply to 6.1-stable tree

FAILED: patch "[PATCH] btrfs: fix range_end calculation in extent_write_locked_range" failed to apply to 6.1-stable tree

[gregkh]

The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 36614a3beba33a05ad78d4dcb9aa1d00e8a7d01
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023071602-swinger-darn-2b82@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 36614a3beba33a05ad78d4dcb9aa1d00e8a7d01f Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 31 May 2023 08:04:50 +0200
Subject: [PATCH] btrfs: fix range_end calculation in extent_write_locked_range

The range_end field in struct writeback_control is inclusive, just like
the end parameter passed to extent_write_locked_range.  Not doing this
could cause extra writeout, which is harmless but suboptimal.

Fixes: 771ed689d2cd ("Btrfs: Optimize compressed writeback and reads")
CC: stable@vger.kernel.org # 5.9+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d5b3b15f7ab2..0726c82db309 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2310,7 +2310,7 @@ int extent_write_locked_range(struct inode *inode, u64 start, u64 end)
 	struct writeback_control wbc_writepages = {
 		.sync_mode	= WB_SYNC_ALL,
 		.range_start	= start,
-		.range_end	= end + 1,
+		.range_end	= end,
 		.no_cgroup_owner = 1,
 	};
 	struct btrfs_bio_ctrl bio_ctrl = {