File 0019-compat-block-remove-the-unused-mode-argument-to-rele.patch of Package drbd.38593

From bf287c15359c4495a706ca270e7dcab4c2d6ebcc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Moritz=20=22WanzenBug=22=20Wanzenb=C3=B6ck?=
 <moritz.wanzenboeck@linbit.com>
Date: Tue, 12 Sep 2023 15:27:01 +0200
Subject: [PATCH 19/20] compat: block: remove the unused mode argument to
 ->release

See also upstream Linux kernel commit
ae220766d87c ("block: remove the unused mode argument to ->release")

Original message:

The mode argument to the ->release block_device_operation is never used,
so remove it.
---
 ...ions_release__no_takes_single_argument.cocci | 17 +++++++++++++++++
 drbd/drbd-kernel-compat/gen_patch_names.c       |  3 +++
 ...e_operations_release_takes_single_argument.c |  7 +++++++
 drbd/drbd_main.c                                |  6 +++---
 4 files changed, 30 insertions(+), 3 deletions(-)
 create mode 100644 drbd/drbd-kernel-compat/cocci/block_device_operations_release__no_takes_single_argument.cocci
 create mode 100644 drbd/drbd-kernel-compat/tests/block_device_operations_release_takes_single_argument.c

diff --git a/drbd/drbd-kernel-compat/cocci/block_device_operations_release__no_takes_single_argument.cocci b/drbd/drbd-kernel-compat/cocci/block_device_operations_release__no_takes_single_argument.cocci
new file mode 100644
index 000000000000..b0a0ee9eef39
--- /dev/null
+++ b/drbd/drbd-kernel-compat/cocci/block_device_operations_release__no_takes_single_argument.cocci
@@ -0,0 +1,17 @@
+@@
+identifier gd;
+fresh identifier mode = "" ## "mode";
+@@
+  drbd_release(
+  	struct gendisk *gd
++ 	, fmode_t mode
+  ) { ... }
+
+@@
+symbol drbd_release;
+expression gd;
+@@
+  drbd_release(
+  	gd
++ 	, 0
+  )
diff --git a/drbd/drbd-kernel-compat/gen_patch_names.c b/drbd/drbd-kernel-compat/gen_patch_names.c
index 4761c1ef7d0c..608be8b4f099 100644
--- a/drbd/drbd-kernel-compat/gen_patch_names.c
+++ b/drbd/drbd-kernel-compat/gen_patch_names.c
@@ -565,6 +565,9 @@ int main(int argc, char **argv)
 	patch(1, "blkdev_put", true, false,
 	      COMPAT_BLKDEV_PUT_HAS_HOLDER, "has_holder");
 
+	patch(1, "block_device_operations_release", true, false,
+	      COMPAT_BLOCK_DEVICE_OPERATIONS_RELEASE_TAKES_SINGLE_ARGUMENT, "takes_single_argument");
+
 /* #define BLKDEV_ISSUE_ZEROOUT_EXPORTED */
 /* #define BLKDEV_ZERO_NOUNMAP */
 
diff --git a/drbd/drbd-kernel-compat/tests/block_device_operations_release_takes_single_argument.c b/drbd/drbd-kernel-compat/tests/block_device_operations_release_takes_single_argument.c
new file mode 100644
index 000000000000..d51c863e359a
--- /dev/null
+++ b/drbd/drbd-kernel-compat/tests/block_device_operations_release_takes_single_argument.c
@@ -0,0 +1,7 @@
+/* { "version": "v6.5-rc1", "commit": "ae220766d87cd6799dbf918fea10613ae14c0654", "comment": "block: remove the unused mode argument to ->release", "author": "Christoph Hellwig <hch@lst.de>", "date": "Thu Jun 8 13:02:37 2023 +0200" } */
+#include <linux/blkdev.h>
+
+void foo(struct block_device_operations *ops, struct gendisk *gd)
+{
+	ops->release(gd);
+}
diff --git a/drbd/drbd_main.c b/drbd/drbd_main.c
index bb05b2215dfb..1864861db21d 100644
--- a/drbd/drbd_main.c
+++ b/drbd/drbd_main.c
@@ -53,7 +53,7 @@
 #include "drbd_dax_pmem.h"
 
 static int drbd_open(struct gendisk *gd, fmode_t mode);
-static void drbd_release(struct gendisk *gd, fmode_t mode);
+static void drbd_release(struct gendisk *gd);
 static void md_sync_timer_fn(struct timer_list *t);
 static int w_bitmap_io(struct drbd_work *w, int unused);
 static int flush_send_buffer(struct drbd_connection *connection, enum drbd_stream drbd_stream);
@@ -2740,7 +2740,7 @@ out:
 
 	mutex_unlock(&resource->open_release);
 	if (err) {
-		drbd_release(gd, mode);
+		drbd_release(gd);
 		if (err == -EAGAIN && !(mode & FMODE_NDELAY))
 			err = -EMEDIUMTYPE;
 	}
@@ -2822,7 +2822,7 @@ void drbd_fsync_device(struct drbd_device *device)
 	drbd_flush_peer_acks(resource);
 }
 
-static void drbd_release(struct gendisk *gd, fmode_t mode)
+static void drbd_release(struct gendisk *gd)
 {
 	struct drbd_device *device = gd->private_data;
 	struct drbd_resource *resource = device->resource;
-- 
2.35.3