[to-be-updated] modules-wait-do_free_init-correctly.patch removed from -mm tree

[to-be-updated] modules-wait-do_free_init-correctly.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: modules: wait do_free_init correctly
has been removed from the -mm tree.  Its filename was
     modules-wait-do_free_init-correctly.patch

This patch was dropped because an updated version will be merged

------------------------------------------------------
From: Changbin Du <changbin.du@huawei.com>
Subject: modules: wait do_free_init correctly
Date: Tue, 19 Dec 2023 22:12:31 +0800

Commit 1a7b7d922081 ("modules: Use vmalloc special flag") moves
do_free_init() into a global workqueue instead of call_rcu().  So now we
should wait it via flush_work().

[changbin.du@huawei.com: fix compilation issue for no CONFIG_MODULES found by 0-DAY]
  Link: https://lkml.kernel.org/r/20231225061513.2984575-1-changbin.du@huawei.com
Link: https://lkml.kernel.org/r/20231219141231.2218215-1-changbin.du@huawei.com
Fixes: 1a7b7d922081 ("modules: Use vmalloc special flag")
Signed-off-by: Changbin Du <changbin.du@huawei.com>
Cc: Xiaoyi Su <suxiaoyi@huawei.com>
Cc: Hui Wang <hw.huiwang@huawei.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/moduleloader.h |    8 ++++++++
 init/main.c                  |    5 +++--
 kernel/module/main.c         |    5 +++++
 3 files changed, 16 insertions(+), 2 deletions(-)

--- a/include/linux/moduleloader.h~modules-wait-do_free_init-correctly
+++ a/include/linux/moduleloader.h
@@ -115,6 +115,14 @@ int module_finalize(const Elf_Ehdr *hdr,
 		    const Elf_Shdr *sechdrs,
 		    struct module *mod);
 
+#ifdef CONFIG_MODULES
+void flush_module_init_free_work(void);
+#else
+static inline void flush_module_init_free_work(void)
+{
+}
+#endif
+
 /* Any cleanup needed when module leaves. */
 void module_arch_cleanup(struct module *mod);
 
--- a/init/main.c~modules-wait-do_free_init-correctly
+++ a/init/main.c
@@ -99,6 +99,7 @@
 #include <linux/init_syscalls.h>
 #include <linux/stackdepot.h>
 #include <linux/randomize_kstack.h>
+#include <linux/moduleloader.h>
 #include <net/net_namespace.h>
 
 #include <asm/io.h>
@@ -1402,11 +1403,11 @@ static void mark_readonly(void)
 	if (rodata_enabled) {
 		/*
 		 * load_module() results in W+X mappings, which are cleaned
-		 * up with call_rcu().  Let's make sure that queued work is
+		 * up with init_free_wq. Let's make sure that queued work is
 		 * flushed so that we don't hit false positives looking for
 		 * insecure pages which are W+X.
 		 */
-		rcu_barrier();
+		flush_module_init_free_work();
 		mark_rodata_ro();
 		rodata_test();
 	} else
--- a/kernel/module/main.c~modules-wait-do_free_init-correctly
+++ a/kernel/module/main.c
@@ -2489,6 +2489,11 @@ static void do_free_init(struct work_str
 	}
 }
 
+void flush_module_init_free_work(void)
+{
+	flush_work(&init_free_wq);
+}
+
 #undef MODULE_PARAM_PREFIX
 #define MODULE_PARAM_PREFIX "module."
 /* Default value for module->async_probe_requested */
_

Patches currently in -mm which might be from changbin.du@huawei.com are