diff mbox series

[4/4] f2fs: Use module_{subinit, subeixt} helper macros

Message ID 20240723083239.41533-5-youling.tang@linux.dev
State New
Headers show
Series Add module_subinit{_noexit} and module_subeixt helper macros | expand

Commit Message

Youling Tang July 23, 2024, 8:32 a.m. UTC 
From: Youling Tang <tangyouling@kylinos.cn>

Use module_{subinit, subinit} to ensure that modules init and exit
are in sequence and to simplify the code.

Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
---
 fs/f2fs/debug.c |   3 +-
 fs/f2fs/f2fs.h  |   4 +-
 fs/f2fs/super.c | 139 +++++++++++-------------------------------------
 3 files changed, 36 insertions(+), 110 deletions(-)

Comments

kernel test robot July 23, 2024, 6:51 p.m. UTC | #1 
Hi Youling,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kdave/for-next]
[also build test WARNING on linus/master next-20240723]
[cannot apply to jaegeuk-f2fs/dev-test jaegeuk-f2fs/dev soc/for-next v6.10]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Youling-Tang/module-Add-module_subinit-_noexit-and-module_subeixt-helper-macros/20240723-164434
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
patch link:    https://lore.kernel.org/r/20240723083239.41533-5-youling.tang%40linux.dev
patch subject: [PATCH 4/4] f2fs: Use module_{subinit, subeixt} helper macros
config: i386-buildonly-randconfig-004-20240724 (https://download.01.org/0day-ci/archive/20240724/202407240204.KcPiCniO-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240204.KcPiCniO-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407240204.KcPiCniO-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from fs/f2fs/node.c:16:
>> fs/f2fs/f2fs.h:4131:57: warning: non-void function does not return a value [-Wreturn-type]
    4131 | static inline int __init f2fs_create_root_stats(void) { }
         |                                                         ^
   1 warning generated.
--
   In file included from fs/f2fs/data.c:25:
>> fs/f2fs/f2fs.h:4131:57: warning: non-void function does not return a value [-Wreturn-type]
    4131 | static inline int __init f2fs_create_root_stats(void) { }
         |                                                         ^
   fs/f2fs/data.c:2373:10: warning: variable 'index' set but not used [-Wunused-but-set-variable]
    2373 |         pgoff_t index;
         |                 ^
   2 warnings generated.


vim +4131 fs/f2fs/f2fs.h

  4128	
  4129	static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
  4130	static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
> 4131	static inline int __init f2fs_create_root_stats(void) { }
  4132	static inline void f2fs_destroy_root_stats(void) { }
  4133	static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
  4134	#endif
  4135
kernel test robot July 23, 2024, 9:31 p.m. UTC | #2 
Hi Youling,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kdave/for-next]
[also build test WARNING on linus/master next-20240723]
[cannot apply to jaegeuk-f2fs/dev-test jaegeuk-f2fs/dev soc/for-next v6.10]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Youling-Tang/module-Add-module_subinit-_noexit-and-module_subeixt-helper-macros/20240723-164434
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
patch link:    https://lore.kernel.org/r/20240723083239.41533-5-youling.tang%40linux.dev
patch subject: [PATCH 4/4] f2fs: Use module_{subinit, subeixt} helper macros
config: arm64-randconfig-002-20240724 (https://download.01.org/0day-ci/archive/20240724/202407240502.xqotqBQ1-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240502.xqotqBQ1-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407240502.xqotqBQ1-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from fs/f2fs/dir.c:13:
   fs/f2fs/f2fs.h: In function 'f2fs_create_root_stats':
>> fs/f2fs/f2fs.h:4131:1: warning: no return statement in function returning non-void [-Wreturn-type]
    4131 | static inline int __init f2fs_create_root_stats(void) { }
         | ^~~~~~
--
   In file included from fs/f2fs/data.c:25:
   fs/f2fs/f2fs.h: In function 'f2fs_create_root_stats':
>> fs/f2fs/f2fs.h:4131:1: warning: no return statement in function returning non-void [-Wreturn-type]
    4131 | static inline int __init f2fs_create_root_stats(void) { }
         | ^~~~~~
   fs/f2fs/data.c: In function 'f2fs_mpage_readpages':
   fs/f2fs/data.c:2373:17: warning: variable 'index' set but not used [-Wunused-but-set-variable]
    2373 |         pgoff_t index;
         |                 ^~~~~
--
   aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/ext4/super.o' being placed in section `.subexitcall.exit'
   aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/ext4/super.o' being placed in section `.subinitcall.init'
>> aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/f2fs/super.o' being placed in section `.subexitcall.exit'
>> aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/f2fs/super.o' being placed in section `.subinitcall.init'
   aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/ext4/super.o' being placed in section `.subexitcall.exit'
   aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/ext4/super.o' being placed in section `.subinitcall.init'
>> aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/f2fs/super.o' being placed in section `.subexitcall.exit'
>> aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/f2fs/super.o' being placed in section `.subinitcall.init'
   aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/ext4/super.o' being placed in section `.subexitcall.exit'
   aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/ext4/super.o' being placed in section `.subinitcall.init'
>> aarch64-linux-ld: warning: orphan section `.subexitcall.exit' from `fs/f2fs/super.o' being placed in section `.subexitcall.exit'
>> aarch64-linux-ld: warning: orphan section `.subinitcall.init' from `fs/f2fs/super.o' being placed in section `.subinitcall.init'


vim +4131 fs/f2fs/f2fs.h

  4128	
  4129	static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
  4130	static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
> 4131	static inline int __init f2fs_create_root_stats(void) { }
  4132	static inline void f2fs_destroy_root_stats(void) { }
  4133	static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
  4134	#endif
  4135
Youling Tang July 24, 2024, 2:14 a.m. UTC | #3 
On 24/07/2024 02:51, kernel test robot wrote:
> Hi Youling,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on kdave/for-next]
> [also build test WARNING on linus/master next-20240723]
> [cannot apply to jaegeuk-f2fs/dev-test jaegeuk-f2fs/dev soc/for-next v6.10]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Youling-Tang/module-Add-module_subinit-_noexit-and-module_subeixt-helper-macros/20240723-164434
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
> patch link:    https://lore.kernel.org/r/20240723083239.41533-5-youling.tang%40linux.dev
> patch subject: [PATCH 4/4] f2fs: Use module_{subinit, subeixt} helper macros
> config: i386-buildonly-randconfig-004-20240724 (https://download.01.org/0day-ci/archive/20240724/202407240204.KcPiCniO-lkp@intel.com/config)
> compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240204.KcPiCniO-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202407240204.KcPiCniO-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
>     In file included from fs/f2fs/node.c:16:
>>> fs/f2fs/f2fs.h:4131:57: warning: non-void function does not return a value [-Wreturn-type]
>      4131 | static inline int __init f2fs_create_root_stats(void) { }

I'll fix it later.
static inline int __init f2fs_create_root_stats(void) { return 0; }
>           |                                                         ^
>     1 warning generated.
> --
>     In file included from fs/f2fs/data.c:25:
>>> fs/f2fs/f2fs.h:4131:57: warning: non-void function does not return a value [-Wreturn-type]
>      4131 | static inline int __init f2fs_create_root_stats(void) { }
>           |                                                         ^
>     fs/f2fs/data.c:2373:10: warning: variable 'index' set but not used [-Wunused-but-set-variable]
>      2373 |         pgoff_t index;
>           |                 ^
>     2 warnings generated.
index = folio_index(folio);
This statement should be moved to CONFIG_F2FS_FS_COMPRESSION.

I'll send a separate patch to fix it if it needs to be modified.
diff mbox series

Patch

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 8b0e1e71b667..c08ecf807066 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -727,7 +727,7 @@  void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
 	kfree(si);
 }
 
-void __init f2fs_create_root_stats(void)
+int __init f2fs_create_root_stats(void)
 {
 #ifdef CONFIG_DEBUG_FS
 	f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
@@ -735,6 +735,7 @@  void __init f2fs_create_root_stats(void)
 	debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
 			    &stat_fops);
 #endif
+	return 0;
 }
 
 void f2fs_destroy_root_stats(void)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 8a9d910aa552..b2909383bcd9 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4100,7 +4100,7 @@  static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
 
 int f2fs_build_stats(struct f2fs_sb_info *sbi);
 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
-void __init f2fs_create_root_stats(void);
+int __init f2fs_create_root_stats(void);
 void f2fs_destroy_root_stats(void);
 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
 #else
@@ -4142,7 +4142,7 @@  void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
 
 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
-static inline void __init f2fs_create_root_stats(void) { }
+static inline int __init f2fs_create_root_stats(void) { }
 static inline void f2fs_destroy_root_stats(void) { }
 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
 #endif
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index df4cf31f93df..162ec1005b22 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -4940,120 +4940,45 @@  static void destroy_inodecache(void)
 	kmem_cache_destroy(f2fs_inode_cachep);
 }
 
-static int __init init_f2fs_fs(void)
+static int register_f2fs(void)
 {
-	int err;
+	return register_filesystem(&f2fs_fs_type);
+}
 
-	err = init_inodecache();
-	if (err)
-		goto fail;
-	err = f2fs_create_node_manager_caches();
-	if (err)
-		goto free_inodecache;
-	err = f2fs_create_segment_manager_caches();
-	if (err)
-		goto free_node_manager_caches;
-	err = f2fs_create_checkpoint_caches();
-	if (err)
-		goto free_segment_manager_caches;
-	err = f2fs_create_recovery_cache();
-	if (err)
-		goto free_checkpoint_caches;
-	err = f2fs_create_extent_cache();
-	if (err)
-		goto free_recovery_cache;
-	err = f2fs_create_garbage_collection_cache();
-	if (err)
-		goto free_extent_cache;
-	err = f2fs_init_sysfs();
-	if (err)
-		goto free_garbage_collection_cache;
-	err = f2fs_init_shrinker();
-	if (err)
-		goto free_sysfs;
-	err = register_filesystem(&f2fs_fs_type);
-	if (err)
-		goto free_shrinker;
-	f2fs_create_root_stats();
-	err = f2fs_init_post_read_processing();
-	if (err)
-		goto free_root_stats;
-	err = f2fs_init_iostat_processing();
-	if (err)
-		goto free_post_read;
-	err = f2fs_init_bio_entry_cache();
-	if (err)
-		goto free_iostat;
-	err = f2fs_init_bioset();
-	if (err)
-		goto free_bio_entry_cache;
-	err = f2fs_init_compress_mempool();
-	if (err)
-		goto free_bioset;
-	err = f2fs_init_compress_cache();
-	if (err)
-		goto free_compress_mempool;
-	err = f2fs_create_casefold_cache();
-	if (err)
-		goto free_compress_cache;
-	return 0;
-free_compress_cache:
-	f2fs_destroy_compress_cache();
-free_compress_mempool:
-	f2fs_destroy_compress_mempool();
-free_bioset:
-	f2fs_destroy_bioset();
-free_bio_entry_cache:
-	f2fs_destroy_bio_entry_cache();
-free_iostat:
-	f2fs_destroy_iostat_processing();
-free_post_read:
-	f2fs_destroy_post_read_processing();
-free_root_stats:
-	f2fs_destroy_root_stats();
+static void unregister_f2fs(void)
+{
 	unregister_filesystem(&f2fs_fs_type);
-free_shrinker:
-	f2fs_exit_shrinker();
-free_sysfs:
-	f2fs_exit_sysfs();
-free_garbage_collection_cache:
-	f2fs_destroy_garbage_collection_cache();
-free_extent_cache:
-	f2fs_destroy_extent_cache();
-free_recovery_cache:
-	f2fs_destroy_recovery_cache();
-free_checkpoint_caches:
-	f2fs_destroy_checkpoint_caches();
-free_segment_manager_caches:
-	f2fs_destroy_segment_manager_caches();
-free_node_manager_caches:
-	f2fs_destroy_node_manager_caches();
-free_inodecache:
-	destroy_inodecache();
-fail:
-	return err;
 }
 
+static struct subexitcall_rollback rollback;
+
 static void __exit exit_f2fs_fs(void)
 {
-	f2fs_destroy_casefold_cache();
-	f2fs_destroy_compress_cache();
-	f2fs_destroy_compress_mempool();
-	f2fs_destroy_bioset();
-	f2fs_destroy_bio_entry_cache();
-	f2fs_destroy_iostat_processing();
-	f2fs_destroy_post_read_processing();
-	f2fs_destroy_root_stats();
-	unregister_filesystem(&f2fs_fs_type);
-	f2fs_exit_shrinker();
-	f2fs_exit_sysfs();
-	f2fs_destroy_garbage_collection_cache();
-	f2fs_destroy_extent_cache();
-	f2fs_destroy_recovery_cache();
-	f2fs_destroy_checkpoint_caches();
-	f2fs_destroy_segment_manager_caches();
-	f2fs_destroy_node_manager_caches();
-	destroy_inodecache();
+	module_subexit(&rollback);
+}
+
+static int __init init_f2fs_fs(void)
+{
+	module_subinit(init_inodecache, destroy_inodecache, &rollback);
+	module_subinit(f2fs_create_node_manager_caches, f2fs_destroy_node_manager_caches, &rollback);
+	module_subinit(f2fs_create_segment_manager_caches, f2fs_destroy_segment_manager_caches, &rollback);
+	module_subinit(f2fs_create_checkpoint_caches, f2fs_destroy_checkpoint_caches, &rollback);
+	module_subinit(f2fs_create_recovery_cache, f2fs_destroy_recovery_cache, &rollback);
+	module_subinit(f2fs_create_extent_cache, f2fs_destroy_extent_cache, &rollback);
+	module_subinit(f2fs_create_garbage_collection_cache, f2fs_destroy_garbage_collection_cache, &rollback);
+	module_subinit(f2fs_init_sysfs, f2fs_exit_sysfs, &rollback);
+	module_subinit(f2fs_init_shrinker, f2fs_exit_shrinker, &rollback);
+	module_subinit(register_f2fs, unregister_f2fs, &rollback);
+	module_subinit(f2fs_create_root_stats, f2fs_destroy_root_stats, &rollback);
+	module_subinit(f2fs_init_post_read_processing, f2fs_destroy_post_read_processing, &rollback);
+	module_subinit(f2fs_init_iostat_processing, f2fs_destroy_iostat_processing, &rollback);
+	module_subinit(f2fs_init_bio_entry_cache, f2fs_destroy_bio_entry_cache, &rollback);
+	module_subinit(f2fs_init_bioset, f2fs_destroy_bioset, &rollback);
+	module_subinit(f2fs_init_compress_mempool, f2fs_destroy_compress_mempool, &rollback);
+	module_subinit(f2fs_init_compress_cache, f2fs_destroy_compress_cache, &rollback);
+	module_subinit(f2fs_create_casefold_cache, f2fs_destroy_casefold_cache, &rollback);
+
+	return 0;
 }
 
 module_init(init_f2fs_fs)