[willy-pagecache:for-next 42/48] fs/f2fs/f2fs.h:4057:67: warning: declaration of 'struct pagevec' will not be visible outside of this function

From: kernel test robot
Date: Thu Dec 09 2021 - 03:24:27 EST

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tree: git://git.infradead.org/users/willy/pagecache for-next
head: 9244dddc51b5e46444a334c881372aa66138f74a
commit: 3fda3cf387c172cc9a528b6556a024627c9843de [42/48] mm: Convert find_lock_entries() to use a folio_batch
config: x86_64-randconfig-a013-20211207 (https://download.01.org/0day-ci/archive/20211209/202112091651.l741qHlr-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git remote add willy-pagecache git://git.infradead.org/users/willy/pagecache
git fetch --no-tags willy-pagecache for-next
git checkout 3fda3cf387c172cc9a528b6556a024627c9843de
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

In file included from fs/f2fs/dir.c:13:
>> fs/f2fs/f2fs.h:4057:67: warning: declaration of 'struct pagevec' will not be visible outside of this function [-Wvisibility]
bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
^
1 warning generated.

vim +4057 fs/f2fs/f2fs.h

4c8ff7095bef64 Chao Yu 2019-11-01 4036
4c8ff7095bef64 Chao Yu 2019-11-01 4037 /*
4c8ff7095bef64 Chao Yu 2019-11-01 4038 * compress.c
4c8ff7095bef64 Chao Yu 2019-11-01 4039 */
4c8ff7095bef64 Chao Yu 2019-11-01 4040 #ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff7095bef64 Chao Yu 2019-11-01 4041 bool f2fs_is_compressed_page(struct page *page);
4c8ff7095bef64 Chao Yu 2019-11-01 4042 struct page *f2fs_compress_control_page(struct page *page);
4c8ff7095bef64 Chao Yu 2019-11-01 4043 int f2fs_prepare_compress_overwrite(struct inode *inode,
4c8ff7095bef64 Chao Yu 2019-11-01 4044 struct page **pagep, pgoff_t index, void **fsdata);
4c8ff7095bef64 Chao Yu 2019-11-01 4045 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4c8ff7095bef64 Chao Yu 2019-11-01 4046 pgoff_t index, unsigned copied);
3265d3db1f1639 Chao Yu 2020-03-18 4047 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4c8ff7095bef64 Chao Yu 2019-11-01 4048 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4c8ff7095bef64 Chao Yu 2019-11-01 4049 bool f2fs_is_compress_backend_ready(struct inode *inode);
5e6bbde9598230 Chao Yu 2020-04-08 4050 int f2fs_init_compress_mempool(void);
5e6bbde9598230 Chao Yu 2020-04-08 4051 void f2fs_destroy_compress_mempool(void);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4052 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4053 void f2fs_end_read_compressed_page(struct page *page, bool failed,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4054 block_t blkaddr);
4c8ff7095bef64 Chao Yu 2019-11-01 4055 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4c8ff7095bef64 Chao Yu 2019-11-01 4056 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
b368cc5e263411 Fengnan Chang 2021-10-22 @4057 bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
b368cc5e263411 Fengnan Chang 2021-10-22 4058 int index, int nr_pages);
bbe1da7e34ac5a Chao Yu 2021-08-06 4059 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4c8ff7095bef64 Chao Yu 2019-11-01 4060 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4c8ff7095bef64 Chao Yu 2019-11-01 4061 int f2fs_write_multi_pages(struct compress_ctx *cc,
4c8ff7095bef64 Chao Yu 2019-11-01 4062 int *submitted,
4c8ff7095bef64 Chao Yu 2019-11-01 4063 struct writeback_control *wbc,
4c8ff7095bef64 Chao Yu 2019-11-01 4064 enum iostat_type io_type);
4c8ff7095bef64 Chao Yu 2019-11-01 4065 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
94afd6d6e52531 Chao Yu 2021-08-04 4066 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
94afd6d6e52531 Chao Yu 2021-08-04 4067 pgoff_t fofs, block_t blkaddr, unsigned int llen,
94afd6d6e52531 Chao Yu 2021-08-04 4068 unsigned int c_len);
4c8ff7095bef64 Chao Yu 2019-11-01 4069 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4c8ff7095bef64 Chao Yu 2019-11-01 4070 unsigned nr_pages, sector_t *last_block_in_bio,
0683728adab251 Chao Yu 2020-02-18 4071 bool is_readahead, bool for_write);
4c8ff7095bef64 Chao Yu 2019-11-01 4072 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
7f59b277f79e8a Eric Biggers 2021-01-04 4073 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
7f59b277f79e8a Eric Biggers 2021-01-04 4074 void f2fs_put_page_dic(struct page *page);
94afd6d6e52531 Chao Yu 2021-08-04 4075 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4c8ff7095bef64 Chao Yu 2019-11-01 4076 int f2fs_init_compress_ctx(struct compress_ctx *cc);
8bfbfb0ddd706b Chao Yu 2021-05-10 4077 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4c8ff7095bef64 Chao Yu 2019-11-01 4078 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4079 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4080 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
31083031709eea Chao Yu 2020-09-14 4081 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
31083031709eea Chao Yu 2020-09-14 4082 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
c68d6c88302250 Chao Yu 2020-09-14 4083 int __init f2fs_init_compress_cache(void);
c68d6c88302250 Chao Yu 2020-09-14 4084 void f2fs_destroy_compress_cache(void);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4085 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4086 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4087 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4088 nid_t ino, block_t blkaddr);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4089 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4090 block_t blkaddr);
6ce19aff0b8cd3 Chao Yu 2021-05-20 4091 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
5ac443e26a0964 Daeho Jeong 2021-03-15 4092 #define inc_compr_inode_stat(inode) \
5ac443e26a0964 Daeho Jeong 2021-03-15 4093 do { \
5ac443e26a0964 Daeho Jeong 2021-03-15 4094 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
5ac443e26a0964 Daeho Jeong 2021-03-15 4095 sbi->compr_new_inode++; \
5ac443e26a0964 Daeho Jeong 2021-03-15 4096 } while (0)
5ac443e26a0964 Daeho Jeong 2021-03-15 4097 #define add_compr_block_stat(inode, blocks) \
5ac443e26a0964 Daeho Jeong 2021-03-15 4098 do { \
5ac443e26a0964 Daeho Jeong 2021-03-15 4099 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
5ac443e26a0964 Daeho Jeong 2021-03-15 4100 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
5ac443e26a0964 Daeho Jeong 2021-03-15 4101 sbi->compr_written_block += blocks; \
5ac443e26a0964 Daeho Jeong 2021-03-15 4102 sbi->compr_saved_block += diff; \
5ac443e26a0964 Daeho Jeong 2021-03-15 4103 } while (0)
4c8ff7095bef64 Chao Yu 2019-11-01 4104 #else
4c8ff7095bef64 Chao Yu 2019-11-01 4105 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4c8ff7095bef64 Chao Yu 2019-11-01 4106 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4c8ff7095bef64 Chao Yu 2019-11-01 4107 {
4c8ff7095bef64 Chao Yu 2019-11-01 4108 if (!f2fs_compressed_file(inode))
4c8ff7095bef64 Chao Yu 2019-11-01 4109 return true;
4c8ff7095bef64 Chao Yu 2019-11-01 4110 /* not support compression */
4c8ff7095bef64 Chao Yu 2019-11-01 4111 return false;
4c8ff7095bef64 Chao Yu 2019-11-01 4112 }
4c8ff7095bef64 Chao Yu 2019-11-01 4113 static inline struct page *f2fs_compress_control_page(struct page *page)
4c8ff7095bef64 Chao Yu 2019-11-01 4114 {
4c8ff7095bef64 Chao Yu 2019-11-01 4115 WARN_ON_ONCE(1);
4c8ff7095bef64 Chao Yu 2019-11-01 4116 return ERR_PTR(-EINVAL);
4c8ff7095bef64 Chao Yu 2019-11-01 4117 }
5e6bbde9598230 Chao Yu 2020-04-08 4118 static inline int f2fs_init_compress_mempool(void) { return 0; }
5e6bbde9598230 Chao Yu 2020-04-08 4119 static inline void f2fs_destroy_compress_mempool(void) { }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4120 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4121 static inline void f2fs_end_read_compressed_page(struct page *page,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4122 bool failed, block_t blkaddr)
7f59b277f79e8a Eric Biggers 2021-01-04 4123 {
7f59b277f79e8a Eric Biggers 2021-01-04 4124 WARN_ON_ONCE(1);
7f59b277f79e8a Eric Biggers 2021-01-04 4125 }
7f59b277f79e8a Eric Biggers 2021-01-04 4126 static inline void f2fs_put_page_dic(struct page *page)
7f59b277f79e8a Eric Biggers 2021-01-04 4127 {
7f59b277f79e8a Eric Biggers 2021-01-04 4128 WARN_ON_ONCE(1);
7f59b277f79e8a Eric Biggers 2021-01-04 4129 }
94afd6d6e52531 Chao Yu 2021-08-04 4130 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
bbe1da7e34ac5a Chao Yu 2021-08-06 4131 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4132 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4133 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
31083031709eea Chao Yu 2020-09-14 4134 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
31083031709eea Chao Yu 2020-09-14 4135 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
c68d6c88302250 Chao Yu 2020-09-14 4136 static inline int __init f2fs_init_compress_cache(void) { return 0; }
c68d6c88302250 Chao Yu 2020-09-14 4137 static inline void f2fs_destroy_compress_cache(void) { }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4138 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4139 block_t blkaddr) { }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4140 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4141 struct page *page, nid_t ino, block_t blkaddr) { }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4142 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4143 struct page *page, block_t blkaddr) { return false; }
6ce19aff0b8cd3 Chao Yu 2021-05-20 4144 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
6ce19aff0b8cd3 Chao Yu 2021-05-20 4145 nid_t ino) { }
5ac443e26a0964 Daeho Jeong 2021-03-15 4146 #define inc_compr_inode_stat(inode) do { } while (0)
94afd6d6e52531 Chao Yu 2021-08-04 4147 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
94afd6d6e52531 Chao Yu 2021-08-04 4148 pgoff_t fofs, block_t blkaddr, unsigned int llen,
94afd6d6e52531 Chao Yu 2021-08-04 4149 unsigned int c_len) { }
4c8ff7095bef64 Chao Yu 2019-11-01 4150 #endif
4c8ff7095bef64 Chao Yu 2019-11-01 4151

:::::: The code at line 4057 was first introduced by commit
:::::: b368cc5e26341113453e7458f03cdfe0eeb84a40 f2fs: compress: fix overwrite may reduce compress ratio unproperly

:::::: TO: Fengnan Chang <changfengnan@xxxxxxxx>
:::::: CC: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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