[f2fs-dev] [jaegeuk-f2fs:dev-test 65/93] fs/f2fs/data.c:58:70: warning: passing argument 1 of 'fscrypt_pagecache_folio' discards 'const' qualifier from pointer target type

[f2fs-dev] [jaegeuk-f2fs:dev-test 65/93] fs/f2fs/data.c:58:70: warning: passing argument 1 of 'fscrypt_pagecache_folio' discards 'const' qualifier from pointer target type

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev-test
head:   bc8610a18daa4a611d189374031fe1fa3c603423
commit: 9f506c758707749076b4ec2402007670c6f35558 [65/93] f2fs: Use a folio in f2fs_is_cp_guaranteed()
config: i386-buildonly-randconfig-001-20250710 (https://download.01.org/0day-ci/archive/20250710/202507101514.gTDqNbBm-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250710/202507101514.gTDqNbBm-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/202507101514.gTDqNbBm-lkp@intel.com/

All warnings (new ones prefixed by >>):

   fs/f2fs/data.c: In function 'f2fs_is_cp_guaranteed':
>> fs/f2fs/data.c:58:70: warning: passing argument 1 of 'fscrypt_pagecache_folio' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
      58 |                 return folio_test_f2fs_gcing(fscrypt_pagecache_folio(folio));
         |                                                                      ^~~~~
   In file included from fs/f2fs/f2fs.h:28,
                    from fs/f2fs/data.c:24:
   include/linux/fscrypt.h:527:67: note: expected 'struct folio *' but argument is of type 'const struct folio *'
     527 | static inline struct folio *fscrypt_pagecache_folio(struct folio *bounce_folio)
         |                                                     ~~~~~~~~~~~~~~^~~~~~~~~~~~


vim +58 fs/f2fs/data.c

    49	
    50	bool f2fs_is_cp_guaranteed(const struct page *page)
    51	{
    52		const struct folio *folio = page_folio(page);
    53		struct address_space *mapping = folio->mapping;
    54		struct inode *inode;
    55		struct f2fs_sb_info *sbi;
    56	
    57		if (fscrypt_is_bounce_folio(folio))
  > 58			return folio_test_f2fs_gcing(fscrypt_pagecache_folio(folio));
    59	
    60		inode = mapping->host;
    61		sbi = F2FS_I_SB(inode);
    62	
    63		if (inode->i_ino == F2FS_META_INO(sbi) ||
    64				inode->i_ino == F2FS_NODE_INO(sbi) ||
    65				S_ISDIR(inode->i_mode))
    66			return true;
    67	
    68		if ((S_ISREG(inode->i_mode) && IS_NOQUOTA(inode)) ||
    69				folio_test_f2fs_gcing(folio))
    70			return true;
    71		return false;
    72	}
    73	

-- 
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https://github.com/intel/lkp-tests/wiki


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