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* [f2fs-dev] [jaegeuk-f2fs:dev-test 30/30] fs/f2fs/inode.c:1065:13: error: implicit declaration of function 'current_is_kswapd'
@ 2026-08-11 18:53 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2026-08-11 18:53 UTC (permalink / raw)
  To: Jaegeuk Kim; +Cc: linux-f2fs-devel, oe-kbuild-all

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev-test
head:   7451b3cd93b30f714efc83f6571abf8c50541839
commit: 7451b3cd93b30f714efc83f6571abf8c50541839 [30/30] f2fs: call __add_ino_entry out of the eviction path
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20260812/202608120225.emwHea9z-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260812/202608120225.emwHea9z-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/202608120225.emwHea9z-lkp@intel.com/

All errors (new ones prefixed by >>):

   fs/f2fs/inode.c: In function 'f2fs_post_evict_inode':
>> fs/f2fs/inode.c:1065:13: error: implicit declaration of function 'current_is_kswapd' [-Wimplicit-function-declaration]
    1065 |         if (current_is_kswapd()) {
         |             ^~~~~~~~~~~~~~~~~


vim +/current_is_kswapd +1065 fs/f2fs/inode.c

  1019	
  1020	static void f2fs_post_evict_inode(struct inode *inode)
  1021	{
  1022		struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  1023		struct f2fs_inode_info *fi = F2FS_I(inode);
  1024		nid_t xnid = fi->i_xattr_nid;
  1025		unsigned int record_bits = 0;
  1026	
  1027		dquot_drop(inode);
  1028	
  1029		stat_dec_inline_xattr(inode);
  1030		stat_dec_inline_dir(inode);
  1031		stat_dec_inline_inode(inode);
  1032		stat_dec_compr_inode(inode);
  1033		stat_sub_compr_blocks(inode,
  1034				atomic_read(&fi->i_compr_blocks));
  1035	
  1036		if (likely(!f2fs_cp_error(sbi) &&
  1037					!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
  1038			f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
  1039	
  1040		/*
  1041		 * anyway, it needs to remove the inode from sbi->inode_list[DIRTY_META]
  1042		 * list to avoid UAF in f2fs_sync_inode_meta() during checkpoint.
  1043		 */
  1044		f2fs_inode_synced(inode);
  1045	
  1046		/* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
  1047		if (inode->i_ino)
  1048			invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
  1049								inode->i_ino);
  1050		if (xnid)
  1051			invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
  1052	
  1053		if (!inode->i_nlink)
  1054			goto skip_record;
  1055	
  1056		if (is_inode_flag_set(inode, FI_APPEND_WRITE))
  1057			record_bits = BIT(APPEND_INO);
  1058		if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
  1059			record_bits = BIT(UPDATE_INO);
  1060	
  1061		if (!record_bits)
  1062			goto skip_record;
  1063	
  1064		/* Let's do this in workqueue out of the direct reclaim path. */
> 1065		if (current_is_kswapd()) {
  1066			f2fs_record_inode_state(sbi, inode->i_ino, record_bits);
  1067		} else {
  1068			struct evict_inode_work *ew =
  1069				mempool_alloc(evict_inode_work_pool, GFP_NOFS);
  1070	
  1071			ew->sbi = sbi;
  1072			ew->ino = inode->i_ino;
  1073			ew->add_ino_entry_bits = record_bits;
  1074			INIT_WORK(&ew->work, f2fs_evict_inode_work);
  1075			queue_work(sbi->evict_wq, &ew->work);
  1076		}
  1077	skip_record:
  1078		if (is_inode_flag_set(inode, FI_FREE_NID)) {
  1079			f2fs_alloc_nid_failed(sbi, inode->i_ino);
  1080			clear_inode_flag(inode, FI_FREE_NID);
  1081		} else {
  1082			/*
  1083			 * If xattr nid is corrupted, we can reach out error condition,
  1084			 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
  1085			 * In that case, f2fs_check_nid_range() is enough to give a clue.
  1086			 */
  1087		}
  1088	}
  1089	

--
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2026-08-11 18:53 [f2fs-dev] [jaegeuk-f2fs:dev-test 30/30] fs/f2fs/inode.c:1065:13: error: implicit declaration of function 'current_is_kswapd' kernel test robot
2026-08-11 18:53 ` kernel test robot

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