linux-kernel - Re: [PATCH v4] f2fs: prevent the current section from being selected as a victim during GC

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Message-ID: <202504032206.xzJoHkRX-lkp@intel.com>
Date: Thu, 3 Apr 2025 23:11:12 +0800
From: kernel test robot <lkp@...el.com>
To: "yohan.joung" <yohan.joung@...com>, jaegeuk@...nel.org, chao@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, pilhyun.kim@...com,
	yohan.joung@...com
Subject: Re: [PATCH v4] f2fs: prevent the current section from being selected
 as a victim during GC

Hi yohan.joung,

kernel test robot noticed the following build errors:

[auto build test ERROR on jaegeuk-f2fs/dev-test]
[also build test ERROR on jaegeuk-f2fs/dev linus/master v6.14 next-20250403]
[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/yohan-joung/f2fs-prevent-the-current-section-from-being-selected-as-a-victim-during-GC/20250403-151057
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev-test
patch link:    https://lore.kernel.org/r/20250403071016.2940-1-yohan.joung%40sk.com
patch subject: [PATCH v4] f2fs: prevent the current section from being selected as a victim during GC
config: i386-buildonly-randconfig-005-20250403 (https://download.01.org/0day-ci/archive/20250403/202504032206.xzJoHkRX-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250403/202504032206.xzJoHkRX-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504032206.xzJoHkRX-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from fs/f2fs/checkpoint.c:20:
   fs/f2fs/segment.h: In function '__set_test_and_free':
>> fs/f2fs/segment.h:480:81: error: macro "GET_SEC_FROM_SEG" requires 2 arguments, but only 1 given
     480 |                                 if (GET_SEC_FROM_SEG(sbi->next_victim_seg[BG_GC]) == secno)
         |                                                                                 ^
   fs/f2fs/segment.h:105: note: macro "GET_SEC_FROM_SEG" defined here
     105 | #define GET_SEC_FROM_SEG(sbi, segno)                            \
         | 
>> fs/f2fs/segment.h:480:37: error: 'GET_SEC_FROM_SEG' undeclared (first use in this function)
     480 |                                 if (GET_SEC_FROM_SEG(sbi->next_victim_seg[BG_GC]) == secno)
         |                                     ^~~~~~~~~~~~~~~~
   fs/f2fs/segment.h:480:37: note: each undeclared identifier is reported only once for each function it appears in
   fs/f2fs/segment.h:483:81: error: macro "GET_SEC_FROM_SEG" requires 2 arguments, but only 1 given
     483 |                                 if (GET_SEC_FROM_SEG(sbi->next_victim_seg[FG_GC]) == secno)
         |                                                                                 ^
   fs/f2fs/segment.h:105: note: macro "GET_SEC_FROM_SEG" defined here
     105 | #define GET_SEC_FROM_SEG(sbi, segno)                            \
         | 


vim +/GET_SEC_FROM_SEG +480 fs/f2fs/segment.h

   458	
   459	static inline void __set_test_and_free(struct f2fs_sb_info *sbi,
   460			unsigned int segno, bool inmem)
   461	{
   462		struct free_segmap_info *free_i = FREE_I(sbi);
   463		unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
   464		unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
   465		unsigned int next;
   466		unsigned int usable_segs = f2fs_usable_segs_in_sec(sbi);
   467	
   468		spin_lock(&free_i->segmap_lock);
   469		if (test_and_clear_bit(segno, free_i->free_segmap)) {
   470			free_i->free_segments++;
   471	
   472			if (!inmem && IS_CURSEC(sbi, secno))
   473				goto skip_free;
   474			next = find_next_bit(free_i->free_segmap,
   475					start_segno + SEGS_PER_SEC(sbi), start_segno);
   476			if (next >= start_segno + usable_segs) {
   477				if (test_and_clear_bit(secno, free_i->free_secmap)) {
   478					free_i->free_sections++;
   479	
 > 480					if (GET_SEC_FROM_SEG(sbi->next_victim_seg[BG_GC]) == secno)
   481						sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
   482	
   483					if (GET_SEC_FROM_SEG(sbi->next_victim_seg[FG_GC]) == secno)
   484						sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
   485				}
   486			}
   487		}
   488	skip_free:
   489		spin_unlock(&free_i->segmap_lock);
   490	}
   491	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki