6.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jaegeuk Kim jaegeuk@kernel.org
[ Upstream commit 05d3273ad03fa5ea1177b4f3dfeeb6de4899b504 ]
No functional change.
Reviewed-by: Chao Yu chao@kernel.org Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Stable-dep-of: d26fecb03e1f ("f2fs: prevent the current section from being selected as a victim during GC") Signed-off-by: Sasha Levin sashal@kernel.org --- fs/f2fs/segment.h | 40 ++++++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 16 deletions(-)
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 0465dc00b349d..5fcb1f92d506f 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -429,7 +429,6 @@ static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno) unsigned int secno = GET_SEC_FROM_SEG(sbi, segno); unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno); unsigned int next; - unsigned int usable_segs = f2fs_usable_segs_in_sec(sbi);
spin_lock(&free_i->segmap_lock); clear_bit(segno, free_i->free_segmap); @@ -437,7 +436,7 @@ static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno)
next = find_next_bit(free_i->free_segmap, start_segno + SEGS_PER_SEC(sbi), start_segno); - if (next >= start_segno + usable_segs) { + if (next >= start_segno + f2fs_usable_segs_in_sec(sbi)) { clear_bit(secno, free_i->free_secmap); free_i->free_sections++; } @@ -463,22 +462,31 @@ static inline void __set_test_and_free(struct f2fs_sb_info *sbi, unsigned int secno = GET_SEC_FROM_SEG(sbi, segno); unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno); unsigned int next; - unsigned int usable_segs = f2fs_usable_segs_in_sec(sbi); + bool ret;
spin_lock(&free_i->segmap_lock); - if (test_and_clear_bit(segno, free_i->free_segmap)) { - free_i->free_segments++; - - if (!inmem && IS_CURSEC(sbi, secno)) - goto skip_free; - next = find_next_bit(free_i->free_segmap, - start_segno + SEGS_PER_SEC(sbi), start_segno); - if (next >= start_segno + usable_segs) { - if (test_and_clear_bit(secno, free_i->free_secmap)) - free_i->free_sections++; - } - } -skip_free: + ret = test_and_clear_bit(segno, free_i->free_segmap); + if (!ret) + goto unlock_out; + + free_i->free_segments++; + + if (!inmem && IS_CURSEC(sbi, secno)) + goto unlock_out; + + /* check large section */ + next = find_next_bit(free_i->free_segmap, + start_segno + SEGS_PER_SEC(sbi), start_segno); + if (next < start_segno + f2fs_usable_segs_in_sec(sbi)) + goto unlock_out; + + ret = test_and_clear_bit(secno, free_i->free_secmap); + if (!ret) + goto unlock_out; + + free_i->free_sections++; + +unlock_out: spin_unlock(&free_i->segmap_lock); }