For the case when sbi->segs_per_sec > 1, take section:segment = 5 for
example, if segment 1 is just used and allocate new segment 2, and the
blocks of segment 1 is invalidated, at this time, the previous code will
use __set_test_and_free to free the free_secmap and free_sections++,
this is not correct since it is still a current section, so fix it.

Signed-off-by: Yunlong Song <yunlong.s...@huawei.com>
---
 fs/f2fs/segment.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index b5bd328..5049551 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -448,6 +448,8 @@ static inline void __set_test_and_free(struct f2fs_sb_info 
*sbi,
        if (test_and_clear_bit(segno, free_i->free_segmap)) {
                free_i->free_segments++;
 
+               if (IS_CURSEC(sbi, secno))
+                       goto skip_free;
                next = find_next_bit(free_i->free_segmap,
                                start_segno + sbi->segs_per_sec, start_segno);
                if (next >= start_segno + sbi->segs_per_sec) {
@@ -455,6 +457,7 @@ static inline void __set_test_and_free(struct f2fs_sb_info 
*sbi,
                                free_i->free_sections++;
                }
        }
+skip_free:
        spin_unlock(&free_i->segmap_lock);
 }
 
-- 
1.8.5.2


------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel

Reply via email to