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| author | Yunlong Song <yunlong.song@huawei.com> | 2018-07-12 23:09:26 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-08-01 11:52:36 -0700 |
| commit | 3611ce9911267cb93d364bd71ddea6821278d11f (patch) | |
| tree | 199f9a038e10e47ff811b63d246e1ef813522be0 /fs/f2fs | |
| parent | 36b877af7992893b6d1ddbe96971cab5ab9e50eb (diff) | |
| download | linux-3611ce9911267cb93d364bd71ddea6821278d11f.tar.bz2 | |
f2fs: do not set free of current section
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.song@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/segment.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index b5bd3287e104..50495515f0a0 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); } |