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f2fs: fix to update f2fs_super_block fields under sb_lock

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Fields in struct f2fs_super_block should be updated under coverage
of sb_lock, fix to adjust update_sb_metadata() for that rule.

Fixes: 04f0b2eaa3 ("f2fs: ioctl for removing a range from F2FS")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2020-03-03 20:09:25 +08:00 committed by Jaegeuk Kim
parent c84ef3c5e6
commit a4ba5dfc5c
1 changed files with 13 additions and 4 deletions
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17
fs/f2fs/gc.c
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@ -1442,12 +1442,19 @@ static int free_segment_range(struct f2fs_sb_info *sbi, unsigned int start,
static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
{
struct f2fs_super_block *raw_sb = F2FS_RAW_SUPER(sbi);
int section_count = le32_to_cpu(raw_sb->section_count);
int segment_count = le32_to_cpu(raw_sb->segment_count);
int segment_count_main = le32_to_cpu(raw_sb->segment_count_main);
long long block_count = le64_to_cpu(raw_sb->block_count);
int section_count;
int segment_count;
int segment_count_main;
long long block_count;
int segs = secs * sbi->segs_per_sec;
down_write(&sbi->sb_lock);
section_count = le32_to_cpu(raw_sb->section_count);
segment_count = le32_to_cpu(raw_sb->segment_count);
segment_count_main = le32_to_cpu(raw_sb->segment_count_main);
block_count = le64_to_cpu(raw_sb->block_count);
raw_sb->section_count = cpu_to_le32(section_count + secs);
raw_sb->segment_count = cpu_to_le32(segment_count + segs);
raw_sb->segment_count_main = cpu_to_le32(segment_count_main + segs);
@ -1461,6 +1468,8 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
raw_sb->devs[last_dev].total_segments =
cpu_to_le32(dev_segs + segs);
}
up_write(&sbi->sb_lock);
}
static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)