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Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r--fs/f2fs/super.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fe075aa12893..7ddf0d3cbece 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1226,10 +1226,13 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_blocks = total_count - start_count;
buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
sbi->current_reserved_blocks;
+
+ spin_lock(&sbi->stat_lock);
if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
buf->f_bfree = 0;
else
buf->f_bfree -= sbi->unusable_block_count;
+ spin_unlock(&sbi->stat_lock);
if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
buf->f_bavail = buf->f_bfree -
@@ -1508,7 +1511,10 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
if (err)
goto out_unlock;
+ spin_lock(&sbi->stat_lock);
sbi->unusable_block_count = 0;
+ spin_unlock(&sbi->stat_lock);
+
out_unlock:
mutex_unlock(&sbi->gc_mutex);
restore_flag: