nilfs2: return f_fsid for statfs2
This follows the change of Coly Li's series ("fs: return f_fsid for
statfs(2)"), and make nilfs2 return f_fsid info for statfs(2).
Acked-by: Coly Li <coly.li@suse.de>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index e117e1e..8a965f9 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -476,11 +476,12 @@
{
struct super_block *sb = dentry->d_sb;
struct nilfs_sb_info *sbi = NILFS_SB(sb);
+ struct the_nilfs *nilfs = sbi->s_nilfs;
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
unsigned long long blocks;
unsigned long overhead;
unsigned long nrsvblocks;
sector_t nfreeblocks;
- struct the_nilfs *nilfs = sbi->s_nilfs;
int err;
/*
@@ -514,6 +515,9 @@
buf->f_files = atomic_read(&sbi->s_inodes_count);
buf->f_ffree = 0; /* nilfs_count_free_inodes(sb); */
buf->f_namelen = NILFS_NAME_LEN;
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
+
return 0;
}