fs/ufs: return f_fsid for statfs(2)

Make ufs return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index e1c1fc5ee239..60359291761f 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1268,6 +1268,7 @@ static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf)
         struct ufs_super_block_first *usb1;
         struct ufs_super_block_second *usb2;
         struct ufs_super_block_third *usb3;
+        u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
 
         lock_kernel();
 
@@ -1290,6 +1291,8 @@ static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf)
                 ? (buf->f_bfree - (((long)buf->f_blocks / 100) * uspi->s_minfree)) : 0;
         buf->f_files = uspi->s_ncg * uspi->s_ipg;
         buf->f_namelen = UFS_MAXNAMLEN;
+        buf->f_fsid.val[0] = (u32)id;
+        buf->f_fsid.val[1] = (u32)(id >> 32);
 
         unlock_kernel();