[PATCH 12/20] fs/minix: return f_fsid for statfs(2)

[PATCH 12/20] fs/minix: return f_fsid for statfs(2)

[Coly Li]

This patch makes minix file system return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 fs/minix/inode.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index d1d1eb8..f6f23b6 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -321,15 +321,20 @@ out:

 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
-	struct minix_sb_info *sbi = minix_sb(dentry->d_sb);
-	buf->f_type = dentry->d_sb->s_magic;
-	buf->f_bsize = dentry->d_sb->s_blocksize;
+	struct super_block *sb = dentry->d_sb;
+	struct minix_sb_info *sbi = minix_sb(sb);
+	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = sb->s_blocksize;
 	buf->f_blocks = (sbi->s_nzones - sbi->s_firstdatazone) << sbi->s_log_zone_size;
 	buf->f_bfree = minix_count_free_blocks(sbi);
 	buf->f_bavail = buf->f_bfree;
 	buf->f_files = sbi->s_ninodes;
 	buf->f_ffree = minix_count_free_inodes(sbi);
 	buf->f_namelen = sbi->s_namelen;
+	buf->f_fsid.val[0] = (u32)id;
+	buf->f_fsid.val[1] = (u32)(id >> 32);
+
 	return 0;
 }

-- 
Coly Li
SuSE Labs