fs/affs: return f_fsid for statfs(2)
Coly Li [Thu, 2 Apr 2009 23:59:32 +0000 (16:59 -0700)]
Make affs return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/affs/super.c

index a19d64b..5ce695e 100644 (file)
@@ -533,6 +533,7 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
        struct super_block *sb = dentry->d_sb;
        int              free;
+       u64              id = huge_encode_dev(sb->s_bdev->bd_dev);
 
        pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB(sb)->s_partition_size,
             AFFS_SB(sb)->s_reserved);
@@ -543,6 +544,9 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
        buf->f_blocks  = AFFS_SB(sb)->s_partition_size - AFFS_SB(sb)->s_reserved;
        buf->f_bfree   = free;
        buf->f_bavail  = free;
+       buf->f_fsid.val[0] = (u32)id;
+       buf->f_fsid.val[1] = (u32)(id >> 32);
+       buf->f_namelen = 30;
        return 0;
 }