From 94ea77ac696d76522ad32a51e84a969f83284eda Mon Sep 17 00:00:00 2001
From: Coly Li <coly.li@suse.de>
Date: Thu, 2 Apr 2009 16:59:33 -0700
Subject: [PATCH] fs/cramfs: return f_fsid for statfs(2)
Make cramfs return f_fsid info for statfs(2).
Signed-off-by: Coly Li <coly.li@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/cramfs/inode.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 46e52980b98..dd3634e4c96 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -318,6 +318,7 @@ out:
static int cramfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
buf->f_type = CRAMFS_MAGIC;
buf->f_bsize = PAGE_CACHE_SIZE;
@@ -326,6 +327,8 @@ static int cramfs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_bavail = 0;
buf->f_files = CRAMFS_SB(sb)->files;
buf->f_ffree = 0;
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = CRAMFS_MAXPATHLEN;
return 0;
}
--
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