[PATCH 19/20] fs/udf: return f_fsid for statfs(2)

[PATCH 19/20] fs/udf: return f_fsid for statfs(2)

[Coly Li]

This patch makes udf return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Jan Kara <jack@suse.cz>
---
 fs/udf/super.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index e25e701..192d4f2 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -2086,6 +2086,7 @@ static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct super_block *sb = dentry->d_sb;
 	struct udf_sb_info *sbi = UDF_SB(sb);
 	struct logicalVolIntegrityDescImpUse *lvidiu;
+	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);

 	if (sbi->s_lvid_bh != NULL)
 		lvidiu = udf_sb_lvidiu(sbi);
@@ -2101,8 +2102,9 @@ static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
 					  le32_to_cpu(lvidiu->numDirs)) : 0)
 			+ buf->f_bfree;
 	buf->f_ffree = buf->f_bfree;
-	/* __kernel_fsid_t f_fsid */
 	buf->f_namelen = UDF_NAME_LEN - 2;
+	buf->f_fsid.val[0] = (u32)id;
+	buf->f_fsid.val[1] = (u32)(id >> 32);

 	return 0;
 }
-- 
Coly Li
SuSE Labs