X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=fs%2Fstatfs.c;h=eea7af6f2f229e85f71e3ff3ac5d541e88956856;hb=b222e9af0a250141b302d671d2d1e73e9079c544;hp=f0216629621d6b52f21f19f9b4010181cfe45d4f;hpb=2863b00941bc3062ea3299ed4057acfd9e52c335;p=linux.git

diff --git a/fs/statfs.c b/fs/statfs.c
index f0216629621d..eea7af6f2f22 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -67,6 +67,20 @@ static int statfs_by_dentry(struct dentry *dentry, struct kstatfs *buf)
 	return retval;
 }
 
+int vfs_get_fsid(struct dentry *dentry, __kernel_fsid_t *fsid)
+{
+	struct kstatfs st;
+	int error;
+
+	error = statfs_by_dentry(dentry, &st);
+	if (error)
+		return error;
+
+	*fsid = st.f_fsid;
+	return 0;
+}
+EXPORT_SYMBOL(vfs_get_fsid);
+
 int vfs_statfs(const struct path *path, struct kstatfs *buf)
 {
 	int error;