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-rw-r--r--fs/statfs.c14
1 files changed, 14 insertions, 0 deletions
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;