X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=fs%2Fstat.c;h=3a44dcf97da23d1704b599527db4a50edcbc04a6;hb=51bece910d2b0aca64cd3dee9fa2a8aa7feeadd9;hp=24211b030f393e8ba18aea474efbd4bb4a71031b;hpb=28e0cf22c1221650b4bfba48808d966160c42320;p=firefly-linux-kernel-4.4.55.git

diff --git a/fs/stat.c b/fs/stat.c
index 24211b030f39..3a44dcf97da2 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -4,7 +4,6 @@
  *  Copyright (C) 1991, 1992  Linus Torvalds
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
@@ -261,6 +260,7 @@ asmlinkage long sys_newlstat(char __user *filename, struct stat __user *statbuf)
 	return error;
 }
 
+#if !defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_SYS_NEWFSTATAT)
 asmlinkage long sys_newfstatat(int dfd, char __user *filename,
 				struct stat __user *statbuf, int flag)
 {
@@ -281,6 +281,7 @@ asmlinkage long sys_newfstatat(int dfd, char __user *filename,
 out:
 	return error;
 }
+#endif
 
 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf)
 {
@@ -395,6 +396,26 @@ asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user * statbuf)
 	return error;
 }
 
+asmlinkage long sys_fstatat64(int dfd, char __user *filename,
+			       struct stat64 __user *statbuf, int flag)
+{
+	struct kstat stat;
+	int error = -EINVAL;
+
+	if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+		goto out;
+
+	if (flag & AT_SYMLINK_NOFOLLOW)
+		error = vfs_lstat_fd(dfd, filename, &stat);
+	else
+		error = vfs_stat_fd(dfd, filename, &stat);
+
+	if (!error)
+		error = cp_new_stat64(&stat, statbuf);
+
+out:
+	return error;
+}
 #endif /* __ARCH_WANT_STAT64 */
 
 void inode_add_bytes(struct inode *inode, loff_t bytes)