---

yaml
---
r: 70714
b: refs/heads/master
c: 22d2b35
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 18796aa00243a594a2bd6733f1360aa38c3cd8f4
+refs/heads/master: 22d2b35b200f76085c16a2e14ca30b58510fcbe7

trunk/fs/fcntl.c

@@ -110,7 +110,7 @@ static int locate_fd(struct files_struct *files,
 	return error;
 }
 
-static int dupfd(struct file *file, unsigned int start)
+static int dupfd(struct file *file, unsigned int start, int cloexec)
 {
 	struct files_struct * files = current->files;
 	struct fdtable *fdt;
@@ -122,7 +122,10 @@ static int dupfd(struct file *file, unsigned int start)
 		/* locate_fd() may have expanded fdtable, load the ptr */
 		fdt = files_fdtable(files);
 		FD_SET(fd, fdt->open_fds);
-		FD_CLR(fd, fdt->close_on_exec);
+		if (cloexec)
+			FD_SET(fd, fdt->close_on_exec);
+		else
+			FD_CLR(fd, fdt->close_on_exec);
 		spin_unlock(&files->file_lock);
 		fd_install(fd, file);
 	} else {
@@ -195,7 +198,7 @@ asmlinkage long sys_dup(unsigned int fildes)
 	struct file * file = fget(fildes);
 
 	if (file)
-		ret = dupfd(file, 0);
+		ret = dupfd(file, 0, 0);
 	return ret;
 }
 
@@ -319,8 +322,9 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg,
 
 	switch (cmd) {
 	case F_DUPFD:
+	case F_DUPFD_CLOEXEC:
 		get_file(filp);
-		err = dupfd(filp, arg);
+		err = dupfd(filp, arg, cmd == F_DUPFD_CLOEXEC);
 		break;
 	case F_GETFD:
 		err = get_close_on_exec(fd) ? FD_CLOEXEC : 0;

trunk/include/linux/fcntl.h

@@ -3,12 +3,17 @@
 
 #include <asm/fcntl.h>
 
-/* Cancel a blocking posix lock; internal use only until we expose an
- * asynchronous lock api to userspace: */
-#define F_CANCELLK	(F_LINUX_SPECIFIC_BASE+5)
+#define F_SETLEASE	(F_LINUX_SPECIFIC_BASE + 0)
+#define F_GETLEASE	(F_LINUX_SPECIFIC_BASE + 1)
 
-#define F_SETLEASE	(F_LINUX_SPECIFIC_BASE+0)
-#define F_GETLEASE	(F_LINUX_SPECIFIC_BASE+1)
+/*
+ * Cancel a blocking posix lock; internal use only until we expose an
+ * asynchronous lock api to userspace:
+ */
+#define F_CANCELLK	(F_LINUX_SPECIFIC_BASE + 5)
+
+/* Create a file descriptor with FD_CLOEXEC set. */
+#define F_DUPFD_CLOEXEC	(F_LINUX_SPECIFIC_BASE + 6)
 
 /*
  * Request nofications on a directory.