1 files changed, 34 insertions, 12 deletions

diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 82163c4b32c9..158a41eed314 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -21,23 +21,45 @@
  */
 #define NR_OPEN_DEFAULT BITS_PER_LONG
 
-/*
- * The embedded_fd_set is a small fd_set,
- * suitable for most tasks (which open <= BITS_PER_LONG files)
- */
-struct embedded_fd_set {
-        unsigned long fds_bits[1];
-};
-
 struct fdtable {
         unsigned int max_fds;
         struct file __rcu **fd;      /* current fd array */
-        fd_set *close_on_exec;
-        fd_set *open_fds;
+        unsigned long *close_on_exec;
+        unsigned long *open_fds;
         struct rcu_head rcu;
         struct fdtable *next;
 };
 
+static inline void __set_close_on_exec(int fd, struct fdtable *fdt)
+{
+        __set_bit(fd, fdt->close_on_exec);
+}
+
+static inline void __clear_close_on_exec(int fd, struct fdtable *fdt)
+{
+        __clear_bit(fd, fdt->close_on_exec);
+}
+
+static inline bool close_on_exec(int fd, const struct fdtable *fdt)
+{
+        return test_bit(fd, fdt->close_on_exec);
+}
+
+static inline void __set_open_fd(int fd, struct fdtable *fdt)
+{
+        __set_bit(fd, fdt->open_fds);
+}
+
+static inline void __clear_open_fd(int fd, struct fdtable *fdt)
+{
+        __clear_bit(fd, fdt->open_fds);
+}
+
+static inline bool fd_is_open(int fd, const struct fdtable *fdt)
+{
+        return test_bit(fd, fdt->open_fds);
+}
+
 /*
  * Open file table structure
  */
@@ -53,8 +75,8 @@ struct files_struct {
    */
         spinlock_t file_lock ____cacheline_aligned_in_smp;
         int next_fd;
-        struct embedded_fd_set close_on_exec_init;
-        struct embedded_fd_set open_fds_init;
+        unsigned long close_on_exec_init[1];
+        unsigned long open_fds_init[1];
         struct file __rcu * fd_array[NR_OPEN_DEFAULT];
 };