fput(file);
}
+struct fd {
+ struct file *file;
+ int need_put;
+};
+
+static inline void fdput(struct fd fd)
+{
+ if (fd.need_put)
+ fput(fd.file);
+}
+
extern struct file *fget(unsigned int fd);
extern struct file *fget_light(unsigned int fd, int *fput_needed);
+
+static inline struct fd fdget(unsigned int fd)
+{
+ int b;
+ struct file *f = fget_light(fd, &b);
+ return (struct fd){f,b};
+}
+
extern struct file *fget_raw(unsigned int fd);
extern struct file *fget_raw_light(unsigned int fd, int *fput_needed);
+
+static inline struct fd fdget_raw(unsigned int fd)
+{
+ int b;
+ struct file *f = fget_raw_light(fd, &b);
+ return (struct fd){f,b};
+}
+
+extern int f_dupfd(unsigned int from, struct file *file, unsigned flags);
+extern int replace_fd(unsigned fd, struct file *file, unsigned flags);
extern void set_close_on_exec(unsigned int fd, int flag);
+extern bool get_close_on_exec(unsigned int fd);
extern void put_filp(struct file *);
-extern int alloc_fd(unsigned start, unsigned flags);
-extern int get_unused_fd(void);
-#define get_unused_fd_flags(flags) alloc_fd(0, (flags))
+extern int get_unused_fd_flags(unsigned flags);
+#define get_unused_fd() get_unused_fd_flags(0)
extern void put_unused_fd(unsigned int fd);
extern void fd_install(unsigned int fd, struct file *file);