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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-10-11 10:55:04 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-10-11 10:55:04 +0100
commita0f0dd57f4a85310d9936f1770a0424b49fef876 (patch)
tree2f85b8b67dda13d19b02ca39e0fbef921cb1cf8b /include/linux/file.h
parent2a552d5e63d7fa602c9a9a0717008737f55625a6 (diff)
parent846a136881b8f73c1f74250bf6acfaa309cab1f2 (diff)
Merge branch 'fixes' into for-linus
Conflicts: arch/arm/kernel/smp.c
Diffstat (limited to 'include/linux/file.h')
-rw-r--r--include/linux/file.h35
1 files changed, 32 insertions, 3 deletions
diff --git a/include/linux/file.h b/include/linux/file.h
index a22408bac0d..cbacf4faf44 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -26,15 +26,44 @@ static inline void fput_light(struct file *file, int fput_needed)
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);