移去rt

hc

2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/file.h
..
..
@@ -9,6 +9,7 @@
9
9
 #include <linux/compiler.h>
10
10
 #include <linux/types.h>
11
11
 #include <linux/posix_types.h>
12
+#include <linux/errno.h>
12
13
 
13
14
 struct file;
14
15
 
..
..
@@ -16,6 +17,7 @@
16
17
 extern void fput_many(struct file *, unsigned int);
17
18
 
18
19
 struct file_operations;
20
+struct task_struct;
19
21
 struct vfsmount;
20
22
 struct dentry;
21
23
 struct inode;
..
..
@@ -47,6 +49,7 @@
47
49
 extern struct file *fget(unsigned int fd);
48
50
 extern struct file *fget_many(unsigned int fd, unsigned int refs);
49
51
 extern struct file *fget_raw(unsigned int fd);
52
+extern struct file *fget_task(struct task_struct *task, unsigned int fd);
50
53
 extern unsigned long __fdget(unsigned int fd);
51
54
 extern unsigned long __fdget_raw(unsigned int fd);
52
55
 extern unsigned long __fdget_pos(unsigned int fd);
..
..
@@ -83,12 +86,33 @@
83
86
 extern int replace_fd(unsigned fd, struct file *file, unsigned flags);
84
87
 extern void set_close_on_exec(unsigned int fd, int flag);
85
88
 extern bool get_close_on_exec(unsigned int fd);
89
+extern int __get_unused_fd_flags(unsigned flags, unsigned long nofile);
86
90
 extern int get_unused_fd_flags(unsigned flags);
87
91
 extern void put_unused_fd(unsigned int fd);
88
92
 
89
93
 extern void fd_install(unsigned int fd, struct file *file);
90
94
 
95
+extern int __receive_fd(int fd, struct file *file, int __user *ufd,
96
+			unsigned int o_flags);
97
+static inline int receive_fd_user(struct file *file, int __user *ufd,
98
+				  unsigned int o_flags)
99
+{
100
+	if (ufd == NULL)
101
+		return -EFAULT;
102
+	return __receive_fd(-1, file, ufd, o_flags);
103
+}
104
+static inline int receive_fd(struct file *file, unsigned int o_flags)
105
+{
106
+	return __receive_fd(-1, file, NULL, o_flags);
107
+}
108
+static inline int receive_fd_replace(int fd, struct file *file, unsigned int o_flags)
109
+{
110
+	return __receive_fd(fd, file, NULL, o_flags);
111
+}
112
+
91
113
 extern void flush_delayed_fput(void);
92
114
 extern void __fput_sync(struct file *);
93
115
 
116
+extern unsigned int sysctl_nr_open_min, sysctl_nr_open_max;
117
+
94
118
 #endif /* __LINUX_FILE_H */