Reverting linux/kernel/api/vfs_stat

linux/kernel/api/vfs_stat.md

@@ -1,18 +1,13 @@
-I don't know if this correct or not, but here a manpage ugly draft:
-
-#### SYNOPSIS
+I don't know if this correct or not, but:
 
 ```
-#include <linux/uaccess.h>
-
+#include
 vfs_stat ( char *path, struct kstat *kstat )
 ```
 
-#### DESCRIPTION
+`vfs_stat()` — retrieve information about the file pointed to by `path`.
 
-`vfs_stat()` — retrieve information about the file pointed to by `path`. Read `man 2 stat`.
-
-About `struct kstat` see file linux-source/include/linux/stat.h:
+About `struct kstat` see [https://docs.oracle.com/cd/E53394_01/html/E54769/kstat-3kstat.html](https://docs.oracle.com/cd/E53394_01/html/E54769/kstat-3kstat.html) and file linux-source/include/linux/stat.h:
 ```
 #include <asm/stat.h>
 #include <uapi/linux/stat.h>
@@ -49,43 +44,20 @@ struct kstat {
 
 Function source code: http://lxr.linux.no/linux+v4.6.4/fs/stat.c#L121
 
-#### EXAMPLES
-
-A wrapper example:
+Example:
 
 ```
 int file_stat ( char *fpath, struct kstat stat )
 {
-  int error;
-  mm_segment_t old_fs;
+        int error;
+        mm_segment_t old_fs;
 
-  old_fs = get_fs();
-  set_fs(KERNEL_DS);
-
-  error = vfs_stat (fpath, &stat);
-  set_fs(old_fs);
-
-  return error;
-}
-```
+        old_fs = get_fs();
+        set_fs(KERNEL_DS);
 
-Getting a file size:
+        error = vfs_stat (fpath, &stat);
+        set_fs(old_fs);
 
-```
-static int __init my_module_init()
-{
-  struct kstat stat
-  mm_segment_t old_fs;
-  old_fs = get_fs();
-  set_fs(KERNEL_DS);
-  vfs_stat ("/bin/ls", &stat)
-  printk (KERN_INFO "mode of ls: %o\n", stat.size);
-  set_fs(old_fs);
+        return error;
 }
-
-module_init ( my_module_init )
-```
-
-#### RETURN VALUE
-
-On success, `vfs_stat()` return zero; otherwise non-zero.
+```