kernel_read【转】

转自：http://blog.csdn.net/echoisland/article/details/7101097http://lxr.oss.org.cn/source/fs/exec.c

798 int kernel_read(struct file *file, loff_t offset,

799                 char *addr, unsigned long count)

800 {

801         mm_segment_t old_fs;

802         loff_t pos = offset;

803         int result;

804

805         old_fs = get_fs();

806         set_fs(get_ds());

807         /* The cast to a user pointer is valid due to the set_fs() */

808         result = vfs_read(file, (void __user *)addr, count, &pos);

809         set_fs(old_fs);

810         return result;

811 }

812

813 EXPORT_SYMBOL(kernel_read);

巴特西

kernel_read【转】

最新文章

热门文章