__vfs_read 461 fs/read_write.c ret = __vfs_read(file, buf, count, pos); __vfs_read 1916 include/linux/fs.h extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *); __vfs_read 200 security/integrity/iint.c ret = __vfs_read(file, buf, count, &offset);