zfs/config/kernel-proc-operations.m4

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dnl #
dnl # 5.6 API Change
dnl # The proc_ops structure was introduced to replace the use of
dnl # of the file_operations structure when registering proc handlers.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_PROC_OPERATIONS], [
ZFS_LINUX_TEST_SRC([proc_ops_struct], [
#include <linux/proc_fs.h>
int test_open(struct inode *ip, struct file *fp) { return 0; }
ssize_t test_read(struct file *fp, char __user *ptr,
size_t size, loff_t *offp) { return 0; }
ssize_t test_write(struct file *fp, const char __user *ptr,
size_t size, loff_t *offp) { return 0; }
loff_t test_lseek(struct file *fp, loff_t off, int flag)
{ return 0; }
int test_release(struct inode *ip, struct file *fp)
{ return 0; }
const struct proc_ops test_ops __attribute__ ((unused)) = {
.proc_open = test_open,
.proc_read = test_read,
.proc_write = test_write,
.proc_lseek = test_lseek,
.proc_release = test_release,
};
], [
struct proc_dir_entry *entry __attribute__ ((unused)) =
proc_create_data("test", 0444, NULL, &test_ops, NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_PROC_OPERATIONS], [
AC_MSG_CHECKING([whether proc_ops structure exists])
ZFS_LINUX_TEST_RESULT([proc_ops_struct], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PROC_OPS_STRUCT, 1, [proc_ops structure exists])
], [
AC_MSG_RESULT(no)
])
])