zfs-builds-mm/zfs-2.0.0-rc4/config/kernel-lseek-execute.m4

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2020-10-22 14:20:35 +02:00
dnl #
dnl # 3.11 API change
dnl # lseek_execute helper exported
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_LSEEK_EXECUTE], [
ZFS_LINUX_TEST_SRC([lseek_execute], [
#include <linux/fs.h>
], [
struct file *fp __attribute__ ((unused)) = NULL;
struct inode *ip __attribute__ ((unused)) = NULL;
loff_t offset __attribute__ ((unused)) = 0;
loff_t maxsize __attribute__ ((unused)) = 0;
lseek_execute(fp, ip, offset, maxsize);
])
])
AC_DEFUN([ZFS_AC_KERNEL_LSEEK_EXECUTE], [
AC_MSG_CHECKING([whether lseek_execute() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([lseek_execute],
[lseek_exclusive], [fs/read_write.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_LSEEK_EXECUTE, 1, [lseek_execute() is available])
], [
AC_MSG_RESULT(no)
])
])