17888ae30d
Starting from linux-2.6.37, {kmap,kunmap}_atomic takes 1 argument instead of 2.
We use zfs_{kmap,kunmap}_atomic as wrappers and always take 2 argument, but
ignore the 2nd for newer kernel.
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
21 lines
486 B
Plaintext
21 lines
486 B
Plaintext
dnl #
|
|
dnl # 2.6.37 API change
|
|
dnl # kmap_atomic changed from assigning hard-coded named slot to using
|
|
dnl # push/pop based dynamical allocation.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS], [
|
|
AC_MSG_CHECKING([whether kmap_atomic wants 1 args])
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#include <linux/pagemap.h>
|
|
],[
|
|
struct page page;
|
|
kmap_atomic(&page);
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_1ARG_KMAP_ATOMIC, 1,
|
|
[kmap_atomic wants 1 args])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|