21 lines
509 B
Plaintext
21 lines
509 B
Plaintext
|
dnl #
|
||
|
|
dnl # 2.6.33 API change
|
||
|
|
dnl # Discard granularity and alignment restrictions may now be set.
|
||
|
|
dnl #
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_DISCARD_GRANULARITY], [
|
||
|
|
AC_MSG_CHECKING([whether ql->discard_granularity is available])
|
||
|
|
ZFS_LINUX_TRY_COMPILE([
|
||
|
|
#include <linux/blkdev.h>
|
||
|
|
],[
|
||
|
|
struct queue_limits ql __attribute__ ((unused));
|
||
|
|
|
||
|
|
ql.discard_granularity = 0;
|
||
|
|
],[
|
||
|
|
AC_MSG_RESULT(yes)
|
||
|
|
AC_DEFINE(HAVE_DISCARD_GRANULARITY, 1,
|
||
|
|
[ql->discard_granularity is available])
|
||
|
|
],[
|
||
|
|
AC_MSG_RESULT(no)
|
||
|
|
])
|
||
|
|
])
|