1dnl # 2dnl # 2.6.33 API change 3dnl # Discard granularity and alignment restrictions may now be set. 4dnl # 5AC_DEFUN([ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY], [ 6 ZFS_LINUX_TEST_SRC([discard_granularity], [ 7 #include <linux/blkdev.h> 8 ],[ 9 struct queue_limits ql __attribute__ ((unused)); 10 ql.discard_granularity = 0; 11 ]) 12]) 13 14AC_DEFUN([ZFS_AC_KERNEL_DISCARD_GRANULARITY], [ 15 AC_MSG_CHECKING([whether ql->discard_granularity is available]) 16 ZFS_LINUX_TEST_RESULT([discard_granularity], [ 17 AC_MSG_RESULT(yes) 18 ],[ 19 ZFS_LINUX_TEST_ERROR([ql->discard_granularity]) 20 ]) 21]) 22