]) # LIBCFS_IOV_ITER_HAS_TYPE
#
+# LIBCFS_HAVE_NS_TO_TIMESPEC64
+#
+# Kernel version 4.16-rc3 commit a84d1169164b274f13b97a23ff235c000efe3b49
+# introduced struct __kernel_old_timeval
+#
+AC_DEFUN([LIBCFS_HAVE_NS_TO_TIMESPEC64],[
+LB_CHECK_COMPILE([does 'ns_to_timespec64()' exist],
+kernel_old_timeval, [
+ #include <linux/time.h>
+],[
+ struct timespec64 kts;
+
+ kts = ns_to_timespec64(0);
+],[
+ AC_DEFINE(HAVE_NS_TO_TIMESPEC64, 1,
+ [ns_to_timespec64() is available])
+])
+]) # LIBCFS_HAVE_NS_TO_TIMESPEC64
+
+#
# Kernel version 3.17 changed hlist_add_after to
# hlist_add_behind
#
]) # LIBCFS_REFCOUNT_T
#
+# Kernel version 4.12 commit 499118e966f1d2150bd66647c8932343c4e9a0b8
+# introduce memalloc_noreclaim_{save,restore}
+#
+AC_DEFUN([LIBCFS_MEMALLOC_NORECLAIM], [
+LB_CHECK_COMPILE([if memalloc_noreclaim_{save,restore} exist],
+memalloc_noreclaim, [
+ #include <linux/sched/mm.h>
+],[
+ int flag = memalloc_noreclaim_save();
+ memalloc_noreclaim_restore(flag);
+],[
+ AC_DEFINE(HAVE_MEMALLOC_RECLAIM, 1,
+ [memalloc_noreclaim_{save,restore}() is supported])
+])
+]) # LIBCFS_MEMALLOC_NORECLAIM
+
+#
# LIBCFS_SCHED_HEADERS
#
# 4.11 has broken up sched.h into more headers.
]) # LIBCFS_WAIT_VAR_EVENT
#
+# LIBCFS_BITMAP_ALLOC
+#
+# Kernel version 4.17 commit c42b65e363ce97a828f81b59033c3558f8fa7f70
+# added bitmap memory allocation handling.
+#
+AC_DEFUN([LIBCFS_BITMAP_ALLOC], [
+LB_CHECK_COMPILE([if Linux bitmap memory management exist],
+bitmap_alloc, [
+ #include <linux/bitmap.h>
+],[
+ unsigned long *map = bitmap_alloc(1, GFP_KERNEL);
+],[
+ AC_DEFINE(HAVE_BITMAP_ALLOC, 1,
+ [Linux bitmap can be allocated])
+])
+]) # LIBCFS_BITMAP_ALLOC
+
+#
# LIBCFS_CLEAR_AND_WAKE_UP_BIT
#
# Kernel version 4.17-rc2 commit 8236b0ae31c837d2b3a2565c5f8d77f637e824cc
])])
]) # LIBCFS_CONFIG_CRYPTO_CRC32
+AC_DEFUN([LIBCFS_PROG_LINUX_SRC], [] )
+AC_DEFUN([LIBCFS_PROG_LINUX_RESULTS], [])
#
# LIBCFS_PROG_LINUX
LIBCFS_SHRINKER_COUNT
# 3.15
LIBCFS_IOV_ITER_HAS_TYPE
+# 3.16
+LIBCFS_HAVE_NS_TO_TIMESPEC64
# 3.17
LIBCFS_HLIST_ADD_AFTER
LIBCFS_TIMESPEC64
# 4.12
LIBCFS_HAVE_PROCESSOR_HEADER
LIBCFS_HAVE_WAIT_BIT_HEADER
+LIBCFS_MEMALLOC_NORECLAIM
LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
LIBCFS_CPUS_READ_LOCK
LIBCFS_UUID_T
# 4.16
LIBCFS_WAIT_VAR_EVENT
# 4.17
+LIBCFS_BITMAP_ALLOC
LIBCFS_CLEAR_AND_WAKE_UP_BIT
# 4.19
LIBCFS_XARRAY_SUPPORT