LU-14706 libcfs: ___wait_event() update for older kernels

[fs/lustre-release.git] / libcfs / autoconf / lustre-libcfs.m4

diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4
index b425654..b223340 100644 (file)
--- a/libcfs/autoconf/lustre-libcfs.m4
+++ b/libcfs/autoconf/lustre-libcfs.m4
@@ -197,6 +197,24 @@ shrinker_count_objects, [
 ]) # LIBCFS_SHRINKER_COUNT
 
 #
+# Kernel version 3.13 commit aace05097a0fd467230e39acb148be0fdaa90068
+# add match_wildcard() function.
+#
+AC_DEFUN([LIBCFS_MATCH_WILDCARD],[
+LB_CHECK_COMPILE([does function 'match_wildcard' exist],
+match_wildcard, [
+       #include <linux/parser.h>
+],[
+       bool match;
+
+       match = match_wildcard(NULL, NULL);
+],[
+       AC_DEFINE(HAVE_MATCH_WILDCARD, 1,
+               [match_wildcard() is available])
+])
+]) # LIBCFS_MATCH_WILDCARD
+
+#
 # LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
 #
 # v3.14-7405-g91b0abe36a7b added AS_EXITING flag with
@@ -999,6 +1017,30 @@ wait_queue_task_list, [
 ]) # LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
 
 #
+# LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
+#
+# Kernel version v4.12-rc6-23-g76c85ddc4695
+# sched/wait: Standardize wait_bit_queue naming
+#
+# renamed struct wait_bit_queue  => wait_bit_queue_entry
+#
+AC_DEFUN([LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS], [
+LB_CHECK_COMPILE([if struct wait_bit_queue_entry exists],
+struct_wait_bit_queue_entry_exists, [
+       #include <linux/wait.h>
+       #if HAVE_WAIT_BIT_HEADER_H
+               #include <linux/wait_bit.h>
+       #endif
+],[
+       struct wait_bit_queue_entry entry;
+       memset(&entry, 0, sizeof(entry));
+],[
+       AC_DEFINE(HAVE_WAIT_BIT_QUEUE_ENTRY, 1,
+               [if struct wait_bit_queue_entry exists])
+])
+]) # LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
+
+#
 # LIBCFS_NLA_STRDUP
 #
 # Kernel version 4.13-rc1 commit 2cf0c8b3e6942ecafe6ebb1a6d0328a81641bf39
@@ -1666,6 +1708,26 @@ LB_CHECK_LINUX_HEADER([crypto/sha2.h], [
                [crypto/sha2.h is present])])
 ]) # LIBCFS_HAVE_CRYPTO_SHA2_HEADER
 
+#
+# LIBCFS_HAVE_LIST_CMP_FUNC_T
+#
+# kernel 5.10.70 commit 4f0f586bf0c898233d8f316f471a21db2abd522d
+# treewide: Change list_sort to use const pointers
+AC_DEFUN([LIBCFS_HAVE_LIST_CMP_FUNC_T], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror -Wno-unused-variable"
+LB_CHECK_COMPILE([if list_cmp_func_t type is defined],
+list_cmp_func_t, [
+       #include <linux/list_sort.h>
+],[
+       list_cmp_func_t cmp;
+],[
+       AC_DEFINE(HAVE_LIST_CMP_FUNC_T, 1,
+               [list_cmp_func_t type is defined])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_HAVE_LIST_CMP_FUNC_T
+
 AC_DEFUN([LIBCFS_PROG_LINUX_SRC], [
        LIBCFS_SRC_HAVE_PROC_OPS
 
@@ -1679,6 +1741,24 @@ AC_DEFUN([LIBCFS_PROG_LINUX_RESULTS], [
 ])
 
 #
+# LIBCFS_PARAM_SET_UINT_MINMAX
+#
+# Kernel 5.15-rc1 commit 2a14c9ae15a38148484a128b84bff7e9ffd90d68
+# moved param_set_uint_minmax to common code
+#
+AC_DEFUN([LIBCFS_PARAM_SET_UINT_MINMAX],[
+LB_CHECK_COMPILE([does function 'param_set_uint_minmax' exist],
+param_set_uint_minmax, [
+       #include <linux/moduleparam.h>
+],[
+       param_set_uint_minmax(NULL, NULL, 0, 0);
+],[
+       AC_DEFINE(HAVE_PARAM_SET_UINT_MINMAX, 1,
+               ['param_set_uint_minmax' is available])
+])
+]) # LIBCFS_PARAM_SET_UINT_MINMAX
+
+#
 # LIBCFS_PROG_LINUX
 #
 # LibCFS linux kernel checks
@@ -1698,6 +1778,8 @@ LIBCFS_KTIME_AFTER
 LIBCFS_KTIME_BEFORE
 LIBCFS_KTIME_COMPARE
 LIBCFS_SHRINKER_COUNT
+# 3.13
+LIBCFS_MATCH_WILDCARD
 # 3.15
 LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
 LIBCFS_IOV_ITER_HAS_TYPE
@@ -1763,6 +1845,7 @@ LIBCFS_UUID_T
 # 4.13
 LIBCFS_NLA_STRDUP
 LIBCFS_WAIT_QUEUE_ENTRY
+LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
 # 4.14
 LIBCFS_DEFINE_TIMER
 LIBCFS_NEW_KERNEL_WRITE
@@ -1805,6 +1888,9 @@ LIBCFS_SEC_RELEASE_SECCTX
 # 5.10
 LIBCFS_HAVE_KFREE_SENSITIVE
 LIBCFS_HAVE_CRYPTO_SHA2_HEADER
+LIBCFS_HAVE_LIST_CMP_FUNC_T
+# 5.15
+LIBCFS_PARAM_SET_UINT_MINMAX
 ]) # LIBCFS_PROG_LINUX
 
 #