LU-17504 build: fix array-index-out-of-bounds warning

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

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 6b6c0fb..dbaeea3 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2360,6 +2360,27 @@ AC_DEFUN([LC_HAVE_FSMAP_HEADER], [
 ]) # LC_HAVE_FSMAP_HEADER
 
 #
+# LC_HAVE_PERCPU_COUNTER_ADD_BATCH
+#
+# Linux commit v4.11-12447-g104b4e5139fe
+#   percpu_counter: Rename __percpu_counter_add to percpu_counter_add_batch
+#
+AC_DEFUN([LC_SRC_HAVE_PERCPU_COUNTER_ADD_BATCH], [
+       LB2_LINUX_TEST_SRC([percpu_counter_add_batch_exists], [
+               #include <linux/percpu_counter.h>
+       ],[
+               (void)percpu_counter_add_batch(NULL, 0, 0);
+       ],[-Werror])
+])
+AC_DEFUN([LC_HAVE_PERCPU_COUNTER_ADD_BATCH], [
+       LB2_MSG_LINUX_TEST_RESULT([if 'percpu_counter_add_batch()' exists],
+       [percpu_counter_add_batch_exists], [
+               AC_DEFINE(HAVE_PERCPU_COUNTER_ADD_BATCH, 1,
+                       ['percpu_counter_add_batch()' exists])
+       ])
+]) # LC_HAVE_PERCPU_COUNTER_ADD_BATCH
+
+#
 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
 # CURRENT_TIME is not 64 bit time safe so it was replaced with
 # current_time()
@@ -4606,6 +4627,7 @@ AC_DEFUN([LC_PROG_LINUX_SRC], [
        LC_SRC_HAVE_KEY_USAGE_REFCOUNT
        LC_SRC_HAVE_CRYPTO_MAX_ALG_NAME_128
        LC_SRC_HAVE_FSMAP_HEADER
+       LC_SRC_HAVE_PERCPU_COUNTER_ADD_BATCH
 
        # 4.12
        LC_SRC_CURRENT_TIME
@@ -4903,6 +4925,7 @@ AC_DEFUN([LC_PROG_LINUX_RESULTS], [
        LC_HAVE_KEY_USAGE_REFCOUNT
        LC_HAVE_CRYPTO_MAX_ALG_NAME_128
        LC_HAVE_FSMAP_HEADER
+       LC_HAVE_PERCPU_COUNTER_ADD_BATCH
 
        # 4.12
        LC_CURRENT_TIME