LU-4416 mm: Backport shrinker changes from upstream

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

diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4
index ac5c413..81c6d7f 100644 (file)
--- a/libcfs/autoconf/lustre-libcfs.m4
+++ b/libcfs/autoconf/lustre-libcfs.m4
@@ -290,6 +290,22 @@ No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c
 ]) # LIBCFS_ENABLE_CRC32C_ACCEL
 
 #
+# FC19 3.12 kernel struct shrinker change
+#
+AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
+LB_CHECK_COMPILE([shrinker has 'count_objects'],
+shrinker_count_objects, [
+       #include <linux/mmzone.h>
+       #include <linux/shrinker.h>
+],[
+       ((struct shrinker*)0)->count_objects(NULL, NULL);
+],[
+       AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
+               [shrinker has count_objects memeber])
+])
+])
+
+#
 # LIBCFS_PROG_LINUX
 #
 # LibCFS linux kernel checks
@@ -324,6 +340,8 @@ LIBCFS_HAVE_CRC32
 LIBCFS_ENABLE_CRC32_ACCEL
 # 3.10
 LIBCFS_ENABLE_CRC32C_ACCEL
+# 3.12
+LIBCFS_SHRINKER_COUNT
 ]) # LIBCFS_PROG_LINUX
 
 #