]) # LIBCFS_FORCE_SIG_WITH_TASK
#
+# LIBCFS_CACHE_DETAIL_WRITERS
+#
+# kernel v5.3-rc2-1-g64a38e840ce5
+# SUNRPC: Track writers of the 'channel' file to improve cache_listeners_exist
+#
+AC_DEFUN([LIBCFS_CACHE_DETAIL_WRITERS], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if struct cache_detail has writers],
+cache_detail_writers_atomic, [
+ #include <linux/sunrpc/cache.h>
+
+ static struct cache_detail rsi_cache;
+],[
+ atomic_set(&rsi_cache.writers, 0);
+],[
+ AC_DEFINE(HAVE_CACHE_DETAIL_WRITERS, 1,
+ [struct cache_detail has writers])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_CACHE_DETAIL_WRITERS
+
+#
# LIBCFS_PROG_LINUX
#
# LibCFS linux kernel checks
LIBCFS_MM_TOTALRAM_PAGES_FUNC
# 5.3
LIBCFS_FORCE_SIG_WITH_TASK
+LIBCFS_CACHE_DETAIL_WRITERS
]) # LIBCFS_PROG_LINUX
#