LU-13258 libcfs: make apply_workqueue_attrs() available for Lustre

[fs/lustre-release.git] / libcfs / libcfs / linux / linux-prim.c

diff --git a/libcfs/libcfs/linux/linux-prim.c b/libcfs/libcfs/linux/linux-prim.c
index f54a5f9..1f29c52 100644 (file)
--- a/libcfs/libcfs/linux/linux-prim.c
+++ b/libcfs/libcfs/linux/linux-prim.c
@@ -31,6 +31,8 @@
  */
 
 #define DEBUG_SUBSYSTEM S_LNET
+
+#include <linux/kallsyms.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/fs.h>
@@ -102,6 +104,27 @@ time64_t ktime_get_seconds(void)
 EXPORT_SYMBOL(ktime_get_seconds);
 #endif /* HAVE_KTIME_GET_SECONDS */
 
+static int (*cfs_apply_workqueue_attrs_t)(struct workqueue_struct *wq,
+                                         const struct workqueue_attrs *attrs);
+
+int cfs_apply_workqueue_attrs(struct workqueue_struct *wq,
+                             const struct workqueue_attrs *attrs)
+{
+       return cfs_apply_workqueue_attrs_t(wq, attrs);
+}
+EXPORT_SYMBOL_GPL(cfs_apply_workqueue_attrs);
+
+struct kmem_cache (*cfs_radix_tree_node_cachep);
+
+void cfs_arch_init(void)
+{
+#ifndef HAVE_WAIT_VAR_EVENT
+       wait_bit_init();
+#endif
+       cfs_apply_workqueue_attrs_t =
+               (void *)kallsyms_lookup_name("apply_workqueue_attrs");
+}
+
 int cfs_kernel_write(struct file *filp, const void *buf, size_t count,
                     loff_t *pos)
 {