diff --git a/kmod/src/Makefile.kernelcompat b/kmod/src/Makefile.kernelcompat
index 9247b364..26e2aae5 100644
--- a/kmod/src/Makefile.kernelcompat
+++ b/kmod/src/Makefile.kernelcompat
@@ -6,15 +6,6 @@
 
 ccflags-y += -include $(src)/kernelcompat.h
 
-#
-# v4.11-4550-g7dea19f9ee63
-#
-# Introduced memalloc_nofs_{save,restore} preferred instead of _noio_.
-#
-ifneq (,$(shell grep 'memalloc_nofs_save' include/linux/sched/mm.h))
-ccflags-y += -DKC_MEMALLOC_NOFS_SAVE
-endif
-
 #
 # v4.7-12414-g1eff9d322a44
 #
diff --git a/kmod/src/kernelcompat.h b/kmod/src/kernelcompat.h
index be4c0857..67fea5a0 100644
--- a/kmod/src/kernelcompat.h
+++ b/kmod/src/kernelcompat.h
@@ -15,10 +15,6 @@
 #endif
 
 
-#ifndef KC_MEMALLOC_NOFS_SAVE
-#define memalloc_nofs_save memalloc_noio_save
-#define memalloc_nofs_restore memalloc_noio_restore
-#endif
 
 #ifdef KC_BIO_BI_OPF
 #define kc_bio_get_opf(bio)		\