Commit 2dfec887 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: reduce the number of mkdir calls during modules_install 



Calling 'mkdir' for every module results in redundant syscalls.

Use $(sort ...) to drop the duplicated directories.

Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
Reviewed-by: default avatarNicolas Schier <nicolas@fjasle.eu>
parent d8131c29

scripts/Makefile.modinst

+7 −1
Original line number Diff line number Diff line
@@ -9,6 +9,8 @@ __modinst: 
include include/config/auto.conf

include $(srctree)/scripts/Kbuild.include



install-y :=



modules := $(call read-file, $(MODORDER))



ifeq ($(KBUILD_EXTMOD),)
@@ -27,6 +29,7 @@ suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz 
suffix-$(CONFIG_MODULE_COMPRESS_ZSTD)	:= .zst



modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))

install-$(CONFIG_MODULES) += $(modules)



__modinst: $(modules)

	@:
@@ -35,7 +38,7 @@ __modinst: $(modules) 
# Installation

#

quiet_cmd_install = INSTALL $@

      cmd_install = mkdir -p $(dir $@); cp $< $@

      cmd_install = cp $< $@



# Strip

#
@@ -81,6 +84,9 @@ endif 


ifeq ($(modules_sign_only),)



# Create necessary directories

$(shell mkdir -p $(sort $(dir $(install-y))))



$(dst)/%.ko: $(extmod_prefix)%.ko FORCE

	$(call cmd,install)

	$(call cmd,strip)