Revision a25fddced835ae53d18eb4bddabd719b4cebf624 authored by Miaohe Lin on 24 February 2021, 20:10:14 UTC, committed by Linus Torvalds on 24 February 2021, 21:38:35 UTC
The calculation 1U << (h->order + PAGE_SHIFT - 10) is actually equal to (PAGE_SHIFT << (h->order)) >> 10. So we can make it more readable by replace it with huge_page_size(h) >> 10. Link: https://lkml.kernel.org/r/20210122083141.24548-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 88ce3fe
Makefile.userprogs
# SPDX-License-Identifier: GPL-2.0-only
#
# Build userspace programs for the target system
#
# Executables compiled from a single .c file
user-csingle := $(foreach m, $(userprogs), $(if $($(m)-objs),,$(m)))
# Executables linked based on several .o files
user-cmulti := $(foreach m, $(userprogs), $(if $($(m)-objs),$(m)))
# Objects compiled from .c files
user-cobjs := $(sort $(foreach m, $(userprogs), $($(m)-objs)))
user-csingle := $(addprefix $(obj)/, $(user-csingle))
user-cmulti := $(addprefix $(obj)/, $(user-cmulti))
user-cobjs := $(addprefix $(obj)/, $(user-cobjs))
user_ccflags = -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \
$($(target-stem)-userccflags)
user_ldflags = $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags)
# Create an executable from a single .c file
quiet_cmd_user_cc_c = CC [U] $@
cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \
$($(target-stem)-userldlibs)
$(user-csingle): $(obj)/%: $(src)/%.c FORCE
$(call if_changed_dep,user_cc_c)
# Link an executable based on list of .o files
quiet_cmd_user_ld = LD [U] $@
cmd_user_ld = $(CC) $(user_ldflags) -o $@ \
$(addprefix $(obj)/, $($(target-stem)-objs)) \
$($(target-stem)-userldlibs)
$(user-cmulti): FORCE
$(call if_changed,user_ld)
$(call multi_depend, $(user-cmulti), , -objs)
# Create .o file from a .c file
quiet_cmd_user_cc_o_c = CC [U] $@
cmd_user_cc_o_c = $(CC) $(user_ccflags) -c -o $@ $<
$(user-cobjs): $(obj)/%.o: $(src)/%.c FORCE
$(call if_changed_dep,user_cc_o_c)
targets += $(user-csingle) $(user-cmulti) $(user-cobjs)
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