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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 
hugetlbfs: make hugepage size conversion more readable
 
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
Raw File
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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