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mm/memory_hotplug: drop MHP_MEMBLOCK_API

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No longer needed, the callers of arch_add_memory() can handle this
manually.

Link: http://lkml.kernel.org/r/20190527111152.16324-9-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Wei Yang <richardw.yang@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Oscar Salvador <osalvador@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Arun KS <arunks@codeaurora.org>
Cc: Mathieu Malaterre <malat@debian.org>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Andrew Banman <andrew.banman@hpe.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chintan Pandya <cpandya@codeaurora.org>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jun Yao <yaojun8558363@gmail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: "mike.travis@hpe.com" <mike.travis@hpe.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Hildenbrand 2019-07-18 15:57:01 -07:00 • committed by Linus Torvalds
parent db051a0dac
commit 05f800a0bd
2 changed files with 3 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/linux/memory_hotplug.h
View file

@ -128,14 +128,6 @@ extern void arch_remove_memory(int nid, u64 start, u64 size,
extern void __remove_pages(struct zone *zone, unsigned long start_pfn, extern void __remove_pages(struct zone *zone, unsigned long start_pfn,
unsigned long nr_pages, struct vmem_altmap *altmap); unsigned long nr_pages, struct vmem_altmap *altmap);
/*
* Do we want sysfs memblock files created. This will allow userspace to online
* and offline memory explicitly. Lack of this bit means that the caller has to
* call move_pfn_range_to_zone to finish the initialization.
*/
#define MHP_MEMBLOCK_API (1<<0)
/* reasonably generic interface to expand the physical pages */ /* reasonably generic interface to expand the physical pages */
extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages, extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
struct mhp_restrictions *restrictions); struct mhp_restrictions *restrictions);

9
mm/memory_hotplug.c
View file

@ -251,7 +251,7 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat)
#endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */ #endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */
static int __meminit __add_section(int nid, unsigned long phys_start_pfn, static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
struct vmem_altmap *altmap, bool want_memblock) struct vmem_altmap *altmap)
{ {
int ret; int ret;
@ -294,8 +294,7 @@ int __ref __add_pages(int nid, unsigned long phys_start_pfn,
} }
for (i = start_sec; i <= end_sec; i++) { for (i = start_sec; i <= end_sec; i++) {
err = __add_section(nid, section_nr_to_pfn(i), altmap, err = __add_section(nid, section_nr_to_pfn(i), altmap);
restrictions->flags & MHP_MEMBLOCK_API);
/* /*
* EEXIST is finally dealt with by ioresource collision * EEXIST is finally dealt with by ioresource collision
@ -1065,9 +1064,7 @@ static int online_memory_block(struct memory_block *mem, void *arg)
*/ */
int __ref add_memory_resource(int nid, struct resource *res) int __ref add_memory_resource(int nid, struct resource *res)
{ {
struct mhp_restrictions restrictions = { struct mhp_restrictions restrictions = {};
.flags = MHP_MEMBLOCK_API,
};
u64 start, size; u64 start, size;
bool new_node = false; bool new_node = false;
int ret; int ret;