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| author |   Michal Hocko <mhocko@suse.com> | 2019-05-13 17:21:26 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:49 -0700 |
| commit | 940519f0c8b757fdcbc5d14c93cdaada20ded14c (patch) | |
| tree | b6b39399a9ef9914e8c2902b6ffe300d52531913 /arch/arm64 | |
| parent | mm, memory_hotplug: cleanup memory offline path (diff) | |
| download | linux-dev-940519f0c8b757fdcbc5d14c93cdaada20ded14c.tar.xz linux-dev-940519f0c8b757fdcbc5d14c93cdaada20ded14c.zip | |
mm, memory_hotplug: provide a more generic restrictions for memory hotplug
arch_add_memory, __add_pages take a want_memblock which controls whether
the newly added memory should get the sysfs memblock user API (e.g.
ZONE_DEVICE users do not want/need this interface). Some callers even
want to control where do we allocate the memmap from by configuring
altmap.
Add a more generic hotplug context for arch_add_memory and __add_pages.
struct mhp_restrictions contains flags which contains additional features
to be enabled by the memory hotplug (MHP_MEMBLOCK_API currently) and
altmap for alternative memmap allocator.
This patch shouldn't introduce any functional change.
[akpm@linux-foundation.org: build fix]
Link: http://lkml.kernel.org/r/20190408082633.2864-3-osalvador@suse.de
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/mm/mmu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index ef82312860ac..ef32d4839c3f 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1065,8 +1065,8 @@ int p4d_free_pud_page(p4d_t *p4d, unsigned long addr) } #ifdef CONFIG_MEMORY_HOTPLUG -int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, - bool want_memblock) +int arch_add_memory(int nid, u64 start, u64 size, + struct mhp_restrictions *restrictions) { int flags = 0; @@ -1077,6 +1077,6 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, size, PAGE_KERNEL, __pgd_pgtable_alloc, flags); return __add_pages(nid, start >> PAGE_SHIFT, size >> PAGE_SHIFT, - altmap, want_memblock); + restrictions); } #endif |