forked from Minki/linux
mm: nobootmem: remove bootmem allocation APIs
The bootmem compatibility APIs are not used and can be removed. Link: http://lkml.kernel.org/r/1536927045-23536-23-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Rapoport
Linus Torvalds
parent
2a5bda5a62
commit
6c7835f8d0
@ -36,33 +36,6 @@ extern void free_bootmem_node(pg_data_t *pgdat,
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extern void free_bootmem(unsigned long physaddr, unsigned long size);
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extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
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extern void *__alloc_bootmem(unsigned long size,
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unsigned long align,
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unsigned long goal);
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extern void *__alloc_bootmem_nopanic(unsigned long size,
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unsigned long align,
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unsigned long goal) __malloc;
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extern void *__alloc_bootmem_node(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal) __malloc;
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void *__alloc_bootmem_node_high(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal) __malloc;
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extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal) __malloc;
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void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal,
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unsigned long limit) __malloc;
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extern void *__alloc_bootmem_low(unsigned long size,
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unsigned long align,
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unsigned long goal) __malloc;
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/* We are using top down, so it is safe to use 0 here */
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#define BOOTMEM_LOW_LIMIT 0
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@ -70,26 +43,6 @@ extern void *__alloc_bootmem_low(unsigned long size,
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#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
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#endif
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#define alloc_bootmem(x) \
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__alloc_bootmem(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_align(x, align) \
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__alloc_bootmem(x, align, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_pages(x) \
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__alloc_bootmem(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_pages_nopanic(x) \
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__alloc_bootmem_nopanic(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_node(pgdat, x) \
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__alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_node_nopanic(pgdat, x) \
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__alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_pages_node(pgdat, x) \
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__alloc_bootmem_node(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
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#define alloc_bootmem_low(x) \
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__alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
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#define alloc_bootmem_low_pages(x) \
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__alloc_bootmem_low(x, PAGE_SIZE, 0)
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/* FIXME: use MEMBLOCK_ALLOC_* variants here */
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#define BOOTMEM_ALLOC_ACCESSIBLE 0
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#define BOOTMEM_ALLOC_ANYWHERE (~(phys_addr_t)0)
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224
mm/nobootmem.c
224
mm/nobootmem.c
@ -33,41 +33,6 @@ unsigned long min_low_pfn;
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unsigned long max_pfn;
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unsigned long long max_possible_pfn;
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static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
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u64 goal, u64 limit)
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{
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void *ptr;
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u64 addr;
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enum memblock_flags flags = choose_memblock_flags();
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if (limit > memblock.current_limit)
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limit = memblock.current_limit;
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again:
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addr = memblock_find_in_range_node(size, align, goal, limit, nid,
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flags);
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if (!addr && (flags & MEMBLOCK_MIRROR)) {
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flags &= ~MEMBLOCK_MIRROR;
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pr_warn("Could not allocate %pap bytes of mirrored memory\n",
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&size);
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goto again;
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}
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if (!addr)
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return NULL;
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if (memblock_reserve(addr, size))
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return NULL;
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ptr = phys_to_virt(addr);
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memset(ptr, 0, size);
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/*
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* The min_count is set to 0 so that bootmem allocated blocks
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* are never reported as leaks.
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*/
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kmemleak_alloc(ptr, size, 0, 0);
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return ptr;
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}
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/**
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* free_bootmem_late - free bootmem pages directly to page allocator
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* @addr: starting address of the range
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@ -215,192 +180,3 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
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{
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memblock_free(addr, size);
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}
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static void * __init ___alloc_bootmem_nopanic(unsigned long size,
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unsigned long align,
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unsigned long goal,
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unsigned long limit)
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{
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void *ptr;
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if (WARN_ON_ONCE(slab_is_available()))
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return kzalloc(size, GFP_NOWAIT);
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restart:
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ptr = __alloc_memory_core_early(NUMA_NO_NODE, size, align, goal, limit);
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if (ptr)
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return ptr;
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if (goal != 0) {
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goal = 0;
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goto restart;
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}
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return NULL;
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}
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/**
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* __alloc_bootmem_nopanic - allocate boot memory without panicking
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* @size: size of the request in bytes
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* @align: alignment of the region
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* @goal: preferred starting address of the region
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*
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* The goal is dropped if it can not be satisfied and the allocation will
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* fall back to memory below @goal.
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*
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* Allocation may happen on any node in the system.
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*
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* Return: address of the allocated region or %NULL on failure.
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*/
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void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align,
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unsigned long goal)
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{
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unsigned long limit = -1UL;
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return ___alloc_bootmem_nopanic(size, align, goal, limit);
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}
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static void * __init ___alloc_bootmem(unsigned long size, unsigned long align,
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unsigned long goal, unsigned long limit)
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{
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void *mem = ___alloc_bootmem_nopanic(size, align, goal, limit);
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if (mem)
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return mem;
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/*
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* Whoops, we cannot satisfy the allocation request.
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*/
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pr_alert("bootmem alloc of %lu bytes failed!\n", size);
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panic("Out of memory");
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return NULL;
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}
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/**
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* __alloc_bootmem - allocate boot memory
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* @size: size of the request in bytes
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* @align: alignment of the region
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* @goal: preferred starting address of the region
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*
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* The goal is dropped if it can not be satisfied and the allocation will
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* fall back to memory below @goal.
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*
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* Allocation may happen on any node in the system.
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*
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* The function panics if the request can not be satisfied.
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*
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* Return: address of the allocated region.
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*/
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void * __init __alloc_bootmem(unsigned long size, unsigned long align,
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unsigned long goal)
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{
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unsigned long limit = -1UL;
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return ___alloc_bootmem(size, align, goal, limit);
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}
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void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
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unsigned long size,
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unsigned long align,
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unsigned long goal,
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unsigned long limit)
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{
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void *ptr;
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again:
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ptr = __alloc_memory_core_early(pgdat->node_id, size, align,
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goal, limit);
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if (ptr)
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return ptr;
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ptr = __alloc_memory_core_early(NUMA_NO_NODE, size, align,
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goal, limit);
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if (ptr)
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return ptr;
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if (goal) {
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goal = 0;
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goto again;
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}
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return NULL;
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}
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void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size,
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unsigned long align, unsigned long goal)
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{
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if (WARN_ON_ONCE(slab_is_available()))
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return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
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return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0);
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}
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static void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
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unsigned long align, unsigned long goal,
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unsigned long limit)
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{
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void *ptr;
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ptr = ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, limit);
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if (ptr)
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return ptr;
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pr_alert("bootmem alloc of %lu bytes failed!\n", size);
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panic("Out of memory");
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return NULL;
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}
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/**
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* __alloc_bootmem_node - allocate boot memory from a specific node
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* @pgdat: node to allocate from
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* @size: size of the request in bytes
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* @align: alignment of the region
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* @goal: preferred starting address of the region
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*
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* The goal is dropped if it can not be satisfied and the allocation will
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* fall back to memory below @goal.
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*
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* Allocation may fall back to any node in the system if the specified node
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* can not hold the requested memory.
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*
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* The function panics if the request can not be satisfied.
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*
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* Return: address of the allocated region.
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*/
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void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size,
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unsigned long align, unsigned long goal)
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{
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if (WARN_ON_ONCE(slab_is_available()))
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return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
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return ___alloc_bootmem_node(pgdat, size, align, goal, 0);
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}
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void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
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unsigned long align, unsigned long goal)
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{
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return __alloc_bootmem_node(pgdat, size, align, goal);
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}
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/**
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* __alloc_bootmem_low - allocate low boot memory
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* @size: size of the request in bytes
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* @align: alignment of the region
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* @goal: preferred starting address of the region
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*
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* The goal is dropped if it can not be satisfied and the allocation will
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* fall back to memory below @goal.
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*
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* Allocation may happen on any node in the system.
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*
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* The function panics if the request can not be satisfied.
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*
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* Return: address of the allocated region.
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*/
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void * __init __alloc_bootmem_low(unsigned long size, unsigned long align,
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unsigned long goal)
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{
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return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
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}
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