[Xen-devel] [PATCH 08/21] memblock: drop __memblock_alloc_base()

[Mike Rapoport <rppt@xxxxxxxxxxxxx>]

The __memblock_alloc_base() function tries to allocate a memory up to the
limit specified by its max_addr parameter. Depending on the value of this
parameter, the __memblock_alloc_base() can is replaced with the appropriate
memblock_phys_alloc*() variant.

Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
---
 arch/sh/kernel/machine_kexec.c |  3 ++-
 arch/x86/kernel/e820.c         |  2 +-
 arch/x86/mm/numa.c             | 12 ++++--------
 drivers/of/of_reserved_mem.c   |  7 ++-----
 include/linux/memblock.h       |  2 --
 mm/memblock.c                  |  9 ++-------
 6 files changed, 11 insertions(+), 24 deletions(-)

diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index b9f9f1a..63d63a3 100644
--- a/arch/sh/kernel/machine_kexec.c
+++ b/arch/sh/kernel/machine_kexec.c
@@ -168,7 +168,8 @@ void __init reserve_crashkernel(void)
        crash_size = PAGE_ALIGN(resource_size(&crashk_res));
        if (!crashk_res.start) {
                unsigned long max = memblock_end_of_DRAM() - memory_limit;
-               crashk_res.start = __memblock_alloc_base(crash_size, PAGE_SIZE, 
max);
+               crashk_res.start = memblock_phys_alloc_range(crash_size,
+                                                            PAGE_SIZE, 0, max);
                if (!crashk_res.start) {
                        pr_err("crashkernel allocation failed\n");
                        goto disable;
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 50895c2..9c0eb54 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -778,7 +778,7 @@ u64 __init e820__memblock_alloc_reserved(u64 size, u64 
align)
 {
        u64 addr;
 
-       addr = __memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
+       addr = memblock_phys_alloc(size, align);
        if (addr) {
                e820__range_update_kexec(addr, size, E820_TYPE_RAM, 
E820_TYPE_RESERVED);
                pr_info("update e820_table_kexec for 
e820__memblock_alloc_reserved()\n");
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 1308f54..f85ae42 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -195,15 +195,11 @@ static void __init alloc_node_data(int nid)
         * Allocate node data.  Try node-local memory and then any node.
         * Never allocate in DMA zone.
         */
-       nd_pa = memblock_phys_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
+       nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
        if (!nd_pa) {
-               nd_pa = __memblock_alloc_base(nd_size, SMP_CACHE_BYTES,
-                                             MEMBLOCK_ALLOC_ACCESSIBLE);
-               if (!nd_pa) {
-                       pr_err("Cannot find %zu bytes in any node (initial 
node: %d)\n",
-                              nd_size, nid);
-                       return;
-               }
+               pr_err("Cannot find %zu bytes in any node (initial node: %d)\n",
+                      nd_size, nid);
+               return;
        }
        nd = __va(nd_pa);
 
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 1977ee0..499f16d 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -31,13 +31,10 @@ int __init __weak 
early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
        phys_addr_t *res_base)
 {
        phys_addr_t base;
-       /*
-        * We use __memblock_alloc_base() because memblock_alloc_base()
-        * panic()s on allocation failure.
-        */
+
        end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end;
        align = !align ? SMP_CACHE_BYTES : align;
-       base = __memblock_alloc_base(size, align, end);
+       base = memblock_phys_alloc_range(size, align, 0, end);
        if (!base)
                return -ENOMEM;
 
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 7883c74..768e2b4 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -496,8 +496,6 @@ static inline bool memblock_bottom_up(void)
 
 phys_addr_t memblock_alloc_base(phys_addr_t size, phys_addr_t align,
                                phys_addr_t max_addr);
-phys_addr_t __memblock_alloc_base(phys_addr_t size, phys_addr_t align,
-                                 phys_addr_t max_addr);
 phys_addr_t memblock_phys_mem_size(void);
 phys_addr_t memblock_reserved_size(void);
 phys_addr_t memblock_mem_size(unsigned long limit_pfn);
diff --git a/mm/memblock.c b/mm/memblock.c
index 461e40a3..e5ffdcd 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1363,17 +1363,12 @@ phys_addr_t __init memblock_phys_alloc_nid(phys_addr_t 
size, phys_addr_t align,
        return ret;
 }
 
-phys_addr_t __init __memblock_alloc_base(phys_addr_t size, phys_addr_t align, 
phys_addr_t max_addr)
-{
-       return memblock_alloc_range_nid(size, align, 0, max_addr, NUMA_NO_NODE,
-                                       MEMBLOCK_NONE);
-}
-
 phys_addr_t __init memblock_alloc_base(phys_addr_t size, phys_addr_t align, 
phys_addr_t max_addr)
 {
        phys_addr_t alloc;
 
-       alloc = __memblock_alloc_base(size, align, max_addr);
+       alloc = memblock_alloc_range_nid(size, align, 0, max_addr, NUMA_NO_NODE,
+                                       MEMBLOCK_NONE);
 
        if (alloc == 0)
                panic("ERROR: Failed to allocate %pa bytes below %pa.\n",
-- 
2.7.4


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