Eric Lee / linux-smarc-t335x-v3.2

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Commit dd0932d9d4301bd58a4d5a634a3a8298c4fc5e24

Authored by Yasunori Goto
Committed by Linus Torvalds
1 parent 7049027c6f
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

[PATCH] pgdat allocation and update for ia64 of memory hotplug: allocate pgdat and per node data 

This is a patch to allocate pgdat and per node data area for ia64.  The size
for them can be calculated by compute_pernodesize().

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Showing 2 changed files with 16 additions and 9 deletions Side-by-side Diff

arch/ia64/mm/discontig.c
Diff comments   View file @ dd0932d
... ... @@ -100,7 +100,7 @@
100 100 * acpi_boot_init() (which builds the node_to_cpu_mask array) hasn't been
101 101 * called yet. Note that node 0 will also count all non-existent cpus.
102 102 */
103   -static int __init early_nr_cpus_node(int node)
  103 +static int __meminit early_nr_cpus_node(int node)
104 104 {
105 105 int cpu, n = 0;
106 106  
... ... @@ -115,7 +115,7 @@
115 115 * compute_pernodesize - compute size of pernode data
116 116 * @node: the node id.
117 117 */
118   -static unsigned long __init compute_pernodesize(int node)
  118 +static unsigned long __meminit compute_pernodesize(int node)
119 119 {
120 120 unsigned long pernodesize = 0, cpus;
121 121  
... ... @@ -790,6 +790,18 @@
790 790 }
791 791  
792 792 zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
  793 +}
  794 +
  795 +pg_data_t *arch_alloc_nodedata(int nid)
  796 +{
  797 + unsigned long size = compute_pernodesize(nid);
  798 +
  799 + return kzalloc(size, GFP_KERNEL);
  800 +}
  801 +
  802 +void arch_free_nodedata(pg_data_t *pgdat)
  803 +{
  804 + kfree(pgdat);
793 805 }
794 806  
795 807 void arch_refresh_nodedata(int update_node, pg_data_t *update_pgdat)
include/linux/memory_hotplug.h
Diff comments   View file @ dd0932d
... ... @@ -84,13 +84,8 @@
84 84 * Now, arch_free_nodedata() is just defined for error path of node_hot_add.
85 85 *
86 86 */
87   -static inline pg_data_t *arch_alloc_nodedata(int nid)
88   -{
89   - return NULL;
90   -}
91   -static inline void arch_free_nodedata(pg_data_t *pgdat)
92   -{
93   -}
  87 +extern pg_data_t *arch_alloc_nodedata(int nid);
  88 +extern void arch_free_nodedata(pg_data_t *pgdat);
94 89 extern void arch_refresh_nodedata(int nid, pg_data_t *pgdat);
95 90  
96 91 #else /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */