[patch 10/30] cpu alloc: crash_notes conversion

Christoph Lameter
2007-11-16T23:15:58Z

[-- Attachment #1: 0020-cpu-alloc-crash_notes-conversion.patch --]
[-- Type: text/plain, Size: 2331 bytes --]

Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
arch/ia64/kernel/crash.c | 2 +-
drivers/base/cpu.c | 2 +-
kernel/kexec.c | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)

Index: linux-2.6/arch/ia64/kernel/crash.c
===================================================================
--- linux-2.6.orig/arch/ia64/kernel/crash.c 2007-11-15 21:18:10.647904573 -0800
+++ linux-2.6/arch/ia64/kernel/crash.c 2007-11-15 21:25:29.423155123 -0800
@@ -71,7 +71,7 @@ crash_save_this_cpu(void)
dst[46] = (unsigned long)ia64_rse_skip_regs((unsigned long *)dst[46],
sof - sol);

- buf = (u64 *) per_cpu_ptr(crash_notes, cpu);
+ buf = (u64 *) CPU_PTR(crash_notes, cpu);
if (!buf)
return;
buf = append_elf_note(buf, KEXEC_CORE_NOTE_NAME, NT_PRSTATUS, prstatus,
Index: linux-2.6/drivers/base/cpu.c
===================================================================
--- linux-2.6.orig/drivers/base/cpu.c 2007-11-15 21:18:10.655904442 -0800
+++ linux-2.6/drivers/base/cpu.c 2007-11-15 21:25:29.423155123 -0800
@@ -95,7 +95,7 @@ static ssize_t show_crash_notes(struct s
* boot up and this data does not change there after. Hence this
* operation should be safe. No locking required.
*/
- addr = __pa(per_cpu_ptr(crash_notes, cpunum));
+ addr = __pa(CPU_PTR(crash_notes, cpunum));
rc = sprintf(buf, "%Lx\n", addr);
return rc;
}
Index: linux-2.6/kernel/kexec.c
===================================================================
--- linux-2.6.orig/kernel/kexec.c 2007-11-15 21:18:10.663904549 -0800
+++ linux-2.6/kernel/kexec.c 2007-11-15 21:25:29.423155123 -0800
@@ -1122,7 +1122,7 @@ void crash_save_cpu(struct pt_regs *regs
* squirrelled away. ELF notes happen to provide
* all of that, so there is no need to invent something new.
*/
- buf = (u32*)per_cpu_ptr(crash_notes, cpu);
+ buf = (u32*)CPU_PTR(crash_notes, cpu);
if (!buf)
return;
memset(&prstatus, 0, sizeof(prstatus));
@@ -1136,7 +1136,7 @@ void crash_save_cpu(struct pt_regs *regs
static int __init crash_notes_memory_init(void)
{
/* Allocate memory for saving cpu registers. */
- crash_notes = alloc_percpu(note_buf_t);
+ crash_notes = CPU_ALLOC(note_buf_t, GFP_KERNEL|__GFP_ZERO);
if (!crash_notes) {
printk("Kexec: Memory allocation for saving cpu register"
" states failed\n");

--