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authorJeff Dike <jdike@addtoit.com>2007-10-16 01:26:47 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:05 -0700
commit6d536e4b59f77c34a0e5a414dfa934db373c85c2 (patch)
tree5df1165c69ace49c6158073e1e3edf22597829f7 /arch
parent42daba316557e597a90a730f61c762602b7f0e0c (diff)
uml: physmem code tidying
Tidying of the UML physical memory system. These are mostly style fixes, however the includes were cleaned as well. This uncovered a need for mem_user.h to be included in mode_kern_skas.h. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/um/include/skas/mode_kern_skas.h3
-rw-r--r--arch/um/kernel/physmem.c50
2 files changed, 23 insertions, 30 deletions
diff --git a/arch/um/include/skas/mode_kern_skas.h b/arch/um/include/skas/mode_kern_skas.h
index 8ee6285dfacc..c29485109a9a 100644
--- a/arch/um/include/skas/mode_kern_skas.h
+++ b/arch/um/include/skas/mode_kern_skas.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com)
* Licensed under the GPL
*/
@@ -9,6 +9,7 @@
#include "linux/sched.h"
#include "asm/page.h"
#include "asm/ptrace.h"
+#include "mem_user.h"
extern void flush_thread_skas(void);
extern void switch_to_skas(void *prev, void *next);
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 8aeac4d93511..fb695e48fad7 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -1,25 +1,17 @@
/*
- * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
-#include "linux/mm.h"
-#include "linux/rbtree.h"
-#include "linux/slab.h"
-#include "linux/vmalloc.h"
#include "linux/bootmem.h"
-#include "linux/module.h"
+#include "linux/mm.h"
#include "linux/pfn.h"
-#include "asm/types.h"
-#include "asm/pgtable.h"
-#include "kern_util.h"
+#include "asm/page.h"
#include "as-layout.h"
+#include "init.h"
+#include "kern.h"
#include "mode_kern.h"
-#include "mem.h"
-#include "mem_user.h"
#include "os.h"
-#include "kern.h"
-#include "init.h"
static int physmem_fd = -1;
@@ -49,10 +41,10 @@ int __init init_maps(unsigned long physmem, unsigned long iomem,
total_len = phys_len + iomem_len + highmem_len;
map = alloc_bootmem_low_pages(total_len);
- if(map == NULL)
+ if (map == NULL)
return -ENOMEM;
- for(i = 0; i < total_pages; i++){
+ for (i = 0; i < total_pages; i++) {
p = &map[i];
memset(p, 0, sizeof(struct page));
SetPageReserved(p);
@@ -68,7 +60,7 @@ static unsigned long kmem_top = 0;
unsigned long get_kmem_end(void)
{
- if(kmem_top == 0)
+ if (kmem_top == 0)
kmem_top = CHOOSE_MODE(kmem_end_tt, kmem_end_skas);
return kmem_top;
}
@@ -81,8 +73,8 @@ void map_memory(unsigned long virt, unsigned long phys, unsigned long len,
fd = phys_mapping(phys, &offset);
err = os_map_memory((void *) virt, fd, offset, len, r, w, x);
- if(err) {
- if(err == -ENOMEM)
+ if (err) {
+ if (err == -ENOMEM)
printk("try increasing the host's "
"/proc/sys/vm/max_map_count to <physical "
"memory size>/4096\n");
@@ -106,7 +98,7 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
offset = uml_reserved - uml_physmem;
err = os_map_memory((void *) uml_reserved, physmem_fd, offset,
len - offset, 1, 1, 1);
- if(err < 0){
+ if (err < 0) {
os_print_error(err, "Mapping memory");
exit(1);
}
@@ -126,16 +118,16 @@ int phys_mapping(unsigned long phys, __u64 *offset_out)
{
int fd = -1;
- if(phys < physmem_size){
+ if (phys < physmem_size) {
fd = physmem_fd;
*offset_out = phys;
}
- else if(phys < __pa(end_iomem)){
+ else if (phys < __pa(end_iomem)) {
struct iomem_region *region = iomem_regions;
- while(region != NULL){
- if((phys >= region->phys) &&
- (phys < region->phys + region->size)){
+ while (region != NULL) {
+ if ((phys >= region->phys) &&
+ (phys < region->phys + region->size)) {
fd = region->fd;
*offset_out = phys - region->phys;
break;
@@ -143,7 +135,7 @@ int phys_mapping(unsigned long phys, __u64 *offset_out)
region = region->next;
}
}
- else if(phys < __pa(end_iomem) + highmem){
+ else if (phys < __pa(end_iomem) + highmem) {
fd = physmem_fd;
*offset_out = phys - iomem_size;
}
@@ -188,8 +180,8 @@ unsigned long find_iomem(char *driver, unsigned long *len_out)
{
struct iomem_region *region = iomem_regions;
- while(region != NULL){
- if(!strcmp(region->driver, driver)){
+ while (region != NULL) {
+ if (!strcmp(region->driver, driver)) {
*len_out = region->size;
return region->virt;
}
@@ -206,10 +198,10 @@ int setup_iomem(void)
unsigned long iomem_start = high_physmem + PAGE_SIZE;
int err;
- while(region != NULL){
+ while (region != NULL) {
err = os_map_memory((void *) iomem_start, region->fd, 0,
region->size, 1, 1, 0);
- if(err)
+ if (err)
printk("Mapping iomem region for driver '%s' failed, "
"errno = %d\n", region->driver, -err);
else {

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