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authorArnd Bergmann <arnd@arndb.de>2012-01-09 16:01:00 +0000
committerArnd Bergmann <arnd@arndb.de>2012-01-09 16:01:00 +0000
commita07613a54d700a974f3a4a657da78ef5d097315d (patch)
treee4bc91713e02fa6d8f08b07de53ea8f905593dfa /mm/vmalloc.c
parent65db039bf7402f0a5b19cbf6dcff55ebea433b8b (diff)
parent928a11ba36f999436915ea2b1eadf54301f93059 (diff)
Merge branch 'samsung/dt' into samsung/cleanup
Conflicts: arch/arm/mach-s3c64xx/Makefile arch/arm/mach-s5pc100/Makefile arch/arm/mach-s5pv210/Makefile Pull in previously resolved conflicts: The Makefiles were reorganized in the "rmk/restart" series and modified in the "samsung/cleanup series". This also pulls in the other conflict resolutions from the restart series against the samsung/dt series. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r--mm/vmalloc.c31
1 files changed, 28 insertions, 3 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 1d8b32f0713..21fdf46ad5a 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1118,6 +1118,32 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node, pgprot_t pro
EXPORT_SYMBOL(vm_map_ram);
/**
+ * vm_area_add_early - add vmap area early during boot
+ * @vm: vm_struct to add
+ *
+ * This function is used to add fixed kernel vm area to vmlist before
+ * vmalloc_init() is called. @vm->addr, @vm->size, and @vm->flags
+ * should contain proper values and the other fields should be zero.
+ *
+ * DO NOT USE THIS FUNCTION UNLESS YOU KNOW WHAT YOU'RE DOING.
+ */
+void __init vm_area_add_early(struct vm_struct *vm)
+{
+ struct vm_struct *tmp, **p;
+
+ BUG_ON(vmap_initialized);
+ for (p = &vmlist; (tmp = *p) != NULL; p = &tmp->next) {
+ if (tmp->addr >= vm->addr) {
+ BUG_ON(tmp->addr < vm->addr + vm->size);
+ break;
+ } else
+ BUG_ON(tmp->addr + tmp->size > vm->addr);
+ }
+ vm->next = *p;
+ *p = vm;
+}
+
+/**
* vm_area_register_early - register vmap area early during boot
* @vm: vm_struct to register
* @align: requested alignment
@@ -1139,8 +1165,7 @@ void __init vm_area_register_early(struct vm_struct *vm, size_t align)
vm->addr = (void *)addr;
- vm->next = vmlist;
- vmlist = vm;
+ vm_area_add_early(vm);
}
void __init vmalloc_init(void)
@@ -1290,7 +1315,7 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
unsigned long align, unsigned long flags, unsigned long start,
unsigned long end, int node, gfp_t gfp_mask, void *caller)
{
- static struct vmap_area *va;
+ struct vmap_area *va;
struct vm_struct *area;
BUG_ON(in_interrupt());