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authorIvan Kokshaysky <ink@jurassic.park.msu.ru>2009-01-15 13:50:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-15 16:39:35 -0800
commit822c18f2e38cbc775792ab65ace4f9198678dec9 (patch)
tree3d14f9e7b479a786a87a481b8f429c753c5eb6fb /mm
parentb46578ed094122a6b36002c644711cef68aa9c9e (diff)
downloadlinux-822c18f2e38cbc775792ab65ace4f9198678dec9.tar.gz
alpha: fix vmalloc breakage
On alpha, we have to map some stuff in the VMALLOC space very early in the boot process (to make SRM console callbacks work and so on, see arch/alpha/mm/init.c). For old VM allocator, we just manually placed a vm_struct onto the global vmlist and this worked for ages. Unfortunately, the new allocator isn't aware of this, so it constantly tries to allocate the VM space which is already in use, making vmalloc on alpha defunct. This patch forces KVA to import vmlist entries on init. [akpm@linux-foundation.org: remove unneeded check (per Johannes)] Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Nick Piggin <npiggin@suse.de> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/vmalloc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index c5db9a7264d..7e00b280648 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -24,6 +24,7 @@
#include <linux/rbtree.h>
#include <linux/radix-tree.h>
#include <linux/rcupdate.h>
+#include <linux/bootmem.h>
#include <asm/atomic.h>
#include <asm/uaccess.h>
@@ -984,6 +985,8 @@ EXPORT_SYMBOL(vm_map_ram);
void __init vmalloc_init(void)
{
+ struct vmap_area *va;
+ struct vm_struct *tmp;
int i;
for_each_possible_cpu(i) {
@@ -996,6 +999,14 @@ void __init vmalloc_init(void)
vbq->nr_dirty = 0;
}
+ /* Import existing vmlist entries. */
+ for (tmp = vmlist; tmp; tmp = tmp->next) {
+ va = alloc_bootmem(sizeof(struct vmap_area));
+ va->flags = tmp->flags | VM_VM_AREA;
+ va->va_start = (unsigned long)tmp->addr;
+ va->va_end = va->va_start + tmp->size;
+ __insert_vmap_area(va);
+ }
vmap_initialized = true;
}