Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-23 19:31:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

alpha: fix vmalloc breakage

Browse Source 
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>
This commit is contained in:
Ivan Kokshaysky 2009-01-15 13:50:48 -08:00 committed by Linus Torvalds
parent b46578ed09
commit 822c18f2e3
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
mm/vmalloc.c
View File

@ -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;
}