diff options
| author |   art <art@openbsd.org> | 2010-07-02 01:25:05 +0000 |
|---|---|---|
| committer | art <art@openbsd.org> | 2010-07-02 01:25:05 +0000 |
| commit | 42096da3ae4c342a82999d07ee4cdfde744caa0f (patch) | |
| tree | ea95543e8547ac6f46ec0a436995b369890079c0 /sys/kern/kern_fork.c | |
| parent | Drop the uvm_km_pages.mtx mutex in uvm_km_putpage before we free va's, (diff) | |
| download | wireguard-openbsd-42096da3ae4c342a82999d07ee4cdfde744caa0f.tar.xz wireguard-openbsd-42096da3ae4c342a82999d07ee4cdfde744caa0f.zip | |
add an align argument to uvm_km_kmemalloc_pla.
Use uvm_km_kmemalloc_pla with the dma constraint to allocate kernel stacks.
Yes, that means DMA is possible to kernel stacks, but only until we've fixed
all the scary drivers.
deraadt@ ok
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index 83989845b69..8e4674cb6bb 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_fork.c,v 1.118 2010/06/30 21:01:45 thib Exp $ */ +/* $OpenBSD: kern_fork.c,v 1.119 2010/07/02 01:25:05 art Exp $ */ /* $NetBSD: kern_fork.c,v 1.29 1996/02/09 18:59:34 christos Exp $ */ /* @@ -242,7 +242,9 @@ fork1(struct proc *p1, int exitsig, int flags, void *stack, size_t stacksize, return (EAGAIN); } - uaddr = uvm_km_alloc1(kernel_map, USPACE, USPACE_ALIGN, 1); + uaddr = uvm_km_kmemalloc_pla(kernel_map, uvm.kernel_object, USPACE, + USPACE_ALIGN, 0, dma_constraint.ucr_low, dma_constraint.ucr_high, + 0, 0, USPACE/PAGE_SIZE); if (uaddr == 0) { chgproccnt(uid, -1); nprocs--; |