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o Eliminate the acquisition and release of Giant from minherit(2).

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(vm_map_inherit() no longer requires Giant to be held.)
This commit is contained in:
Alan Cox 2002-05-18 18:59:00 +00:00
parent e116910b8d
commit e0be79afbf
1 changed files with 2 additions and 7 deletions
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9
sys/vm/vm_mmap.c
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@ -698,7 +698,6 @@ minherit(td, uap)
vm_offset_t addr;
vm_size_t size, pageoff;
vm_inherit_t inherit;
int ret;
addr = (vm_offset_t)uap->addr;
size = uap->len;
@ -711,12 +710,8 @@ minherit(td, uap)
if (addr + size < addr)
return (EINVAL);
mtx_lock(&Giant);
ret = vm_map_inherit(&td->td_proc->p_vmspace->vm_map, addr, addr+size,
inherit);
mtx_unlock(&Giant);
switch (ret) {
switch (vm_map_inherit(&td->td_proc->p_vmspace->vm_map, addr,
addr + size, inherit)) {
case KERN_SUCCESS:
return (0);
case KERN_PROTECTION_FAILURE: