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Reduce the scope of Giant in swap_pager_alloc().

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This commit is contained in:
Alan Cox 2004-01-03 20:02:17 +00:00
parent e342346255
commit e793b7797d
1 changed files with 2 additions and 2 deletions
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4
sys/vm/swap_pager.c
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@ -473,8 +473,8 @@ swap_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
{
vm_object_t object;
mtx_lock(&Giant);
if (handle) {
mtx_lock(&Giant);
/*
* Reference existing named region or allocate new one. There
* should not be a race here against swp_pager_meta_build()
@ -496,6 +496,7 @@ swap_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
VM_OBJECT_UNLOCK(object);
}
sx_xunlock(&sw_alloc_sx);
mtx_unlock(&Giant);
} else {
object = vm_object_allocate(OBJT_DEFAULT,
OFF_TO_IDX(offset + PAGE_MASK + size));
@ -504,7 +505,6 @@ swap_pager_alloc(void *handle, vm_ooffset_t size, vm_prot_t prot,
swp_pager_meta_build(object, 0, SWAPBLK_NONE);
VM_OBJECT_UNLOCK(object);
}
mtx_unlock(&Giant);
return (object);
}