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authoralc <alc@FreeBSD.org>2004-09-03 05:11:32 +0000
committeralc <alc@FreeBSD.org>2004-09-03 05:11:32 +0000
commit82e55fdf7687982550eb5f4127031095fdf8d75a (patch)
tree354bad52910b678ed5b43b366707bc35dc3371aa /sys/vm/vm_map.c
parent5aa2eb98b7e705cdbac165895e81d5e4bd6b5453 (diff)
downloadFreeBSD-src-82e55fdf7687982550eb5f4127031095fdf8d75a.zip
FreeBSD-src-82e55fdf7687982550eb5f4127031095fdf8d75a.tar.gz
Push Giant deep into vm_forkproc(), acquiring it only if the process has
mapped System V shared memory segments (see shmfork_myhook()) or requires the allocation of an ldt (see vm_fault_wire()).
Diffstat (limited to 'sys/vm/vm_map.c')
-rw-r--r--sys/vm/vm_map.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c
index 2a486e8..3788a4f 100644
--- a/sys/vm/vm_map.c
+++ b/sys/vm/vm_map.c
@@ -2482,8 +2482,6 @@ vmspace_fork(struct vmspace *vm1)
vm_map_entry_t new_entry;
vm_object_t object;
- GIANT_REQUIRED;
-
vm_map_lock(old_map);
vm2 = vmspace_alloc(old_map->min_offset, old_map->max_offset);
@@ -2942,7 +2940,6 @@ vmspace_unshare(struct proc *p)
struct vmspace *oldvmspace = p->p_vmspace;
struct vmspace *newvmspace;
- GIANT_REQUIRED;
if (oldvmspace->vm_refcnt == 1)
return;
newvmspace = vmspace_fork(oldvmspace);
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