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| author | peter <peter@FreeBSD.org> | 2000-05-21 13:52:13 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 2000-05-21 13:52:13 +0000 |
| commit | b83e6f1ce3ee9a8fc32e837fff6c70f6e2427a66 (patch) | |
| tree | a8f195614a54315ff31f03e0a87b7e85d97414cf /sys/kern/sysv_shm.c | |
| parent | 807a5519028c413f1a6eb2a4a100af4170425554 (diff) | |
| download | FreeBSD-src-b83e6f1ce3ee9a8fc32e837fff6c70f6e2427a66.zip FreeBSD-src-b83e6f1ce3ee9a8fc32e837fff6c70f6e2427a66.tar.gz | |
Provide a temporary undocumented option: SHM_PHYS_BACKED. This will
become sysctl and/or flags controlled later. It's mainly here for an
easy place to test the physical memory backed objects.
Diffstat (limited to 'sys/kern/sysv_shm.c')
| -rw-r--r-- | sys/kern/sysv_shm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/kern/sysv_shm.c b/sys/kern/sysv_shm.c index 83311b0..16019dc 100644 --- a/sys/kern/sysv_shm.c +++ b/sys/kern/sysv_shm.c @@ -528,8 +528,13 @@ shmget_allocate_segment(p, uap, mode) * We make sure that we have allocated a pager before we need * to. */ +#ifdef SHM_PHYS_BACKED + shm_handle->shm_object = + vm_pager_allocate(OBJT_PHYS, 0, size, VM_PROT_DEFAULT, 0); +#else shm_handle->shm_object = vm_pager_allocate(OBJT_SWAP, 0, size, VM_PROT_DEFAULT, 0); +#endif vm_object_clear_flag(shm_handle->shm_object, OBJ_ONEMAPPING); vm_object_set_flag(shm_handle->shm_object, OBJ_NOSPLIT); |
