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head/sys/kern/uipc_shm.c
Show First 20 Lines • Show All 449 Lines • ▼ Show 20 Lines | retry: | ||||
goto retry; | goto retry; | ||||
} else if (vm_pager_has_page(object, idx, NULL, NULL)) { | } else if (vm_pager_has_page(object, idx, NULL, NULL)) { | ||||
m = vm_page_alloc(object, idx, VM_ALLOC_NORMAL); | m = vm_page_alloc(object, idx, VM_ALLOC_NORMAL); | ||||
if (m == NULL) { | if (m == NULL) { | ||||
VM_OBJECT_WUNLOCK(object); | VM_OBJECT_WUNLOCK(object); | ||||
VM_WAIT; | VM_WAIT; | ||||
VM_OBJECT_WLOCK(object); | VM_OBJECT_WLOCK(object); | ||||
goto retry; | goto retry; | ||||
} else if (m->valid != VM_PAGE_BITS_ALL) | } | ||||
rv = vm_pager_get_pages(object, &m, 1, | rv = vm_pager_get_pages(object, &m, 1, NULL, | ||||
NULL, NULL); | NULL); | ||||
else | |||||
/* A cached page was reactivated. */ | |||||
rv = VM_PAGER_OK; | |||||
vm_page_lock(m); | vm_page_lock(m); | ||||
if (rv == VM_PAGER_OK) { | if (rv == VM_PAGER_OK) { | ||||
vm_page_deactivate(m); | vm_page_deactivate(m); | ||||
vm_page_unlock(m); | vm_page_unlock(m); | ||||
vm_page_xunbusy(m); | vm_page_xunbusy(m); | ||||
} else { | } else { | ||||
vm_page_free(m); | vm_page_free(m); | ||||
vm_page_unlock(m); | vm_page_unlock(m); | ||||
▲ Show 20 Lines • Show All 636 Lines • Show Last 20 Lines |