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head/sys/kern/kern_sendfile.c
| Show First 20 Lines • Show All 382 Lines • ▼ Show 20 Lines | for (int i = 0; i < npages;) { | ||||
| * | * | ||||
| * Important feature of vm_pager_has_page() is the hint | * Important feature of vm_pager_has_page() is the hint | ||||
| * stored in 'a', about how many pages we can pagein after | * stored in 'a', about how many pages we can pagein after | ||||
| * this page in a single I/O. | * this page in a single I/O. | ||||
| */ | */ | ||||
| if (!vm_pager_has_page(obj, OFF_TO_IDX(vmoff(i, off)), NULL, | if (!vm_pager_has_page(obj, OFF_TO_IDX(vmoff(i, off)), NULL, | ||||
| &a)) { | &a)) { | ||||
| pmap_zero_page(pa[i]); | pmap_zero_page(pa[i]); | ||||
| pa[i]->valid = VM_PAGE_BITS_ALL; | vm_page_valid(pa[i]); | ||||
| MPASS(pa[i]->dirty == 0); | MPASS(pa[i]->dirty == 0); | ||||
| vm_page_xunbusy(pa[i]); | vm_page_xunbusy(pa[i]); | ||||
| i++; | i++; | ||||
| continue; | continue; | ||||
| } | } | ||||
| /* | /* | ||||
| * We want to pagein as many pages as possible, limited only | * We want to pagein as many pages as possible, limited only | ||||
| ▲ Show 20 Lines • Show All 856 Lines • Show Last 20 Lines | |||||