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head/sys/vm/vnode_pager.c
| Show First 20 Lines • Show All 1,144 Lines • ▼ Show 20 Lines | for (i = 0, tfoff = IDX_TO_OFF(bp->b_pages[0]->pindex); | ||||
| i < bp->b_npages; i++, tfoff = nextoff) { | i < bp->b_npages; i++, tfoff = nextoff) { | ||||
| vm_page_t mt; | vm_page_t mt; | ||||
| nextoff = tfoff + PAGE_SIZE; | nextoff = tfoff + PAGE_SIZE; | ||||
| mt = bp->b_pages[i]; | mt = bp->b_pages[i]; | ||||
| if (mt == bogus_page) | if (mt == bogus_page) | ||||
| continue; | continue; | ||||
| if (error == 0) { | |||||
| if (nextoff <= object->un_pager.vnp.vnp_size) { | if (nextoff <= object->un_pager.vnp.vnp_size) { | ||||
| /* | /* | ||||
| * Read filled up entire page. | * Read filled up entire page. | ||||
| */ | */ | ||||
| vm_page_valid(mt); | vm_page_valid(mt); | ||||
| KASSERT(mt->dirty == 0, | KASSERT(mt->dirty == 0, | ||||
| ("%s: page %p is dirty", __func__, mt)); | ("%s: page %p is dirty", __func__, mt)); | ||||
| KASSERT(!pmap_page_is_mapped(mt), | KASSERT(!pmap_page_is_mapped(mt), | ||||
| ("%s: page %p is mapped", __func__, mt)); | ("%s: page %p is mapped", __func__, mt)); | ||||
| } else { | } else { | ||||
| /* | /* | ||||
| * Read did not fill up entire page. | * Read did not fill up entire page. | ||||
| * | * | ||||
| * Currently we do not set the entire page valid, | * Currently we do not set the entire page | ||||
| * we just try to clear the piece that we couldn't | * valid, we just try to clear the piece that | ||||
| * read. | * we couldn't read. | ||||
| */ | */ | ||||
| vm_page_set_valid_range(mt, 0, | vm_page_set_valid_range(mt, 0, | ||||
| object->un_pager.vnp.vnp_size - tfoff); | object->un_pager.vnp.vnp_size - tfoff); | ||||
| KASSERT((mt->dirty & vm_page_bits(0, | KASSERT((mt->dirty & vm_page_bits(0, | ||||
| object->un_pager.vnp.vnp_size - tfoff)) == 0, | object->un_pager.vnp.vnp_size - tfoff)) == | ||||
| ("%s: page %p is dirty", __func__, mt)); | 0, ("%s: page %p is dirty", __func__, mt)); | ||||
| } | |||||
| } | } | ||||
| if (i < bp->b_pgbefore || i >= bp->b_npages - bp->b_pgafter) | if (i < bp->b_pgbefore || i >= bp->b_npages - bp->b_pgafter) | ||||
| vm_page_readahead_finish(mt); | vm_page_readahead_finish(mt); | ||||
| } | } | ||||
| VM_OBJECT_RUNLOCK(object); | VM_OBJECT_RUNLOCK(object); | ||||
| return (error); | return (error); | ||||
| ▲ Show 20 Lines • Show All 406 Lines • Show Last 20 Lines | |||||