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fileobj: rewrite for scalability using per-file page hash

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This commit is contained in:
Balazs Gerofi
2016-12-17 19:50:48 +09:00
parent 91cdb16158
commit bce10e11e4
6 changed files with 185 additions and 188 deletions
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21
kernel/process.c
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@@ -1384,6 +1384,11 @@ static int sync_one_page(void *arg0, page_table_t pt, pte_t *ptep,
flush_tlb_single((uintptr_t)pgaddr); /* XXX: TLB flush */
phys = pte_get_phys(ptep);
if (args->memobj->flags & MF_ZEROFILL) {
error = 0;
goto out;
}
error = memobj_flush_page(args->memobj, phys, pgsize);
if (error) {
ekprintf("sync_one_page(%p,%p,%p %#lx,%p,%d):"
@@ -1411,11 +1416,19 @@ int sync_process_memory_range(struct process_vm *vm, struct vm_range *range,
args.memobj = range->memobj;
ihk_mc_spinlock_lock_noirq(&vm->page_table_lock);
memobj_lock(range->memobj);
if (!(range->memobj->flags & MF_ZEROFILL)) {
memobj_lock(range->memobj);
}
error = visit_pte_range(vm->address_space->page_table, (void *)start,
(void *)end, range->pgshift, VPTEF_SKIP_NULL,
&sync_one_page, &args);
memobj_unlock(range->memobj);
(void *)end, range->pgshift, VPTEF_SKIP_NULL,
&sync_one_page, &args);
if (!(range->memobj->flags & MF_ZEROFILL)) {
memobj_unlock(range->memobj);
}
ihk_mc_spinlock_unlock_noirq(&vm->page_table_lock);
if (error) {
ekprintf("sync_process_memory_range(%p,%p,%#lx,%#lx):"