linux-master/fs/aio.c

125 	struct page		**ring_pages;
339 				page_count(ctx->ring_pages[i]));
340 		page = ctx->ring_pages[i];
343 		ctx->ring_pages[i] = NULL;
347 	if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages) {
348 		kfree(ctx->ring_pages);
349 		ctx->ring_pages = NULL;
444 		if (ctx->ring_pages[idx] != &src->page)
468 	BUG_ON(ctx->ring_pages[idx] != &src->page);
469 	ctx->ring_pages[idx] = &dst->page;
519 	ctx->ring_pages = ctx->internal_pages;
521 		ctx->ring_pages = kcalloc(nr_pages, sizeof(struct page *),
523 		if (!ctx->ring_pages) {
540 		ctx->ring_pages[i] = page;
573 	ring = page_address(ctx->ring_pages[0]);
581 	flush_dcache_page(ctx->ring_pages[0]);
692 					 * changes ring_pages by ->ring_lock.
694 					ring = page_address(ctx->ring_pages[0]);
1036 		ring = page_address(ctx->ring_pages[0]);
1148 	ev_page = page_address(ctx->ring_pages[pos / AIO_EVENTS_PER_PAGE]);
1153 	flush_dcache_page(ctx->ring_pages[pos / AIO_EVENTS_PER_PAGE]);
1166 	ring = page_address(ctx->ring_pages[0]);
1169 	flush_dcache_page(ctx->ring_pages[0]);
1241 	/* Access to ->ring_pages here is protected by ctx->ring_lock. */
1242 	ring = page_address(ctx->ring_pages[0]);
1270 		page = ctx->ring_pages[pos / AIO_EVENTS_PER_PAGE];
1290 	ring = page_address(ctx->ring_pages[0]);
1292 	flush_dcache_page(ctx->ring_pages[0]);