On Wed, Nov 23, 2016 at 10:50:39PM -0800, Song Liu wrote: > RMW of r5c write back cache uses an extra page to store old data for > prexor. handle_stripe_dirtying() allocates this page by calling > alloc_page(). However, alloc_page() may fail. > > To handle alloc_page() failures, this patch adds an extra page to > disk_info. When alloc_page fails, handle_stripe() trys to use these > pages. When these pages are used by other stripe (R5C_EXTRA_PAGE_IN_USE), > the stripe is added to delayed_list. Thanks, Applied! -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
