raid5-cache: factor out a helper to run all stripes for an I/O unit (d8858f43) · Commits · 戴 / test

drivers/md/raid5-cache.c

+13 −10

Original line number	Diff line number	Diff line
		@@ -194,6 +194,17 @@ static void __r5l_set_io_unit_state(struct r5l_io_unit *io,
		io->state = state;
		}

		static void r5l_io_run_stripes(struct r5l_io_unit *io)
		{
		struct stripe_head sh, next;

		list_for_each_entry_safe(sh, next, &io->stripe_list, log_list) {
		list_del_init(&sh->log_list);
		set_bit(STRIPE_HANDLE, &sh->state);
		raid5_release_stripe(sh);
		}
		}

		/* XXX: totally ignores I/O errors */
		static void r5l_log_endio(struct bio *bio)
		{
		@@ -584,18 +595,10 @@ static void r5l_log_flush_endio(struct bio *bio)
		flush_bio);
		unsigned long flags;
		struct r5l_io_unit *io;
		struct stripe_head *sh;

		spin_lock_irqsave(&log->io_list_lock, flags);
		list_for_each_entry(io, &log->flushing_ios, log_sibling) {
		while (!list_empty(&io->stripe_list)) {
		sh = list_first_entry(&io->stripe_list,
		struct stripe_head, log_list);
		list_del_init(&sh->log_list);
		set_bit(STRIPE_HANDLE, &sh->state);
		raid5_release_stripe(sh);
		}
		}
		list_for_each_entry(io, &log->flushing_ios, log_sibling)
		r5l_io_run_stripes(io);
		list_splice_tail_init(&log->flushing_ios, &log->finished_ios);
		spin_unlock_irqrestore(&log->io_list_lock, flags);
		}