From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Akinobu Mita Subject: [PATCH 5/7] s390/char: use for_each_clear_bit Date: Sat, 14 Jan 2012 00:53:22 +0900 Message-Id: <1326470004-10096-6-git-send-email-akinobu.mita@gmail.com> In-Reply-To: <1326470004-10096-1-git-send-email-akinobu.mita@gmail.com> References: <1326470004-10096-1-git-send-email-akinobu.mita@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Archive: List-Post: To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org Cc: Akinobu Mita , Martin Schwidefsky , Heiko Carstens , linux390@de.ibm.com, linux-s390@vger.kernel.org List-ID: Use for_each_clear_bit() to iterate over all the cleared bit in a memory region. Signed-off-by: Akinobu Mita Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org --- drivers/s390/char/sclp_cmd.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 0b54a91..168525a 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -441,9 +441,8 @@ static int sclp_mem_notifier(struct notifier_block *nb, start = arg->start_pfn << PAGE_SHIFT; size = arg->nr_pages << PAGE_SHIFT; mutex_lock(&sclp_mem_mutex); - for (id = 0; id <= sclp_max_storage_id; id++) - if (!test_bit(id, sclp_storage_ids)) - sclp_attach_storage(id); + for_each_clear_bit(id, sclp_storage_ids, sclp_max_storage_id + 1) + sclp_attach_storage(id); switch (action) { case MEM_ONLINE: case MEM_GOING_OFFLINE: -- 1.7.4.4