Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760401AbXF0B5Q (ORCPT ); Tue, 26 Jun 2007 21:57:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757587AbXF0Bv5 (ORCPT ); Tue, 26 Jun 2007 21:51:57 -0400 Received: from mga01.intel.com ([192.55.52.88]:51709 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756851AbXF0Bvv (ORCPT ); Tue, 26 Jun 2007 21:51:51 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.16,465,1175497200"; d="scan'208";a="261537634" From: Dan Williams Subject: [md-accel PATCH 15/19] md: remove raid5 compute_block and compute_parity5 To: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org Cc: neilb@suse.de, akpm@linux-foundation.org, davem@davemloft.net, christopher.leech@intel.com, shannon.nelson@intel.com, herbert@gondor.apana.org.au, jeff@garzik.org Date: Tue, 26 Jun 2007 18:51:50 -0700 Message-ID: <20070627015150.18962.29466.stgit@dwillia2-linux.ch.intel.com> In-Reply-To: <20070627014823.18962.96398.stgit@dwillia2-linux.ch.intel.com> References: <20070627014823.18962.96398.stgit@dwillia2-linux.ch.intel.com> User-Agent: StGIT/0.12.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4078 Lines: 149 replaced by raid5_run_ops Signed-off-by: Dan Williams Acked-By: NeilBrown --- drivers/md/raid5.c | 124 ---------------------------------------------------- 1 files changed, 0 insertions(+), 124 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index a09bc5f..0579d1f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1509,130 +1509,6 @@ static void copy_data(int frombio, struct bio *bio, } \ } while(0) - -static void compute_block(struct stripe_head *sh, int dd_idx) -{ - int i, count, disks = sh->disks; - void *ptr[MAX_XOR_BLOCKS], *dest, *p; - - pr_debug("compute_block, stripe %llu, idx %d\n", - (unsigned long long)sh->sector, dd_idx); - - dest = page_address(sh->dev[dd_idx].page); - memset(dest, 0, STRIPE_SIZE); - count = 0; - for (i = disks ; i--; ) { - if (i == dd_idx) - continue; - p = page_address(sh->dev[i].page); - if (test_bit(R5_UPTODATE, &sh->dev[i].flags)) - ptr[count++] = p; - else - printk(KERN_ERR "compute_block() %d, stripe %llu, %d" - " not present\n", dd_idx, - (unsigned long long)sh->sector, i); - - check_xor(); - } - if (count) - xor_blocks(count, STRIPE_SIZE, dest, ptr); - set_bit(R5_UPTODATE, &sh->dev[dd_idx].flags); -} - -static void compute_parity5(struct stripe_head *sh, int method) -{ - raid5_conf_t *conf = sh->raid_conf; - int i, pd_idx = sh->pd_idx, disks = sh->disks, count; - void *ptr[MAX_XOR_BLOCKS], *dest; - struct bio *chosen; - - pr_debug("compute_parity5, stripe %llu, method %d\n", - (unsigned long long)sh->sector, method); - - count = 0; - dest = page_address(sh->dev[pd_idx].page); - switch(method) { - case READ_MODIFY_WRITE: - BUG_ON(!test_bit(R5_UPTODATE, &sh->dev[pd_idx].flags)); - for (i=disks ; i-- ;) { - if (i==pd_idx) - continue; - if (sh->dev[i].towrite && - test_bit(R5_UPTODATE, &sh->dev[i].flags)) { - ptr[count++] = page_address(sh->dev[i].page); - chosen = sh->dev[i].towrite; - sh->dev[i].towrite = NULL; - - if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags)) - wake_up(&conf->wait_for_overlap); - - BUG_ON(sh->dev[i].written); - sh->dev[i].written = chosen; - check_xor(); - } - } - break; - case RECONSTRUCT_WRITE: - memset(dest, 0, STRIPE_SIZE); - for (i= disks; i-- ;) - if (i!=pd_idx && sh->dev[i].towrite) { - chosen = sh->dev[i].towrite; - sh->dev[i].towrite = NULL; - - if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags)) - wake_up(&conf->wait_for_overlap); - - BUG_ON(sh->dev[i].written); - sh->dev[i].written = chosen; - } - break; - case CHECK_PARITY: - break; - } - if (count) { - xor_blocks(count, STRIPE_SIZE, dest, ptr); - count = 0; - } - - for (i = disks; i--;) - if (sh->dev[i].written) { - sector_t sector = sh->dev[i].sector; - struct bio *wbi = sh->dev[i].written; - while (wbi && wbi->bi_sector < sector + STRIPE_SECTORS) { - copy_data(1, wbi, sh->dev[i].page, sector); - wbi = r5_next_bio(wbi, sector); - } - - set_bit(R5_LOCKED, &sh->dev[i].flags); - set_bit(R5_UPTODATE, &sh->dev[i].flags); - } - - switch(method) { - case RECONSTRUCT_WRITE: - case CHECK_PARITY: - for (i=disks; i--;) - if (i != pd_idx) { - ptr[count++] = page_address(sh->dev[i].page); - check_xor(); - } - break; - case READ_MODIFY_WRITE: - for (i = disks; i--;) - if (sh->dev[i].written) { - ptr[count++] = page_address(sh->dev[i].page); - check_xor(); - } - } - if (count) - xor_blocks(count, STRIPE_SIZE, dest, ptr); - - if (method != CHECK_PARITY) { - set_bit(R5_UPTODATE, &sh->dev[pd_idx].flags); - set_bit(R5_LOCKED, &sh->dev[pd_idx].flags); - } else - clear_bit(R5_UPTODATE, &sh->dev[pd_idx].flags); -} - static void compute_parity6(struct stripe_head *sh, int method) { raid6_conf_t *conf = sh->raid_conf; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/