md: remove raid5 compute_block and compute_parity5
Dan Williams [Tue, 2 Jan 2007 20:52:31 +0000 (13:52 -0700)]
replaced by raid5_run_ops

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-By: NeilBrown <neilb@suse.de>

drivers/md/raid5.c

index 7e1cc07..0b66afe 100644 (file)
@@ -1516,130 +1516,6 @@ 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;