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linux-2.6-allow-booting-from-raid-partition.patch
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File linux-2.6-allow-booting-from-raid-partition.patch of Package kernel
Date: Tue, 19 Sep 2006 22:29:21 +0200 From: Jan Glauber <jglauber@redhat.com> Subject: [RHEL5 Patch] BZ 196943 - detect raid devices on s390 Booting from a raid device fails since the raid partitions are not detected (and therefore the raid is not assembled). This was already an issue for RHEL4 and is fixed there. Basically the same patch is needed for RHEL5. The only difference is that vtoc_format1_label is not longer a define but a struct. Please ack, Jan -- jglauber@redhat.com jang@de.ibm.com diff -urNp linux-2.6.17.s390/fs/partitions/ibm.c linux-2.6.17.s390_xxx/fs/partitions/ibm.c --- linux-2.6.17.s390/fs/partitions/ibm.c 2006-09-18 16:11:10.000000000 +0200 +++ linux-2.6.17.s390_xxx/fs/partitions/ibm.c 2006-09-19 16:35:12.000000000 +0200 @@ -128,6 +128,7 @@ ibm_partition(struct parsed_partitions * while ((data = read_dev_sector(bdev, blk*(blocksize/512), §)) != NULL) { struct vtoc_format1_label f1; + char *ch; memcpy(&f1, data, sizeof(struct vtoc_format1_label)); put_dev_sector(sect); @@ -153,6 +154,14 @@ ibm_partition(struct parsed_partitions * put_partition(state, counter + 1, offset * (blocksize >> 9), size * (blocksize >> 9)); + + /* Corrupting the label buffer now to save the stack. */ + EBCASC(f1.DS1DSNAM, 44); + f1.DS1DSNAM[44] = 0; + ch = strstr(f1.DS1DSNAM, "PART"); + if (ch != NULL && strncmp(ch + 9, "RAID ", 6) == 0) + state->parts[counter + 1].flags = 1; + counter++; blk++; }
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