Messages in this thread Patch in this message |  | | Date | Fri, 17 Nov 2000 23:41:44 +0100 | From | Jasper Spaans <> | Subject | [PATCH] raid5 fix after xor.c cleanup |
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Hi Ingo & lists,
due to the xor.c cleanup in 2.4.0-test11-pre5+, raid5 compiled into the kernel fails when booting, because the calibrate_xor_block function hasn't been called while registering a raid5 volume; this leads to a panic, as no checksumming function has been chosen.
Here's a tiny patch to restore that functionality, can you apply it?
Regards, -- Jasper Spaans <jasper@spaans.ds9a.nl>
diff -Nru linux-2.4.0-test11-pre6-orig/drivers/md/raid5.c linux-2.4.0-test11-pre6/drivers/md/raid5.c --- linux-2.4.0-test11-pre6-orig/drivers/md/raid5.c Fri Nov 17 23:21:18 2000 +++ linux-2.4.0-test11-pre6/drivers/md/raid5.c Fri Nov 17 23:19:24 2000 @@ -2344,6 +2344,9 @@ int raid5_init (void) { +#ifndef MODULE + calibrate_xor_block(); +#endif return register_md_personality (RAID5, &raid5_personality); } diff -Nru linux-2.4.0-test11-pre6-orig/drivers/md/xor.c linux-2.4.0-test11-pre6/drivers/md/xor.c --- linux-2.4.0-test11-pre6-orig/drivers/md/xor.c Fri Nov 17 23:21:18 2000 +++ linux-2.4.0-test11-pre6/drivers/md/xor.c Fri Nov 17 23:31:36 2000 @@ -98,7 +98,7 @@ speed / 1000, speed % 1000); } -static int +int calibrate_xor_block(void) { void *b1, *b2; @@ -139,5 +139,6 @@ } MD_EXPORT_SYMBOL(xor_block); +MD_EXPORT_SYMBOL(calibrate_xor_block); module_init(calibrate_xor_block); diff -Nru linux-2.4.0-test11-pre6-orig/include/linux/raid/xor.h linux-2.4.0-test11-pre6/include/linux/raid/xor.h --- linux-2.4.0-test11-pre6-orig/include/linux/raid/xor.h Fri Nov 17 23:21:48 2000 +++ linux-2.4.0-test11-pre6/include/linux/raid/xor.h Fri Nov 17 23:33:03 2000 @@ -6,6 +6,7 @@ #define MAX_XOR_BLOCKS 5 extern void xor_block(unsigned int count, struct buffer_head **bh_ptr); +extern int calibrate_xor_block(void); struct xor_block_template { struct xor_block_template *next; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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