From f701d589aa34d7531183c9ac6f7713ba14212b02 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 31 Mar 2009 15:09:39 +1100 Subject: md/raid6: move raid6 data processing to raid6_pq.ko Move the raid6 data processing routines into a standalone module (raid6_pq) to prepare them to be called from async_tx wrappers and other non-md drivers/modules. This precludes a circular dependency of raid456 needing the async modules for data processing while those modules in turn depend on raid456 for the base level synchronous raid6 routines. To support this move: 1/ The exportable definitions in raid6.h move to include/linux/raid/pq.h 2/ The raid6_call, recovery calls, and table symbols are exported 3/ Extra #ifdef __KERNEL__ statements to enable the userspace raid6test to compile Signed-off-by: Dan Williams Signed-off-by: NeilBrown --- drivers/md/mktables.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'drivers/md/mktables.c') diff --git a/drivers/md/mktables.c b/drivers/md/mktables.c index b61d5767aae7..3b1500843bba 100644 --- a/drivers/md/mktables.c +++ b/drivers/md/mktables.c @@ -59,7 +59,7 @@ int main(int argc, char *argv[]) uint8_t v; uint8_t exptbl[256], invtbl[256]; - printf("#include \"raid6.h\"\n"); + printf("#include \n"); /* Compute multiplication table */ printf("\nconst u8 __attribute__((aligned(256)))\n" @@ -76,6 +76,9 @@ int main(int argc, char *argv[]) printf("\t},\n"); } printf("};\n"); + printf("#ifdef __KERNEL__\n"); + printf("EXPORT_SYMBOL(raid6_gfmul);\n"); + printf("#endif\n"); /* Compute power-of-2 table (exponent) */ v = 1; @@ -92,6 +95,9 @@ int main(int argc, char *argv[]) } } printf("};\n"); + printf("#ifdef __KERNEL__\n"); + printf("EXPORT_SYMBOL(raid6_gfexp);\n"); + printf("#endif\n"); /* Compute inverse table x^-1 == x^254 */ printf("\nconst u8 __attribute__((aligned(256)))\n" @@ -104,6 +110,9 @@ int main(int argc, char *argv[]) } } printf("};\n"); + printf("#ifdef __KERNEL__\n"); + printf("EXPORT_SYMBOL(raid6_gfinv);\n"); + printf("#endif\n"); /* Compute inv(2^x + 1) (exponent-xor-inverse) table */ printf("\nconst u8 __attribute__((aligned(256)))\n" @@ -115,6 +124,9 @@ int main(int argc, char *argv[]) (j == 7) ? '\n' : ' '); } printf("};\n"); + printf("#ifdef __KERNEL__\n"); + printf("EXPORT_SYMBOL(raid6_gfexi);\n"); + printf("#endif\n"); return 0; } -- cgit v1.2.2