From: David Woodhouse Date: Mon, 13 Jul 2009 10:35:12 +0000 (+0100) Subject: md: Factor out RAID6 algorithms into lib/ X-Git-Tag: v2.6.36-rc1~280^2^2^2~1 X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=f5e70d0fe3ea990cfb3fc8d7f76a719adcb1e0b5;p=net-next-2.6.git md: Factor out RAID6 algorithms into lib/ We'll want to use these in btrfs too. Signed-off-by: David Woodhouse --- diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 2158377a135..891f7c8490d 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -121,7 +121,7 @@ config MD_RAID10 config MD_RAID456 tristate "RAID-4/RAID-5/RAID-6 mode" depends on BLK_DEV_MD - select MD_RAID6_PQ + select RAID6_PQ select ASYNC_MEMCPY select ASYNC_XOR select ASYNC_PQ @@ -165,12 +165,9 @@ config MULTICORE_RAID456 If unsure, say N. -config MD_RAID6_PQ - tristate - config ASYNC_RAID6_TEST tristate "Self test for hardware accelerated raid6 recovery" - depends on MD_RAID6_PQ + depends on RAID6_PQ select ASYNC_RAID6_RECOV ---help--- This is a one-shot self test that permutes through the diff --git a/drivers/md/Makefile b/drivers/md/Makefile index 1dc4185bd78..c9b3a7843d8 100644 --- a/drivers/md/Makefile +++ b/drivers/md/Makefile @@ -12,13 +12,6 @@ dm-log-userspace-y \ += dm-log-userspace-base.o dm-log-userspace-transfer.o md-mod-y += md.o bitmap.o raid456-y += raid5.o -raid6_pq-y += raid6algos.o raid6recov.o raid6tables.o \ - raid6int1.o raid6int2.o raid6int4.o \ - raid6int8.o raid6int16.o raid6int32.o \ - raid6altivec1.o raid6altivec2.o raid6altivec4.o \ - raid6altivec8.o \ - raid6mmx.o raid6sse1.o raid6sse2.o -hostprogs-y += mktables # Note: link order is important. All raid personalities # and must come before md.o, as they each initialise @@ -29,7 +22,6 @@ obj-$(CONFIG_MD_LINEAR) += linear.o obj-$(CONFIG_MD_RAID0) += raid0.o obj-$(CONFIG_MD_RAID1) += raid1.o obj-$(CONFIG_MD_RAID10) += raid10.o -obj-$(CONFIG_MD_RAID6_PQ) += raid6_pq.o obj-$(CONFIG_MD_RAID456) += raid456.o obj-$(CONFIG_MD_MULTIPATH) += multipath.o obj-$(CONFIG_MD_FAULTY) += faulty.o @@ -45,75 +37,7 @@ obj-$(CONFIG_DM_MIRROR) += dm-mirror.o dm-log.o dm-region-hash.o obj-$(CONFIG_DM_LOG_USERSPACE) += dm-log-userspace.o obj-$(CONFIG_DM_ZERO) += dm-zero.o -quiet_cmd_unroll = UNROLL $@ - cmd_unroll = $(PERL) $(srctree)/$(src)/unroll.pl $(UNROLL) \ - < $< > $@ || ( rm -f $@ && exit 1 ) - -ifeq ($(CONFIG_ALTIVEC),y) -altivec_flags := -maltivec -mabi=altivec -endif - ifeq ($(CONFIG_DM_UEVENT),y) dm-mod-objs += dm-uevent.o endif -targets += raid6int1.c -$(obj)/raid6int1.c: UNROLL := 1 -$(obj)/raid6int1.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -targets += raid6int2.c -$(obj)/raid6int2.c: UNROLL := 2 -$(obj)/raid6int2.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -targets += raid6int4.c -$(obj)/raid6int4.c: UNROLL := 4 -$(obj)/raid6int4.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -targets += raid6int8.c -$(obj)/raid6int8.c: UNROLL := 8 -$(obj)/raid6int8.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -targets += raid6int16.c -$(obj)/raid6int16.c: UNROLL := 16 -$(obj)/raid6int16.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -targets += raid6int32.c -$(obj)/raid6int32.c: UNROLL := 32 -$(obj)/raid6int32.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -CFLAGS_raid6altivec1.o += $(altivec_flags) -targets += raid6altivec1.c -$(obj)/raid6altivec1.c: UNROLL := 1 -$(obj)/raid6altivec1.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -CFLAGS_raid6altivec2.o += $(altivec_flags) -targets += raid6altivec2.c -$(obj)/raid6altivec2.c: UNROLL := 2 -$(obj)/raid6altivec2.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -CFLAGS_raid6altivec4.o += $(altivec_flags) -targets += raid6altivec4.c -$(obj)/raid6altivec4.c: UNROLL := 4 -$(obj)/raid6altivec4.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -CFLAGS_raid6altivec8.o += $(altivec_flags) -targets += raid6altivec8.c -$(obj)/raid6altivec8.c: UNROLL := 8 -$(obj)/raid6altivec8.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE - $(call if_changed,unroll) - -quiet_cmd_mktable = TABLE $@ - cmd_mktable = $(obj)/mktables > $@ || ( rm -f $@ && exit 1 ) - -targets += raid6tables.c -$(obj)/raid6tables.c: $(obj)/mktables FORCE - $(call if_changed,mktable) diff --git a/lib/Kconfig b/lib/Kconfig index bb1326d3839..1cc756c4c78 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -7,6 +7,9 @@ config BINARY_PRINTF menu "Library routines" +config RAID6_PQ + tristate + config BITREVERSE tristate diff --git a/lib/Makefile b/lib/Makefile index 2e78277eff9..b25faf0d1d5 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/ obj-$(CONFIG_REED_SOLOMON) += reed_solomon/ obj-$(CONFIG_LZO_COMPRESS) += lzo/ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/ +obj-$(CONFIG_RAID6_PQ) += raid6/ lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile new file mode 100644 index 00000000000..b2fe4baa90e --- /dev/null +++ b/lib/raid6/Makefile @@ -0,0 +1,78 @@ +obj-$(CONFIG_RAID6_PQ) += raid6_pq.o + +raid6_pq-y += raid6algos.o raid6recov.o raid6tables.o \ + raid6int1.o raid6int2.o raid6int4.o \ + raid6int8.o raid6int16.o raid6int32.o \ + raid6altivec1.o raid6altivec2.o raid6altivec4.o \ + raid6altivec8.o \ + raid6mmx.o raid6sse1.o raid6sse2.o +hostprogs-y += mktables + +quiet_cmd_unroll = UNROLL $@ + cmd_unroll = $(PERL) $(srctree)/$(src)/unroll.pl $(UNROLL) \ + < $< > $@ || ( rm -f $@ && exit 1 ) + +ifeq ($(CONFIG_ALTIVEC),y) +altivec_flags := -maltivec -mabi=altivec +endif + +targets += raid6int1.c +$(obj)/raid6int1.c: UNROLL := 1 +$(obj)/raid6int1.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +targets += raid6int2.c +$(obj)/raid6int2.c: UNROLL := 2 +$(obj)/raid6int2.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +targets += raid6int4.c +$(obj)/raid6int4.c: UNROLL := 4 +$(obj)/raid6int4.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +targets += raid6int8.c +$(obj)/raid6int8.c: UNROLL := 8 +$(obj)/raid6int8.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +targets += raid6int16.c +$(obj)/raid6int16.c: UNROLL := 16 +$(obj)/raid6int16.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +targets += raid6int32.c +$(obj)/raid6int32.c: UNROLL := 32 +$(obj)/raid6int32.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +CFLAGS_raid6altivec1.o += $(altivec_flags) +targets += raid6altivec1.c +$(obj)/raid6altivec1.c: UNROLL := 1 +$(obj)/raid6altivec1.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +CFLAGS_raid6altivec2.o += $(altivec_flags) +targets += raid6altivec2.c +$(obj)/raid6altivec2.c: UNROLL := 2 +$(obj)/raid6altivec2.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +CFLAGS_raid6altivec4.o += $(altivec_flags) +targets += raid6altivec4.c +$(obj)/raid6altivec4.c: UNROLL := 4 +$(obj)/raid6altivec4.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +CFLAGS_raid6altivec8.o += $(altivec_flags) +targets += raid6altivec8.c +$(obj)/raid6altivec8.c: UNROLL := 8 +$(obj)/raid6altivec8.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE + $(call if_changed,unroll) + +quiet_cmd_mktable = TABLE $@ + cmd_mktable = $(obj)/mktables > $@ || ( rm -f $@ && exit 1 ) + +targets += raid6tables.c +$(obj)/raid6tables.c: $(obj)/mktables FORCE + $(call if_changed,mktable) diff --git a/drivers/md/mktables.c b/lib/raid6/mktables.c similarity index 100% rename from drivers/md/mktables.c rename to lib/raid6/mktables.c diff --git a/drivers/md/raid6algos.c b/lib/raid6/raid6algos.c similarity index 100% rename from drivers/md/raid6algos.c rename to lib/raid6/raid6algos.c diff --git a/drivers/md/raid6altivec.uc b/lib/raid6/raid6altivec.uc similarity index 100% rename from drivers/md/raid6altivec.uc rename to lib/raid6/raid6altivec.uc diff --git a/drivers/md/raid6int.uc b/lib/raid6/raid6int.uc similarity index 100% rename from drivers/md/raid6int.uc rename to lib/raid6/raid6int.uc diff --git a/drivers/md/raid6mmx.c b/lib/raid6/raid6mmx.c similarity index 100% rename from drivers/md/raid6mmx.c rename to lib/raid6/raid6mmx.c diff --git a/drivers/md/raid6recov.c b/lib/raid6/raid6recov.c similarity index 100% rename from drivers/md/raid6recov.c rename to lib/raid6/raid6recov.c diff --git a/drivers/md/raid6sse1.c b/lib/raid6/raid6sse1.c similarity index 100% rename from drivers/md/raid6sse1.c rename to lib/raid6/raid6sse1.c diff --git a/drivers/md/raid6sse2.c b/lib/raid6/raid6sse2.c similarity index 100% rename from drivers/md/raid6sse2.c rename to lib/raid6/raid6sse2.c diff --git a/drivers/md/raid6test/Makefile b/lib/raid6/raid6test/Makefile similarity index 100% rename from drivers/md/raid6test/Makefile rename to lib/raid6/raid6test/Makefile diff --git a/drivers/md/raid6test/test.c b/lib/raid6/raid6test/test.c similarity index 100% rename from drivers/md/raid6test/test.c rename to lib/raid6/raid6test/test.c diff --git a/drivers/md/raid6x86.h b/lib/raid6/raid6x86.h similarity index 100% rename from drivers/md/raid6x86.h rename to lib/raid6/raid6x86.h diff --git a/drivers/md/unroll.pl b/lib/raid6/unroll.pl similarity index 100% rename from drivers/md/unroll.pl rename to lib/raid6/unroll.pl