784aae735d
Implement simple read-only sysfs entry for device-mapper block device. This patch adds a simple sysfs directory named "dm" under block device properties and implements - name attribute (string containing mapped device name) - uuid attribute (string containing UUID, or empty string if not set) The kobject is embedded in mapped_device struct, so no additional memory allocation is needed for initializing sysfs entry. During the processing of sysfs attribute we need to lock mapped device which is done by a new function dm_get_from_kobj, which returns the md associated with kobject and increases the usage count. Each 'show attribute' function is responsible for its own locking. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
112 lines
3.6 KiB
Makefile
112 lines
3.6 KiB
Makefile
#
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# Makefile for the kernel software RAID and LVM drivers.
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#
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dm-mod-objs := dm.o dm-table.o dm-target.o dm-linear.o dm-stripe.o \
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dm-ioctl.o dm-io.o dm-kcopyd.o dm-sysfs.o
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dm-multipath-objs := dm-path-selector.o dm-mpath.o
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dm-snapshot-objs := dm-snap.o dm-exception-store.o
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dm-mirror-objs := dm-raid1.o
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md-mod-objs := md.o bitmap.o
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raid456-objs := raid5.o raid6algos.o raid6recov.o raid6tables.o \
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raid6int1.o raid6int2.o raid6int4.o \
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raid6int8.o raid6int16.o raid6int32.o \
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raid6altivec1.o raid6altivec2.o raid6altivec4.o \
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raid6altivec8.o \
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raid6mmx.o raid6sse1.o raid6sse2.o
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hostprogs-y := mktables
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# Note: link order is important. All raid personalities
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# and must come before md.o, as they each initialise
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# themselves, and md.o may use the personalities when it
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# auto-initialised.
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obj-$(CONFIG_MD_LINEAR) += linear.o
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obj-$(CONFIG_MD_RAID0) += raid0.o
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obj-$(CONFIG_MD_RAID1) += raid1.o
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obj-$(CONFIG_MD_RAID10) += raid10.o
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obj-$(CONFIG_MD_RAID456) += raid456.o
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obj-$(CONFIG_MD_MULTIPATH) += multipath.o
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obj-$(CONFIG_MD_FAULTY) += faulty.o
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obj-$(CONFIG_BLK_DEV_MD) += md-mod.o
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obj-$(CONFIG_BLK_DEV_DM) += dm-mod.o
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obj-$(CONFIG_DM_CRYPT) += dm-crypt.o
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obj-$(CONFIG_DM_DELAY) += dm-delay.o
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obj-$(CONFIG_DM_MULTIPATH) += dm-multipath.o dm-round-robin.o
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obj-$(CONFIG_DM_SNAPSHOT) += dm-snapshot.o
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obj-$(CONFIG_DM_MIRROR) += dm-mirror.o dm-log.o dm-region-hash.o
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obj-$(CONFIG_DM_ZERO) += dm-zero.o
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quiet_cmd_unroll = UNROLL $@
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cmd_unroll = $(PERL) $(srctree)/$(src)/unroll.pl $(UNROLL) \
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< $< > $@ || ( rm -f $@ && exit 1 )
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ifeq ($(CONFIG_ALTIVEC),y)
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altivec_flags := -maltivec -mabi=altivec
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endif
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ifeq ($(CONFIG_DM_UEVENT),y)
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dm-mod-objs += dm-uevent.o
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endif
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targets += raid6int1.c
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$(obj)/raid6int1.c: UNROLL := 1
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$(obj)/raid6int1.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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targets += raid6int2.c
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$(obj)/raid6int2.c: UNROLL := 2
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$(obj)/raid6int2.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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targets += raid6int4.c
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$(obj)/raid6int4.c: UNROLL := 4
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$(obj)/raid6int4.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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targets += raid6int8.c
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$(obj)/raid6int8.c: UNROLL := 8
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$(obj)/raid6int8.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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targets += raid6int16.c
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$(obj)/raid6int16.c: UNROLL := 16
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$(obj)/raid6int16.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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targets += raid6int32.c
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$(obj)/raid6int32.c: UNROLL := 32
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$(obj)/raid6int32.c: $(src)/raid6int.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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CFLAGS_raid6altivec1.o += $(altivec_flags)
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targets += raid6altivec1.c
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$(obj)/raid6altivec1.c: UNROLL := 1
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$(obj)/raid6altivec1.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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CFLAGS_raid6altivec2.o += $(altivec_flags)
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targets += raid6altivec2.c
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$(obj)/raid6altivec2.c: UNROLL := 2
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$(obj)/raid6altivec2.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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CFLAGS_raid6altivec4.o += $(altivec_flags)
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targets += raid6altivec4.c
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$(obj)/raid6altivec4.c: UNROLL := 4
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$(obj)/raid6altivec4.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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CFLAGS_raid6altivec8.o += $(altivec_flags)
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targets += raid6altivec8.c
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$(obj)/raid6altivec8.c: UNROLL := 8
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$(obj)/raid6altivec8.c: $(src)/raid6altivec.uc $(src)/unroll.pl FORCE
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$(call if_changed,unroll)
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quiet_cmd_mktable = TABLE $@
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cmd_mktable = $(obj)/mktables > $@ || ( rm -f $@ && exit 1 )
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targets += raid6tables.c
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$(obj)/raid6tables.c: $(obj)/mktables FORCE
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$(call if_changed,mktable)
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