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Revision ba4ba8a69dcb446450b5ddeca48a7bd15783f4c2 authored by Peter Oberparleiter on 27 July 2006, 12:00:23 UTC, committed by Martin Schwidefsky on 27 July 2006, 12:00:23 UTC 
[S390] permanent subchannel busy conditions may cause I/O stall
 
In special conditions where a subchannel rejects the HALT I/O-
instruction with a busy indication (cc 2), I/O may stall.
I/O request termination logic retries HALT I/O indefinitely
because it expects HALT I/O to alter the subchannel status which
is not true when cc 2 is returned.
In case of a busy indication, try CLEAR I/O instruction immediately.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
1 parent 6482132
Raw File
Makefile 
#
# Makefile for the linux kernel.
#

obj-y				:= main.o version.o mounts.o initramfs.o
obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o

mounts-y			:= do_mounts.o
mounts-$(CONFIG_BLK_DEV_RAM)	+= do_mounts_rd.o
mounts-$(CONFIG_BLK_DEV_INITRD)	+= do_mounts_initrd.o
mounts-$(CONFIG_BLK_DEV_MD)	+= do_mounts_md.o

# files to be removed upon make clean
clean-files := ../include/linux/compile.h

# dependencies on generated files need to be listed explicitly

$(obj)/version.o: include/linux/compile.h

# compile.h changes depending on hostname, generation number, etc,
# so we regenerate it always.
# mkcompile_h will make sure to only update the
# actual file if its content has changed.

include/linux/compile.h: FORCE
	@echo '  CHK     $@'
	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
	"$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(CFLAGS)"
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