[PATCH] 2.5.38 s390 fixes.

Martin Schwidefsky (schwidefsky@de.ibm.com)
Tue, 24 Sep 2002 19:26:02 +0200


Hi Linus,
I put together a set of patches for s/390 again. There are 24 patches, each
starting with a small description. To get a useful s390/s390x kernel at
least the first 5 patches are needed.

The list of patches and some comments:

01_minimal: Minimal patch to get the kernel without any device drivers
compiled and working again.
02_syscalls: Add the new system calls.
03_partition: Get the bloody ibm partition code to work.
04_config: I removed some unnecessary config options and restructure
the configuration menu a bit.
05_dasd: I picked up Al Viros changes to the dasd driver and made
it even better.
06_xpram: No comment.
07_tasklet: Get rid of the bottom halves in the s/390 device drivers.
08_bitops: A bug fix for the (unused) option ALIGN_CS == 1.
09_emu31: Latest 31 bit emulation fixes.
10_vmlinux: Unify the two linker scripts.
11_preempt: Add preemption support. It still complains about about
"scheduling while atomic" though.
12_inline: Inline all tcpip checksum functions and optimize xchg.
13_diag44: Make use of the diag 0x44 in 64 bit spinlock code. The diag 0x44
yields a virtual cpu under VM and LPAR.
14_time: I removed the dependency on the boot cpu in the timer interrupt.
This makes it easier with the timer patch and with switching
cpus on and off.
15_beauty: Some beautification.
16_fpu: Optimization for loading/storing of fpu registers. Got rid
of another stupid file in arch/s390/kernel.
17_ptrace: Make ptrace readable.
18_quiesce: Add signal quiesce support.
19_syncisc: Fix and simplify synchronous i/o functions.
20_ending: Simplify s390_process_IRQ.
21_chpid: Do the right thing if channel paths are not available.
22_boot: Reworked boot sequence.
23_boot_common:Remove s390 specific init call from init/main.c. 22_boot
and 23_boot_common are related.
24_proc_misc: /proc/interrupts does not make sense on s390. There are
65536 i/o and 65536 external interrupts. We do not really
want to have a file with #cpus * 128K zeros.

blue skies,
Martin.

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