linux-toradex.git/drivers/s390, branch v2.6.27-rc4

[S390] qeth: avoid use of include/asm-s390

2008-08-01T14:39:36+00:00

The planned move of include/asm-s390 to arch/s390/include/asm
requires that all includes for asm headers use include/asm and
not include/asm-s390.

Signed-off-by: Martin Schwidefsky

[S390] dont use kthread for smp_rescan_cpus().

2008-08-01T14:39:36+00:00

Since git commit 3da1c84c00c7e5fa8348336bd8c342f9128b0f14
"workqueues: make get_online_cpus() useable for work->func()"
it is safe to call get_online_cpus() from workqueue context.
So remove the kthread workaround again.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] virtio console: fix section mismatch warning.

2008-08-01T14:39:35+00:00

Fix these two false positive warnings:

WARNING: vmlinux.o(.text+0x2e1cc4): Section mismatch in reference from the function s390_virtio_console_init() to the function .init.text:early_put_chars()
The function s390_virtio_console_init() references
the function __init early_put_chars().
This is often because s390_virtio_console_init lacks a __init
annotation or the annotation of early_put_chars is wrong.

WARNING: vmlinux.o(.text+0x2e1cd0): Section mismatch in reference from the function s390_virtio_console_init() to the function .init.text:virtio_cons_early_init()
The function s390_virtio_console_init() references
the function __init virtio_cons_early_init().
This is often because s390_virtio_console_init lacks a __init
annotation or the annotation of virtio_cons_early_init is wrong.

Cc: Christian Borntraeger 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] qdio: fix section mismatch bug.

2008-08-01T14:39:35+00:00

Fix the two section mismatch warnings below.
This fixes two real bugs since the code which has __exit annotations
may already be gone when it is called.

WARNING: vmlinux.o(.init.text+0x1cc4a): Section mismatch in reference from the function init_QDIO() to the function .exit.text:qdio_setup_exit()
The function __init init_QDIO() references
a function __exit qdio_setup_exit().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __exit annotation of
qdio_setup_exit() so it may be used outside an exit section.

WARNING: vmlinux.o(.init.text+0x1cc7a): Section mismatch in reference from the function init_QDIO() to the function .exit.text:qdio_remove_perf_stats()
The function __init init_QDIO() references
a function __exit qdio_remove_perf_stats().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __exit annotation of
qdio_remove_perf_stats() so it may be used outside an exit section.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] qdio: make sure qdr is aligned to page size

2008-08-01T14:39:34+00:00

kzalloc does not guarantee the required alignment of qdr to page size,
use get_zeroed_page instead.

Signed-off-by: Jan Glauber

[S390] Add support for memory hot-remove.

2008-08-01T14:39:33+00:00

This patch enables memory hot-remove on s390.

Signed-off-by: Gerald Schaefer 
Signed-off-by: Heiko Carstens 
Cc: Martin Schwidefsky

[S390] cio: Memory allocation for idset changed.

2008-08-01T14:39:31+00:00

Memory allocation for the quite huge idset changed from
kzalloc to vmalloc.

Signed-off-by: Michael Ernst 
Signed-off-by: Martin Schwidefsky

[S390] qeth: preallocated qeth header for hiper socket

2008-08-01T14:39:31+00:00

For hiper socket devices this patch will economize the reallocation
of the tx skb data segment by allocating separate memory for the qdio
transport information (qeth header).

Signed-off-by: Frank Blaschka 
Signed-off-by: Martin Schwidefsky

[S390] nohz/sclp: disable timer on synchronous waits.

2008-08-01T14:39:30+00:00

sclp_sync_wait wait synchronously for an sclp interrupt and disables
timer interrupts. However on the irq enter paths there is an extra
check if a timer interrupt would be due and calls the timer callback.
This would schedule softirqs in the wrong context.
So introduce local_tick_enable/disable which prevents this.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] dasd: Add support for enhanced VM UID

2008-08-01T14:39:29+00:00

When z/VM provides two virtual devices (minidisks) that reside on the
same real device, both will receive the configuration data from the
real device and thus get the same uid. To fix this problem, z/VM
provides an additional configuration data record that allows to
distinguish between minidisks.
z/VM APAR VM64273 needs be installed so this fix has an effect.

Signed-off-by: Stefan Weinhuber 
Signed-off-by: Martin Schwidefsky