kernel/git/stable/linux.git/drivers/s390/char, branch linux-3.1.y

[S390] memory hotplug: only unassign assigned increments

2011-08-24T15:15:24+00:00

Make sure that only assigned storage increments are unassigned when attaching a storage element. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] sclp_async: Use kstrtoul_from_user

2011-08-03T14:44:20+00:00

This patch replaces the code for getting an unsigned long from a userspace buffer by a simple call to kstroul_from_user. This makes it easier to read and less error prone. Signed-off-by: Peter Huewe Signed-off-by: Heiko Carstens

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in (atomic_inc_not_zero() for now) to Signed-off-by: Arun Sharma Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Cc: Eric Dumazet Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[S390] kconfig: remove tape interface support comment

2011-07-24T08:48:00+00:00

There is nothing below the menu entry "S/390 tape interface support". Remove it. Signed-off-by: Martin Schwidefsky

PM: Improve error code of pm_notifier_call_chain()

2011-07-15T21:58:20+00:00

This enables pm_notifier_call_chain() to get the actual error code in the callback rather than always assume -EINVAL by converting all PM notifier calls to return encapsulate error code with notifier_from_errno(). Signed-off-by: Akinobu Mita Signed-off-by: Rafael J. Wysocki

[S390] irq: merge irq.c and s390_ext.c

2011-05-26T07:48:24+00:00

Merge irq.c and s390_ext.c into irq.c. That way all external interrupt related functions are together. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] irq: fix service signal external interrupt handling

2011-05-26T07:48:24+00:00

Interrupt sources like pfault, sclp, dasd_diag and virtio all use the service signal external interrupt subclass mask in control register 0 to enable and disable the corresponding interrupt. Because no reference counting is implemented each subsystem thinks it is the only user of subclass and sets and clears the bit like it wants. This leads to case that unloading the dasd diag module under z/VM causes both sclp and pfault interrupts to be masked. The result will be locked up system sooner or later. Fix this by introducing a new way to set (register) and clear (unregister) the service signal subclass mask bit in cr0. Also convert all drivers. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] get CPC image name

2011-05-23T08:24:32+00:00

Provide sysfs attributes that contain the CPC name and the HMC network name of the machine the operating system is running on. This information is retrieved with the operation communication parameters (OCF) sclp interface. Signed-off-by: Martin Schwidefsky

[S390] sclp: event buffer dissection

2011-05-23T08:24:31+00:00

Move gds vector/subvector find functions to the sclp header file. Simplify event buffer dissection in sclp tty code. Signed-off-by: Martin Schwidefsky

[S390] sclp: remove unnecessary sendmask check

2011-05-23T08:24:31+00:00

The sendmask check is not needed. Remove it. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky