linux.git/drivers/s390, branch v2.6.29

[S390] fix "mem=" handling in case of standby memory

2009-02-19T14:19:19+00:00

Standby memory detected with the sclp interface gets always registered
with add_memory calls without considering the limitationt that the
"mem=" kernel paramater implies.
So fix this and only register standby memory that is below the specified
limit.
This fixes zfcpdump since it uses "mem=32M". In case there is appr.
2GB standby memory present all of usable memory would be used for the
struct pages needed for standby memory.

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

[S390] sclp: handle empty event buffers

2009-02-19T14:19:19+00:00

Handle a malformed hardware response which some versions of the
Support Element (SE) may present during SE restart and which otherwise
would result in an endless loop in function sclp_dispatch_evbufs.

Signed-off-by: Peter Oberparleiter 
Signed-off-by: Martin Schwidefsky

[S390] dasd: fix race in dasd timer handling

2009-02-11T09:37:40+00:00

In dasd_device_set_timer and dasd_block_set_timer we interpret the
return value of mod_timer in a wrong way. If the timer expires in
the small window between our check of timer_pending and the call to
mod_timer, then the timer will be set, mod_timer returns zero and
we will call add_timer for a timer that is already pending.
As del_timer and mod_timer do all the necessary checking themselves,
we can simplify our code and remove the race a the same time.

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

[S390] dasd: bus_id -> dev_name() conversion.

2009-02-11T09:37:40+00:00

bus_id usage crept in again; fix it.

Signed-off-by: Cornelia Huck 
Signed-off-by: Heiko Carstens

lcs: fix compilation for !CONFIG_IP_MULTICAST

2009-01-26T01:59:26+00:00

drivers/s390/net/lcs.c: In function 'lcs_new_device':
drivers/s390/net/lcs.c:2179: error: implicit declaration of function 'lcs_set_multicast_list'

Reported-by: Kamalesh Babulal 
Signed-off-by: Heiko Carstens 
Signed-off-by: Ursula Braun 
Signed-off-by: David S. Miller

qeth: fix usage of netdev_ops

2009-01-11T08:05:16+00:00

Have separate netdev_ops for OSA and HiperSocket/TR.

Signed-off-by: Frank Blaschka 
Signed-off-by: David S. Miller

[S390] qdio: fix broken pointer in case of CONFIG_DEBUG_FS is disabled

2009-01-09T11:15:07+00:00

If CONFIG_DEBUG_FS is disabled debugfs_create_file returns -ENODEV instead
of zero. Since the return value is stored and used at shutdown to remove
existing entries an OOPS may be triggered.

Add a check of the debugfs_create_file return value and in case of an error
set the entry to NULL so it will be ignored at shutdown.

Signed-off-by: Jan Glauber 
Signed-off-by: Martin Schwidefsky

[S390] dasd: add device attribute to disable blocking on lost paths

2009-01-09T11:15:05+00:00

When the connection between host and storage server is lost, the
dasd device driver usually blocks all I/O on affected devices and
waits for them to reappear. In some setups however it would be
better if the I/O is returned as error so that device can be
recovered by some other means, eg. in a raid or multipath setup.

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

[S390] dasd: send change uevents for dasd block devices

2009-01-09T11:15:05+00:00

When a DASD device enters or leaves the 'online' state we need to
trigger change events for the respective disk and partitions.
These extra events are needed because when disk and partitions are
first added, udev rules that try to read disk labels or other data
may fail as the disk may not yet be ready.

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

[S390] tape block: fix dependencies

2009-01-09T11:15:04+00:00

  CC      drivers/s390/char/tape_block.o
In file included from drivers/s390/char/tape_block.c:24:
drivers/s390/char/tape.h:159: warning: 'struct request' declared inside
parameter list

Adding the dependency of CONFIG_BLOCK to CONFIG_S390_TAPE_BLOCK.

Signed-off-by: Kamalesh Babulal 
Signed-off-by: Martin Schwidefsky