kernel.git/net/iucv, branch linux-2.6.23.y

[S390] Convert to smp_call_function_single.

2007-07-27T10:29:17Z

smp_call_function_single now has the same semantics as s390's smp_call_function_on. Therefore convert to the *single variant and get rid of some architecture specific code. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[AF_IUCV]: Add lock when updating accept_q

2007-07-15T02:04:25Z

The accept_queue of an af_iucv socket will be corrupted, if adding and deleting of entries in this queue occurs at the same time (connect request from one client, while accept call is processed for another client). Solution: add locking when updating accept_q Signed-off-by: Ursula Braun Acked-by: Frank Pavlic Signed-off-by: David S. Miller

[AF_IUCV]: Avoid deadlock between iucv_path_connect and tasklet.

2007-07-15T02:03:41Z

An iucv deadlock may occur, where one CPU is spinning on the iucv_table_lock for iucv_tasklet_fn(), while another CPU is holding the iucv_table_lock for an iucv_path_connect() and is waiting for the first CPU in an smp_call_function. Solution: replace spin_lock in iucv_tasklet_fn by spin_trylock and reschedule tasklet in case of non-granted lock. Signed-off-by: Ursula Braun Acked-by: Frank Pavlic Signed-off-by: David S. Miller

[AF_IUCV]: Improve description of IUCV and AFIUCV configuration options.

2007-07-15T02:03:00Z

Signed-off-by: Jennifer Hunt Signed-off-by: Ursula Braun >braunu@de.ibm.com> Acked-by: Frank Pavlic Signed-off-by: David S. Miller

Add suspend-related notifications for CPU hotplug

2007-05-09T19:30:56Z

Since nonboot CPUs are now disabled after tasks and devices have been frozen and the CPU hotplug infrastructure is used for this purpose, we need special CPU hotplug notifications that will help the CPU-hotplug-aware subsystems distinguish normal CPU hotplug events from CPU hotplug events related to a system-wide suspend or resume operation in progress. This patch introduces such notifications and causes them to be used during suspend and resume transitions. It also changes all of the CPU-hotplug-aware subsystems to take these notifications into consideration (for now they are handled in the same way as the corresponding "normal" ones). [oleg@tv-sign.ru: cleanups] Signed-off-by: Rafael J. Wysocki Cc: Gautham R Shenoy Cc: Pavel Machek Signed-off-by: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[AF_IUCV]: Compile fix - adopt to skbuff changes.

2007-05-05T18:41:18Z

From: Heiko Carstens CC [M] net/iucv/af_iucv.o net/iucv/af_iucv.c: In function `iucv_fragment_skb': net/iucv/af_iucv.c:984: error: structure has no member named `h' net/iucv/af_iucv.c:985: error: structure has no member named `nh' net/iucv/af_iucv.c:988: error: incompatible type for argument 1 of `skb_queue_tail' Signed-off-by: Heiko Carstens Signed-off-by: David S. Miller

[AF_IUCV/IUCV] : Add missing section annotations

2007-05-04T19:23:27Z

Add missing section annotations and found and fixed some Coding Style issues. Signed-off-by: Heiko Carstens Signed-off-by: Frank Pavlic

[AF_IUCV]: Implementation of a skb backlog queue

2007-05-04T19:22:07Z

With the inital implementation we missed to implement a skb backlog queue . The result is that socket receive processing tossed packets. Since AF_IUCV connections are working synchronously it leads to connection hangs. Problems with read, close and select also occured. Using a skb backlog queue is fixing all of these problems . Signed-off-by: Jennifer Hunt Signed-off-by: Frank Pavlic Signed-off-by: David S. Miller

[AF_IUCV/IUCV]: smp_call_function deadlock

2007-04-29T06:03:59Z

Calling smp_call_function can lead to a deadlock if it is called from tasklet context. Fixing this deadlock requires to move the smp_call_function from the tasklet context to a work queue. To do that queue the path pending interrupts to a separate list and move the path cleanup out of iucv_path_sever to iucv_path_connect and iucv_path_pending. This creates a new requirement for iucv_path_connect: it may not be called from tasklet context anymore. Also fixed compile problem for CONFIG_HOTPLUG_CPU=n and another one when walking the cpu_online mask. When doing this, we must disable cpu hotplug. Signed-off-by: Frank Pavlic Signed-off-by: Martin Schwidefsky Signed-off-by: David S. Miller

[AF_IUCV]: Fix compilation on s390-up

2007-04-26T08:02:51Z

CC [M] net/iucv/iucv.o net/iucv/iucv.c: In function 'iucv_init': net/iucv/iucv.c:1556: error: 'iucv_cpu_notifier' undeclared (first use in this function) Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: David S. Miller