tree 215ef8ae71cd2b6bb6fec824d1db4a9f39db97ca
parent 595bf2aacae96d0f87352a1ff5476b79e52e212f
author Gerald Schaefer <geraldsc@de.ibm.com> 1117925013 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1117930380 -0700

[PATCH] s390: deadlock in appldata

The system might hang when using appldata_mem with high I/O traffic and a
large number of devices.  The spinlocks bdev_lock and swaplock are acquired
via calls to si_meminfo() and si_swapinfo() from a tasklet, i.e.  interrupt
context, which can lead to a deadlock.  Replace tasklet with work queue.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>