correct use of lock_kernel() - help! please

[Iain Sandoe]

Hi,

In the driver I am working on (dmasound) someone has placed lock/unlock
_kernel() pairs around whole functions.

This means that (e.g.) if we release the sound device with a lot of
un-played samples at a low-ish sample rate...

AFACIT we could hold the kernel locked for *several seconds*

What do I really need to protect with lock/unlock pairs?

or am I missing something (it wouldn't be the first time ..) ;-?

ciao,
Iain.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/