sounds like u need a mutex or semaphore lock. not the spinlock type, nevertheless, pick your choice: c06f5040 T _read_trylock c06f5028 T _spin_trylock c06f5154 T _spin_trylock_bh c06f5061 T _write_trylock c0444958 T down_read_trylock c0444ec4 T down_trylock c0444978 T down_write_trylock c06f4096 T mutex_trylock c044e86e t rt_mutex_slowtrylock c06f4844 T rt_mutex_trylock c067ccc2 T rtnl_trylock On Mon, Mar 30, 2009 at 5:04 AM, Kristian Evensen <kristrev@xxxxxxxxxx> wrote: > Hello, > > I am working on a kernel module and need read/write locks of the bh-kind due > to the module needing to process input from a proc-variable. To avoid but sorry, why "proc-variable" need bh-kind of lock? > deadlocks, I need to use trylock to determine if somebody is holding the > lock or not. Unfortunately, I cannot find a trylock_bh for the > read/write-lock and I am just curious is to why? Does it not make sense, > have I missed something in the kernel code or is it because of something > else? > > Thanks, > Kristian > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx > Please read the FAQ at http://kernelnewbies.org/FAQ > > -- Regards, Peter Teoh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
