Any sense of how costly it is to use spin_lock_irq's vs spin_lock (across different architectures) ? Isn't rwsem used very widely ?
Regards Suparna On Wed, Mar 09, 2005 at 10:33:58AM +0000, David Howells wrote: > Andrew Morton <[EMAIL PROTECTED]> wrote: > > > If we want to take the spinlock from interrupt context, the non-interrupt > > context code needs to do spin_lock_irq(), not spin_lock(). > > Yeah. I think I had a patch for that somewhere, but I think Linus turned it > down. I can't find any emails on that subject though. I'll knock together a > new patch for it. > > David > -- > To unsubscribe, send a message with 'unsubscribe linux-aio' in > the body to [EMAIL PROTECTED] For more info on Linux AIO, > see: http://www.kvack.org/aio/ > Don't email: <a href=mailto:"[EMAIL PROTECTED]">[EMAIL PROTECTED]</a> -- Suparna Bhattacharya ([EMAIL PROTECTED]) Linux Technology Center IBM Software Lab, India - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
