Hi... On Fri, May 27, 2011 at 17:49, sandeep kumar <coolsandyforyou@xxxxxxxxx> wrote: > Now the question is can we memory map a one device resource(say some > iomemory) to two different memory locations? > the other way of seeing at this question is, > Will ioremap() gives different 'virtual addresses' when called multiple > times? I agree with Daniel, but I suggest you to think about it: in reading operation, maybe it's ok, no concurrency issues need to be taken care...but how about writing? unless we're sure they are atomically or uninterruptible, i see a chance that race condition might happen here. Actually it's similar when you map a file into two different VMA and write into it, correct? -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
