> > If the above observations are correct, it seems that I have to either > > extend BLKFLSBUF to some invalidate such memory maps (I'm completely > > ignorant in that field, is it even possible?), or look for other > > solutions. > Well, you could unmap the pages of block device that are mapped in your > new ioctl but I don't think it's easily possible to disallow userspace to fault the > pages back behind your back. And that could be a problem for you. I'm not sure I understand what "I don't think it's easily possible to disallow userspace to fault the pages back behind your back" means, could you explain? I definitely don't care what happens to the process that dared to memory map the block device, this configuration is not supported in my environment. Is this what you mean? -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
