On Wed, Dec 09, 2009 at 04:39:06PM -0600, James Bottomley wrote: > Realistically, if I were thinking about the API properly, I'd probably > have kunmap flush the kernel view if the dirty bit were set, thus > relieving the user of the need to know anything at all about any of > this. Which dirty bit are you referring to? New page cache pages do not have any dirty bit for this. There is PG_arch_1, but this is set by flush_dcache_page on architectures playing the delayed-dcache-flush game... so making a call to some cache flushing function conditional on it isn't going to work. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
