Hi, On Thu, May 14, 2020 at 07:05:45PM +0530, afzal mohammed wrote:
> So if we make VMSPLIT_4G_4G, depends on !HIGH_MEMORY (w/ mention of > caveat in Kconfig help that this is meant for platforms w/ <=4GB), then > we can do copy_{from,to}_user the same way currently do, and no need to > do the user page pinning & kmap, right ? i think user page pinning is still required, but kmap can be avoided by using lowmem corresponding to that page, right ?, or am i completely wrong ? Regards afzal