search for: vmap_page_range

...rrent copy-user model requires. > > As a rule of thumb any arch where copy_user_page doesn't define as > copy_page will require some additional cache flushing after the > kmap. Supposedly with vmap, the vmap layer should have taken care of > that (I didn't verify that yet). vmap_page_range()/free_unmap_vmap_area() will call fluch_cache_vmap()/flush_cache_vunmap(). So vmap layer should be ok. Thanks > > There are some accessories like copy_to_user_page() > copy_from_user_page() that could work and obviously defines to raw > memcpy on x86 (the main cons is they don'...

Hi, when mounting an intentionally corrupted btrfs filesystem i get the following warning and bug message. The image can be found here www.cccmz.de/~snakebyte/btrfs.2.img.bck.bz2 [ 297.406152] device fsid e14cf01de423381a-4bd40b603870018a <6>devid 2147483649 transid 9 /dev/loop0 [ 297.411937] ------------[ cut here ]------------ [ 297.412207] WARNING: at fs/btrfs/disk-io.c:805

On Mon, Mar 11, 2019 at 03:40:31PM +0800, Jason Wang wrote: > > On 2019/3/9 ??3:48, Andrea Arcangeli wrote: > > Hello Jeson, > > > > On Fri, Mar 08, 2019 at 04:50:36PM +0800, Jason Wang wrote: > > > Just to make sure I understand here. For boosting through huge TLB, do > > > you mean we can do that in the future (e.g by mapping more userspace > >

On Mon, Mar 11, 2019 at 03:40:31PM +0800, Jason Wang wrote: > > On 2019/3/9 ??3:48, Andrea Arcangeli wrote: > > Hello Jeson, > > > > On Fri, Mar 08, 2019 at 04:50:36PM +0800, Jason Wang wrote: > > > Just to make sure I understand here. For boosting through huge TLB, do > > > you mean we can do that in the future (e.g by mapping more userspace > >