Re: [PATCH RFC v2 16/27] arm64: mte: Manage tag storage on page allocation

Hi. On Wed, Nov 29, 2023 at 01:33:37PM +, Alexandru Elisei wrote: > Hi, > > On Wed, Nov 29, 2023 at 06:10:40PM +0900, Hyesoo Yu wrote: > > On Sun, Nov 19, 2023 at 04:57:10PM +, Alexandru Elisei wrote: > > > [..] > > > +static int order_to_num_blocks(int order) > > > +{ > > > + return

Re: [PATCH RFC v2 16/27] arm64: mte: Manage tag storage on page allocation

Hi, On Wed, Nov 29, 2023 at 06:10:40PM +0900, Hyesoo Yu wrote: > On Sun, Nov 19, 2023 at 04:57:10PM +, Alexandru Elisei wrote: > > [..] > > +static int order_to_num_blocks(int order) > > +{ > > + return max((1 << order) / 32, 1); > > +} > > [..] > > +int reserve_tag_storage(struct page

Re: [PATCH RFC v2 16/27] arm64: mte: Manage tag storage on page allocation

On Sun, Nov 19, 2023 at 04:57:10PM +, Alexandru Elisei wrote: > Reserve tag storage for a tagged page by migrating the contents of the tag > storage (if in use for data) and removing the tag storage pages from the > page allocator by calling alloc_contig_range(). > > When all the associated

[PATCH RFC v2 16/27] arm64: mte: Manage tag storage on page allocation

Reserve tag storage for a tagged page by migrating the contents of the tag storage (if in use for data) and removing the tag storage pages from the page allocator by calling alloc_contig_range(). When all the associated tagged pages have been freed, return the tag storage pages back to the page