On Thu, Oct 17, 2024 at 10:17:12AM -0400, Steven Rostedt wrote:
> On Wed, 16 Oct 2024 17:01:28 -0400
> Steven Rostedt wrote:
>
> > If this is only needed for module load, can we at least still use the
> > text_poke_early() at boot up?
> >
> > if (ftrace_poke_late) {
> > text_poke
On Wed, Oct 16, 2024 at 03:24:21PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> Add an API that will allow updates of the direct/linear map for a set of
> physically contiguous pages.
>
> It will be used in the following patches.
>
> Signed-off-by: Mike Rapoport (Microsof
On Wed, Oct 16, 2024 at 03:24:18PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> vmalloc allocations with VM_ALLOW_HUGE_VMAP that do not explicitly
> specify node ID will use huge pages only if size_per_node is larger than
> a huge page.
> Still the actual allocated memory i
On Wed, Oct 16, 2024 at 03:24:19PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> Several architectures support text patching, but they name the header
> files that declare patching functions differently.
>
> Make all such headers consistently named text-patching.h and add a
On Wed, Oct 16, 2024 at 03:24:20PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> In order to support ROX allocations for module text, it is necessary to
> handle modifications to the code, such as relocations and alternatives
> patching, without write access to that memory.
On Wed, Oct 16, 2024 at 03:24:23PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> Using large pages to map text areas reduces iTLB pressure and improves
> performance.
>
> Extend execmem_alloc() with an ability to use huge pages with ROX
> permissions as a cache for smaller
On Wed, Oct 16, 2024 at 03:24:24PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> Enable execmem's cache of PMD_SIZE'ed pages mapped as ROX for module
> text allocations on 64 bit.
>
> Signed-off-by: Mike Rapoport (Microsoft)
Reviewed-by: Luis Chamberlain
Luis
___
On Wed, Oct 16, 2024 at 03:24:16PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> Hi,
>
> This is an updated version of execmem ROX caches.
>
> Andrew, Luis, there is a conflict with Suren's "page allocation tag
> compression" patches:
>
> https://lore.kernel.org/all/20241
On Wed, Oct 16, 2024 at 03:24:17PM +0300, Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)"
>
> There are a couple of declarations that depend on CONFIG_MMU in
> include/linux/vmalloc.h spread all over the file.
>
> Group them all together to improve code readability.
>
> No functional c
