On Mon, Jun 12, 2023 at 02:04:07PM -0700, Vishal Moola (Oracle) wrote:
> The page table members are now split out into their own ptdesc struct.
> Remove them from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/lin
On Mon, Jun 12, 2023 at 02:04:07PM -0700, Vishal Moola (Oracle) wrote:
> The page table members are now split out into their own ptdesc struct.
> Remove them from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/lin
On Mon, Jun 12, 2023 at 02:04:07PM -0700, Vishal Moola (Oracle) wrote:
> The page table members are now split out into their own ptdesc struct.
> Remove them from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/lin
ons. Convert
> these to use pagetable_alloc() and ptdesc_address() instead to help
> standardize page tables further.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/include/asm/pgalloc.h | 4 +-
> arch/s390/include/asm/tlb.h |
ons. Convert
> these to use pagetable_alloc() and ptdesc_address() instead to help
> standardize page tables further.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/include/asm/pgalloc.h | 4 +-
> arch/s390/include/asm/tlb.h |
ons. Convert
> these to use pagetable_alloc() and ptdesc_address() instead to help
> standardize page tables further.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/include/asm/pgalloc.h | 4 +-
> arch/s390/include/asm/tlb.h |
ptdesc_address() instead to help
> standardize page tables further.
>
> Signed-off-by: Vishal Moola (Oracle)
With folding
ptdesc->_pt_s390_gaddr = 0;
into pagetable_free()
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/mm/gmap.c | 230 -
ptdesc_address() instead to help
> standardize page tables further.
>
> Signed-off-by: Vishal Moola (Oracle)
With folding
ptdesc->_pt_s390_gaddr = 0;
into pagetable_free()
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/mm/gmap.c | 230 -
ptdesc_address() instead to help
> standardize page tables further.
>
> Signed-off-by: Vishal Moola (Oracle)
With folding
ptdesc->_pt_s390_gaddr = 0;
into pagetable_free()
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/mm/gmap.c | 230 -
On Mon, Jun 12, 2023 at 02:04:04PM -0700, Vishal Moola (Oracle) wrote:
> In order to split struct ptdesc from struct page, convert various
> functions to use ptdescs.
>
> Some of the functions use the *get*page*() helper functions. Convert
Nit: *get_free_page*()
>
On Mon, Jun 12, 2023 at 02:04:04PM -0700, Vishal Moola (Oracle) wrote:
> In order to split struct ptdesc from struct page, convert various
> functions to use ptdescs.
>
> Some of the functions use the *get*page*() helper functions. Convert
Nit: *get_free_page*()
>
On Mon, Jun 12, 2023 at 02:04:04PM -0700, Vishal Moola (Oracle) wrote:
> In order to split struct ptdesc from struct page, convert various
> functions to use ptdescs.
>
> Some of the functions use the *get*page*() helper functions. Convert
Nit: *get_free_page*()
>
On Mon, Jun 12, 2023 at 02:04:03PM -0700, Vishal Moola (Oracle) wrote:
> In order to split struct ptdesc from struct page, convert various
> functions to use ptdescs.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/powerpc/mm/book3s64/
On Mon, Jun 12, 2023 at 02:04:03PM -0700, Vishal Moola (Oracle) wrote:
> In order to split struct ptdesc from struct page, convert various
> functions to use ptdescs.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/powerpc/mm/book3s64/
On Mon, Jun 12, 2023 at 02:04:03PM -0700, Vishal Moola (Oracle) wrote:
> In order to split struct ptdesc from struct page, convert various
> functions to use ptdescs.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/powerpc/mm/book3s64/
"create ... make"
I like the second form more.
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/mm.h | 56 ++
> 1 file changed, 42 insertions(+), 14 deletions(-)
>
> diff --git a/
"create ... make"
I like the second form more.
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/mm.h | 56 ++
> 1 file changed, 42 insertions(+), 14 deletions(-)
>
> diff --git a/
"create ... make"
I like the second form more.
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/mm.h | 56 ++
> 1 file changed, 42 insertions(+), 14 deletions(-)
>
> diff --git a/
On Mon, Jun 12, 2023 at 02:04:01PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:04:01PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:04:01PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:04:00PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:04:00PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:04:00PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:59PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:59PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:59PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:58PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:57PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/x86
On Mon, Jun 12, 2023 at 02:03:58PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:58PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> inclu
On Mon, Jun 12, 2023 at 02:03:56PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> incl
On Mon, Jun 12, 2023 at 02:03:57PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/x86
On Mon, Jun 12, 2023 at 02:03:57PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> arch/x86
On Mon, Jun 12, 2023 at 02:03:56PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> incl
On Mon, Jun 12, 2023 at 02:03:56PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> incl
l Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/mm.h | 8
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index f184f1eba85d..088b7664f897 100644
> --- a/include/linux/mm.h
> +++ b/in
l Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/mm.h | 8
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index f184f1eba85d..088b7664f897 100644
> --- a/include/linux/mm.h
> +++ b/in
l Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/mm.h | 8
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index f184f1eba85d..088b7664f897 100644
> --- a/include/linux/mm.h
> +++ b/in
On Mon, Jun 12, 2023 at 02:03:54PM -0700, Vishal Moola (Oracle) wrote:
> Introduce utility functions setting the foundation for ptdescs. These
> will also assist in the splitting out of ptdesc from struct page.
>
> Functions that focus on the descriptor are prefixed with ptdesc_* while
>
On Mon, Jun 12, 2023 at 02:03:54PM -0700, Vishal Moola (Oracle) wrote:
> Introduce utility functions setting the foundation for ptdescs. These
> will also assist in the splitting out of ptdesc from struct page.
>
> Functions that focus on the descriptor are prefixed with ptdesc_* while
>
On Mon, Jun 12, 2023 at 02:03:54PM -0700, Vishal Moola (Oracle) wrote:
> Introduce utility functions setting the foundation for ptdescs. These
> will also assist in the splitting out of ptdesc from struct page.
>
> Functions that focus on the descriptor are prefixed with ptdesc_* while
>
On Mon, Jun 12, 2023 at 02:03:53PM -0700, Vishal Moola (Oracle) wrote:
> Currently, page table information is stored within struct page. As part
> of simplifying struct page, create struct ptdesc for page table
> information.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mik
On Mon, Jun 12, 2023 at 02:03:53PM -0700, Vishal Moola (Oracle) wrote:
> Currently, page table information is stored within struct page. As part
> of simplifying struct page, create struct ptdesc for page table
> information.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mik
On Mon, Jun 12, 2023 at 02:03:53PM -0700, Vishal Moola (Oracle) wrote:
> Currently, page table information is stored within struct page. As part
> of simplifying struct page, create struct ptdesc for page table
> information.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mik
, otherwise
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/mm/pgalloc.c | 38 +++---
> 1 file changed, 15 insertions(+), 23 deletions(-)
>
> diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
> index 66ab68db9842..6b99932abc66 100644
> -
, otherwise
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/mm/pgalloc.c | 38 +++---
> 1 file changed, 15 insertions(+), 23 deletions(-)
>
> diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
> index 66ab68db9842..6b99932abc66 100644
> -
, otherwise
Acked-by: Mike Rapoport (IBM)
> ---
> arch/s390/mm/pgalloc.c | 38 +++---
> 1 file changed, 15 insertions(+), 23 deletions(-)
>
> diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
> index 66ab68db9842..6b99932abc66 100644
> -
d be the right place for that.
Otherwise:
Acked-by: Mike Rapoport (IBM)
> This also reverts commit 7e25de77bc5ea ("s390/mm: use pmd_pgtable_page()
> helper in __gmap_segment_gaddr()") which had s390 use
> pmd_pgtable_page() to get a gmap page table, as pmd_pgtable_page()
&g
d be the right place for that.
Otherwise:
Acked-by: Mike Rapoport (IBM)
> This also reverts commit 7e25de77bc5ea ("s390/mm: use pmd_pgtable_page()
> helper in __gmap_segment_gaddr()") which had s390 use
> pmd_pgtable_page() to get a gmap page table, as pmd_pgtable_page()
&g
d be the right place for that.
Otherwise:
Acked-by: Mike Rapoport (IBM)
> This also reverts commit 7e25de77bc5ea ("s390/mm: use pmd_pgtable_page()
> helper in __gmap_segment_gaddr()") which had s390 use
> pmd_pgtable_page() to get a gmap page table, as pmd_pgtable_page()
&g
the memory here.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/page-flags.h | 20 ++--
> 1 file changed, 18 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
>
the memory here.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/page-flags.h | 20 ++--
> 1 file changed, 18 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
>
the memory here.
>
> Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
> ---
> include/linux/page-flags.h | 20 ++--
> 1 file changed, 18 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
>
vger.kernel.org
> Cc: linux...@lists.infradead.org
> Cc: linux-a...@vger.kernel.org
> Cc: linux...@kvack.org
> Suggested-by: Linus Torvalds
> Signed-off-by: Rick Edgecombe
> Link:
> https://lore.kernel.org/lkml/CAHk-=wizjsu7c9sfyzb3q04108stghff2wfbokgccgw7riz...@mail.gmail.com/
Reviewed-by: Mike Rapoport (IBM)
--
Sincerely yours,
Mike.
On Tue, Jun 13, 2023 at 02:56:14PM -0400, Kent Overstreet wrote:
> On Thu, Jun 08, 2023 at 09:41:16PM +0300, Mike Rapoport wrote:
> > On Tue, Jun 06, 2023 at 11:21:59AM -0700, Song Liu wrote:
> > > On Mon, Jun 5, 2023 at 3:09 AM Mark Rutland wrote:
> > >
> > >
ux-arm-ker...@lists.infradead.org
> Cc: linux-s...@vger.kernel.org
> Cc: xen-devel@lists.xenproject.org
> Cc: linux-a...@vger.kernel.org
> Cc: linux...@kvack.org
> Signed-off-by: Rick Edgecombe
Reviewed-by: Mike Rapoport (IBM)
--
Sincerely yours,
Mike.
vger.kernel.org
> Cc: linux...@lists.infradead.org
> Cc: linux-a...@vger.kernel.org
> Cc: linux...@kvack.org
> Suggested-by: Linus Torvalds
> Signed-off-by: Rick Edgecombe
> Link:
> https://lore.kernel.org/lkml/CAHk-=wizjsu7c9sfyzb3q04108stghff2wfbokgccgw7riz...@mail.gmail.com/
vger.kernel.org
> Cc: linux-um@lists.infradead.org
> Cc: linux-a...@vger.kernel.org
> Cc: linux...@kvack.org
> Suggested-by: Linus Torvalds
> Signed-off-by: Rick Edgecombe
> Link:
> https://lore.kernel.org/lkml/CAHk-=wizjsu7c9sfyzb3q04108stghff2wfbokgccgw7riz...@mail.gmai
On Fri, Jun 09, 2023 at 10:02:16AM -0700, Song Liu wrote:
> On Thu, Jun 8, 2023 at 11:41 AM Mike Rapoport wrote:
> >
> > On Tue, Jun 06, 2023 at 11:21:59AM -0700, Song Liu wrote:
> > > On Mon, Jun 5, 2023 at 3:09 AM Mark Rutland wrote:
> > >
> > > [
On Tue, Jun 06, 2023 at 11:21:59AM -0700, Song Liu wrote:
> On Mon, Jun 5, 2023 at 3:09 AM Mark Rutland wrote:
>
> [...]
>
> > > > > Can you give more detail on what parameters you need? If the only
> > > > > extra
> > > > > parameter is just "does this allocation need to live close to kernel
ing Team: A Band of Misfits' Improbable Crusade to Save
the World from Cybercrime with Renee Dudley and Daniel Golden Recorded
January 25, 2023 <https://www.youtube.com/watch?v=ntTb1q5zu84>
Maureen Johnson ("Nine Liars") in Conversation with Jennifer Lynn Barnes
("The Final Gamb
On Mon, Jun 05, 2023 at 11:09:34AM +0100, Mark Rutland wrote:
> On Mon, Jun 05, 2023 at 12:20:40PM +0300, Mike Rapoport wrote:
> > On Fri, Jun 02, 2023 at 10:35:09AM +0100, Mark Rutland wrote:
> >
> > It sill can be achieved with a single jit_alloc_arch_params(), just by
>
On Mon, Jun 05, 2023 at 04:10:21PM +, Edgecombe, Rick P wrote:
> On Mon, 2023-06-05 at 11:11 +0300, Mike Rapoport wrote:
> > On Sun, Jun 04, 2023 at 10:52:44PM -0400, Steven Rostedt wrote:
> > > On Thu, 1 Jun 2023 16:54:36 -0700
> > > Nadav Amit wrote:
> &g
On Fri, Jun 02, 2023 at 10:35:09AM +0100, Mark Rutland wrote:
> On Thu, Jun 01, 2023 at 02:14:56PM -0400, Kent Overstreet wrote:
> > On Thu, Jun 01, 2023 at 05:12:03PM +0100, Mark Rutland wrote:
> > > For a while I have wanted to give kprobes its own allocator so that it
> > > can work
> > > even
On Sun, Jun 04, 2023 at 10:52:44PM -0400, Steven Rostedt wrote:
> On Thu, 1 Jun 2023 16:54:36 -0700
> Nadav Amit wrote:
>
> > > The way text_poke() is used here, it is creating a new writable alias
> > > and flushing it for *each* write to the module (like for each write of
> > > an individual
On Thu, Jun 01, 2023 at 12:30:50PM +0200, Peter Zijlstra wrote:
> On Thu, Jun 01, 2023 at 01:12:56PM +0300, Mike Rapoport wrote:
>
> > +static void __init_or_module do_text_poke(void *addr, const void *opcode,
> > size_t len)
> > +{
> > + if
From: "Mike Rapoport (IBM)"
When STRICT_KERNEL_RWX or STRICT_MODULE_RWX is enabled, force text
allocations to use KERNEL_PAGE_ROX.
Signed-off-by: Mike Rapoport (IBM)
---
arch/Kconfig | 3 +++
arch/x86/Kconfig | 1 +
arch/x86/kernel/ftrace.c | 3 ---
arch/x86
before writing to it and to protect memory in the
end.
Signed-off-by: Song Liu
Co-developed-by: Mike Rapoport (IBM)
Signed-off-by: Mike Rapoport (IBM)
---
arch/x86/kernel/alternative.c | 43 +++
arch/x86/kernel/ftrace.c | 41
From: Song Liu
ftrace_process_locs sorts module mcount, which is inside RO memory. Add a
ftrace_swap_func so that archs can use RO-memory-poke function to do the
sorting.
Signed-off-by: Song Liu
---
include/linux/ftrace.h | 2 ++
kernel/trace/ftrace.c | 13 -
2 files changed, 14
From: "Mike Rapoport (IBM)"
When executable memory will be allocated as ROX it won't be possible to
update it using memset() and memcpy().
Introduce jit_update_copy() and jit_update_set() APIs and use them in
modules loading code instead of memcpy() and memset().
Signed-off-by: Mik
From: "Mike Rapoport (IBM)"
kprobes depended on CONFIG_MODULES because it has to allocate memory for
code.
Since code allocations are now implemented with jitalloc, kprobes can be
enabled in non-modular kernels.
Add #ifdef CONFIG_MODULE guars for the code dealing with kprobes insi
From: "Mike Rapoport (IBM)"
jitalloc does not depend on modules, on the contrary modules use
jitalloc.
To make jitalloc available when CONFIG_MODULES=n, for instance for
kprobes, split jit_alloc_params initialization out from
arch/kernel/module.c and compile it when CONFIG_JIT_ALLOC
From: "Mike Rapoport (IBM)"
Dynamic ftrace must allocate memory for code and this was impossible
without CONFIG_MODULES.
With jitalloc separated from the modules code, the jit_text_alloc() is
available regardless of CONFIG_MODULE.
Move jitalloc initialization to x86/mm/init.c so tha
From: "Mike Rapoport (IBM)"
Data related to code allocations, such as module data section, need to
comply with architecture constraints for its placement and its
allocation right now was done using jit_text_alloc().
Create a dedicated API for allocating data related to code a
From: "Mike Rapoport (IBM)"
Define default parameters for address range for code allocations
using the current values in module_alloc() and make jit_text_alloc() use
these defaults when an architecure does not supply its specific
parameters.
With this, jit_text_alloc() impleme
From: "Mike Rapoport (IBM)"
Extend jitalloc parameters to accommodate more complex overrides of
module_alloc() by architectures.
This includes specification of a fallback range required by arm, arm64
and powerpc and support for allocation of KASAN shadow required by
arm64, s3
From: "Mike Rapoport (IBM)"
Several architectures override module_alloc() only to define address
range for code allocations different than VMALLOC address space.
Provide a generic implementation in jitalloc that uses the parameters
for address space ranges, required alignmen
From: "Mike Rapoport (IBM)"
module_alloc() is used everywhere as a mean to allocate memory for code.
Beside being semantically wrong, this unnecessarily ties all subsystmes
that need to allocate code, such as ftrace, kprobes and BPF to modules
and puts the burden of code
From: "Mike Rapoport (IBM)"
nios2 uses kmalloc() to implement module_alloc() because CALL26/PCREL26
cannot reach all of vmalloc address space.
Define module space as 32MiB below the kernel base and switch nios2 to
use vmalloc for module allocations.
Suggested-by: Thomas Gleixner
From: "Mike Rapoport (IBM)"
Hi,
module_alloc() is used everywhere as a mean to allocate memory for code.
Beside being semantically wrong, this unnecessarily ties all subsystmes
that need to allocate code, such as ftrace, kprobes and BPF to modules
and puts the burden of code
tion with Mass DPH Recorded January 26, 2023
<https://www.youtube.com/watch?v=Yo4a803fO1U>
The Ransomware Hunting Team: A Band of Misfits' Improbable Crusade to Save
the World from Cybercrime with Renee Dudley and Daniel Golden Recorded
January 25, 2023 <https://www.youtube.com/watch?v=ntTb1
On Sat, May 27, 2023 at 04:09:31PM +0100, Matthew Wilcox wrote:
> On Sat, May 27, 2023 at 01:41:44PM +0300, Mike Rapoport wrote:
> > Sorry if I wasn't clear, by "page table page" I meant the page (or memory
> > for that matter) for actual page table rather th
On Sat, May 27, 2023 at 04:09:31PM +0100, Matthew Wilcox wrote:
> On Sat, May 27, 2023 at 01:41:44PM +0300, Mike Rapoport wrote:
> > Sorry if I wasn't clear, by "page table page" I meant the page (or memory
> > for that matter) for actual page table rather th
On Sat, May 27, 2023 at 04:09:31PM +0100, Matthew Wilcox wrote:
> On Sat, May 27, 2023 at 01:41:44PM +0300, Mike Rapoport wrote:
> > Sorry if I wasn't clear, by "page table page" I meant the page (or memory
> > for that matter) for actual page table rather th
On Thu, May 25, 2023 at 01:53:24PM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:26 PM Mike Rapoport wrote:
> >
> > On Thu, May 25, 2023 at 11:04:28AM -0700, Vishal Moola wrote:
> > > On Thu, May 25, 2023 at 2:10 AM Mike Rapoport wrote:
> > > > > +
On Thu, May 25, 2023 at 01:53:24PM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:26 PM Mike Rapoport wrote:
> >
> > On Thu, May 25, 2023 at 11:04:28AM -0700, Vishal Moola wrote:
> > > On Thu, May 25, 2023 at 2:10 AM Mike Rapoport wrote:
> > > > > +
On Thu, May 25, 2023 at 01:53:24PM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:26 PM Mike Rapoport wrote:
> >
> > On Thu, May 25, 2023 at 11:04:28AM -0700, Vishal Moola wrote:
> > > On Thu, May 25, 2023 at 2:10 AM Mike Rapoport wrote:
> > > > > +
On Thu, May 25, 2023 at 11:04:28AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 2:10 AM Mike Rapoport wrote:
> > > +
> > > +static inline struct ptdesc *ptdesc_alloc(gfp_t gfp, unsigned int order)
> > > +{
> > > + struct page *pag
On Thu, May 25, 2023 at 11:04:28AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 2:10 AM Mike Rapoport wrote:
> > > +
> > > +static inline struct ptdesc *ptdesc_alloc(gfp_t gfp, unsigned int order)
> > > +{
> > > + struct page *pag
On Thu, May 25, 2023 at 11:04:28AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 2:10 AM Mike Rapoport wrote:
> > > +
> > > +static inline struct ptdesc *ptdesc_alloc(gfp_t gfp, unsigned int order)
> > > +{
> > > + struct page *pag
On Thu, May 25, 2023 at 10:00:23AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:56 AM Mike Rapoport wrote:
> >
> > Hi,
> >
> > On Mon, May 01, 2023 at 12:27:56PM -0700, Vishal Moola (Oracle) wrote:
> > > No folio equivalents for page type operation
On Thu, May 25, 2023 at 10:00:23AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:56 AM Mike Rapoport wrote:
> >
> > Hi,
> >
> > On Mon, May 01, 2023 at 12:27:56PM -0700, Vishal Moola (Oracle) wrote:
> > > No folio equivalents for page type operation
On Thu, May 25, 2023 at 10:00:23AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:56 AM Mike Rapoport wrote:
> >
> > Hi,
> >
> > On Mon, May 01, 2023 at 12:27:56PM -0700, Vishal Moola (Oracle) wrote:
> > > No folio equivalents for page type operation
On Mon, May 01, 2023 at 12:28:08PM -0700, Vishal Moola (Oracle) wrote:
> Creates ptdesc_pte_ctor(), ptdesc_pmd_ctor(), ptdesc_pte_dtor(), and
> ptdesc_pmd_dtor() and make the original pgtable constructor/destructors
> wrappers.
I think pgtable_pXY_ctor/dtor names would be better.
>
On Mon, May 01, 2023 at 12:28:08PM -0700, Vishal Moola (Oracle) wrote:
> Creates ptdesc_pte_ctor(), ptdesc_pmd_ctor(), ptdesc_pte_dtor(), and
> ptdesc_pmd_dtor() and make the original pgtable constructor/destructors
> wrappers.
I think pgtable_pXY_ctor/dtor names would be better.
>
On Mon, May 01, 2023 at 12:28:08PM -0700, Vishal Moola (Oracle) wrote:
> Creates ptdesc_pte_ctor(), ptdesc_pmd_ctor(), ptdesc_pte_dtor(), and
> ptdesc_pmd_dtor() and make the original pgtable constructor/destructors
> wrappers.
I think pgtable_pXY_ctor/dtor names would be better.
>
On Mon, May 01, 2023 at 12:28:00PM -0700, Vishal Moola (Oracle) wrote:
> Introduce utility functions setting the foundation for ptdescs. These
> will also assist in the splitting out of ptdesc from struct page.
>
> ptdesc_alloc() is defined to allocate new ptdesc pages as compound
> pages. This
On Mon, May 01, 2023 at 12:28:00PM -0700, Vishal Moola (Oracle) wrote:
> Introduce utility functions setting the foundation for ptdescs. These
> will also assist in the splitting out of ptdesc from struct page.
>
> ptdesc_alloc() is defined to allocate new ptdesc pages as compound
> pages. This
On Mon, May 01, 2023 at 12:28:00PM -0700, Vishal Moola (Oracle) wrote:
> Introduce utility functions setting the foundation for ptdescs. These
> will also assist in the splitting out of ptdesc from struct page.
>
> ptdesc_alloc() is defined to allocate new ptdesc pages as compound
> pages. This
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