On Thu, Sep 14, 2023 at 08:26:11AM -0700, Suren Baghdasaryan wrote:
> From: Andrea Arcangeli
>
> As far as the rmap code is concerned, UFFDIO_REMAP only alters the
> page->mapping and page->index. It does it while holding the page
folio->mapping and folio->index. It does it while holding the fo
On Thu, Sep 14, 2023 at 08:26:12AM -0700, Suren Baghdasaryan wrote:
> +++ b/include/linux/userfaultfd_k.h
> @@ -93,6 +93,23 @@ extern int mwriteprotect_range(struct mm_struct *dst_mm,
> extern long uffd_wp_range(struct vm_area_struct *vma,
> unsigned long start, unsigned lo
On Mon, Oct 16, 2023 at 02:38:19PM +, jef...@chromium.org wrote:
> Modern CPUs support memory permissions such as RW and NX bits. Linux has
> supported NX since the release of kernel version 2.6.8 in August 2004 [1].
This seems like a confusing way to introduce the subject. Here, you're
talki
On Tue, Oct 17, 2023 at 01:34:35AM -0700, Jeff Xu wrote:
> > > types: bit mask to specify which syscall to seal, currently they are:
> > > MM_SEAL_MSEAL 0x1
> > > MM_SEAL_MPROTECT 0x2
> > > MM_SEAL_MUNMAP 0x4
> > > MM_SEAL_MMAP 0x8
> > > MM_SEAL_MREMAP 0x10
> >
> > I don't understand why we want th
On Tue, Oct 17, 2023 at 08:18:47PM -0700, Jeff Xu wrote:
> In practice: libc could do below:
> #define MM_IMMUTABLE
> (MM_SEAL_MPROTECT|MM_SEAL_MUNMAP|MM_SEAL_MREMAP|MM_SEAL_MMAP)
> mseal(add,len, MM_IMMUTABLE)
> it will be equivalent to BSD's immutable().
No, it wouldn't, because you've carefully
On Thu, Nov 30, 2023 at 11:40:18AM -0800, Nhat Pham wrote:
> This patch changes list_lru interface so that the caller must explicitly
> specify numa node and memcg when adding and removing objects. The old
> list_lru_add() and list_lru_del() are renamed to list_lru_add_obj() and
> list_lru_del_obj(
On Tue, Jan 09, 2024 at 03:45:40PM +, jef...@chromium.org wrote:
> +extern bool can_modify_mm(struct mm_struct *mm, unsigned long start,
> + unsigned long end);
> +extern bool can_modify_mm_madv(struct mm_struct *mm, unsigned long start,
> + unsigned long end, int behavi
On Mon, Jan 15, 2024 at 08:22:19PM +0100, Bernd Edlinger wrote:
> This introduces signal->exec_bprm, which is used to
> fix the case when at least one of the sibling threads
> is traced, and therefore the trace process may dead-lock
> in ptrace_attach, but de_thread will need to wait for the
> trac
On Tue, Mar 19, 2024 at 01:26:09PM -0400, Gregory Price wrote:
> Implement simple ktest that looks up the physical address via
> /proc/self/pagemap and migrates the page based on that information.
What? LOL. No.
On Tue, Mar 19, 2024 at 05:52:46PM +, Matthew Wilcox wrote:
> On Tue, Mar 19, 2024 at 01:26:09PM -0400, Gregory Price wrote:
> > Implement simple ktest that looks up the physical address via
> > /proc/self/pagemap and migrates the page based on that information.
>
> W
On Tue, Mar 19, 2024 at 02:14:33PM -0400, Gregory Price wrote:
> On Tue, Mar 19, 2024 at 05:52:46PM +0000, Matthew Wilcox wrote:
> > On Tue, Mar 19, 2024 at 01:26:09PM -0400, Gregory Price wrote:
> > > Implement simple ktest that looks up the physical address via
> >
On Tue, Mar 19, 2024 at 02:32:17PM -0400, Gregory Price wrote:
> On Tue, Mar 19, 2024 at 06:20:33PM +0000, Matthew Wilcox wrote:
> > On Tue, Mar 19, 2024 at 02:14:33PM -0400, Gregory Price wrote:
> > > On Tue, Mar 19, 2024 at 05:52:46PM +0000, Matthew Wilcox wrote:
> > >
On Tue, May 14, 2024 at 02:59:57PM -0600, Jonathan Corbet wrote:
> Andrew Morton writes:
>
> > On Mon, 15 Apr 2024 16:35:19 + jef...@chromium.org wrote:
> >
> >> This patchset proposes a new mseal() syscall for the Linux kernel.
> >
> > I have not moved this into mm-stable for a 6.10 merge.
On Thu, Jun 06, 2024 at 01:58:35PM +, Pankaj Raghav (Samsung) wrote:
> +++ b/tools/testing/selftests/mm/split_huge_page_test.c
> @@ -300,7 +300,7 @@ int create_pagecache_thp_and_fd(const char *testfile,
> size_t fd_size, int *fd,
> char **addr)
> {
> size_t i;
> - int
On Thu, Aug 29, 2024 at 12:54:09PM -0700, Jeff Xu wrote:
> Hi Lorenzo
>
> On Thu, Aug 29, 2024 at 8:44 AM Lorenzo Stoakes
> wrote:
>
> > > >
> > > > Also, this is a really unusual way to send a series - why is this a 2/2
> > > > in
> > > > reply to the 1/2 and no cover letter? Why is this chang
_ida)) > 0) {
> //anything to do with the allocated ID
> ida_free(pasid_ida, pasid);
> }
>
> Cc: Matthew Wilcox (Oracle)
> Suggested-by: Jason Gunthorpe
> Signed-off-by: Yi Liu
> ---
> include/linux/idr.h | 11
> lib/i
On Fri, Sep 13, 2024 at 07:45:55PM +0800, Yi Liu wrote:
> > No test cases for the test suite? ;-(
>
> let me add something like the below. :)
That looks pretty comprehensive, thanks!
Acked-by: Matthew Wilcox (Oracle)
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