On Fri, 20 Oct 2023 at 06:52, Borah, Chaitanya Kumar
wrote:
>
> Hello Lorenzo,
>
> Hope you are doing well. I am Chaitanya from the linux graphics team in Intel.
>
> This mail is regarding a regression we are seeing in our CI runs[1] on
> linux-next repository.
>
Thanks for reporting :) It is
On Fri, May 05, 2023 at 10:47:58AM +0800, kernel test robot wrote:
> tree/branch:
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> branch HEAD: 145e5cddfe8b4bf607510b2dcf630d95f4db420f Add linux-next
> specific files for 20230504
>
> Error/Warning reports:
>
>
On Wed, Oct 19, 2016 at 10:52:05AM +0200, Michal Hocko wrote:
> yes this is the desirable and expected behavior.
>
> > wonder if this is desirable behaviour or whether this ought to be limited to
> > ptrace system calls. Regardless, by making the flag more visible it makes it
> > easier to see
On Tue, Oct 18, 2016 at 05:30:50PM +0200, Michal Hocko wrote:
> I am wondering whether we can go further. E.g. it is not really clear to
> me whether we need an explicit FOLL_REMOTE when we can in fact check
> mm != current->mm and imply that. Maybe there are some contexts which
> wouldn't work, I
On Wed, Oct 19, 2016 at 10:13:52AM +0200, Michal Hocko wrote:
> On Wed 19-10-16 09:59:03, Jan Kara wrote:
> > On Thu 13-10-16 01:20:18, Lorenzo Stoakes wrote:
> > > This patch removes the write parameter from __access_remote_vm() and
> > > replaces it
> > &g
On Tue, Oct 18, 2016 at 02:54:25PM +0200, Jan Kara wrote:
> > @@ -1282,7 +1282,7 @@ long get_user_pages(unsigned long start, unsigned
> > long nr_pages,
> > int write, int force, struct page **pages,
> > struct vm_area_struct **vmas);
> > long
This patch removes the write and force parameters from get_user_pages_locked()
and replaces them with a gup_flags parameter to make the use of FOLL_FORCE
explicit in callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo
behaviour
(and hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
---
arch/alpha/kernel/ptrace.c | 9 ++---
arch/blackfin/kernel/ptrace.c | 5 +++--
arch/cris/arch-v32/kernel/ptrace.c | 4 ++--
arch/ia64/kernel/ptrace.c
where this assumption did not hold.
See https://marc.info/?l=linux-mm=147585445805166 for the patch proposal.
Lorenzo Stoakes (10):
mm: remove write/force parameters from __get_user_pages_locked()
mm: remove write/force parameters from __get_user_pages_unlocked()
mm: replace
This patch removes the write and force parameters from get_user_pages() and
replaces them with a gup_flags parameter to make the use of FOLL_FORCE explicit
in callers as use of this flag can result in surprising behaviour (and hence
bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes
This patch removes the write and force parameters from __get_user_pages_locked()
to make the use of FOLL_FORCE explicit in callers as use of this flag can result
in surprising behaviour (and hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
---
mm
This patch removes the write and force parameters from get_vaddr_frames() and
replaces them with a gup_flags parameter to make the use of FOLL_FORCE explicit
in callers as use of this flag can result in surprising behaviour (and hence
bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes
behaviour
(and hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
---
fs/proc/base.c | 19 +--
include/linux/mm.h | 2 +-
mm/memory.c| 11 +++
mm/nommu.c | 7 +++
4 files changed, 20 insertions(+), 19 del
This patch removes the write and force parameters from
__get_user_pages_unlocked() to make the use of FOLL_FORCE explicit in callers as
use of this flag can result in surprising behaviour (and hence bugs) within the
mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
---
i
This patch removes the write and force parameters from get_user_pages_unlocked()
and replaces them with a gup_flags parameter to make the use of FOLL_FORCE
explicit in callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo
This patch removes the write and force parameters from get_user_pages_remote()
and replaces them with a gup_flags parameter to make the use of FOLL_FORCE
explicit in callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo
behaviour
(and hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
---
mm/memory.c | 23 +++
mm/nommu.c | 9 ++---
2 files changed, 21 insertions(+), 11 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index 20a9adb..79ebed3
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