mbox series

[0/2] io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area()

Message ID 20230721152432.196382-1-deller@gmx.de
Headers
Series io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area() |

Message

Helge Deller July 21, 2023, 3:24 p.m. UTC 
  Fix io_uring on IA64 (and x86-32?) which was broken since commit
d808459b2e31 ("io_uring: Adjust mapping wrt architecture aliasing
requirements").
The fix is to switch back to the get_unmapped_area() which is provided by
each architecture.

Patch 1 switches io_uring back to use per-arch get_unmapped_area().
Patch 2 (for IA64) is an independend cleanup.

Helge

Helge Deller (2):
  io_uring: Fix io_uring mmap() by using architecture-provided
    get_unmapped_area()
  ia64: mmap: Consider pgoff when searching for free mapping

 arch/ia64/kernel/sys_ia64.c     |  2 +-
 arch/parisc/kernel/sys_parisc.c | 15 ++++++++----
 io_uring/io_uring.c             | 42 +++++++++++++--------------------
 3 files changed, 28 insertions(+), 31 deletions(-)

--
2.41.0

Comments

Jens Axboe July 21, 2023, 3:42 p.m. UTC | #1 
On 7/21/23 9:24?AM, Helge Deller wrote:
> Fix io_uring on IA64 (and x86-32?) which was broken since commit
> d808459b2e31 ("io_uring: Adjust mapping wrt architecture aliasing
> requirements").
> The fix is to switch back to the get_unmapped_area() which is provided by
> each architecture.
> 
> Patch 1 switches io_uring back to use per-arch get_unmapped_area().
> Patch 2 (for IA64) is an independend cleanup.

Let's get this queued up - I marked it for stable as well, for 6.4.
Thanks for taking care of this!