linux-kernel - [PATCH 0/2] io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped

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Message-ID: <20230721152432.196382-1-deller@gmx.de>
Date:   Fri, 21 Jul 2023 17:24:30 +0200
From:   Helge Deller <deller@....de>
To:     linux-kernel@...r.kernel.org, io-uring@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>, linux-ia64@...r.kernel.org,
        Jiri Slaby <jirislaby@...nel.org>, linux-parisc@...r.kernel.org
Cc:     Helge Deller <deller@....de>
Subject: [PATCH 0/2] io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area()

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