linux-kernel - [PATCH 0/2] vmalloc: Introduce vmap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250131001806.92349-1-vishal.moola@gmail.com>
Date: Thu, 30 Jan 2025 16:18:04 -0800
From: "Vishal Moola (Oracle)" <vishal.moola@...il.com>
To: akpm@...ux-foundation.org
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	hch@...radead.org,
	urezki@...il.com,
	intel-gfx@...ts.freedesktop.org,
	"Vishal Moola (Oracle)" <vishal.moola@...il.com>
Subject: [PATCH 0/2] vmalloc: Introduce vmap_file()

Currently, users have to call vmap() or vmap_pfn() to map pages to
kernel virtual space. vmap() requires the page references, and
vmap_pfn() requires page pfns. If we have a file but no page references,
we have to do extra work to map them.

Create a function, vmap_file(), to map a specified range of a given
file to kernel virtual space. Also convert a user that benefits from
vmap_file().

Vishal Moola (Oracle) (2):
  mm/vmalloc: Introduce vmap_file()
  drm: Use vmap_file() in shmem_pin_map()

 drivers/gpu/drm/i915/gt/shmem_utils.c | 23 +------
 include/linux/vmalloc.h               |  2 +
 mm/vmalloc.c                          | 97 +++++++++++++++++++++++++++
 3 files changed, 102 insertions(+), 20 deletions(-)

-- 
2.47.1