linux-kernel - [PATCH 0/2] Support direct I/O read and write for memory allocated by dmabuf

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Message-Id: <20240710140948.25870-1-liulei.rjpt@vivo.com>
Date: Wed, 10 Jul 2024 22:09:42 +0800
From: Lei Liu <liulei.rjpt@...o.com>
To: Sumit Semwal <sumit.semwal@...aro.org>,
	Benjamin Gaignard <benjamin.gaignard@...labora.com>,
	Brian Starkey <Brian.Starkey@....com>,
	John Stultz <jstultz@...gle.com>,
	"T.J. Mercier" <tjmercier@...gle.com>,
	Christian König <christian.koenig@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Hildenbrand <david@...hat.com>,
	Matthew Wilcox <willy@...radead.org>,
	Muhammad Usama Anjum <usama.anjum@...labora.com>,
	Andrei Vagin <avagin@...gle.com>,
	Ryan Roberts <ryan.roberts@....com>,
	Peter Xu <peterx@...hat.com>,
	Kefeng Wang <wangkefeng.wang@...wei.com>,
	linux-media@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linaro-mm-sig@...ts.linaro.org,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org
Cc: opensource.kernel@...o.com,
	Lei Liu <liulei.rjpt@...o.com>
Subject: [PATCH 0/2] Support direct I/O read and write for memory allocated by dmabuf

Use vm_insert_page to establish a mapping for the memory allocated
by dmabuf, thus supporting direct I/O read and write; and fix the
issue of incorrect memory statistics after mapping dmabuf memory.

Lei Liu (2):
  mm: dmabuf_direct_io: Support direct_io for memory allocated by dmabuf
  mm: dmabuf_direct_io: Fix memory statistics error for dmabuf allocated
    memory with direct_io support

 drivers/dma-buf/heaps/system_heap.c |  5 +++--
 fs/proc/task_mmu.c                  |  8 +++++++-
 include/linux/mm.h                  |  1 +
 mm/memory.c                         | 15 ++++++++++-----
 mm/rmap.c                           |  9 +++++----
 5 files changed, 26 insertions(+), 12 deletions(-)

-- 
2.34.1