From: Haiyang Zhang <haiyangz@microsoft.com>
To: linux-hyperv@vger.kernel.org, akpm@linux-foundation.org,
corbet@lwn.net, linux-mm@kvack.org, linux-doc@vger.kernel.org
Cc: haiyangz@microsoft.com, decui@microsoft.com, kys@microsoft.com,
paulros@microsoft.com, olaf@aepfle.de, vkuznets@redhat.com,
davem@davemloft.net, wei.liu@kernel.org, longli@microsoft.com,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] mm: Explicitly check & doc fragsz limit
Date: Thu, 3 Apr 2025 14:21:47 -0700 [thread overview]
Message-ID: <1743715309-318-1-git-send-email-haiyangz@microsoft.com> (raw)
The page frag allocator is not designed for fragsz > PAGE_SIZE.
Explicitly check it in the function & document the fragsz limit.
Haiyang Zhang (2):
mm: page_frag: Check fragsz at the beginning of __page_frag_alloc_align()
docs/mm: Specify page frag size is not bigger than PAGE_SIZE
Documentation/mm/page_frags.rst | 2 +-
mm/page_frag_cache.c | 22 +++++++++-------------
2 files changed, 10 insertions(+), 14 deletions(-)
--
2.34.1
next reply other threads:[~2025-04-03 21:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-03 21:21 Haiyang Zhang [this message]
2025-04-03 21:21 ` [PATCH 1/2] mm: page_frag: Check fragsz at the beginning of __page_frag_alloc_align() Haiyang Zhang
2025-04-16 7:37 ` Yunsheng Lin
2025-04-16 14:11 ` [EXTERNAL] " Haiyang Zhang
2025-04-03 21:21 ` [PATCH 2/2] docs/mm: Specify page frag size is not bigger than PAGE_SIZE Haiyang Zhang
2025-04-15 21:40 ` [PATCH 0/2] mm: Explicitly check & doc fragsz limit Haiyang Zhang
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