linux-kernel - [PATCH RFC 0/2] mm/page_alloc: free_pcppages

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Message-Id: <20230817-free_pcppages_bulk-v1-0-c14574a9f80c@kernel.org>
Date:   Thu, 17 Aug 2023 23:05:22 -0700
From:   Chris Li <chrisl@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Kemeng Shi <shikemeng@...weicloud.com>
Cc:     akpm@...ux-foundation.org, baolin.wang@...ux.alibaba.com,
        mgorman@...hsingularity.net, Michal Hocko <mhocko@...e.com>,
        david@...hat.com, willy@...radead.org, linux-mm@...ck.org,
        Namhyung Kim <namhyung@...gle.com>,
        Greg Thelen <gthelen@...gle.com>, linux-kernel@...r.kernel.org,
        Chris Li <chrisl@...nel.org>,
        John Sperbeck <jsperbeck@...gle.com>
Subject: [PATCH RFC 0/2] mm/page_alloc: free_pcppages_bulk safeguard

In this patch series I want to safeguard
the free_pcppage_bulk against change in the
pcp->count outside of this function. e.g.
by BPF program inject on the function tracepoint.

I break up the patches into two seperate patches
for the safeguard and clean up.

Hopefully that is easier to review.

Signed-off-by: Chris Li <chrisl@...nel.org>
---
Chris Li (2):
      mm/page_alloc: safeguard free_pcppages_bulk
      mm/page_alloc: free_pcppages_bulk clean up

 mm/page_alloc.c | 44 +++++++++++++-------------------------------
 1 file changed, 13 insertions(+), 31 deletions(-)
---
base-commit: 5fb2ea3111f4ecc6dc4891ce5b00f0217aae9a04
change-id: 20230817-free_pcppages_bulk-facc18d6fee7

Best regards,
-- 
Chris Li <chrisl@...nel.org>