linux-kernel - [PATCH v2 0/5] bootconfig: Fixes to bootconfig memory management

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Date:   Wed, 15 Sep 2021 09:52:57 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Linux-MM <linux-mm@...ck.org>, Vlastimil Babka <vbabka@...e.cz>
Subject: [PATCH v2 0/5] bootconfig: Fixes to bootconfig memory management

Hello,

Here are the series of patches to fix bootconfig memory management issues.
>From v1, I added some more fixes and split a memory leak fix from freeing
unused memory patch.

[1/5] fixing kernel BUG issue on boot. Just rebased on the linus tree.
[2/5] Add new memblock leak fix in xbc_make_cmdline().
[3/5] Split from [4/5], fixing a memblock leak in setup_boot_config().
[4/5] Free unused memblock after boot. Use new memblock_free_ptr().
[5/5] Fix a tool build error caused by memblock_free_ptr().

And now I'm considering to move ownership of copied bootconfig data
to lib/bootconfig. That will make code simpler. But I also think fixing
bugs are urgent. So I send this series first.

Thank you,

---

Masami Hiramatsu (5):
      bootconfig: Fix to check the xbc_node is used before free it
      bootconfig: init: Fix memblock leak in xbc_make_cmdline()
      bootconfig: init: Fix memblock leak in setup_boot_config()
      bootconfig: Free copied bootconfig data after boot
      tools/bootconfig: Define memblock_free_ptr() to fix build error


 init/main.c                               |    9 +++++++++
 lib/bootconfig.c                          |    3 ++-
 tools/bootconfig/include/linux/memblock.h |    3 +--
 3 files changed, 12 insertions(+), 3 deletions(-)

-- 
Masami Hiramatsu (Linaro) <mhiramat@...nel.org>