linux-kernel - [PATCH v3 0/3] Convert vmcore to use an iov

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Date:   Mon, 13 Dec 2021 14:39:24 +0000
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     Baoquan He <bhe@...hat.com>, Vivek Goyal <vgoyal@...hat.com>,
        Dave Young <dyoung@...hat.com>, kexec@...ts.infradead.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        linux-kernel@...r.kernel.org,
        Amit Daniel Kachhap <amit.kachhap@....com>,
        Christoph Hellwig <hch@....de>, linux-fsdevel@...r.kernel.org
Subject: [PATCH v3 0/3] Convert vmcore to use an iov_iter

For some reason several people have been sending bad patches to fix
compiler warnings in vmcore recently.  Here's how it should be done.
Compile-tested only on x86.  As noted in the first patch, s390 should
take this conversion a bit further, but I'm not inclined to do that
work myself.

v3:
 - Send the correct patches this time
v2:
 - Removed unnecessary kernel-doc
 - Included uio.h to fix compilation problems
 - Made read_from_oldmem_iter static to avoid compile warnings during the
   conversion
 - Use iov_iter_truncate() (Christoph)

Matthew Wilcox (Oracle) (3):
  vmcore: Convert copy_oldmem_page() to take an iov_iter
  vmcore: Convert __read_vmcore to use an iov_iter
  vmcore: Convert read_from_oldmem() to take an iov_iter

 arch/arm/kernel/crash_dump.c     |  27 +------
 arch/arm64/kernel/crash_dump.c   |  29 +------
 arch/ia64/kernel/crash_dump.c    |  32 +-------
 arch/mips/kernel/crash_dump.c    |  27 +------
 arch/powerpc/kernel/crash_dump.c |  35 ++-------
 arch/riscv/kernel/crash_dump.c   |  26 +------
 arch/s390/kernel/crash_dump.c    |  13 ++--
 arch/sh/kernel/crash_dump.c      |  29 ++-----
 arch/x86/kernel/crash_dump_32.c  |  29 +------
 arch/x86/kernel/crash_dump_64.c  |  48 ++++--------
 fs/proc/vmcore.c                 | 129 +++++++++++++------------------
 include/linux/crash_dump.h       |  19 ++---
 12 files changed, 122 insertions(+), 321 deletions(-)

-- 
2.33.0