linux-kernel - [PATCH v2 RESEND] kexec_lock: Replace kexec_mutex() by kexec

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Date:   Mon, 7 Aug 2023 10:52:06 +0800
From:   Wenyu Liu <liuwenyu7@...wei.com>
To:     <ebiederm@...ssion.com>, <zohar@...ux.ibm.com>,
        <dmitry.kasatkin@...il.com>, <paul@...l-moore.com>,
        <jmorris@...ei.org>, <serge@...lyn.com>,
        <kexec@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-security-module@...r.kernel.org>,
        <linux-integrity@...r.kernel.org>
CC:     <akpm@...ux-foundation.org>, <vschneid@...hat.com>,
        <pmenzel@...gen.mpg.de>, <bhe@...hat.com>,
        <louhongxiang@...wei.com>
Subject: [PATCH v2 RESEND] kexec_lock: Replace kexec_mutex() by kexec_lock() in two comments

kexec_mutex is replaced by an atomic variable
in 05c6257433b (panic, kexec: make __crash_kexec() NMI safe).

But there are still two comments that referenced kexec_mutex,
replace them by kexec_lock.

Signed-off-by: Wenyu Liu <liuwenyu7@...wei.com>
Acked-by: Baoquan He <bhe@...hat.com>
Acked-by: Paul Menzel <pmenzel@...gen.mpg.de>
---
v1 -> v2
 - fixed some mistakes in the submission information

 kernel/kexec_file.c                | 2 +-
 security/integrity/ima/ima_kexec.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 881ba0d1714c..b5bbb2fe0668 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -624,7 +624,7 @@ int kexec_locate_mem_hole(struct kexec_buf *kbuf)
  * kexec_add_buffer - place a buffer in a kexec segment
  * @kbuf:	Buffer contents and memory parameters.
  *
- * This function assumes that kexec_mutex is held.
+ * This function assumes that kexec_lock is held.
  * On successful return, @kbuf->mem will have the physical address of
  * the buffer in memory.
  *
diff --git a/security/integrity/ima/ima_kexec.c b/security/integrity/ima/ima_kexec.c
index 419dc405c831..ad133fe120db 100644
--- a/security/integrity/ima/ima_kexec.c
+++ b/security/integrity/ima/ima_kexec.c
@@ -77,7 +77,7 @@ static int ima_dump_measurement_list(unsigned long *buffer_size, void **buffer,
  * Called during kexec_file_load so that IMA can add a segment to the kexec
  * image for the measurement list for the next kernel.
  *
- * This function assumes that kexec_mutex is held.
+ * This function assumes that kexec_lock is held.
  */
 void ima_add_kexec_buffer(struct kimage *image)
 {
-- 
2.33.0