The patch titled
Subject: arc: use generic dump_stack_print_cmdline() implementation
has been added to the -mm mm-nonmm-unstable branch. Its filename is
arc-use-generic-dump_stack_print_cmdline-implementation.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arc-use-generic-dump_stack_print_cmdline-implementation.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Helge Deller <deller@xxxxxx>
Subject: arc: use generic dump_stack_print_cmdline() implementation
Date: Mon, 8 Aug 2022 15:09:17 +0200
The process program name and command line is now shown in generic code
in dump_stack_print_info(), so drop the arc-specific implementation.
Link: https://lkml.kernel.org/r/20220808130917.30760-5-deller@xxxxxx
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arc/kernel/troubleshoot.c | 24 ------------------------
1 file changed, 24 deletions(-)
--- a/arch/arc/kernel/troubleshoot.c~arc-use-generic-dump_stack_print_cmdline-implementation
+++ a/arch/arc/kernel/troubleshoot.c
@@ -51,29 +51,6 @@ static void print_regs_callee(struct cal
regs->r24, regs->r25);
}
-static void print_task_path_n_nm(struct task_struct *tsk)
-{
- char *path_nm = NULL;
- struct mm_struct *mm;
- struct file *exe_file;
- char buf[ARC_PATH_MAX];
-
- mm = get_task_mm(tsk);
- if (!mm)
- goto done;
-
- exe_file = get_mm_exe_file(mm);
- mmput(mm);
-
- if (exe_file) {
- path_nm = file_path(exe_file, buf, ARC_PATH_MAX-1);
- fput(exe_file);
- }
-
-done:
- pr_info("Path: %s\n", !IS_ERR(path_nm) ? path_nm : "?");
-}
-
static void show_faulting_vma(unsigned long address)
{
struct vm_area_struct *vma;
@@ -176,7 +153,6 @@ void show_regs(struct pt_regs *regs)
*/
preempt_enable();
- print_task_path_n_nm(tsk);
show_regs_print_info(KERN_INFO);
show_ecr_verbose(regs);
_
Patches currently in -mm which might be from deller@xxxxxx are
proc-add-get_task_cmdline_kernel-function.patch
lib-dump_stack-add-dump_stack_print_cmdline-and-wire-up-in-dump_stack_print_info.patch
x86-fault-dump-command-line-of-faulting-process-to-syslog.patch
arc-use-generic-dump_stack_print_cmdline-implementation.patch
