The patch titled
Subject: uprobes: remove unneeded condition
has been added to the -mm mm-unstable branch. Its filename is
uprobes-use-vm_special_mapping-close-functionality-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/uprobes-use-vm_special_mapping-close-functionality-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Subject: uprobes: remove unneeded condition
Date: Fri, 6 Sep 2024 15:18:25 +0500
The area cannot be NULL as we are getting it through container_of().
Hence there is no need to check its validity. Remove the if condition and
return statement.
Link: https://lkml.kernel.org/r/20240906101825.177490-1-usama.anjum@xxxxxxxxxxxxx
Fixes: ("uprobes: use vm_special_mapping close() functionality")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/events/uprobes.c | 3 ---
1 file changed, 3 deletions(-)
--- a/kernel/events/uprobes.c~uprobes-use-vm_special_mapping-close-functionality-fix
+++ a/kernel/events/uprobes.c
@@ -1493,9 +1493,6 @@ static void uprobe_clear_state(const str
delayed_uprobe_remove(NULL, vma->vm_mm);
mutex_unlock(&delayed_uprobe_lock);
- if (!area)
- return;
-
put_page(area->pages[0]);
kfree(area->bitmap);
kfree(area);
_
Patches currently in -mm which might be from usama.anjum@xxxxxxxxxxxxx are
uprobes-use-vm_special_mapping-close-functionality-fix.patch
