linux-kernel - [PATCH v2 01/10] mm/mmap: Move exit

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Message-ID: <20260115182720.1691130-2-Liam.Howlett@oracle.com>
Date: Thu, 15 Jan 2026 13:27:11 -0500
From: "Liam R. Howlett" <Liam.Howlett@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Suren Baghdasaryan <surenb@...gle.com>,
        Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
        Pedro Falcato <pfalcato@...e.de>, David Hildenbrand <david@...hat.com>,
        Vlastimil Babka <vbabka@...e.cz>, Michal Hocko <mhocko@...e.com>,
        Jann Horn <jannh@...gle.com>, shikemeng@...weicloud.com,
        kasong@...cent.com, nphamcs@...il.com, bhe@...hat.com,
        baohua@...nel.org, chrisl@...nel.org,
        Matthew Wilcox <willy@...radead.org>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>
Subject: [PATCH v2 01/10] mm/mmap: Move exit_mmap() trace point

Move the trace point later in the function so that it is not skipped in
the event of a failed fork.

Acked-by: Chris Li <chrisl@...nel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Reviewed-by: David Hildenbrand <david@...hat.com>
Reviewed-by: Pedro Falcato <pfalcato@...e.de>
Reviewed-by: Suren Baghdasaryan <surenb@...gle.com>
Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 mm/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index 4bdb9ffa9e257..1f025edf8d7d0 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1307,9 +1307,9 @@ void exit_mmap(struct mm_struct *mm)
 
 	BUG_ON(count != mm->map_count);
 
-	trace_exit_mmap(mm);
 destroy:
 	__mt_destroy(&mm->mm_mt);
+	trace_exit_mmap(mm);
 	mmap_write_unlock(mm);
 	vm_unacct_memory(nr_accounted);
 }
-- 
2.47.3