The patch titled
Subject: mm/mmap: fix error return code in do_mas_align_munmap()
has been added to the -mm mm-unstable branch. Its filename is
mm-remove-the-vma-linked-list-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-the-vma-linked-list-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Subject: mm/mmap: fix error return code in do_mas_align_munmap()
Date: Thu, 23 Jun 2022 21:42:37 +0800
Return error code when munmap_sidetree() fails in do_mas_align_munmap().
Link: https://lkml.kernel.org/r/20220623134237.2127440-1-yangyingliang@xxxxxxxxxx
Fixes: 81f5504dfb36 ("mm/mmap: change do_mas_align_munmap() to avoid preallocations for sidetree")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mmap.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/mm/mmap.c~mm-remove-the-vma-linked-list-fix
+++ a/mm/mmap.c
@@ -2469,7 +2469,8 @@ do_mas_align_munmap(struct ma_state *mas
mas_set(mas, end);
split = mas_prev(mas, 0);
- if (munmap_sidetree(split, &mas_detach))
+ error = munmap_sidetree(split, &mas_detach);
+ if (error)
goto munmap_sidetree_failed;
count++;
@@ -2477,7 +2478,8 @@ do_mas_align_munmap(struct ma_state *mas
vma = split;
break;
}
- if (munmap_sidetree(next, &mas_detach))
+ error = munmap_sidetree(next, &mas_detach);
+ if (error)
goto munmap_sidetree_failed;
count++;
_
Patches currently in -mm which might be from yangyingliang@xxxxxxxxxx are
mm-remove-the-vma-linked-list-fix.patch
