The patch titled
Subject: mm-close-race-between-munmap-and-expand_upwards-downwards-fix
has been added to the -mm tree. Its filename is
mm-close-race-between-munmap-and-expand_upwards-downwards-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-close-race-between-munmap-and-expand_upwards-downwards-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-close-race-between-munmap-and-expand_upwards-downwards-fix.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-close-race-between-munmap-and-expand_upwards-downwards-fix
s/mmap_sem/mmap_lock/ in comment
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/mmap.c~mm-close-race-between-munmap-and-expand_upwards-downwards-fix
+++ a/mm/mmap.c
@@ -2647,9 +2647,9 @@ detach_vmas_to_be_unmapped(struct mm_str
vmacache_invalidate(mm);
/*
- * Do not downgrade mmap_sem if we are next to VM_GROWSDOWN or
+ * Do not downgrade mmap_lock if we are next to VM_GROWSDOWN or
* VM_GROWSUP VMA. Such VMAs can change their size under
- * down_read(mmap_sem) and collide with the VMA we are about to unmap.
+ * down_read(mmap_lock) and collide with the VMA we are about to unmap.
*/
if (vma && (vma->vm_flags & VM_GROWSDOWN))
return false;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm-close-race-between-munmap-and-expand_upwards-downwards-fix.patch
mm.patch
mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix.patch
mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-fix.patch
mm-vmstat-add-events-for-thp-migration-without-split-fix.patch
linux-next-rejects.patch
mm-madvise-introduce-process_madvise-syscall-an-external-memory-hinting-api-fix.patch
mm-madvise-introduce-process_madvise-syscall-an-external-memory-hinting-api-fix-2.patch
kernel-forkc-export-kernel_thread-to-modules.patch
