The patch titled
Subject: mm-brk-downgrade-mmap_sem-to-read-when-shrinking-fix
has been removed from the -mm tree. Its filename was
mm-brk-downgrade-mmap_sem-to-read-when-shrinking-fix.patch
This patch was dropped because it was folded into mm-brk-downgrade-mmap_sem-to-read-when-shrinking.patch
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-brk-downgrade-mmap_sem-to-read-when-shrinking-fix
tweak comment
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Laurent Dufour <ldufour@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/mmap.c~mm-brk-downgrade-mmap_sem-to-read-when-shrinking-fix
+++ a/mm/mmap.c
@@ -243,9 +243,9 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
*/
if (brk <= mm->brk) {
/*
- * mm->brk need to be protected by write mmap_sem, update it
- * before downgrading mmap_sem.
- * When __do_munmap fail, it will be restored from origbrk.
+ * mm->brk must to be protected by write mmap_sem so update it
+ * before downgrading mmap_sem. When __do_munmap() fails,
+ * mm->brk will be restored from origbrk.
*/
mm->brk = brk;
retval = __do_munmap(mm, newbrk, oldbrk-newbrk, &uf, true);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm-brk-downgrade-mmap_sem-to-read-when-shrinking.patch
memory_hotplug-free-pages-as-higher-order-fix.patch
mm-calculate-deferred-pages-after-skipping-mirrored-memory-fix.patch
mm-gup_benchmark-time-put_page-fix.patch
tools-gup_benchmark-allow-user-specified-file-fix.patch
mm-thp-fix-madv_dontneed-vs-migrate_misplaced_transhuge_page-race-condition-fix.patch
