The patch titled
Subject: mm/hugetlb: fix potential missing huge page size info
has been added to the -mm tree. Its filename is
mm-hugetlb-fix-potential-missing-huge-page-size-info.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-fix-potential-missing-…
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-fix-potential-missing-…
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
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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: Miaohe Lin <linmiaohe(a)huawei.com>
Subject: mm/hugetlb: fix potential missing huge page size info
The huge page size is encoded for VM_FAULT_HWPOISON errors only. So if we
return VM_FAULT_HWPOISON, huge page size would just be ignored.
Link: https://lkml.kernel.org/r/20210107123449.38481-1-linmiaohe@huawei.com
Fixes: aa50d3a7aa81 ("Encode huge page size for VM_FAULT_HWPOISON errors")
Signed-off-by: Miaohe Lin <linmiaohe(a)huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz(a)oracle.com>
Cc: <stable(a)vger.kernel.org>
Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/hugetlb.c~mm-hugetlb-fix-potential-missing-huge-page-size-info
+++ a/mm/hugetlb.c
@@ -4371,7 +4371,7 @@ retry:
* So we need to block hugepage fault by PG_hwpoison bit check.
*/
if (unlikely(PageHWPoison(page))) {
- ret = VM_FAULT_HWPOISON |
+ ret = VM_FAULT_HWPOISON_LARGE |
VM_FAULT_SET_HINDEX(hstate_index(h));
goto backout_unlocked;
}
_
Patches currently in -mm which might be from linmiaohe(a)huawei.com are
mm-vmallocc-fix-potential-memory-leak.patch
mm-hugetlb-fix-potential-missing-huge-page-size-info.patch
The patch titled
Subject: mm/vmalloc.c: fix potential memory leak
has been added to the -mm tree. Its filename is
mm-vmallocc-fix-potential-memory-leak.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-vmallocc-fix-potential-memory-…
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-vmallocc-fix-potential-memory-…
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 and is updated
there every 3-4 working days
------------------------------------------------------
From: Miaohe Lin <linmiaohe(a)huawei.com>
Subject: mm/vmalloc.c: fix potential memory leak
In VM_MAP_PUT_PAGES case, we should put pages and free array in vfree.
But we missed to set area->nr_pages in vmap(). So we would failed to put
pages in __vunmap() because area->nr_pages = 0.
Link: https://lkml.kernel.org/r/20210107123541.39206-1-linmiaohe@huawei.com
Fixes: b944afc9d64d ("mm: add a VM_MAP_PUT_PAGES flag for vmap")
Signed-off-by: Shijie Luo <luoshijie1(a)huawei.com>
Signed-off-by: Miaohe Lin <linmiaohe(a)huawei.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki(a)gmail.com>
Cc: <stable(a)vger.kernel.org>
Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org>
---
mm/vmalloc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/mm/vmalloc.c~mm-vmallocc-fix-potential-memory-leak
+++ a/mm/vmalloc.c
@@ -2420,8 +2420,10 @@ void *vmap(struct page **pages, unsigned
return NULL;
}
- if (flags & VM_MAP_PUT_PAGES)
+ if (flags & VM_MAP_PUT_PAGES) {
area->pages = pages;
+ area->nr_pages = count;
+ }
return area->addr;
}
EXPORT_SYMBOL(vmap);
_
Patches currently in -mm which might be from linmiaohe(a)huawei.com are
mm-vmallocc-fix-potential-memory-leak.patch