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| author | Anthony Yznaga <anthony.yznaga@oracle.com> | 2023-08-30 02:43:24 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-04 19:32:19 +0200 |
| commit | dd34d9fe3b427dea47f81443d022dbaec4339f7e (patch) | |
| tree | 12c8578950ac34c1036c64360ad09d2efd12aabc /mm/mmap.c | |
| parent | mm/mremap: fix unaccount of memory on vma_merge() failure (diff) | |
| download | linux-dd34d9fe3b427dea47f81443d022dbaec4339f7e.tar.xz linux-dd34d9fe3b427dea47f81443d022dbaec4339f7e.zip | |
mm: fix unaccount of memory on vma_link() failure
Fix insert_vm_struct() so that only accounted memory is unaccounted if
vma_link() fails.
Link: https://lkml.kernel.org/r/20230830004324.16101-1-anthony.yznaga@oracle.com
Fixes: d4af56c5c7c6 ("mm: start tracking VMAs with maple tree")
Signed-off-by: Anthony Yznaga <anthony.yznaga@oracle.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index b56a7f0c9f85..1ec6c875a7f9 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -3278,7 +3278,8 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma) } if (vma_link(mm, vma)) { - vm_unacct_memory(charged); + if (vma->vm_flags & VM_ACCOUNT) + vm_unacct_memory(charged); return -ENOMEM; } |