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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-19 13:37:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-19 13:37:57 -0700 |
| commit | deb521c44fa529b24cc78a64702757a683f82487 (patch) | |
| tree | 36423a9de6427ada2eb3393f1d67036902c947a1 /include/linux | |
| parent | 17dbe27d8446232fdc7c69e9818cce5bbc6b3e31 (diff) | |
| download | linux-deb521c44fa529b24cc78a64702757a683f82487.tar.gz linux-deb521c44fa529b24cc78a64702757a683f82487.tar.xz | |
remap_file_pages: correctly handle the case of a NULL vm_ops pointer
In commit 0b173bc4daa8 ("mm: kill vma flag VM_CAN_NONLINEAR") we
replaced the VM_CAN_NONLINEAR test with checking whether the mapping has
a '->remap_pages()' vm operation, but there is no guarantee that there
it even has a vm_ops pointer at all.
Add the appropriate test for NULL vm_ops.
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions