mm/mmap: Fix error path in do_vmi_align_munmap()
The error unrolling was leaving the VMAs detached in many cases and leaving the locked_vm statistic altered, and skipping the unrolling entirely in the case of the vma tree write failing. Fix the error path by re-attaching the detached VMAs and adding the necessary goto for the failed vma tree write, and fix the locked_vm statistic by only updating after the vma tree write succeeds. Fixes: 763ecb03 ("mm: remove the vma linked list") Reported-by:Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by:
Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
parent
1b29d271