diff options
author | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-27 17:00:19 -0300 |
---|---|---|
committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-30 16:58:36 -0300 |
commit | 846babe85efdda49feba5b169668333dcf3edf25 (patch) | |
tree | 9b2f00d245028f5a064ab19f338466111415c84e /Makefile | |
parent | f66c9a33aee943aa43b3698c1f6f2619e28a1c77 (diff) |
mm/hmm: do not unconditionally set pfns when returning EBUSY
In hmm_vma_handle_pte() and hmm_vma_walk_hugetlb_entry() if fault happens
then -EBUSY will be returned and the pfns input flags will have been
destroyed.
For hmm_vma_handle_pte() set HMM_PFN_NONE only on the success returns that
don't otherwise store to pfns.
For hmm_vma_walk_hugetlb_entry() all exit paths already set pfns, so
remove the redundant store.
Fixes: 2aee09d8c116 ("mm/hmm: change hmm_vma_fault() to allow write fault on page basis")
Link: https://lore.kernel.org/r/20200327200021.29372-8-jgg@ziepe.ca
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions