| commit | e709accc7670a07b2e5186449f0640c2416662ec | [log] [tgz] |
|---|---|---|
| author | Jason Gunthorpe <jgg@mellanox.com> | Wed Jul 24 08:52:58 2019 +0200 |
| committer | Jason Gunthorpe <jgg@mellanox.com> | Thu Jul 25 16:14:40 2019 -0300 |
| tree | e110126f0ec2ba46b4712d2556b19545400e4f67 | |
| parent | f32471e2cf87112b8f5dc10469b27c39c1a41722 [diff] |
mm/hmm: comment on VM_FAULT_RETRY semantics in handle_mm_fault The magic dropping of mmap_sem when handle_mm_fault returns VM_FAULT_RETRY is rather subtile. Add a comment explaining it. Link: https://lore.kernel.org/r/20190724065258.16603-8-hch@lst.de Tested-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> [hch: wrote a changelog] Signed-off-by: Christoph Hellwig <hch@lst.de>