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| author | Jason Gunthorpe <jgg@mellanox.com> | 2019-07-24 08:52:58 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-07-25 16:14:40 -0300 |
| commit | e709accc7670a07b2e5186449f0640c2416662ec (patch) | |
| tree | e110126f0ec2ba46b4712d2556b19545400e4f67 /tools/perf/scripts/python/export-to-postgresql.py | |
| 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>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions