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| author | Ralph Campbell <rcampbell@nvidia.com> | 2018-04-10 16:28:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-11 10:28:30 -0700 |
| commit | e1401513c6b5efec59678a4d4e9f90957684b7e3 (patch) | |
| tree | 3c3d5bd62643829a0f37155780161acbe5c290ed /mm/truncate.c | |
| parent | b28b08de436a638c82d0cf3dcdbdbad055baf1fc (diff) | |
| download | blackbird-obmc-linux-e1401513c6b5efec59678a4d4e9f90957684b7e3.tar.gz blackbird-obmc-linux-e1401513c6b5efec59678a4d4e9f90957684b7e3.zip | |
mm/hmm: HMM should have a callback before MM is destroyed
hmm_mirror_register() registers a callback for when the CPU pagetable is
modified. Normally, the device driver will call hmm_mirror_unregister()
when the process using the device is finished. However, if the process
exits uncleanly, the struct_mm can be destroyed with no warning to the
device driver.
Link: http://lkml.kernel.org/r/20180323005527.758-4-jglisse@redhat.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Evgeny Baskakov <ebaskakov@nvidia.com>
Cc: Mark Hairgrove <mhairgrove@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/truncate.c')
0 files changed, 0 insertions, 0 deletions
