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| author | John Hubbard <[email protected]> | 2020-05-17 01:23:36 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2020-05-17 19:37:45 +0000 |
| commit | dbfe7d74376e187f3c6eaff822e85176bc2cd06e (patch) | |
| tree | 81d990e7cc2bf3e04dc61b5c8e96c208a7a65225 /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | Merge branch 'mptcp-do-not-block-on-subflow-socket' (diff) | |
| download | kernel-dbfe7d74376e187f3c6eaff822e85176bc2cd06e.tar.gz kernel-dbfe7d74376e187f3c6eaff822e85176bc2cd06e.zip | |
rds: convert get_user_pages() --> pin_user_pages()
This code was using get_user_pages_fast(), in a "Case 2" scenario
(DMA/RDMA), using the categorization from [1]. That means that it's
time to convert the get_user_pages_fast() + put_page() calls to
pin_user_pages_fast() + unpin_user_pages() calls.
There is some helpful background in [2]: basically, this is a small
part of fixing a long-standing disconnect between pinning pages, and
file systems' use of those pages.
[1] Documentation/core-api/pin_user_pages.rst
[2] "Explicit pinning of user-space pages":
https://lwn.net/Articles/807108/
Cc: David S. Miller <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: John Hubbard <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
0 files changed, 0 insertions, 0 deletions