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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-03-24 21:46:33 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-04-18 20:38:22 +0200 |
| commit | f60d231a87c5c9f23f10e69996f396d46f5bf901 (patch) | |
| tree | 04076adf019c43dbf7f31ad435aed8361a9a46b0 /mm/mmu_notifier.c | |
| parent | srcu: Merge ->srcu_state into ->srcu_gp_seq (diff) | |
| download | linux-f60d231a87c5c9f23f10e69996f396d46f5bf901.tar.xz linux-f60d231a87c5c9f23f10e69996f396d46f5bf901.zip | |
srcu: Crude control of expedited grace periods
SRCU's implementation of expedited grace periods has always assumed
that the SRCU instance is idle when the expedited request arrives.
This commit improves this a bit by maintaining a count of the number
of outstanding expedited requests, thus allowing prior non-expedited
grace periods accommodate these requests by shifting to expedited mode.
However, any non-expedited wait already in progress will still wait for
the full duration.
Improved control of expedited grace periods is planned, but one step
at a time.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'mm/mmu_notifier.c')
0 files changed, 0 insertions, 0 deletions