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| author | NeilBrown <neilb@suse.de> | 2022-03-07 02:41:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-13 21:59:12 +0300 |
| commit | a553864050944656c6225056d3704500fbbf6f38 (patch) | |
| tree | 1d8847b6205be8dd0326d16166855a5c5c7d72a1 /include | |
| parent | 20700aa01bc27428e4c9ffe2a635251444dcdd17 (diff) | |
| download | linux-a553864050944656c6225056d3704500fbbf6f38.tar.xz | |
SUNRPC: remove scheduling boost for "SWAPPER" tasks.
[ Upstream commit a80a8461868905823609be97f91776a26befe839 ]
Currently, tasks marked as "swapper" tasks get put to the front of
non-priority rpc_queues, and are sorted earlier than non-swapper tasks on
the transport's ->xmit_queue.
This is pointless as currently *all* tasks for a mount that has swap
enabled on *any* file are marked as "swapper" tasks. So the net result
is that the non-priority rpc_queues are reverse-ordered (LIFO).
This scheduling boost is not necessary to avoid deadlocks, and hurts
fairness, so remove it. If there were a need to expedite some requests,
the tk_priority mechanism is a more appropriate tool.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions