device-mapper-multipath/SOURCES/0076-multipath.conf-5-remove-io-affinity-information.patch
2023-03-29 01:39:40 +00:00

34 lines
1.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 29 Nov 2022 19:56:37 -0600
Subject: [PATCH] multipath.conf(5): remove io-affinity information
The multpath-tools do not support the io-affinity path selector. We
always add a repeat count as the path argument. The io-affinity selector
doesn't take one. Instead it takes a bit map of CPUs that a path can
run on. This isn't something that lends itself to the kind of
auto-assembling that multipathd does. But even if we did want to
try to support this path-selector, until we do, we shouldn't be listing
it in the multipath.conf documentation.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/multipath.conf.5 | 4 ----
1 file changed, 4 deletions(-)
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
index 01904feb..5e447e67 100644
--- a/multipath/multipath.conf.5
+++ b/multipath/multipath.conf.5
@@ -211,10 +211,6 @@ of outstanding I/O to the path and its relative throughput.
estimation of future service time based on the history of previous I/O submitted
to each path.
.TP
-.I "io-affinity 0"
-(Since 5.11 kernel) Choose the path for the next bunch of I/O based on a CPU to
-path mapping the user passes in and what CPU we are executing on.
-.TP
The default is: \fBservice-time 0\fR
.RE
.