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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Benjamin Marzinski <bmarzins@redhat.com>
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Date: Wed, 13 Apr 2022 23:27:39 -0500
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Subject: [PATCH] libmultipath: check the overrides pctable for path variables
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Paths will now also check the pctable when checking for attribtes that
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exists in both the overrides section and the protocol subsection. Values
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in a matching pcentry will be used in preference to values in the
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overrides hwentry.
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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Reviewed-by: Martin Wilck <mwilck@suse.com>
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---
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libmultipath/propsel.c | 29 ++++++++++++++++++++++++++---
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1 file changed, 26 insertions(+), 3 deletions(-)
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diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
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index f146fe64..2b47f5f8 100644
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--- a/libmultipath/propsel.c
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+++ b/libmultipath/propsel.c
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@@ -80,6 +80,8 @@ static const char conf_origin[] =
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"(setting: multipath.conf defaults/devices section)";
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static const char overrides_origin[] =
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"(setting: multipath.conf overrides section)";
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+static const char overrides_pce_origin[] =
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+ "(setting: multipath.conf overrides protocol section)";
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static const char cmdline_origin[] =
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"(setting: multipath command line [-p] flag)";
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static const char autodetect_origin[] =
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@@ -147,6 +149,27 @@ do { \
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} \
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} while (0)
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+#define pp_set_ovr_pce(var) \
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+do { \
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+ struct pcentry *_pce; \
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+ int _i; \
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+ \
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+ if (conf->overrides) { \
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+ vector_foreach_slot(conf->overrides->pctable, _pce, _i) { \
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+ if (_pce->type == (int)bus_protocol_id(pp) && _pce->var) { \
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+ pp->var = _pce->var; \
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+ origin = overrides_pce_origin; \
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+ goto out; \
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+ } \
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+ } \
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+ if (conf->overrides->var) { \
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+ pp->var = conf->overrides->var; \
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+ origin = overrides_origin; \
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+ goto out; \
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+ } \
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+ } \
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+} while (0)
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+
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int select_mode(struct config *conf, struct multipath *mp)
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{
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const char *origin;
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@@ -775,7 +798,7 @@ int select_fast_io_fail(struct config *conf, struct path *pp)
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const char *origin;
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STRBUF_ON_STACK(buff);
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- pp_set_ovr(fast_io_fail);
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+ pp_set_ovr_pce(fast_io_fail);
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pp_set_hwe(fast_io_fail);
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pp_set_conf(fast_io_fail);
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pp_set_default(fast_io_fail, DEFAULT_FAST_IO_FAIL);
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@@ -791,7 +814,7 @@ int select_dev_loss(struct config *conf, struct path *pp)
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const char *origin;
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STRBUF_ON_STACK(buff);
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- pp_set_ovr(dev_loss);
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+ pp_set_ovr_pce(dev_loss);
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pp_set_hwe(dev_loss);
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pp_set_conf(dev_loss);
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pp->dev_loss = DEV_LOSS_TMO_UNSET;
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@@ -808,7 +831,7 @@ int select_eh_deadline(struct config *conf, struct path *pp)
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const char *origin;
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STRBUF_ON_STACK(buff);
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- pp_set_ovr(eh_deadline);
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+ pp_set_ovr_pce(eh_deadline);
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pp_set_hwe(eh_deadline);
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pp_set_conf(eh_deadline);
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pp->eh_deadline = EH_DEADLINE_UNSET;
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