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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: Thu, 25 Mar 2021 19:52:45 -0500
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Subject: [PATCH] multipathd: improve getting parent udevice in rescan_path
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Instead of looping through parents and checking, just call
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udev_device_get_parent_with_subsystem_devtype() to get the
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right one.
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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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multipathd/main.c | 14 +++++---------
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1 file changed, 5 insertions(+), 9 deletions(-)
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diff --git a/multipathd/main.c b/multipathd/main.c
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index 1fbc31eb..4598d354 100644
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--- a/multipathd/main.c
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+++ b/multipathd/main.c
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@@ -823,16 +823,12 @@ ev_remove_map (char * devname, char * alias, int minor, struct vectors * vecs)
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}
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static void
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-rescan_path(struct udev_device *parent)
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+rescan_path(struct udev_device *ud)
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{
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- while(parent) {
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- const char *subsys = udev_device_get_subsystem(parent);
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- if (subsys && !strncmp(subsys, "scsi", 4))
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- break;
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- parent = udev_device_get_parent(parent);
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- }
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- if (parent)
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- sysfs_attr_set_value(parent, "rescan", "1", strlen("1"));
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+ ud = udev_device_get_parent_with_subsystem_devtype(ud, "scsi",
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+ "scsi_device");
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+ if (ud)
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+ sysfs_attr_set_value(ud, "rescan", "1", strlen("1"));
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}
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void
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--
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2.17.2
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