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From d5483b0df96bd2a1cf86039cf4c6822ec7d7f609 Mon Sep 17 00:00:00 2001
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From: Gorka Eguileor <geguileo@redhat.com>
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Date: Fri, 17 Mar 2017 16:00:11 +0100
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Subject: Fix manual LUN scans feature
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The newly introduced feature to disable automatic scans should not be
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scanning *any* of the LUNs when the scan is set to manual, but it always
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scans for LUN0.
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This patch fixes this by skipping the sysfs call altogether, as it
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should have been doing from the start.
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---
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usr/iscsi_sysfs.c | 13 +++++++------
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usr/iscsi_sysfs.h | 2 +-
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2 files changed, 8 insertions(+), 7 deletions(-)
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diff --git a/usr/iscsi_sysfs.c b/usr/iscsi_sysfs.c
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index 2f94b632baaa..0cc55b97bde9 100644
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--- a/usr/iscsi_sysfs.c
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+++ b/usr/iscsi_sysfs.c
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@@ -1883,18 +1883,19 @@ void iscsi_sysfs_rescan_device(void *data, int hostno, int target, int lun)
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strlen(write_buf));
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}
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-pid_t iscsi_sysfs_scan_host(int hostno, int async, int full_scan)
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+pid_t iscsi_sysfs_scan_host(int hostno, int async, int autoscan)
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{
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char id[NAME_SIZE];
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- char write_buf[6] = "- - 0";
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+ char *write_buf = "- - -";
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pid_t pid = 0;
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- if (full_scan)
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- write_buf[4] = '-';
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-
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if (async)
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pid = fork();
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- if (pid == 0) {
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+
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+ if (pid >= 0 && !autoscan) {
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+ if (pid)
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+ log_debug(4, "host%d in manual scan mode, skipping scan", hostno);
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+ } else if (pid == 0) {
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/* child */
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log_debug(4, "scanning host%d", hostno);
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diff --git a/usr/iscsi_sysfs.h b/usr/iscsi_sysfs.h
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index 3492ce6e033c..cdcefa65f683 100644
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--- a/usr/iscsi_sysfs.h
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+++ b/usr/iscsi_sysfs.h
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@@ -87,7 +87,7 @@ extern void iscsi_sysfs_get_negotiated_session_conf(int sid,
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struct iscsi_session_operational_config *conf);
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extern void iscsi_sysfs_get_negotiated_conn_conf(int sid,
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struct iscsi_conn_operational_config *conf);
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-extern pid_t iscsi_sysfs_scan_host(int hostno, int async, int full);
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+extern pid_t iscsi_sysfs_scan_host(int hostno, int async, int autoscan);
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extern int iscsi_sysfs_get_session_state(char *state, int sid);
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extern int iscsi_sysfs_get_host_state(char *state, int host_no);
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extern int iscsi_sysfs_get_device_state(char *state, int host_no, int target,
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--
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2.9.3
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