systemd/1027-udev-synthesize-change-events-for-partitions-when-to.patch
Robert Milasan 3595bbe8f8 Accepting request 236618 from home:rmilasan:branches:Base:System
- Add upstream patches
  1025-udev-exclude-device-mapper-from-block-device-ownersh.patch
  1026-udevd-inotify-modernizations.patch
  1027-udev-synthesize-change-events-for-partitions-when-to.patch
  1028-udev-link-config-fix-mem-leak.patch
  1029-udev-try-first-re-reading-the-partition-table.patch
  1030-udev-guard-REREADP-logic-with-open-O_ECXL.patch
  1031-udev-make-sure-we-always-get-change-for-the-disk.patch
  1032-udev-guard-REREADPT-by-exclusive-lock-instead-of-O_E.patch 

- Add upstream patches
  1025-udev-exclude-device-mapper-from-block-device-ownersh.patch
  1026-udevd-inotify-modernizations.patch
  1027-udev-synthesize-change-events-for-partitions-when-to.patch
  1028-udev-link-config-fix-mem-leak.patch
  1029-udev-try-first-re-reading-the-partition-table.patch
  1030-udev-guard-REREADP-logic-with-open-O_ECXL.patch
  1031-udev-make-sure-we-always-get-change-for-the-disk.patch
  1032-udev-guard-REREADPT-by-exclusive-lock-instead-of-O_E.patch

OBS-URL: https://build.opensuse.org/request/show/236618
OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=662
2014-06-09 08:41:53 +00:00

85 lines
3.1 KiB
Diff

From f3a740a5dae792fb6b2d411022ce8c29ced1c3f1 Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay@vrfy.org>
Date: Wed, 4 Jun 2014 12:16:28 +0200
Subject: [PATCH] udev: synthesize "change' events for partitions when tools
change the disk
This should make sure that fdisk-like programs will automatically
cause an update of all partitions, just like mkfs-like programs cause
an update of the partition.
Signed-off-by: Robert Milasan <rmilasan@suse.com>
---
src/udev/udevd.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 42 insertions(+), 2 deletions(-)
Index: systemd-210/src/udev/udevd.c
===================================================================
--- systemd-210.orig/src/udev/udevd.c
+++ systemd-210/src/udev/udevd.c
@@ -46,6 +46,7 @@
#include <sys/utsname.h>
#include "udev.h"
+#include "udev-util.h"
#include "sd-daemon.h"
#include "cgroup-util.h"
#include "dev-setup.h"
@@ -736,15 +737,54 @@ out:
return udev_ctrl_connection_unref(ctrl_conn);
}
-static void synthesize_change(struct udev_device *dev) {
+static int synthesize_change(struct udev_device *dev) {
char filename[UTIL_PATH_SIZE];
+ int r;
log_debug("device %s closed, synthesising 'change'", udev_device_get_devnode(dev));
strscpyl(filename, sizeof(filename), udev_device_get_syspath(dev), "/uevent", NULL);
write_string_file(filename, "change");
+
+ /* for disks devices, re-trigger all partitions too */
+ if (streq_ptr("block", udev_device_get_subsystem(dev)) &&
+ streq_ptr("disk", udev_device_get_devtype(dev))) {
+ struct udev *udev = udev_device_get_udev(dev);
+ _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
+ struct udev_list_entry *item;
+
+ e = udev_enumerate_new(udev);
+ if (!e)
+ return -ENOMEM;
+
+ r = udev_enumerate_add_match_parent(e, dev);
+ if (r < 0)
+ return r;
+
+ r = udev_enumerate_add_match_subsystem(e, "block");
+ if (r < 0)
+ return r;
+
+ r = udev_enumerate_scan_devices(e);
+ udev_list_entry_foreach(item, udev_enumerate_get_list_entry(e)) {
+ _cleanup_udev_device_unref_ struct udev_device *d = NULL;
+
+ d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item));
+ if (!d)
+ continue;
+
+ if (!streq_ptr("partition", udev_device_get_devtype(d)))
+ continue;
+
+ log_debug("device %s closed, synthesising partition '%s' 'change'",
+ udev_device_get_devnode(dev), udev_device_get_devnode(d));
+ strscpyl(filename, sizeof(filename), udev_device_get_syspath(d), "/uevent", NULL);
+ write_string_file(filename, "change");
+ }
+ }
+
+ return 0;
}
-/* read inotify messages */
static int handle_inotify(struct udev *udev)
{
int nbytes, pos;