30 lines
1.3 KiB
Diff
30 lines
1.3 KiB
Diff
|
From 02ba8fb3357daf57f6120ac512fb464a4c623419 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Kay Sievers <kay@vrfy.org>
|
||
|
|
Date: Wed, 4 Jun 2014 16:21:19 +0200
|
||
|
|
Subject: [PATCH] udev: guard REREADPT by exclusive lock instead of O_EXCL
|
||
|
|
|
||
|
|
Signed-off-by: Robert Milasan <rmilasan@suse.com>
|
||
|
|
---
|
||
|
|
src/udev/udevd.c | 7 +++++--
|
||
|
|
1 file changed, 5 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
Index: systemd-210/src/udev/udevd.c
|
||
|
|
===================================================================
|
||
|
|
--- systemd-210.orig/src/udev/udevd.c
|
||
|
|
+++ systemd-210/src/udev/udevd.c
|
||
|
|
@@ -758,9 +758,12 @@ static int synthesize_change(struct udev
|
||
|
|
* partition table is found, and we will not get an event for
|
||
|
|
* the disk.
|
||
|
|
*/
|
||
|
|
- fd = open(udev_device_get_devnode(dev), O_RDONLY|O_EXCL|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK);
|
||
|
|
+ fd = open(udev_device_get_devnode(dev), O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK);
|
||
|
|
if (fd >= 0) {
|
||
|
|
- r = ioctl(fd, BLKRRPART, 0);
|
||
|
|
+ r = flock(fd, LOCK_EX|LOCK_NB);
|
||
|
|
+ if (r >= 0)
|
||
|
|
+ r = ioctl(fd, BLKRRPART, 0);
|
||
|
|
+
|
||
|
|
close(fd);
|
||
|
|
if (r >= 0)
|
||
|
|
part_table_read = true;
|