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zdev: Implement --no-settle

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There are some situations where running "udevadm settle" can result in
a deadlock, such as in the early stages of initial RAM-disk processing.

Introduce a new command-line option --no-settle that can be used to
suppress calling "udevadm settle" to allow chzdev to be run in such
situations.

Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Peter Oberparleiter
2017-09-01 11:05:53 +02:00
committed by Jan Höppner
parent 7d355b0fec
commit f32bff9688
5 changed files with 23 additions and 0 deletions
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zdev/include/udev.h
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@@ -14,6 +14,7 @@
#include "exit_code.h"
extern int udev_need_settle;
extern int udev_no_settle;
/* Single key-operator-value entry in a udev rule line.*/
struct udev_entry_node {