From: Scott James Remnant <scott@ubuntu.com>
To: linux-hotplug@vger.kernel.org
Subject: [PATCH] Expose delayed name resolution
Date: Tue, 20 Jan 2009 21:41:47 +0000 [thread overview]
Message-ID: <1232487707.23851.55.camel@quest> (raw)
[-- Attachment #1: Type: text/plain, Size: 2977 bytes --]
udevd had the ability to delay name resolution until the event, but this
was never exposed. Add a --resolve-names=late option to do so.
---
NEWS | 3 ++-
udev/udevd.c | 8 +++++---
udev/udevd.xml | 5 +++--
3 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/NEWS b/NEWS
index 52bfa6a..972b9b0 100644
--- a/NEWS
+++ b/NEWS
@@ -6,7 +6,8 @@ The udevadm test command has no longer a --force option, nodes and symlinks
are always updated with a test run now.
The udevd daemon can be started with --resolve-names=never to avoid all user
-and group lookups (e.g. in cut-down systems).
+and group lookups (e.g. in cut-down systems) or --resolve-names=late to
+lookup user and groups every time events are handled.
udev 136
========
diff --git a/udev/udevd.c b/udev/udevd.c
index 9a8d791..4d6f465 100644
--- a/udev/udevd.c
+++ b/udev/udevd.c
@@ -683,16 +683,18 @@ int main(int argc, char *argv[])
case 'N':
if (strcmp (optarg, "early") == 0) {
resolve_names = 1;
+ } else if (strcmp (optarg, "late") == 0) {
+ resolve_names = 0;
} else if (strcmp (optarg, "never") == 0) {
resolve_names = -1;
} else {
- fprintf(stderr, "resolve-names must be early or never\n");
- err(udev, "resolve-names must be early or never\n");
+ fprintf(stderr, "resolve-names must be early, late or never\n");
+ err(udev, "resolve-names must be early, late or never\n");
goto exit;
}
break;
case 'h':
- printf("Usage: udevd [--help] [--daemon] [--debug-trace] [--debug] [--resolve-names=early|never] [--version]\n");
+ printf("Usage: udevd [--help] [--daemon] [--debug-trace] [--debug] [--resolve-names=early|late|never] [--version]\n");
goto exit;
case 'V':
printf("%s\n", VERSION);
diff --git a/udev/udevd.xml b/udev/udevd.xml
index 010411c..0df6f4b 100644
--- a/udev/udevd.xml
+++ b/udev/udevd.xml
@@ -29,7 +29,7 @@
<arg><option>--debug-trace</option></arg>
<arg><option>--debug</option></arg>
<arg><option>--version</option></arg>
- <arg><option>--resolve-names=early|never</option></arg>
+ <arg><option>--resolve-names=early|late|never</option></arg>
<arg><option>--help</option></arg>
</cmdsynopsis>
</refsynopsisdiv>
@@ -70,7 +70,8 @@
<listitem>
<para>Specify when udevd should resolve names of users and groups.
When set to <option>early</option> (the default) names will be
- resolved when the rules are parsed.
+ resolved when the rules are parsed. When set to
+ <option>late</option> names will be resolved for every event.
When set to <option>never</option> names will never be resolved
and all devices will be owned by root.</para>
</listitem>
--
1.6.0.5
--
Scott James Remnant
scott@ubuntu.com
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 197 bytes --]
reply other threads:[~2009-01-20 21:41 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1232487707.23851.55.camel@quest \
--to=scott@ubuntu.com \
--cc=linux-hotplug@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).