Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
umask(0022);
- if ((r = parse_argv(argc, argv)) <= 0)
+ r = parse_argv(argc, argv);
+ if (r <= 0)
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
root = optind < argc ? argv[optind] : "/";
+ /* Skip this step on read-only media. Note that we check the
+ * underlying block device here, not he read-only flag of the
+ * file system on top, since that one is most likely mounted
+ * read-only anyway at boot, even if the underlying block
+ * device is theoretically writable. */
if (fs_on_read_only(root) > 0) {
log_info("Disabling readahead collector due to read-only media.");
return 0;
return 0;
}
- if (detect_virtualization(NULL) > 0) {
- log_info("Disabling readahead collector due to execution in virtualized environment.");
- return 0;
- }
-
- if (!(shared = shared_get()))
+ shared = shared_get();
+ if (!shared)
return 1;
shared->collect = getpid();