X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Freadahead%2Freadahead-replay.c;h=f91020e805fd44cc92ad2c446ea96d4965239183;hb=e677bf7ef610acdc5068b9d5d4c79556a236e52f;hp=65011ac4be3996d0ff41f92f44e889fdf3cb289a;hpb=e5e83e8362e946890ac991fc86a2c5869f9befdf;p=elogind.git

diff --git a/src/readahead/readahead-replay.c b/src/readahead/readahead-replay.c
index 65011ac4b..f91020e80 100644
--- a/src/readahead/readahead-replay.c
+++ b/src/readahead/readahead-replay.c
@@ -6,16 +6,16 @@
   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/>.
 ***/
 
@@ -35,10 +35,11 @@
 #include <getopt.h>
 #include <sys/inotify.h>
 
+#include <systemd/sd-daemon.h>
+
 #include "missing.h"
 #include "util.h"
 #include "set.h"
-#include "sd-daemon.h"
 #include "ioprio.h"
 #include "readahead-common.h"
 #include "virt.h"
@@ -185,7 +186,13 @@ static int replay(const char *root) {
         if (on_ssd)
                 prio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0);
         else
-                prio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_RT, 7);
+                /* We are not using RT here, since we'd starve IO that
+                we didn't record (which is for example blkid, since
+                its disk accesses go directly to the block device and
+                are thus not visible in fallocate) to death. However,
+                we do ask for an IO prio that is slightly higher than
+                the default (which is BE. 4) */
+                prio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 2);
 
         if (ioprio_set(IOPRIO_WHO_PROCESS, getpid(), prio) < 0)
                 log_warning("Failed to set IDLE IO priority class: %m");
@@ -337,13 +344,14 @@ int main(int argc, char*argv[]) {
         int r;
         const char *root;
 
-        log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
+        log_set_target(LOG_TARGET_AUTO);
         log_parse_environment();
         log_open();
 
         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] : "/";
@@ -353,12 +361,8 @@ int main(int argc, char*argv[]) {
                 return 0;
         }
 
-        if (detect_virtualization(NULL) > 0) {
-                log_info("Disabling readahead replay due to execution in virtualized environment.");
-                return 0;
-        }
-
-        if (!(shared = shared_get()))
+        shared = shared_get();
+        if (!shared)
                 return 1;
 
         shared->replay = getpid();