From 9edf1b206b69a9f6d6d038d333d8b855145ed4d6 Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Fri, 18 Feb 2011 13:27:31 +0100

Subject: [PATCH] init: set cdrom polling in kernel

and reset to -1 after we are done.

---

 modules.d/99base/init |   22 +++++++++++++++++-----

 1 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/modules.d/99base/init b/modules.d/99base/init

index 0a05e91..b49c87a 100755

--- a/modules.d/99base/init

+++ b/modules.d/99base/init

@@ -203,15 +203,19 @@ while :; do

     # dirty hack for some cdrom drives,

     # which report no medium for quiet

     # some time.

-    if [ ! -e /sys/module/block/parameters/events_dfl_poll_msecs ]; then

-        for cdrom in /sys/block/sr*; do

-            [ -e "$cdrom" ] || continue       

+    for cdrom in /sys/block/sr*; do

+        [ -e "$cdrom" ] || continue 

+        if [ -e "$cdrom"/events_poll_msecs ]; then

+            msecs=$(while read a; do echo $a;done < "$cdrom"/events_poll_msecs)

+            [ "$msecs" = "-1" ] && \

+                echo 1000 > "$cdrom"/events_poll_msecs

+        else

             # skip, if cdrom medium was already found

             strstr "$(udevadm info --query=env --path=${cdrom##/sys})" \

                 ID_CDROM_MEDIA && continue

             echo change > "$cdrom/uevent"        

-        done

-    fi

+        fi

+    done

     i=$(($i+1))

     [ $i -gt $RDRETRY ] \

@@ -220,6 +224,14 @@ done

 unset job

 unset queuetriggered

+# reset cdrom polling

+for cdrom in /sys/block/sr*; do

+    [ -e "$cdrom" ] || continue 

+    if [ -e "$cdrom"/events_poll_msecs ]; then

+        echo -1 > "$cdrom"/events_poll_msecs

+    fi

+done

+

 # pre-mount happens before we try to mount the root filesystem,

 # and happens once.

 getarg 'rd.break=pre-mount' 'rdbreak=pre-mount' && emergency_shell -n pre-mount "Break pre-mount"