bootchart2: remove wait_boot logic

When boot with "init=/sbin/bootchartd" as below:
 # runqemu qemux86 bootparams="init=/sbin/bootchartd"

There are two bootchartd process after boot [1].
 # ps -ef | grep bootchart
root       101     1  0 03:27 ?        00:00:00 /bin/sh /sbin/bootchartd
root       103   101  8 03:27 ?        00:00:02 /lib64/bootchart/bootchart-collector 50
root       106     1  0 03:27 ?        00:00:00 /bin/sh /sbin/bootchartd
root       792   106  0 03:27 ?        00:00:00 /lib64/bootchart/bootchart-collector --usleep 1000000
root       794   725  0 03:27 ttyS0    00:00:00 grep bootchart

 # /sbin/bootchartd stop
[bootchart] bootchart-collector started as pid 596 with 2 args:
[bootchart] '--dump'
[bootchart] '/tmp/bootchart.3lXpVDAq3v'
[bootchart] Extracting profile data from pid 204
[bootchart] map 0xbed9a000 -> 0xbedbb000 size: 132k from 'bed9a000' 'bedbb000'
[bootchart] read 135168 bytes of 135168
[bootchart] reading 150 chunks (of 150) ...
[bootchart] wrote 18760 kbB
[bootchart] bootchart-collector pid: 596 unmounted proc / clean exit

But there still one process exist after the above stop command finish.
 # ps -ef | grep bootchartd
root 202 1 0 09:09 ? 00:00:00 /bin/sh /sbin/bootchartd
root 629 516 0 09:10 ? 00:00:00 grep bootchartd

Remove the wait_boot which used to wait the boot process to finish to
make sure only one bootchartd process and meanwhile we don't need the
wait_boot logic because we either use "/sbin/bootchartd stop" to stop
the bootchartd manually or install package bootchartd-stop-initscript
altogether with bootchart2 to stop bootchartd automatically after boot.

After patch:
 # ps -ef | grep bootchart
 root       101     1  0 03:36 ?        00:00:00 /bin/sh /sbin/bootchartd
 root       103   101  6 03:36 ?        00:00:04 /lib64/bootchart/bootchart-collector 50
 root       596   592  0 03:37 ttyS0    00:00:00 grep bootchart

[1] https://github.com/xrmx/bootchart/issues/94

(From OE-Core rev: cc34e3bdedc045baf97ebc2258295d9433cb332e)

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-devtools/bootchart2/bootchart2_0.14.9.bb b/meta/recipes-devtools/bootchart2/bootchart2_0.14.9.bb
index 59fcd8c78a..87f7631ddc 100644
--- a/meta/recipes-devtools/bootchart2/bootchart2_0.14.9.bb
+++ b/meta/recipes-devtools/bootchart2/bootchart2_0.14.9.bb
@@ -94,6 +94,7 @@ SRC_URI = "git://github.com/xrmx/bootchart.git;branch=master;protocol=https \
            file://bootchartd_stop.sh \
            file://0001-collector-Allocate-space-on-heap-for-chunks.patch \
            file://0001-bootchart2-support-usrmerge.patch \
+           file://0001-bootchartd.in-make-sure-only-one-bootchartd-process.patch \
           "
 
 S = "${WORKDIR}/git"