[OE-core] [PATCH 1/1] latencytop: fix mount error
Roxana Ciobanu
roxana.ciobanu at intel.com
Wed Jul 9 18:52:36 UTC 2014
Added a check to ensure debugfs is not mounted before trying
to mount it, because sysfs.sh already mounts it.
[ YOCTO #6498 ]
Signed-off-by: Roxana Ciobanu <roxana.ciobanu at intel.com>
---
.../latencytop-0.5/latencytop-fsync-mount.patch | 17 +++++++++++++++++
meta/recipes-kernel/latencytop/latencytop_0.5.bb | 5 +++--
2 files changed, 20 insertions(+), 2 deletions(-)
create mode 100644 meta/recipes-kernel/latencytop/latencytop-0.5/latencytop-fsync-mount.patch
diff --git a/meta/recipes-kernel/latencytop/latencytop-0.5/latencytop-fsync-mount.patch b/meta/recipes-kernel/latencytop/latencytop-0.5/latencytop-fsync-mount.patch
new file mode 100644
index 0000000..6de27d0
--- /dev/null
+++ b/meta/recipes-kernel/latencytop/latencytop-0.5/latencytop-fsync-mount.patch
@@ -0,0 +1,17 @@
+Index: latencytop-0.5/fsync.c
+===================================================================
+--- latencytop-0.5.orig/fsync.c 2014-07-09 16:56:32.565238023 +0300
++++ latencytop-0.5/fsync.c 2014-07-09 17:12:00.553237913 +0300
+@@ -151,8 +151,10 @@
+ * echo ftrace_printk > iter_ctrl
+ * echo 1 > tracing_on
+ */
+- ret = system("/bin/mount -t debugfs none /sys/kernel/debug/");
+- if (!ret)
++ ret = system("if ! grep -q debugfs /proc/filesystems; then"
++ " /bin/mount -t debugfs none /sys/kernel/debug/"
++ " else false; fi");
++ if (!ret)
+ return -1;
+ write_to_file("/sys/kernel/debug/tracing/current_tracer", "fsync");
+ write_to_file("/sys/kernel/debug/tracing/iter_ctrl", "ftrace_printk");
diff --git a/meta/recipes-kernel/latencytop/latencytop_0.5.bb b/meta/recipes-kernel/latencytop/latencytop_0.5.bb
index 516e2c5..9a95b92 100644
--- a/meta/recipes-kernel/latencytop/latencytop_0.5.bb
+++ b/meta/recipes-kernel/latencytop/latencytop_0.5.bb
@@ -6,11 +6,12 @@ LIC_FILES_CHKSUM = "file://latencytop.c;endline=23;md5=ee9ea9b1415356e5734adad4a
DEPENDS = "virtual/libintl ncurses glib-2.0 ${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'gtk+', '', d)}"
-PR = "r3"
+PR = "r4"
SRC_URI = "http://www.latencytop.org/download/latencytop-${PV}.tar.gz \
file://latencytop-makefile.patch \
- file://latencytop-fsync.patch"
+ file://latencytop-fsync.patch \
+ file://latencytop-fsync-mount.patch"
SRC_URI[md5sum] = "73bb3371c6ee0b0e68e25289027e865c"
SRC_URI[sha256sum] = "9e7f72fbea7bd918e71212a1eabaad8488d2c602205d2e3c95d62cd57e9203ef"
--
1.9.1
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