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authorddomingo <ddomingo@redhat.com>2008-10-27 12:56:53 +1000
committerddomingo <ddomingo@redhat.com>2008-10-27 12:56:53 +1000
commitd60f18067e710a120d3ff063c76500941a0b5ecb (patch)
treeb52f86d2638658d7f0bf2cc0ae238436f57a8b5c
parent165cfc683521e3e323e54a7c5b24628d84c7eb63 (diff)
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added simplified traceio2
-rw-r--r--testsuite/systemtap.examples/io/traceio2-simple.meta13
-rwxr-xr-xtestsuite/systemtap.examples/io/traceio2-simple.stp8
2 files changed, 21 insertions, 0 deletions
diff --git a/testsuite/systemtap.examples/io/traceio2-simple.meta b/testsuite/systemtap.examples/io/traceio2-simple.meta
new file mode 100644
index 00000000..558539e3
--- /dev/null
+++ b/testsuite/systemtap.examples/io/traceio2-simple.meta
@@ -0,0 +1,13 @@
+title: Watch I/O Activity on a Particular Device Simplified
+name: traceio2-simple.stp
+version: 1.0
+author: Red Hat
+keywords: io
+subsystem: io
+status: production
+exit: user-controlled
+output: trace
+scope: system-wide
+description: Print out the executable name and process number as reads and writes to the specified device occur.
+test_check: stap -p4 traceio2.stp 8 5
+test_installcheck: stap traceio2.stp 8 5 -c "sleep 1"
diff --git a/testsuite/systemtap.examples/io/traceio2-simple.stp b/testsuite/systemtap.examples/io/traceio2-simple.stp
new file mode 100755
index 00000000..ed5efdd1
--- /dev/null
+++ b/testsuite/systemtap.examples/io/traceio2-simple.stp
@@ -0,0 +1,8 @@
+probe kernel.function ("vfs_write"),
+kernel.function ("vfs_read")
+{
+dev_nr = $file->f_dentry->d_inode->i_sb->s_dev
+inode_nr = $file->f_dentry->d_inode->i_ino
+if (dev_nr == ($1 &lt;&lt; 20 | $2))
+printf ("%s(%d) %s 0x%x\n", execname(), pid(), probefunc(), dev_nr)
+}