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authorMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>2007-10-18 23:41:06 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 11:53:54 -0700
commit8256e47cdc8923e9959eb1d7f95d80da538add80 (patch)
tree4702aa3ad7c9025f70314f1146e551b4e1dfcbb2 /include/linux/module.h
parent09cadedbdc01f1a4bea1f427d4fb4642eaa19da9 (diff)
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Linux Kernel Markers
The marker activation functions sits in kernel/marker.c. A hash table is used to keep track of the registered probes and armed markers, so the markers within a newly loaded module that should be active can be activated at module load time. marker_query has been removed. marker_get_first, marker_get_next and marker_release should be used as iterators on the markers. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: "Frank Ch. Eigler" <fche@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Mike Mason <mmlnx@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/module.h')
-rw-r--r--include/linux/module.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/module.h b/include/linux/module.h
index 642f325..2cbc0b8 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -15,6 +15,7 @@
#include <linux/stringify.h>
#include <linux/kobject.h>
#include <linux/moduleparam.h>
+#include <linux/marker.h>
#include <asm/local.h>
#include <asm/module.h>
@@ -354,6 +355,10 @@ struct module
/* The command line arguments (may be mangled). People like
keeping pointers to this stuff */
char *args;
+#ifdef CONFIG_MARKERS
+ struct marker *markers;
+ unsigned int num_markers;
+#endif
};
#ifndef MODULE_ARCH_INIT
#define MODULE_ARCH_INIT {}
@@ -457,6 +462,8 @@ int unregister_module_notifier(struct notifier_block * nb);
extern void print_modules(void);
+extern void module_update_markers(struct module *probe_module, int *refcount);
+
#else /* !CONFIG_MODULES... */
#define EXPORT_SYMBOL(sym)
#define EXPORT_SYMBOL_GPL(sym)
@@ -556,6 +563,11 @@ static inline void print_modules(void)
{
}
+static inline void module_update_markers(struct module *probe_module,
+ int *refcount)
+{
+}
+
#endif /* CONFIG_MODULES */
struct device_driver;
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