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>

1 files changed, 6 insertions, 1 deletions

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 5615440027ec..9f584cc5c5fb 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -12,7 +12,11 @@
 /* .data section */
 #define DATA_DATA                                                       \
         *(.data)                                                        \
-        *(.data.init.refok)
+        *(.data.init.refok)                                             \
+        . = ALIGN(8);                                                   \
+        VMLINUX_SYMBOL(__start___markers) = .;                          \
+        *(__markers)                                                    \
+        VMLINUX_SYMBOL(__stop___markers) = .;
 
 #define RO_DATA(align)                                                  \
         . = ALIGN((align));                                             \
@@ -20,6 +24,7 @@
                 VMLINUX_SYMBOL(__start_rodata) = .;                     \
                 *(.rodata) *(.rodata.*)                                 \
                 *(__vermagic)           /* Kernel version magic */      \
+                *(__markers_strings)    /* Markers: strings */          \
         }                                                               \
                                                                         \
         .rodata1          : AT(ADDR(.rodata1) - LOAD_OFFSET) {          \