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Subject[GIT PULL] perf fixes
Linus,

Please pull the latest perf-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf-urgent-for-linus

Thanks,

Ingo

------------------>
Ingo Molnar (1):
core_kernel_data(): Fix architectures that do not define _sdata

Steven Rostedt (1):
extable, core_kernel_data(): Make sure all archs define _sdata


arch/alpha/kernel/vmlinux.lds.S | 1 +
arch/m32r/kernel/vmlinux.lds.S | 1 +
arch/m68k/kernel/vmlinux-std.lds | 2 ++
arch/m68k/kernel/vmlinux-sun3.lds | 1 +
arch/mips/kernel/vmlinux.lds.S | 1 +
arch/parisc/kernel/vmlinux.lds.S | 3 +++
kernel/extable.c | 10 ++++++++++
7 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S
index 433be2a..3d890a9 100644
--- a/arch/alpha/kernel/vmlinux.lds.S
+++ b/arch/alpha/kernel/vmlinux.lds.S
@@ -46,6 +46,7 @@ SECTIONS
__init_end = .;
/* Freed after init ends here */

+ _sdata = .; /* Start of rw data section */
_data = .;
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)

diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index c194d64..cf95aec 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -44,6 +44,7 @@ SECTIONS
EXCEPTION_TABLE(16)
NOTES

+ _sdata = .; /* Start of data section */
RODATA
RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
_edata = .; /* End of data section */
diff --git a/arch/m68k/kernel/vmlinux-std.lds b/arch/m68k/kernel/vmlinux-std.lds
index 878be5f..d099359 100644
--- a/arch/m68k/kernel/vmlinux-std.lds
+++ b/arch/m68k/kernel/vmlinux-std.lds
@@ -25,6 +25,8 @@ SECTIONS

EXCEPTION_TABLE(16)

+ _sdata = .; /* Start of data section */
+
RODATA

RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE)
diff --git a/arch/m68k/kernel/vmlinux-sun3.lds b/arch/m68k/kernel/vmlinux-sun3.lds
index 1ad6b7a..8080469 100644
--- a/arch/m68k/kernel/vmlinux-sun3.lds
+++ b/arch/m68k/kernel/vmlinux-sun3.lds
@@ -25,6 +25,7 @@ SECTIONS
_etext = .; /* End of text section */

EXCEPTION_TABLE(16) :data
+ _sdata = .; /* Start of rw data section */
RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE) :data
/* End of data goes *here* so that freeing init code works properly. */
_edata = .;
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index cd2ca54..01af387 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -65,6 +65,7 @@ SECTIONS
NOTES :text :note
.dummy : { *(.dummy) } :text

+ _sdata = .; /* Start of data section */
RODATA

/* writeable */
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 8f1e4ef..2d9a5c7 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -69,6 +69,9 @@ SECTIONS
/* End of text section */
_etext = .;

+ /* Start of data section */
+ _sdata = .;
+
RODATA

/* writeable */
diff --git a/kernel/extable.c b/kernel/extable.c
index c2d625f..5339705 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -72,6 +72,16 @@ int core_kernel_text(unsigned long addr)
return 0;
}

+/**
+ * core_kernel_data - tell if addr points to kernel data
+ * @addr: address to test
+ *
+ * Returns true if @addr passed in is from the core kernel data
+ * section.
+ *
+ * Note: On some archs it may return true for core RODATA, and false
+ * for others. But will always be true for core RW data.
+ */
int core_kernel_data(unsigned long addr)
{
if (addr >= (unsigned long)_sdata &&

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