[GIT PULL] x86 fixes

Ingo Molnar
2011-01-18T19:05:19Z

Linus,

Please pull the latest x86-fixes-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-fixes-for-linus

Thanks,

Ingo

------------------>
Brian Gerst (1):
x86: Clear irqstack thread_info

Shaohua Li (1):
x86: Make relocatable kernel work with new binutils

arch/x86/kernel/irq_32.c | 7 ++-----
arch/x86/kernel/vmlinux.lds.S | 11 +++++++++--
2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 96656f2..5206bb9 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -129,8 +129,7 @@ void __cpuinit irq_ctx_init(int cpu)
irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
THREAD_FLAGS,
THREAD_ORDER));
- irqctx->tinfo.task = NULL;
- irqctx->tinfo.exec_domain = NULL;
+ memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
irqctx->tinfo.cpu = cpu;
irqctx->tinfo.preempt_count = HARDIRQ_OFFSET;
irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
@@ -140,10 +139,8 @@ void __cpuinit irq_ctx_init(int cpu)
irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
THREAD_FLAGS,
THREAD_ORDER));
- irqctx->tinfo.task = NULL;
- irqctx->tinfo.exec_domain = NULL;
+ memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
irqctx->tinfo.cpu = cpu;
- irqctx->tinfo.preempt_count = 0;
irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);

per_cpu(softirq_ctx, cpu) = irqctx;
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index bf47007..b34ab80 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -34,11 +34,9 @@ OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT)
#ifdef CONFIG_X86_32
OUTPUT_ARCH(i386)
ENTRY(phys_startup_32)
-jiffies = jiffies_64;
#else
OUTPUT_ARCH(i386:x86-64)
ENTRY(phys_startup_64)
-jiffies_64 = jiffies;
#endif

#if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
@@ -142,6 +140,15 @@ SECTIONS
CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)

DATA_DATA
+ /*
+ * Workaround a binutils (2.20.51.0.12 to 2.21.51.0.3) bug.
+ * This makes jiffies relocatable in such binutils
+ */
+#ifdef CONFIG_X86_32
+ jiffies = jiffies_64;
+#else
+ jiffies_64 = jiffies;
+#endif
CONSTRUCTORS

/* rarely changed data like cpu maps */