6 files changed, 34 insertions, 8 deletions
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 3c88210..ba0b6a1 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -37,7 +37,7 @@
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm/kregs.h>
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/pgtable.h>
 #include <asm/percpu.h>
 #include <asm/processor.h>
@@ -470,6 +470,29 @@ ENTRY(load_switch_stack)
 	br.cond.sptk.many b7
 END(load_switch_stack)
 
+GLOBAL_ENTRY(prefetch_stack)
+	add r14 = -IA64_SWITCH_STACK_SIZE, sp
+	add r15 = IA64_TASK_THREAD_KSP_OFFSET, in0
+	;;
+	ld8 r16 = [r15]				// load next's stack pointer
+	lfetch.fault.excl [r14], 128
+	;;
+	lfetch.fault.excl [r14], 128
+	lfetch.fault [r16], 128
+	;;
+	lfetch.fault.excl [r14], 128
+	lfetch.fault [r16], 128
+	;;
+	lfetch.fault.excl [r14], 128
+	lfetch.fault [r16], 128
+	;;
+	lfetch.fault.excl [r14], 128
+	lfetch.fault [r16], 128
+	;;
+	lfetch.fault [r16], 128
+	br.ret.sptk.many rp
+END(prefetch_switch_stack)
+
 GLOBAL_ENTRY(execve)
 	mov r15=__NR_execve			// put syscall number in place
 	break __BREAK_SYSCALL
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 7d7684a..2ddbac6 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -14,7 +14,7 @@
 
 #include <asm/asmmacro.h>
 #include <asm/errno.h>
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/percpu.h>
 #include <asm/thread_info.h>
 #include <asm/sal.h>
diff --git a/arch/ia64/kernel/gate.S b/arch/ia64/kernel/gate.S
index 86948ce..86064ca 100644
--- a/arch/ia64/kernel/gate.S
+++ b/arch/ia64/kernel/gate.S
@@ -10,7 +10,7 @@
 
 #include <asm/asmmacro.h>
 #include <asm/errno.h>
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/sigcontext.h>
 #include <asm/system.h>
 #include <asm/unistd.h>
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 8d3a929..bfe65b2 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -25,7 +25,7 @@
 #include <asm/fpu.h>
 #include <asm/kregs.h>
 #include <asm/mmu_context.h>
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/pal.h>
 #include <asm/pgtable.h>
 #include <asm/processor.h>
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
index 3bb3a13..3ba8384 100644
--- a/arch/ia64/kernel/ivt.S
+++ b/arch/ia64/kernel/ivt.S
@@ -44,7 +44,7 @@
 #include <asm/break.h>
 #include <asm/ia32.h>
 #include <asm/kregs.h>
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/pgtable.h>
 #include <asm/processor.h>
 #include <asm/ptrace.h>
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index f1201ac..1650353 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -38,6 +38,7 @@
 #include <linux/pagemap.h>
 #include <linux/mount.h>
 #include <linux/bitops.h>
+#include <linux/rcupdate.h>
 
 #include <asm/errno.h>
 #include <asm/intrinsics.h>
@@ -496,7 +497,7 @@ typedef struct {
 static pfm_stats_t		pfm_stats[NR_CPUS];
 static pfm_session_t		pfm_sessions;	/* global sessions information */
 
-static spinlock_t pfm_alt_install_check = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pfm_alt_install_check);
 static pfm_intr_handler_desc_t  *pfm_alt_intr_handler;
 
 static struct proc_dir_entry 	*perfmon_dir;
@@ -2217,15 +2218,17 @@ static void
 pfm_free_fd(int fd, struct file *file)
 {
 	struct files_struct *files = current->files;
+	struct fdtable *fdt = files_fdtable(files);
 
 	/* 
 	 * there ie no fd_uninstall(), so we do it here
 	 */
 	spin_lock(&files->file_lock);
-        files->fd[fd] = NULL;
+	rcu_assign_pointer(fdt->fd[fd], NULL);
 	spin_unlock(&files->file_lock);
 
-	if (file) put_filp(file);
+	if (file)
+		put_filp(file);
 	put_unused_fd(fd);
 }