1 files changed, 8 insertions, 17 deletions

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index e4eb472558ca..9eee649449a8 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -466,7 +466,8 @@ error_kill:
 #endif
 
 /*
- * present useful information to the program
+ * present useful information to the program by shovelling it onto the new
+ * process's stack
  */
 static int create_elf_fdpic_tables(struct linux_binprm *bprm,
                                    struct mm_struct *mm,
@@ -482,9 +483,13 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
         int loop;
         int nr; /* reset for each csp adjustment */
 
-        /* we're going to shovel a whole load of stuff onto the stack */
 #ifdef CONFIG_MMU
-        sp = bprm->p;
+        /* In some cases (e.g. Hyper-Threading), we want to avoid L1 evictions
+         * by the processes running on the same package. One thing we can do is
+         * to shuffle the initial stack for them, so we give the architecture
+         * an opportunity to do so here.
+         */
+        sp = arch_align_stack(bprm->p);
 #else
         sp = mm->start_stack;
 
@@ -527,20 +532,6 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
                         return -EFAULT;
         }
 
-#if defined(__i386__) && defined(CONFIG_SMP)
-        /* in some cases (e.g. Hyper-Threading), we want to avoid L1 evictions
-         * by the processes running on the same package. One thing we can do is
-         * to shuffle the initial stack for them.
-         *
-         * the conditionals here are unneeded, but kept in to make the code
-         * behaviour the same as pre change unless we have hyperthreaded
-         * processors. This keeps Mr Marcelo Person happier but should be
-         * removed for 2.5
-         */
-        if (smp_num_siblings > 1)
-                sp = sp - ((current->pid % 64) << 7);
-#endif
-
         sp &= ~7UL;
 
         /* stack the load map(s) */