[IA64] Change SET_PERSONALITY to comply with comment in binfmt_elf.c.

We have a customer application which trips a bug.  The problem arises
when a driver attempts to call do_munmap on an area which is mapped, but
because current->thread.task_size has been set to 0xC0000000, the call
to do_munmap fails thinking it is an unmap beyond the user's address
space.

The comment in fs/binfmt_elf.c in load_elf_library() before the call
to SET_PERSONALITY() indicates that task_size must not be changed for
the running application until flush_thread, but is for ia64 executing
ia32 binaries.

This patch moves the setting of task_size from SET_PERSONALITY() to
flush_thread() as indicated.  The customer application no longer is able
to trip the bug.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
index a7280d9f6c16..4e7a6a1ec6c7 100644
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ b/arch/ia64/ia32/binfmt_elf32.c
@@ -261,8 +261,6 @@ elf32_set_personality (void)
 {
         set_personality(PER_LINUX32);
         current->thread.map_base  = IA32_PAGE_OFFSET/3;
-        current->thread.task_size = IA32_PAGE_OFFSET;   /* use what Linux/x86 uses... */
-        set_fs(USER_DS);                                /* set addr limit for new TASK_SIZE */
 }
 
 static unsigned long