powerpc: TIF_ABI_PENDING bit removal

commit 94f28da8409c6059135e89ac64a0839993124155 upstream.

Here are the powerpc bits to remove TIF_ABI_PENDING now that
set_personality() is called at the appropriate place in exec.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 014a624f4c8efb054bd46da4e5711713b3e76b68..56985023a47d5f4191179b19d663ca4df46b655d 100644 (file)
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -236,14 +236,10 @@ typedef elf_vrregset_t elf_fpxregset_t;
 #ifdef __powerpc64__
 # define SET_PERSONALITY(ex)                                   \
 do {                                                           \
-       unsigned long new_flags = 0;                            \
        if ((ex).e_ident[EI_CLASS] == ELFCLASS32)               \
-               new_flags = _TIF_32BIT;                         \
-       if ((current_thread_info()->flags & _TIF_32BIT)         \
-           != new_flags)                                       \
-               set_thread_flag(TIF_ABI_PENDING);               \
+               set_thread_flag(TIF_32BIT);                     \
        else                                                    \
-               clear_thread_flag(TIF_ABI_PENDING);             \
+               clear_thread_flag(TIF_32BIT);                   \
        if (personality(current->personality) != PER_LINUX32)   \
                set_personality(PER_LINUX |                     \
                        (current->personality & (~PER_MASK)));  \

diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index c8b329255678802bc34e27c85e84bf5338be25ea..aa9d383a1c09525daab6721a24b67607fcaeaf8f 100644 (file)
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -111,7 +111,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NOTIFY_RESUME      13      /* callback before returning to user */
 #define TIF_FREEZE             14      /* Freezing for suspend */
 #define TIF_RUNLATCH           15      /* Is the runlatch enabled? */
-#define TIF_ABI_PENDING                16      /* 32/64 bit switch needed */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
@@ -129,7 +128,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_FREEZE            (1<<TIF_FREEZE)
 #define _TIF_RUNLATCH          (1<<TIF_RUNLATCH)
-#define _TIF_ABI_PENDING       (1<<TIF_ABI_PENDING)
 #define _TIF_SYSCALL_T_OR_A    (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
 
 #define _TIF_USER_WORK_MASK    (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index c930ac38e59f0274cf488d28c441aafe4b6c0c65..7b816daf3ebaf595726991c671d6698b91e5cbec 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -554,18 +554,6 @@ void exit_thread(void)
 
 void flush_thread(void)
 {
-#ifdef CONFIG_PPC64
-       struct thread_info *t = current_thread_info();
-
-       if (test_ti_thread_flag(t, TIF_ABI_PENDING)) {
-               clear_ti_thread_flag(t, TIF_ABI_PENDING);
-               if (test_ti_thread_flag(t, TIF_32BIT))
-                       clear_ti_thread_flag(t, TIF_32BIT);
-               else
-                       set_ti_thread_flag(t, TIF_32BIT);
-       }
-#endif
-
        discard_lazy_cpu_state();
 
        if (current->thread.dabr) {