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powerpc: TIF_ABI_PENDING bit removal

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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>
This commit is contained in:
Andreas Schwab 2010-01-30 10:20:59 +00:00 committed by Benjamin Herrenschmidt
parent bf647fafda
commit 94f28da840
3 changed files with 2 additions and 20 deletions
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8
arch/powerpc/include/asm/elf.h
View file

@ -235,14 +235,10 @@ typedef elf_vrregset_t elf_fpxregset_t;
#ifdef __powerpc64__ #ifdef __powerpc64__
# define SET_PERSONALITY(ex) \ # define SET_PERSONALITY(ex) \
do { \ do { \
unsigned long new_flags = 0; \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
new_flags = _TIF_32BIT; \ set_thread_flag(TIF_32BIT); \
if ((current_thread_info()->flags & _TIF_32BIT) \
!= new_flags) \
set_thread_flag(TIF_ABI_PENDING); \
else \ else \
clear_thread_flag(TIF_ABI_PENDING); \ clear_thread_flag(TIF_32BIT); \
if (personality(current->personality) != PER_LINUX32) \ if (personality(current->personality) != PER_LINUX32) \
set_personality(PER_LINUX | \ set_personality(PER_LINUX | \
(current->personality & (~PER_MASK))); \ (current->personality & (~PER_MASK))); \

2
arch/powerpc/include/asm/thread_info.h
View file

@ -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_NOTIFY_RESUME 13 /* callback before returning to user */
#define TIF_FREEZE 14 /* Freezing for suspend */ #define TIF_FREEZE 14 /* Freezing for suspend */
#define TIF_RUNLATCH 15 /* Is the runlatch enabled? */ #define TIF_RUNLATCH 15 /* Is the runlatch enabled? */
#define TIF_ABI_PENDING 16 /* 32/64 bit switch needed */
/* as above, but as bit values */ /* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #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_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_FREEZE (1<<TIF_FREEZE) #define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_RUNLATCH (1<<TIF_RUNLATCH) #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_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \

12
arch/powerpc/kernel/process.c
View file

@ -554,18 +554,6 @@ void exit_thread(void)
void flush_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(); discard_lazy_cpu_state();
if (current->thread.dabr) { if (current->thread.dabr) {