Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86 (baadac8b) · Commits · EulixOS / Software / Kernel

arch/x86/Kconfig

+0 −3

Original line number	Diff line number	Diff line
		@@ -66,9 +66,6 @@ config MMU
		config ZONE_DMA
		def_bool y

		config QUICKLIST
		def_bool X86_32

		config SBUS
		bool

arch/x86/kernel/ptrace.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -1055,10 +1055,17 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 value)
		R32(esi, si);
		R32(ebp, bp);
		R32(eax, ax);
		R32(orig_eax, orig_ax);
		R32(eip, ip);
		R32(esp, sp);

		case offsetof(struct user32, regs.orig_eax):
		/*
		* Sign-extend the value so that orig_eax = -1
		* causes (long)orig_ax < 0 tests to fire correctly.
		*/
		regs->orig_ax = (long) (s32) value;
		break;

		case offsetof(struct user32, regs.eflags):
		return set_flags(child, value);

arch/x86/kernel/signal_64.c

+33 −5

Original line number	Diff line number	Diff line
		@@ -310,6 +310,35 @@ static int setup_rt_frame(int sig, struct k_sigaction ka, siginfo_t info,
		return -EFAULT;
		}

		/*
		* Return -1L or the syscall number that @regs is executing.
		*/
		static long current_syscall(struct pt_regs *regs)
		{
		/*
		* We always sign-extend a -1 value being set here,
		* so this is always either -1L or a syscall number.
		*/
		return regs->orig_ax;
		}

		/*
		* Return a value that is -EFOO if the system call in @regs->orig_ax
		* returned an error. This only works for @regs from @current.
		*/
		static long current_syscall_ret(struct pt_regs *regs)
		{
		#ifdef CONFIG_IA32_EMULATION
		if (test_thread_flag(TIF_IA32))
		/*
		* Sign-extend the value so (int)-EFOO becomes (long)-EFOO
		* and will match correctly in comparisons.
		*/
		return (int) regs->ax;
		#endif
		return regs->ax;
		}

		/*
		* OK, we're invoking a handler
		*/
		@@ -327,9 +356,9 @@ handle_signal(unsigned long sig, siginfo_t info, struct k_sigaction ka,
		#endif

		/* Are we from a system call? */
		if ((long)regs->orig_ax >= 0) {
		if (current_syscall(regs) >= 0) {
		/* If so, check system call restarting.. */
		switch (regs->ax) {
		switch (current_syscall_ret(regs)) {
		case -ERESTART_RESTARTBLOCK:
		case -ERESTARTNOHAND:
		regs->ax = -EINTR;
		@@ -426,10 +455,9 @@ static void do_signal(struct pt_regs *regs)
		}

		/* Did we come from a system call? */
		if ((long)regs->orig_ax >= 0) {
		if (current_syscall(regs) >= 0) {
		/* Restart the system call - no handlers present */
		long res = regs->ax;
		switch (res) {
		switch (current_syscall_ret(regs)) {
		case -ERESTARTNOHAND:
		case -ERESTARTSYS:
		case -ERESTARTNOINTR:

arch/x86/mm/ioremap.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -134,8 +134,6 @@ static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
		return NULL;
		}

		WARN_ON_ONCE(page_is_ram(pfn));

		switch (mode) {
		case IOR_MODE_UNCACHED:
		default:

arch/x86/mm/pgtable_32.c

+9 −9

Original line number	Diff line number	Diff line
		@@ -342,12 +342,16 @@ static void pgd_mop_up_pmds(struct mm_struct mm, pgd_t pgdp)

		pgd_t pgd_alloc(struct mm_struct mm)
		{
		pgd_t *pgd = quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
		pgd_t pgd = (pgd_t )__get_free_page(GFP_KERNEL \| __GFP_ZERO);

		mm->pgd = pgd; /* so that alloc_pd can use it */
		/* so that alloc_pd can use it */
		mm->pgd = pgd;
		if (pgd)
		pgd_ctor(pgd);

		if (pgd && !pgd_prepopulate_pmd(mm, pgd)) {
		quicklist_free(0, pgd_dtor, pgd);
		pgd_dtor(pgd);
		free_page((unsigned long)pgd);
		pgd = NULL;
		}

		@@ -357,12 +361,8 @@ pgd_t pgd_alloc(struct mm_struct mm)
		void pgd_free(struct mm_struct mm, pgd_t pgd)
		{
		pgd_mop_up_pmds(mm, pgd);
		quicklist_free(0, pgd_dtor, pgd);
		}

		void check_pgt_cache(void)
		{
		quicklist_trim(0, pgd_dtor, 25, 16);
		pgd_dtor(pgd);
		free_page((unsigned long)pgd);
		}

		void __pte_free_tlb(struct mmu_gather tlb, struct page pte)