Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

8 files changed, 44 insertions, 188 deletions

diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index a94e7ea3faa6..d9ed5a15c547 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -468,7 +468,7 @@ ENTRY(sys_call_table)
         .long sys_settimeofday
         .long sys_getgroups16   /* 80 */
         .long sys_setgroups16
-        .long old_select
+        .long sys_old_select
         .long sys_symlink
         .long sys_lstat
         .long sys_readlink      /* 85 */
@@ -578,7 +578,7 @@ ENTRY(sys_call_table)
         .long sys_ni_syscall    /* reserved for streams2 */
         .long sys_vfork         /* 190 */
         .long sys_getrlimit
-        .long sys_mmap2
+        .long sys_mmap_pgoff
         .long sys_truncate64
         .long sys_ftruncate64
         .long sys_stat64        /* 195 */
@@ -724,6 +724,7 @@ ENTRY(sys_call_table)
         .long sys_pwritev               /* 335 */
         .long sys_rt_tgsigqueueinfo
         .long sys_perf_event_open
+        .long sys_recvmmsg
 
 
 nr_syscalls=(.-sys_call_table)/4
diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c
index 4c3c58ef5cda..e2d5ed891f37 100644
--- a/arch/mn10300/kernel/irq.c
+++ b/arch/mn10300/kernel/irq.c
@@ -215,7 +215,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
                 /* display information rows, one per active CPU */
         case 1 ... NR_IRQS - 1:
-                spin_lock_irqsave(&irq_desc[i].lock, flags);
+                raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
 
                 action = irq_desc[i].action;
                 if (action) {
@@ -235,7 +235,7 @@ int show_interrupts(struct seq_file *p, void *v)
                         seq_putc(p, '\n');
                 }
 
-                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+                raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
                 break;
 
                 /* polish off with NMI and error counters */
diff --git a/arch/mn10300/kernel/kprobes.c b/arch/mn10300/kernel/kprobes.c
index dacafab00eb2..67e6389d625a 100644
--- a/arch/mn10300/kernel/kprobes.c
+++ b/arch/mn10300/kernel/kprobes.c
@@ -31,13 +31,13 @@ const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
 #define KPROBE_HIT_ACTIVE       0x00000001
 #define KPROBE_HIT_SS           0x00000002
 
-static struct kprobe *current_kprobe;
-static unsigned long current_kprobe_orig_pc;
-static unsigned long current_kprobe_next_pc;
-static int current_kprobe_ss_flags;
+static struct kprobe *cur_kprobe;
+static unsigned long cur_kprobe_orig_pc;
+static unsigned long cur_kprobe_next_pc;
+static int cur_kprobe_ss_flags;
 static unsigned long kprobe_status;
-static kprobe_opcode_t current_kprobe_ss_buf[MAX_INSN_SIZE + 2];
-static unsigned long current_kprobe_bp_addr;
+static kprobe_opcode_t cur_kprobe_ss_buf[MAX_INSN_SIZE + 2];
+static unsigned long cur_kprobe_bp_addr;
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 
@@ -399,26 +399,25 @@ void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
         unsigned long nextpc;
 
-        current_kprobe_orig_pc = regs->pc;
-        memcpy(current_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE);
-        regs->pc = (unsigned long) current_kprobe_ss_buf;
+        cur_kprobe_orig_pc = regs->pc;
+        memcpy(cur_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE);
+        regs->pc = (unsigned long) cur_kprobe_ss_buf;
 
-        nextpc = find_nextpc(regs, &current_kprobe_ss_flags);
-        if (current_kprobe_ss_flags & SINGLESTEP_PCREL)
-                current_kprobe_next_pc =
-                        current_kprobe_orig_pc + (nextpc - regs->pc);
+        nextpc = find_nextpc(regs, &cur_kprobe_ss_flags);
+        if (cur_kprobe_ss_flags & SINGLESTEP_PCREL)
+                cur_kprobe_next_pc = cur_kprobe_orig_pc + (nextpc - regs->pc);
         else
-                current_kprobe_next_pc = nextpc;
+                cur_kprobe_next_pc = nextpc;
 
         /* branching instructions need special handling */
-        if (current_kprobe_ss_flags & SINGLESTEP_BRANCH)
+        if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH)
                 nextpc = singlestep_branch_setup(regs);
 
-        current_kprobe_bp_addr = nextpc;
+        cur_kprobe_bp_addr = nextpc;
 
         *(u8 *) nextpc = BREAKPOINT_INSTRUCTION;
-        mn10300_dcache_flush_range2((unsigned) current_kprobe_ss_buf,
-                                    sizeof(current_kprobe_ss_buf));
+        mn10300_dcache_flush_range2((unsigned) cur_kprobe_ss_buf,
+                                    sizeof(cur_kprobe_ss_buf));
         mn10300_icache_inv();
 }
 
@@ -440,7 +439,7 @@ static inline int __kprobes kprobe_handler(struct pt_regs *regs)
                         disarm_kprobe(p, regs);
                         ret = 1;
                 } else {
-                        p = current_kprobe;
+                        p = cur_kprobe;
                         if (p->break_handler && p->break_handler(p, regs))
                                 goto ss_probe;
                 }
@@ -464,7 +463,7 @@ static inline int __kprobes kprobe_handler(struct pt_regs *regs)
         }
 
         kprobe_status = KPROBE_HIT_ACTIVE;
-        current_kprobe = p;
+        cur_kprobe = p;
         if (p->pre_handler(p, regs)) {
                 /* handler has already set things up, so skip ss setup */
                 return 1;
@@ -491,8 +490,8 @@ no_kprobe:
 static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
 {
         /* we may need to fixup regs/stack after singlestepping a call insn */
-        if (current_kprobe_ss_flags & SINGLESTEP_BRANCH) {
-                regs->pc = current_kprobe_orig_pc;
+        if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) {
+                regs->pc = cur_kprobe_orig_pc;
                 switch (p->ainsn.insn[0]) {
                 case 0xcd:      /* CALL (d16,PC) */
                         *(unsigned *) regs->sp = regs->mdr = regs->pc + 5;
@@ -523,8 +522,8 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
                 }
         }
 
-        regs->pc = current_kprobe_next_pc;
-        current_kprobe_bp_addr = 0;
+        regs->pc = cur_kprobe_next_pc;
+        cur_kprobe_bp_addr = 0;
 }
 
 static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
@@ -532,10 +531,10 @@ static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
         if (!kprobe_running())
                 return 0;
 
-        if (current_kprobe->post_handler)
-                current_kprobe->post_handler(current_kprobe, regs, 0);
+        if (cur_kprobe->post_handler)
+                cur_kprobe->post_handler(cur_kprobe, regs, 0);
 
-        resume_execution(current_kprobe, regs);
+        resume_execution(cur_kprobe, regs);
         reset_current_kprobe();
         preempt_enable_no_resched();
         return 1;
@@ -545,12 +544,12 @@ static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
 static inline
 int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 {
-        if (current_kprobe->fault_handler &&
-            current_kprobe->fault_handler(current_kprobe, regs, trapnr))
+        if (cur_kprobe->fault_handler &&
+            cur_kprobe->fault_handler(cur_kprobe, regs, trapnr))
                 return 1;
 
         if (kprobe_status & KPROBE_HIT_SS) {
-                resume_execution(current_kprobe, regs);
+                resume_execution(cur_kprobe, regs);
                 reset_current_kprobe();
                 preempt_enable_no_resched();
         }
@@ -567,7 +566,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 
         switch (val) {
         case DIE_BREAKPOINT:
-                if (current_kprobe_bp_addr != args->regs->pc) {
+                if (cur_kprobe_bp_addr != args->regs->pc) {
                         if (kprobe_handler(args->regs))
                                 return NOTIFY_STOP;
                 } else {
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index 229b710fc5d5..ef34d5a0f8bd 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -380,7 +380,8 @@ static int mask_test_and_clear(volatile u8 *ptr, u8 mask)
         u32 epsw;
         asm volatile("  bclr    %1,(%2)         \n"
                      "  mov     epsw,%0         \n"
-                     : "=d"(epsw) : "d"(mask), "a"(ptr));
+                     : "=d"(epsw) : "d"(mask), "a"(ptr)
+                     : "cc", "memory");
         return !(epsw & EPSW_FLAG_Z);
 }
 
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 892cce82867e..82b817c7f7b6 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -18,7 +18,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
@@ -26,6 +25,7 @@
 #include <linux/percpu.h>
 #include <linux/err.h>
 #include <linux/fs.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -275,16 +275,12 @@ asmlinkage long sys_execve(char __user *name,
         char *filename;
         int error;
 
-        lock_kernel();
-
         filename = getname(name);
         error = PTR_ERR(filename);
-        if (!IS_ERR(filename)) {
-                error = do_execve(filename, argv, envp, __frame);
-                putname(filename);
-        }
-
-        unlock_kernel();
+        if (IS_ERR(filename))
+                return error;
+        error = do_execve(filename, argv, envp, __frame);
+        putname(filename);
         return error;
 }
 
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index 3f24c298a3af..d464affcba0e 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -15,7 +15,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/tty.h>
 #include <linux/ioport.h>
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index a21f43bc68e2..717db14c2cc3 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -264,7 +264,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka,
 
         /* this is the X/Open sanctioned signal stack switching.  */
         if (ka->sa.sa_flags & SA_ONSTACK) {
-                if (!on_sig_stack(sp))
+                if (sas_ss_flags(sp) == 0)
                         sp = current->sas_ss_sp + current->sas_ss_size;
         }
 
diff --git a/arch/mn10300/kernel/sys_mn10300.c b/arch/mn10300/kernel/sys_mn10300.c
index 8ca5af00334c..815f1355fad4 100644
--- a/arch/mn10300/kernel/sys_mn10300.c
+++ b/arch/mn10300/kernel/sys_mn10300.c
@@ -23,151 +23,11 @@
 
 #include <asm/uaccess.h>
 
-#define MIN_MAP_ADDR    PAGE_SIZE       /* minimum fixed mmap address */
-
-/*
- * memory mapping syscall
- */
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-                          unsigned long prot, unsigned long flags,
-                          unsigned long fd, unsigned long pgoff)
-{
-        struct file *file = NULL;
-        long error = -EINVAL;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-        if (flags & MAP_FIXED && addr < MIN_MAP_ADDR)
-                goto out;
-
-        error = -EBADF;
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        goto out;
-        }
-
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&current->mm->mmap_sem);
-
-        if (file)
-                fput(file);
-out:
-        return error;
-}
-
 asmlinkage long old_mmap(unsigned long addr, unsigned long len,
                          unsigned long prot, unsigned long flags,
                          unsigned long fd, unsigned long offset)
 {
         if (offset & ~PAGE_MASK)
                 return -EINVAL;
-        return sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-}
-
-struct sel_arg_struct {
-        unsigned long n;
-        fd_set *inp;
-        fd_set *outp;
-        fd_set *exp;
-        struct timeval *tvp;
-};
-
-asmlinkage int old_select(struct sel_arg_struct __user *arg)
-{
-        struct sel_arg_struct a;
-
-        if (copy_from_user(&a, arg, sizeof(a)))
-                return -EFAULT;
-        /* sys_select() does the appropriate kernel locking */
-        return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage long sys_ipc(uint call, int first, int second,
-                        int third, void __user *ptr, long fifth)
-{
-        int version, ret;
-
-        version = call >> 16; /* hack for backward compatibility */
-        call &= 0xffff;
-
-        switch (call) {
-        case SEMOP:
-                return sys_semtimedop(first, (struct sembuf __user *)ptr,
-                                      second, NULL);
-        case SEMTIMEDOP:
-                return sys_semtimedop(first, (struct sembuf __user *)ptr,
-                                      second,
-                                      (const struct timespec __user *)fifth);
-        case SEMGET:
-                return sys_semget(first, second, third);
-        case SEMCTL: {
-                union semun fourth;
-                if (!ptr)
-                        return -EINVAL;
-                if (get_user(fourth.__pad, (void __user * __user *) ptr))
-                        return -EFAULT;
-                return sys_semctl(first, second, third, fourth);
-        }
-
-        case MSGSND:
-                return sys_msgsnd(first, (struct msgbuf __user *) ptr,
-                                  second, third);
-        case MSGRCV:
-                switch (version) {
-                case 0: {
-                        struct ipc_kludge tmp;
-                        if (!ptr)
-                                return -EINVAL;
-
-                        if (copy_from_user(&tmp,
-                                           (struct ipc_kludge __user *) ptr,
-                                           sizeof(tmp)))
-                                return -EFAULT;
-                        return sys_msgrcv(first, tmp.msgp, second,
-                                          tmp.msgtyp, third);
-                }
-                default:
-                        return sys_msgrcv(first,
-                                          (struct msgbuf __user *) ptr,
-                                           second, fifth, third);
-                }
-        case MSGGET:
-                return sys_msgget((key_t) first, second);
-        case MSGCTL:
-                return sys_msgctl(first, second,
-                                   (struct msqid_ds __user *) ptr);
-
-        case SHMAT:
-                switch (version) {
-                default: {
-                        ulong raddr;
-                        ret = do_shmat(first, (char __user *) ptr, second,
-                                       &raddr);
-                        if (ret)
-                                return ret;
-                        return put_user(raddr, (ulong *) third);
-                }
-                case 1: /* iBCS2 emulator entry point */
-                        if (!segment_eq(get_fs(), get_ds()))
-                                return -EINVAL;
-                        return do_shmat(first, (char __user *) ptr, second,
-                                        (ulong *) third);
-                }
-        case SHMDT:
-                return sys_shmdt((char __user *)ptr);
-        case SHMGET:
-                return sys_shmget(first, second, third);
-        case SHMCTL:
-                return sys_shmctl(first, second,
-                                  (struct shmid_ds __user *) ptr);
-        default:
-                return -EINVAL;
-        }
+        return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
 }