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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

Browse source 
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix file and descriptor handling in perfmon
  [IA64] TS_RESTORE_SIGMASK
  [IA64] smp.c coding style fix
  [IA64] fix section mismatch in arch/ia64/kernel/topology.c
  [IA64] fix section mismatch in arch/ia64/kernel/palinfo.c
  [IA64] fix section mismatch in arch/ia64/kernel/irq.c
  [IA64] fix section mismatch in arch/ia64/kernel/acpi.c
This commit is contained in:
Linus Torvalds 2008-05-02 08:17:58 -07:00
commit 8bec4a5d93
11 changed files with 156 additions and 170 deletions
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2
arch/ia64/ia32/ia32_signal.c
View file

@ -463,7 +463,7 @@ sys32_sigsuspend (int history0, int history1, old_sigset_t mask)
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
set_restore_sigmask();
return -ERESTARTNOHAND;
}

2
arch/ia64/kernel/acpi.c
View file

@ -966,7 +966,7 @@ acpi_map_iosapics (void)
fs_initcall(acpi_map_iosapics);
#endif /* CONFIG_ACPI_NUMA */
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
int __ref acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
int err;

4
arch/ia64/kernel/irq.c
View file

@ -183,10 +183,10 @@ void fixup_irqs(void)
{
unsigned int irq;
extern void ia64_process_pending_intr(void);
extern void ia64_disable_timer(void);
extern volatile int time_keeper_id;
ia64_disable_timer();
/* Mask ITV to disable timer */
ia64_set_itv(1 << 16);
/*
* Find a new timesync master

2
arch/ia64/kernel/palinfo.c
View file

@ -1053,7 +1053,7 @@ static int __cpuinit palinfo_cpu_callback(struct notifier_block *nfb,
return NOTIFY_OK;
}
static struct notifier_block palinfo_cpu_notifier __cpuinitdata =
static struct notifier_block __refdata palinfo_cpu_notifier =
{
.notifier_call = palinfo_cpu_callback,
.priority = 0,

199
arch/ia64/kernel/perfmon.c
View file

@ -867,7 +867,7 @@ pfm_rvfree(void *mem, unsigned long size)
}
static pfm_context_t *
pfm_context_alloc(void)
pfm_context_alloc(int ctx_flags)
{
pfm_context_t *ctx;
@ -878,6 +878,46 @@ pfm_context_alloc(void)
ctx = kzalloc(sizeof(pfm_context_t), GFP_KERNEL);
if (ctx) {
DPRINT(("alloc ctx @%p\n", ctx));
/*
* init context protection lock
*/
spin_lock_init(&ctx->ctx_lock);
/*
* context is unloaded
*/
ctx->ctx_state = PFM_CTX_UNLOADED;
/*
* initialization of context's flags
*/
ctx->ctx_fl_block = (ctx_flags & PFM_FL_NOTIFY_BLOCK) ? 1 : 0;
ctx->ctx_fl_system = (ctx_flags & PFM_FL_SYSTEM_WIDE) ? 1: 0;
ctx->ctx_fl_no_msg = (ctx_flags & PFM_FL_OVFL_NO_MSG) ? 1: 0;
/*
* will move to set properties
* ctx->ctx_fl_excl_idle = (ctx_flags & PFM_FL_EXCL_IDLE) ? 1: 0;
*/
/*
* init restart semaphore to locked
*/
init_completion(&ctx->ctx_restart_done);
/*
* activation is used in SMP only
*/
ctx->ctx_last_activation = PFM_INVALID_ACTIVATION;
SET_LAST_CPU(ctx, -1);
/*
* initialize notification message queue
*/
ctx->ctx_msgq_head = ctx->ctx_msgq_tail = 0;
init_waitqueue_head(&ctx->ctx_msgq_wait);
init_waitqueue_head(&ctx->ctx_zombieq);
}
return ctx;
}
@ -2165,28 +2205,21 @@ static struct dentry_operations pfmfs_dentry_operations = {
};
static int
pfm_alloc_fd(struct file **cfile)
static struct file *
pfm_alloc_file(pfm_context_t *ctx)
{
int fd, ret = 0;
struct file *file = NULL;
struct inode * inode;
struct file *file;
struct inode *inode;
struct dentry *dentry;
char name[32];
struct qstr this;
fd = get_unused_fd();
if (fd < 0) return -ENFILE;
ret = -ENFILE;
file = get_empty_filp();
if (!file) goto out;
/*
* allocate a new inode
*/
inode = new_inode(pfmfs_mnt->mnt_sb);
if (!inode) goto out;
if (!inode)
return ERR_PTR(-ENOMEM);
DPRINT(("new inode ino=%ld @%p\n", inode->i_ino, inode));
@ -2199,59 +2232,28 @@ pfm_alloc_fd(struct file **cfile)
this.len = strlen(name);
this.hash = inode->i_ino;
ret = -ENOMEM;
/*
* allocate a new dcache entry
*/
file->f_path.dentry = d_alloc(pfmfs_mnt->mnt_sb->s_root, &this);
if (!file->f_path.dentry) goto out;
dentry = d_alloc(pfmfs_mnt->mnt_sb->s_root, &this);
if (!dentry) {
iput(inode);
return ERR_PTR(-ENOMEM);
}
file->f_path.dentry->d_op = &pfmfs_dentry_operations;
dentry->d_op = &pfmfs_dentry_operations;
d_add(dentry, inode);
d_add(file->f_path.dentry, inode);
file->f_path.mnt = mntget(pfmfs_mnt);
file->f_mapping = inode->i_mapping;
file = alloc_file(pfmfs_mnt, dentry, FMODE_READ, &pfm_file_ops);
if (!file) {
dput(dentry);
return ERR_PTR(-ENFILE);
}
file->f_op = &pfm_file_ops;
file->f_mode = FMODE_READ;
file->f_flags = O_RDONLY;
file->f_pos = 0;
file->private_data = ctx;
/*
* may have to delay until context is attached?
*/
fd_install(fd, file);
/*
* the file structure we will use
*/
*cfile = file;
return fd;
out:
if (file) put_filp(file);
put_unused_fd(fd);
return ret;
}
static void
pfm_free_fd(int fd, struct file *file)
{
struct files_struct *files = current->files;
struct fdtable *fdt;
/*
* there ie no fd_uninstall(), so we do it here
*/
spin_lock(&files->file_lock);
fdt = files_fdtable(files);
rcu_assign_pointer(fdt->fd[fd], NULL);
spin_unlock(&files->file_lock);
if (file)
put_filp(file);
put_unused_fd(fd);
return file;
}
static int
@ -2475,6 +2477,7 @@ pfm_setup_buffer_fmt(struct task_struct *task, struct file *filp, pfm_context_t
/* link buffer format and context */
ctx->ctx_buf_fmt = fmt;
ctx->ctx_fl_is_sampling = 1; /* assume record() is defined */
/*
* check if buffer format wants to use perfmon buffer allocation/mapping service
@ -2669,78 +2672,45 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
{
pfarg_context_t *req = (pfarg_context_t *)arg;
struct file *filp;
struct path path;
int ctx_flags;
int fd;
int ret;
/* let's check the arguments first */
ret = pfarg_is_sane(current, req);
if (ret < 0) return ret;
if (ret < 0)
return ret;
ctx_flags = req->ctx_flags;
ret = -ENOMEM;
ctx = pfm_context_alloc();
if (!ctx) goto error;
fd = get_unused_fd();
if (fd < 0)
return fd;
ret = pfm_alloc_fd(&filp);
if (ret < 0) goto error_file;
ctx = pfm_context_alloc(ctx_flags);
if (!ctx)
goto error;
req->ctx_fd = ctx->ctx_fd = ret;
filp = pfm_alloc_file(ctx);
if (IS_ERR(filp)) {
ret = PTR_ERR(filp);
goto error_file;
}
/*
* attach context to file
*/
filp->private_data = ctx;
req->ctx_fd = ctx->ctx_fd = fd;
/*
* does the user want to sample?
*/
if (pfm_uuid_cmp(req->ctx_smpl_buf_id, pfm_null_uuid)) {
ret = pfm_setup_buffer_fmt(current, filp, ctx, ctx_flags, 0, req);
if (ret) goto buffer_error;
if (ret)
goto buffer_error;
}
/*
* init context protection lock
*/
spin_lock_init(&ctx->ctx_lock);
/*
* context is unloaded
*/
ctx->ctx_state = PFM_CTX_UNLOADED;
/*
* initialization of context's flags
*/
ctx->ctx_fl_block = (ctx_flags & PFM_FL_NOTIFY_BLOCK) ? 1 : 0;
ctx->ctx_fl_system = (ctx_flags & PFM_FL_SYSTEM_WIDE) ? 1: 0;
ctx->ctx_fl_is_sampling = ctx->ctx_buf_fmt ? 1 : 0; /* assume record() is defined */
ctx->ctx_fl_no_msg = (ctx_flags & PFM_FL_OVFL_NO_MSG) ? 1: 0;
/*
* will move to set properties
* ctx->ctx_fl_excl_idle = (ctx_flags & PFM_FL_EXCL_IDLE) ? 1: 0;
*/
/*
* init restart semaphore to locked
*/
init_completion(&ctx->ctx_restart_done);
/*
* activation is used in SMP only
*/
ctx->ctx_last_activation = PFM_INVALID_ACTIVATION;
SET_LAST_CPU(ctx, -1);
/*
* initialize notification message queue
*/
ctx->ctx_msgq_head = ctx->ctx_msgq_tail = 0;
init_waitqueue_head(&ctx->ctx_msgq_wait);
init_waitqueue_head(&ctx->ctx_zombieq);
DPRINT(("ctx=%p flags=0x%x system=%d notify_block=%d excl_idle=%d no_msg=%d ctx_fd=%d \n",
ctx,
ctx_flags,
@ -2755,10 +2725,14 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
*/
pfm_reset_pmu_state(ctx);
fd_install(fd, filp);
return 0;
buffer_error:
pfm_free_fd(ctx->ctx_fd, filp);
path = filp->f_path;
put_filp(filp);
path_put(&path);
if (ctx->ctx_buf_fmt) {
pfm_buf_fmt_exit(ctx->ctx_buf_fmt, current, NULL, regs);
@ -2767,6 +2741,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
pfm_context_free(ctx);
error:
put_unused_fd(fd);
return ret;
}

15
arch/ia64/kernel/signal.c
View file

@ -464,7 +464,7 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
if (!user_mode(&scr->pt))
return;
if (test_thread_flag(TIF_RESTORE_SIGMASK))
if (current_thread_info()->status & TS_RESTORE_SIGMASK)
oldset = &current->saved_sigmask;
else
oldset = &current->blocked;
@ -530,12 +530,13 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
* continue to iterate in this loop so we can deliver the SIGSEGV...
*/
if (handle_signal(signr, &ka, &info, oldset, scr)) {
/* a signal was successfully delivered; the saved
/*
* A signal was successfully delivered; the saved
* sigmask will have been stored in the signal frame,
* and will be restored by sigreturn, so we can simply
* clear the TIF_RESTORE_SIGMASK flag */
if (test_thread_flag(TIF_RESTORE_SIGMASK))
clear_thread_flag(TIF_RESTORE_SIGMASK);
* clear the TS_RESTORE_SIGMASK flag.
*/
current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
return;
}
}
@ -566,8 +567,8 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
/* if there's no signal to deliver, we just put the saved sigmask
* back */
if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
clear_thread_flag(TIF_RESTORE_SIGMASK);
if (current_thread_info()->status & TS_RESTORE_SIGMASK) {
current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
}
}

66
arch/ia64/kernel/smp.c
View file

@ -98,8 +98,33 @@ unlock_ipi_calllock(void)
spin_unlock_irq(&call_lock);
}
static inline void
handle_call_data(void)
{
struct call_data_struct *data;
void (*func)(void *info);
void *info;
int wait;
/* release the 'pointer lock' */
data = (struct call_data_struct *)call_data;
func = data->func;
info = data->info;
wait = data->wait;
mb();
atomic_inc(&data->started);
/* At this point the structure may be gone unless wait is true. */
(*func)(info);
/* Notify the sending CPU that the task is done. */
mb();
if (wait)
atomic_inc(&data->finished);
}
static void
stop_this_cpu (void)
stop_this_cpu(void)
{
/*
* Remove this CPU:
@ -138,44 +163,21 @@ handle_IPI (int irq, void *dev_id)
ops &= ~(1 << which);
switch (which) {
case IPI_CALL_FUNC:
{
struct call_data_struct *data;
void (*func)(void *info);
void *info;
int wait;
case IPI_CALL_FUNC:
handle_call_data();
break;
/* release the 'pointer lock' */
data = (struct call_data_struct *) call_data;
func = data->func;
info = data->info;
wait = data->wait;
mb();
atomic_inc(&data->started);
/*
* At this point the structure may be gone unless
* wait is true.
*/
(*func)(info);
/* Notify the sending CPU that the task is done. */
mb();
if (wait)
atomic_inc(&data->finished);
}
break;
case IPI_CPU_STOP:
case IPI_CPU_STOP:
stop_this_cpu();
break;
#ifdef CONFIG_KEXEC
case IPI_KDUMP_CPU_STOP:
case IPI_KDUMP_CPU_STOP:
unw_init_running(kdump_cpu_freeze, NULL);
break;
#endif
default:
printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n", this_cpu, which);
default:
printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n",
this_cpu, which);
break;
}
} while (ops);

5
arch/ia64/kernel/time.c
View file

@ -379,11 +379,6 @@ static struct irqaction timer_irqaction = {
.name = "timer"
};
void __devinit ia64_disable_timer(void)
{
ia64_set_itv(1 << 16);
}
void __init
time_init (void)
{

16
arch/ia64/kernel/topology.c
View file

@ -36,9 +36,11 @@ void arch_fix_phys_package_id(int num, u32 slot)
}
EXPORT_SYMBOL_GPL(arch_fix_phys_package_id);
int arch_register_cpu(int num)
#ifdef CONFIG_HOTPLUG_CPU
int __ref arch_register_cpu(int num)
{
#if defined (CONFIG_ACPI) && defined (CONFIG_HOTPLUG_CPU)
#ifdef CONFIG_ACPI
/*
* If CPEI can be re-targetted or if this is not
* CPEI target, then it is hotpluggable
@ -47,19 +49,21 @@ int arch_register_cpu(int num)
sysfs_cpus[num].cpu.hotpluggable = 1;
map_cpu_to_node(num, node_cpuid[num].nid);
#endif
return register_cpu(&sysfs_cpus[num].cpu, num);
}
#ifdef CONFIG_HOTPLUG_CPU
EXPORT_SYMBOL(arch_register_cpu);
void arch_unregister_cpu(int num)
{
unregister_cpu(&sysfs_cpus[num].cpu);
unmap_cpu_from_node(num, cpu_to_node(num));
}
EXPORT_SYMBOL(arch_register_cpu);
EXPORT_SYMBOL(arch_unregister_cpu);
#else
static int __init arch_register_cpu(int num)
{
return register_cpu(&sysfs_cpus[num].cpu, num);
}
#endif /*CONFIG_HOTPLUG_CPU*/

2
include/asm-ia64/cpu.h
View file

@ -14,8 +14,8 @@ DECLARE_PER_CPU(struct ia64_cpu, cpu_devices);
DECLARE_PER_CPU(int, cpu_state);
extern int arch_register_cpu(int num);
#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
#endif

13
include/asm-ia64/thread_info.h
View file

@ -108,13 +108,11 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
#define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */
#define TIF_FREEZE 20 /* is freezing for suspend */
#define TIF_RESTORE_RSE 21 /* user RBS is newer than kernel RBS */
#define TIF_RESTORE_SIGMASK 22 /* restore signal mask in do_signal() */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
@ -131,7 +129,18 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))
#define TS_POLLING 1 /* true if in idle loop and not sleeping */
#define TS_RESTORE_SIGMASK 2 /* restore signal mask in do_signal() */
#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
#ifndef __ASSEMBLY__
#define HAVE_SET_RESTORE_SIGMASK 1
static inline void set_restore_sigmask(void)
{
struct thread_info *ti = current_thread_info();
ti->status |= TS_RESTORE_SIGMASK;
set_bit(TIF_SIGPENDING, &ti->flags);
}
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_THREAD_INFO_H */