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-rw-r--r--arch/sparc64/kernel/asm-offsets.c1
-rw-r--r--arch/sparc64/kernel/process.c5
-rw-r--r--arch/sparc64/kernel/sparc64_ksyms.c5
-rw-r--r--arch/sparc64/lib/Makefile1
-rw-r--r--arch/sparc64/lib/debuglocks.c366
-rw-r--r--arch/sparc64/solaris/ioctl.c15
-rw-r--r--arch/sparc64/solaris/timod.c29
7 files changed, 32 insertions, 390 deletions
diff --git a/arch/sparc64/kernel/asm-offsets.c b/arch/sparc64/kernel/asm-offsets.c
new file mode 100644
index 00000000000..9e263112a6e
--- /dev/null
+++ b/arch/sparc64/kernel/asm-offsets.c
@@ -0,0 +1 @@
+/* Dummy asm-offsets.c file. Required by kbuild and ready to be used - hint! */
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 66255434128..7d10b039709 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -607,11 +607,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
struct thread_info *t = p->thread_info;
char *child_trap_frame;
-#ifdef CONFIG_DEBUG_SPINLOCK
- p->thread.smp_lock_count = 0;
- p->thread.smp_lock_pc = 0;
-#endif
-
/* Calculate offset to stack_frame & pt_regs */
child_trap_frame = ((char *)t) + (THREAD_SIZE - (TRACEREG_SZ+STACKFRAME_SZ));
memcpy(child_trap_frame, (((struct sparc_stackf *)regs)-1), (TRACEREG_SZ+STACKFRAME_SZ));
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 7d9a0f6c437..cbb5e59824e 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -115,17 +115,12 @@ EXPORT_PER_CPU_SYMBOL(__cpu_data);
/* used by various drivers */
#ifdef CONFIG_SMP
-#ifndef CONFIG_DEBUG_SPINLOCK
/* Out of line rw-locking implementation. */
EXPORT_SYMBOL(__read_lock);
EXPORT_SYMBOL(__read_unlock);
EXPORT_SYMBOL(__write_lock);
EXPORT_SYMBOL(__write_unlock);
EXPORT_SYMBOL(__write_trylock);
-/* Out of line spin-locking implementation. */
-EXPORT_SYMBOL(_raw_spin_lock);
-EXPORT_SYMBOL(_raw_spin_lock_flags);
-#endif
/* Hard IRQ locking */
EXPORT_SYMBOL(synchronize_irq);
diff --git a/arch/sparc64/lib/Makefile b/arch/sparc64/lib/Makefile
index 40dbeec7e5d..d968aebe83b 100644
--- a/arch/sparc64/lib/Makefile
+++ b/arch/sparc64/lib/Makefile
@@ -14,7 +14,6 @@ lib-y := PeeCeeI.o copy_page.o clear_page.o strlen.o strncmp.o \
copy_in_user.o user_fixup.o memmove.o \
mcount.o ipcsum.o rwsem.o xor.o find_bit.o delay.o
-lib-$(CONFIG_DEBUG_SPINLOCK) += debuglocks.o
lib-$(CONFIG_HAVE_DEC_LOCK) += dec_and_lock.o
obj-y += iomap.o
diff --git a/arch/sparc64/lib/debuglocks.c b/arch/sparc64/lib/debuglocks.c
deleted file mode 100644
index f5f0b5586f0..00000000000
--- a/arch/sparc64/lib/debuglocks.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/* $Id: debuglocks.c,v 1.9 2001/11/17 00:10:48 davem Exp $
- * debuglocks.c: Debugging versions of SMP locking primitives.
- *
- * Copyright (C) 1998 David S. Miller (davem@redhat.com)
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <asm/system.h>
-
-#ifdef CONFIG_SMP
-
-static inline void show (char *str, spinlock_t *lock, unsigned long caller)
-{
- int cpu = smp_processor_id();
-
- printk("%s(%p) CPU#%d stuck at %08x, owner PC(%08x):CPU(%x)\n",
- str, lock, cpu, (unsigned int) caller,
- lock->owner_pc, lock->owner_cpu);
-}
-
-static inline void show_read (char *str, rwlock_t *lock, unsigned long caller)
-{
- int cpu = smp_processor_id();
-
- printk("%s(%p) CPU#%d stuck at %08x, writer PC(%08x):CPU(%x)\n",
- str, lock, cpu, (unsigned int) caller,
- lock->writer_pc, lock->writer_cpu);
-}
-
-static inline void show_write (char *str, rwlock_t *lock, unsigned long caller)
-{
- int cpu = smp_processor_id();
- int i;
-
- printk("%s(%p) CPU#%d stuck at %08x\n",
- str, lock, cpu, (unsigned int) caller);
- printk("Writer: PC(%08x):CPU(%x)\n",
- lock->writer_pc, lock->writer_cpu);
- printk("Readers:");
- for (i = 0; i < NR_CPUS; i++)
- if (lock->reader_pc[i])
- printk(" %d[%08x]", i, lock->reader_pc[i]);
- printk("\n");
-}
-
-#undef INIT_STUCK
-#define INIT_STUCK 100000000
-
-void _do_spin_lock(spinlock_t *lock, char *str, unsigned long caller)
-{
- unsigned long val;
- int stuck = INIT_STUCK;
- int cpu = get_cpu();
- int shown = 0;
-
-again:
- __asm__ __volatile__("ldstub [%1], %0"
- : "=r" (val)
- : "r" (&(lock->lock))
- : "memory");
- membar_storeload_storestore();
- if (val) {
- while (lock->lock) {
- if (!--stuck) {
- if (shown++ <= 2)
- show(str, lock, caller);
- stuck = INIT_STUCK;
- }
- rmb();
- }
- goto again;
- }
- lock->owner_pc = ((unsigned int)caller);
- lock->owner_cpu = cpu;
- current->thread.smp_lock_count++;
- current->thread.smp_lock_pc = ((unsigned int)caller);
-
- put_cpu();
-}
-
-int _do_spin_trylock(spinlock_t *lock, unsigned long caller)
-{
- unsigned long val;
- int cpu = get_cpu();
-
- __asm__ __volatile__("ldstub [%1], %0"
- : "=r" (val)
- : "r" (&(lock->lock))
- : "memory");
- membar_storeload_storestore();
- if (!val) {
- lock->owner_pc = ((unsigned int)caller);
- lock->owner_cpu = cpu;
- current->thread.smp_lock_count++;
- current->thread.smp_lock_pc = ((unsigned int)caller);
- }
-
- put_cpu();
-
- return val == 0;
-}
-
-void _do_spin_unlock(spinlock_t *lock)
-{
- lock->owner_pc = 0;
- lock->owner_cpu = NO_PROC_ID;
- membar_storestore_loadstore();
- lock->lock = 0;
- current->thread.smp_lock_count--;
-}
-
-/* Keep INIT_STUCK the same... */
-
-void _do_read_lock(rwlock_t *rw, char *str, unsigned long caller)
-{
- unsigned long val;
- int stuck = INIT_STUCK;
- int cpu = get_cpu();
- int shown = 0;
-
-wlock_again:
- /* Wait for any writer to go away. */
- while (((long)(rw->lock)) < 0) {
- if (!--stuck) {
- if (shown++ <= 2)
- show_read(str, rw, caller);
- stuck = INIT_STUCK;
- }
- rmb();
- }
- /* Try once to increment the counter. */
- __asm__ __volatile__(
-" ldx [%0], %%g1\n"
-" brlz,a,pn %%g1, 2f\n"
-" mov 1, %0\n"
-" add %%g1, 1, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" sub %%g1, %%g7, %0\n"
-"2:" : "=r" (val)
- : "0" (&(rw->lock))
- : "g1", "g7", "memory");
- membar_storeload_storestore();
- if (val)
- goto wlock_again;
- rw->reader_pc[cpu] = ((unsigned int)caller);
- current->thread.smp_lock_count++;
- current->thread.smp_lock_pc = ((unsigned int)caller);
-
- put_cpu();
-}
-
-void _do_read_unlock(rwlock_t *rw, char *str, unsigned long caller)
-{
- unsigned long val;
- int stuck = INIT_STUCK;
- int cpu = get_cpu();
- int shown = 0;
-
- /* Drop our identity _first_. */
- rw->reader_pc[cpu] = 0;
- current->thread.smp_lock_count--;
-runlock_again:
- /* Spin trying to decrement the counter using casx. */
- __asm__ __volatile__(
-" membar #StoreLoad | #LoadLoad\n"
-" ldx [%0], %%g1\n"
-" sub %%g1, 1, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" membar #StoreLoad | #StoreStore\n"
-" sub %%g1, %%g7, %0\n"
- : "=r" (val)
- : "0" (&(rw->lock))
- : "g1", "g7", "memory");
- if (val) {
- if (!--stuck) {
- if (shown++ <= 2)
- show_read(str, rw, caller);
- stuck = INIT_STUCK;
- }
- goto runlock_again;
- }
-
- put_cpu();
-}
-
-void _do_write_lock(rwlock_t *rw, char *str, unsigned long caller)
-{
- unsigned long val;
- int stuck = INIT_STUCK;
- int cpu = get_cpu();
- int shown = 0;
-
-wlock_again:
- /* Spin while there is another writer. */
- while (((long)rw->lock) < 0) {
- if (!--stuck) {
- if (shown++ <= 2)
- show_write(str, rw, caller);
- stuck = INIT_STUCK;
- }
- rmb();
- }
-
- /* Try to acuire the write bit. */
- __asm__ __volatile__(
-" mov 1, %%g3\n"
-" sllx %%g3, 63, %%g3\n"
-" ldx [%0], %%g1\n"
-" brlz,pn %%g1, 1f\n"
-" or %%g1, %%g3, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" membar #StoreLoad | #StoreStore\n"
-" ba,pt %%xcc, 2f\n"
-" sub %%g1, %%g7, %0\n"
-"1: mov 1, %0\n"
-"2:" : "=r" (val)
- : "0" (&(rw->lock))
- : "g3", "g1", "g7", "memory");
- if (val) {
- /* We couldn't get the write bit. */
- if (!--stuck) {
- if (shown++ <= 2)
- show_write(str, rw, caller);
- stuck = INIT_STUCK;
- }
- goto wlock_again;
- }
- if ((rw->lock & ((1UL<<63)-1UL)) != 0UL) {
- /* Readers still around, drop the write
- * lock, spin, and try again.
- */
- if (!--stuck) {
- if (shown++ <= 2)
- show_write(str, rw, caller);
- stuck = INIT_STUCK;
- }
- __asm__ __volatile__(
-" mov 1, %%g3\n"
-" sllx %%g3, 63, %%g3\n"
-"1: ldx [%0], %%g1\n"
-" andn %%g1, %%g3, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" cmp %%g1, %%g7\n"
-" membar #StoreLoad | #StoreStore\n"
-" bne,pn %%xcc, 1b\n"
-" nop"
- : /* no outputs */
- : "r" (&(rw->lock))
- : "g3", "g1", "g7", "cc", "memory");
- while(rw->lock != 0) {
- if (!--stuck) {
- if (shown++ <= 2)
- show_write(str, rw, caller);
- stuck = INIT_STUCK;
- }
- rmb();
- }
- goto wlock_again;
- }
-
- /* We have it, say who we are. */
- rw->writer_pc = ((unsigned int)caller);
- rw->writer_cpu = cpu;
- current->thread.smp_lock_count++;
- current->thread.smp_lock_pc = ((unsigned int)caller);
-
- put_cpu();
-}
-
-void _do_write_unlock(rwlock_t *rw, unsigned long caller)
-{
- unsigned long val;
- int stuck = INIT_STUCK;
- int shown = 0;
-
- /* Drop our identity _first_ */
- rw->writer_pc = 0;
- rw->writer_cpu = NO_PROC_ID;
- current->thread.smp_lock_count--;
-wlock_again:
- __asm__ __volatile__(
-" membar #StoreLoad | #LoadLoad\n"
-" mov 1, %%g3\n"
-" sllx %%g3, 63, %%g3\n"
-" ldx [%0], %%g1\n"
-" andn %%g1, %%g3, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" membar #StoreLoad | #StoreStore\n"
-" sub %%g1, %%g7, %0\n"
- : "=r" (val)
- : "0" (&(rw->lock))
- : "g3", "g1", "g7", "memory");
- if (val) {
- if (!--stuck) {
- if (shown++ <= 2)
- show_write("write_unlock", rw, caller);
- stuck = INIT_STUCK;
- }
- goto wlock_again;
- }
-}
-
-int _do_write_trylock(rwlock_t *rw, char *str, unsigned long caller)
-{
- unsigned long val;
- int cpu = get_cpu();
-
- /* Try to acuire the write bit. */
- __asm__ __volatile__(
-" mov 1, %%g3\n"
-" sllx %%g3, 63, %%g3\n"
-" ldx [%0], %%g1\n"
-" brlz,pn %%g1, 1f\n"
-" or %%g1, %%g3, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" membar #StoreLoad | #StoreStore\n"
-" ba,pt %%xcc, 2f\n"
-" sub %%g1, %%g7, %0\n"
-"1: mov 1, %0\n"
-"2:" : "=r" (val)
- : "0" (&(rw->lock))
- : "g3", "g1", "g7", "memory");
-
- if (val) {
- put_cpu();
- return 0;
- }
-
- if ((rw->lock & ((1UL<<63)-1UL)) != 0UL) {
- /* Readers still around, drop the write
- * lock, return failure.
- */
- __asm__ __volatile__(
-" mov 1, %%g3\n"
-" sllx %%g3, 63, %%g3\n"
-"1: ldx [%0], %%g1\n"
-" andn %%g1, %%g3, %%g7\n"
-" casx [%0], %%g1, %%g7\n"
-" cmp %%g1, %%g7\n"
-" membar #StoreLoad | #StoreStore\n"
-" bne,pn %%xcc, 1b\n"
-" nop"
- : /* no outputs */
- : "r" (&(rw->lock))
- : "g3", "g1", "g7", "cc", "memory");
-
- put_cpu();
-
- return 0;
- }
-
- /* We have it, say who we are. */
- rw->writer_pc = ((unsigned int)caller);
- rw->writer_cpu = cpu;
- current->thread.smp_lock_count++;
- current->thread.smp_lock_pc = ((unsigned int)caller);
-
- put_cpu();
-
- return 1;
-}
-
-#endif /* CONFIG_SMP */
diff --git a/arch/sparc64/solaris/ioctl.c b/arch/sparc64/solaris/ioctl.c
index cac0a1cf005..be0a054e3ed 100644
--- a/arch/sparc64/solaris/ioctl.c
+++ b/arch/sparc64/solaris/ioctl.c
@@ -24,6 +24,7 @@
#include <linux/netdevice.h>
#include <linux/mtio.h>
#include <linux/time.h>
+#include <linux/rcupdate.h>
#include <linux/compat.h>
#include <net/sock.h>
@@ -293,16 +294,18 @@ static struct module_info {
static inline int solaris_sockmod(unsigned int fd, unsigned int cmd, u32 arg)
{
struct inode *ino;
+ struct fdtable *fdt;
/* I wonder which of these tests are superfluous... --patrik */
- spin_lock(&current->files->file_lock);
- if (! current->files->fd[fd] ||
- ! current->files->fd[fd]->f_dentry ||
- ! (ino = current->files->fd[fd]->f_dentry->d_inode) ||
+ rcu_read_lock();
+ fdt = files_fdtable(current->files);
+ if (! fdt->fd[fd] ||
+ ! fdt->fd[fd]->f_dentry ||
+ ! (ino = fdt->fd[fd]->f_dentry->d_inode) ||
! S_ISSOCK(ino->i_mode)) {
- spin_unlock(&current->files->file_lock);
+ rcu_read_unlock();
return TBADF;
}
- spin_unlock(&current->files->file_lock);
+ rcu_read_unlock();
switch (cmd & 0xff) {
case 109: /* SI_SOCKPARAMS */
diff --git a/arch/sparc64/solaris/timod.c b/arch/sparc64/solaris/timod.c
index 022c80f4339..aaad29c35c8 100644
--- a/arch/sparc64/solaris/timod.c
+++ b/arch/sparc64/solaris/timod.c
@@ -143,9 +143,11 @@ static struct T_primsg *timod_mkctl(int size)
static void timod_wake_socket(unsigned int fd)
{
struct socket *sock;
+ struct fdtable *fdt;
SOLD("wakeing socket");
- sock = SOCKET_I(current->files->fd[fd]->f_dentry->d_inode);
+ fdt = files_fdtable(current->files);
+ sock = SOCKET_I(fdt->fd[fd]->f_dentry->d_inode);
wake_up_interruptible(&sock->wait);
read_lock(&sock->sk->sk_callback_lock);
if (sock->fasync_list && !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
@@ -157,9 +159,11 @@ static void timod_wake_socket(unsigned int fd)
static void timod_queue(unsigned int fd, struct T_primsg *it)
{
struct sol_socket_struct *sock;
+ struct fdtable *fdt;
SOLD("queuing primsg");
- sock = (struct sol_socket_struct *)current->files->fd[fd]->private_data;
+ fdt = files_fdtable(current->files);
+ sock = (struct sol_socket_struct *)fdt->fd[fd]->private_data;
it->next = sock->pfirst;
sock->pfirst = it;
if (!sock->plast)
@@ -171,9 +175,11 @@ static void timod_queue(unsigned int fd, struct T_primsg *it)
static void timod_queue_end(unsigned int fd, struct T_primsg *it)
{
struct sol_socket_struct *sock;
+ struct fdtable *fdt;
SOLD("queuing primsg at end");
- sock = (struct sol_socket_struct *)current->files->fd[fd]->private_data;
+ fdt = files_fdtable(current->files);
+ sock = (struct sol_socket_struct *)fdt->fd[fd]->private_data;
it->next = NULL;
if (sock->plast)
sock->plast->next = it;
@@ -344,6 +350,7 @@ int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len,
char *buf;
struct file *filp;
struct inode *ino;
+ struct fdtable *fdt;
struct sol_socket_struct *sock;
mm_segment_t old_fs = get_fs();
long args[6];
@@ -351,7 +358,9 @@ int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len,
(int (*)(int, unsigned long __user *))SYS(socketcall);
int (*sys_sendto)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int) =
(int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int))SYS(sendto);
- filp = current->files->fd[fd];
+
+ fdt = files_fdtable(current->files);
+ filp = fdt->fd[fd];
ino = filp->f_dentry->d_inode;
sock = (struct sol_socket_struct *)filp->private_data;
SOLD("entry");
@@ -620,6 +629,7 @@ int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, s32 __us
int oldflags;
struct file *filp;
struct inode *ino;
+ struct fdtable *fdt;
struct sol_socket_struct *sock;
struct T_unitdata_ind udi;
mm_segment_t old_fs = get_fs();
@@ -632,7 +642,8 @@ int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, s32 __us
SOLD("entry");
SOLDD(("%u %p %d %p %p %d %p %d\n", fd, ctl_buf, ctl_maxlen, ctl_len, data_buf, data_maxlen, data_len, *flags_p));
- filp = current->files->fd[fd];
+ fdt = files_fdtable(current->files);
+ filp = fdt->fd[fd];
ino = filp->f_dentry->d_inode;
sock = (struct sol_socket_struct *)filp->private_data;
SOLDD(("%p %p\n", sock->pfirst, sock->pfirst ? sock->pfirst->next : NULL));
@@ -844,12 +855,14 @@ asmlinkage int solaris_getmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3)
int __user *flgptr;
int flags;
int error = -EBADF;
+ struct fdtable *fdt;
SOLD("entry");
lock_kernel();
if(fd >= NR_OPEN) goto out;
- filp = current->files->fd[fd];
+ fdt = files_fdtable(current->files);
+ filp = fdt->fd[fd];
if(!filp) goto out;
ino = filp->f_dentry->d_inode;
@@ -910,12 +923,14 @@ asmlinkage int solaris_putmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3)
struct strbuf ctl, dat;
int flags = (int) arg3;
int error = -EBADF;
+ struct fdtable *fdt;
SOLD("entry");
lock_kernel();
if(fd >= NR_OPEN) goto out;
- filp = current->files->fd[fd];
+ fdt = files_fdtable(current->files);
+ filp = fdt->fd[fd];
if(!filp) goto out;
ino = filp->f_dentry->d_inode;