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Merge ../linux-2.6

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This commit is contained in:
James Bottomley
2006-03-21 13:05:45 -06:00
parent 2f8600dff2 ec1248e70e
commit d04cdb6421
1321 changed files with 73043 additions and 38756 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/exit.c
+5 -2
View File
@@ -807,8 +807,6 @@ fastcall NORET_TYPE void do_exit(long code)
panic("Attempted to kill the idle task!");
if (unlikely(tsk->pid == 1))
panic("Attempted to kill init!");
if (tsk->io_context)
exit_io_context();
if (unlikely(current->ptrace & PT_TRACE_EXIT)) {
current->ptrace_message = code;
@@ -822,6 +820,8 @@ fastcall NORET_TYPE void do_exit(long code)
if (unlikely(tsk->flags & PF_EXITING)) {
printk(KERN_ALERT
"Fixing recursive fault but reboot is needed!\n");
if (tsk->io_context)
exit_io_context();
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
}
@@ -881,6 +881,9 @@ fastcall NORET_TYPE void do_exit(long code)
*/
mutex_debug_check_no_locks_held(tsk);
if (tsk->io_context)
exit_io_context();
/* PF_DEAD causes final put_task_struct after we schedule. */
preempt_disable();
BUG_ON(tsk->flags & PF_DEAD);
kernel/fork.c
+2 -4
View File
@@ -1478,9 +1478,7 @@ static int unshare_vm(unsigned long unshare_flags, struct mm_struct **new_mmp)
if ((unshare_flags & CLONE_VM) &&
(mm && atomic_read(&mm->mm_users) > 1)) {
*new_mmp = dup_mm(current);
if (!*new_mmp)
return -ENOMEM;
return -EINVAL;
}
return 0;
@@ -1569,7 +1567,7 @@ asmlinkage long sys_unshare(unsigned long unshare_flags)
if (new_sigh) {
sigh = current->sighand;
current->sighand = new_sigh;
rcu_assign_pointer(current->sighand, new_sigh);
new_sigh = sigh;
}
kernel/ksysfs.c
-3
View File
@@ -15,9 +15,6 @@
#include <linux/module.h>
#include <linux/init.h>
u64 uevent_seqnum;
char uevent_helper[UEVENT_HELPER_PATH_LEN] = "/sbin/hotplug";
#define KERNEL_ATTR_RO(_name) \
static struct subsys_attribute _name##_attr = __ATTR_RO(_name)
kernel/module.c
+119 -80
View File
@@ -126,8 +126,11 @@ extern const struct kernel_symbol __start___ksymtab[];
extern const struct kernel_symbol __stop___ksymtab[];
extern const struct kernel_symbol __start___ksymtab_gpl[];
extern const struct kernel_symbol __stop___ksymtab_gpl[];
extern const struct kernel_symbol __start___ksymtab_gpl_future[];
extern const struct kernel_symbol __stop___ksymtab_gpl_future[];
extern const unsigned long __start___kcrctab[];
extern const unsigned long __start___kcrctab_gpl[];
extern const unsigned long __start___kcrctab_gpl_future[];
#ifndef CONFIG_MODVERSIONS
#define symversion(base, idx) NULL
@@ -135,6 +138,18 @@ extern const unsigned long __start___kcrctab_gpl[];
#define symversion(base, idx) ((base) ? ((base) + (idx)) : NULL)
#endif
/* lookup symbol in given range of kernel_symbols */
static const struct kernel_symbol *lookup_symbol(const char *name,
const struct kernel_symbol *start,
const struct kernel_symbol *stop)
{
const struct kernel_symbol *ks = start;
for (; ks < stop; ks++)
if (strcmp(ks->name, name) == 0)
return ks;
return NULL;
}
/* Find a symbol, return value, crc and module which owns it */
static unsigned long __find_symbol(const char *name,
struct module **owner,
@@ -142,41 +157,76 @@ static unsigned long __find_symbol(const char *name,
int gplok)
{
struct module *mod;
unsigned int i;
const struct kernel_symbol *ks;
/* Core kernel first. */
*owner = NULL;
for (i = 0; __start___ksymtab+i < __stop___ksymtab; i++) {
if (strcmp(__start___ksymtab[i].name, name) == 0) {
*crc = symversion(__start___kcrctab, i);
return __start___ksymtab[i].value;
}
ks = lookup_symbol(name, __start___ksymtab, __stop___ksymtab);
if (ks) {
*crc = symversion(__start___kcrctab, (ks - __start___ksymtab));
return ks->value;
}
if (gplok) {
for (i = 0; __start___ksymtab_gpl+i<__stop___ksymtab_gpl; i++)
if (strcmp(__start___ksymtab_gpl[i].name, name) == 0) {
*crc = symversion(__start___kcrctab_gpl, i);
return __start___ksymtab_gpl[i].value;
}
ks = lookup_symbol(name, __start___ksymtab_gpl,
__stop___ksymtab_gpl);
if (ks) {
*crc = symversion(__start___kcrctab_gpl,
(ks - __start___ksymtab_gpl));
return ks->value;
}
}
ks = lookup_symbol(name, __start___ksymtab_gpl_future,
__stop___ksymtab_gpl_future);
if (ks) {
if (!gplok) {
printk(KERN_WARNING "Symbol %s is being used "
"by a non-GPL module, which will not "
"be allowed in the future\n", name);
printk(KERN_WARNING "Please see the file "
"Documentation/feature-removal-schedule.txt "
"in the kernel source tree for more "
"details.\n");
}
*crc = symversion(__start___kcrctab_gpl_future,
(ks - __start___ksymtab_gpl_future));
return ks->value;
}
/* Now try modules. */
list_for_each_entry(mod, &modules, list) {
*owner = mod;
for (i = 0; i < mod->num_syms; i++)
if (strcmp(mod->syms[i].name, name) == 0) {
*crc = symversion(mod->crcs, i);
return mod->syms[i].value;
}
ks = lookup_symbol(name, mod->syms, mod->syms + mod->num_syms);
if (ks) {
*crc = symversion(mod->crcs, (ks - mod->syms));
return ks->value;
}
if (gplok) {
for (i = 0; i < mod->num_gpl_syms; i++) {
if (strcmp(mod->gpl_syms[i].name, name) == 0) {
*crc = symversion(mod->gpl_crcs, i);
return mod->gpl_syms[i].value;
}
ks = lookup_symbol(name, mod->gpl_syms,
mod->gpl_syms + mod->num_gpl_syms);
if (ks) {
*crc = symversion(mod->gpl_crcs,
(ks - mod->gpl_syms));
return ks->value;
}
}
ks = lookup_symbol(name, mod->gpl_future_syms,
(mod->gpl_future_syms +
mod->num_gpl_future_syms));
if (ks) {
if (!gplok) {
printk(KERN_WARNING "Symbol %s is being used "
"by a non-GPL module, which will not "
"be allowed in the future\n", name);
printk(KERN_WARNING "Please see the file "
"Documentation/feature-removal-schedule.txt "
"in the kernel source tree for more "
"details.\n");
}
*crc = symversion(mod->gpl_future_crcs,
(ks - mod->gpl_future_syms));
return ks->value;
}
}
DEBUGP("Failed to find symbol %s\n", name);
return 0;
@@ -379,7 +429,6 @@ static inline void percpu_modcopy(void *pcpudst, const void *src,
}
#endif /* CONFIG_SMP */
#ifdef CONFIG_MODULE_UNLOAD
#define MODINFO_ATTR(field) \
static void setup_modinfo_##field(struct module *mod, const char *s) \
{ \
@@ -411,12 +460,7 @@ static struct module_attribute modinfo_##field = { \
MODINFO_ATTR(version);
MODINFO_ATTR(srcversion);
static struct module_attribute *modinfo_attrs[] = {
&modinfo_version,
&modinfo_srcversion,
NULL,
};
#ifdef CONFIG_MODULE_UNLOAD
/* Init the unload section of the module. */
static void module_unload_init(struct module *mod)
{
@@ -731,6 +775,15 @@ static inline void module_unload_init(struct module *mod)
}
#endif /* CONFIG_MODULE_UNLOAD */
static struct module_attribute *modinfo_attrs[] = {
&modinfo_version,
&modinfo_srcversion,
#ifdef CONFIG_MODULE_UNLOAD
&refcnt,
#endif
NULL,
};
#ifdef CONFIG_OBSOLETE_MODPARM
/* Bounds checking done below */
static int obsparm_copy_string(const char *val, struct kernel_param *kp)
@@ -1056,37 +1109,28 @@ static inline void remove_sect_attrs(struct module *mod)
}
#endif /* CONFIG_KALLSYMS */
#ifdef CONFIG_MODULE_UNLOAD
static inline int module_add_refcnt_attr(struct module *mod)
{
return sysfs_create_file(&mod->mkobj.kobj, &refcnt.attr);
}
static void module_remove_refcnt_attr(struct module *mod)
{
return sysfs_remove_file(&mod->mkobj.kobj, &refcnt.attr);
}
#else
static inline int module_add_refcnt_attr(struct module *mod)
{
return 0;
}
static void module_remove_refcnt_attr(struct module *mod)
{
}
#endif
#ifdef CONFIG_MODULE_UNLOAD
static int module_add_modinfo_attrs(struct module *mod)
{
struct module_attribute *attr;
struct module_attribute *temp_attr;
int error = 0;
int i;
mod->modinfo_attrs = kzalloc((sizeof(struct module_attribute) *
(ARRAY_SIZE(modinfo_attrs) + 1)),
GFP_KERNEL);
if (!mod->modinfo_attrs)
return -ENOMEM;
temp_attr = mod->modinfo_attrs;
for (i = 0; (attr = modinfo_attrs[i]) && !error; i++) {
if (!attr->test ||
(attr->test && attr->test(mod)))
error = sysfs_create_file(&mod->mkobj.kobj,&attr->attr);
(attr->test && attr->test(mod))) {
memcpy(temp_attr, attr, sizeof(*temp_attr));
temp_attr->attr.owner = mod;
error = sysfs_create_file(&mod->mkobj.kobj,&temp_attr->attr);
++temp_attr;
}
}
return error;
}
@@ -1096,12 +1140,16 @@ static void module_remove_modinfo_attrs(struct module *mod)
struct module_attribute *attr;
int i;
for (i = 0; (attr = modinfo_attrs[i]); i++) {
for (i = 0; (attr = &mod->modinfo_attrs[i]); i++) {
/* pick a field to test for end of list */
if (!attr->attr.name)
break;
sysfs_remove_file(&mod->mkobj.kobj,&attr->attr);
attr->free(mod);
if (attr->free)
attr->free(mod);
}
kfree(mod->modinfo_attrs);
}
#endif
static int mod_sysfs_setup(struct module *mod,
struct kernel_param *kparam,
@@ -1119,19 +1167,13 @@ static int mod_sysfs_setup(struct module *mod,
if (err)
goto out;
err = module_add_refcnt_attr(mod);
if (err)
goto out_unreg;
err = module_param_sysfs_setup(mod, kparam, num_params);
if (err)
goto out_unreg;
#ifdef CONFIG_MODULE_UNLOAD
err = module_add_modinfo_attrs(mod);
if (err)
goto out_unreg;
#endif
return 0;
@@ -1143,10 +1185,7 @@ out:
static void mod_kobject_remove(struct module *mod)
{
#ifdef CONFIG_MODULE_UNLOAD
module_remove_modinfo_attrs(mod);
#endif
module_remove_refcnt_attr(mod);
module_param_sysfs_remove(mod);
kobject_unregister(&mod->mkobj.kobj);
@@ -1424,7 +1463,6 @@ static char *get_modinfo(Elf_Shdr *sechdrs,
return NULL;
}
#ifdef CONFIG_MODULE_UNLOAD
static void setup_modinfo(struct module *mod, Elf_Shdr *sechdrs,
unsigned int infoindex)
{
@@ -1439,23 +1477,17 @@ static void setup_modinfo(struct module *mod, Elf_Shdr *sechdrs,
attr->attr.name));
}
}
#endif
#ifdef CONFIG_KALLSYMS
int is_exported(const char *name, const struct module *mod)
{
unsigned int i;
if (!mod) {
for (i = 0; __start___ksymtab+i < __stop___ksymtab; i++)
if (strcmp(__start___ksymtab[i].name, name) == 0)
return 1;
return 0;
}
for (i = 0; i < mod->num_syms; i++)
if (strcmp(mod->syms[i].name, name) == 0)
if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab))
return 1;
else
if (lookup_symbol(name, mod->syms, mod->syms + mod->num_syms))
return 1;
return 0;
else
return 0;
}
/* As per nm */
@@ -1537,7 +1569,8 @@ static struct module *load_module(void __user *umod,
char *secstrings, *args, *modmagic, *strtab = NULL;
unsigned int i, symindex = 0, strindex = 0, setupindex, exindex,
exportindex, modindex, obsparmindex, infoindex, gplindex,
crcindex, gplcrcindex, versindex, pcpuindex;
crcindex, gplcrcindex, versindex, pcpuindex, gplfutureindex,
gplfuturecrcindex;
long arglen;
struct module *mod;
long err = 0;
@@ -1618,8 +1651,10 @@ static struct module *load_module(void __user *umod,
/* Optional sections */
exportindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab");
gplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_gpl");
gplfutureindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_gpl_future");
crcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab");
gplcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_gpl");
gplfuturecrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_gpl_future");
setupindex = find_sec(hdr, sechdrs, secstrings, "__param");
exindex = find_sec(hdr, sechdrs, secstrings, "__ex_table");
obsparmindex = find_sec(hdr, sechdrs, secstrings, "__obsparm");
@@ -1755,10 +1790,8 @@ static struct module *load_module(void __user *umod,
if (strcmp(mod->name, "driverloader") == 0)
add_taint(TAINT_PROPRIETARY_MODULE);
#ifdef CONFIG_MODULE_UNLOAD
/* Set up MODINFO_ATTR fields */
setup_modinfo(mod, sechdrs, infoindex);
#endif
/* Fix up syms, so that st_value is a pointer to location. */
err = simplify_symbols(sechdrs, symindex, strtab, versindex, pcpuindex,
@@ -1775,10 +1808,16 @@ static struct module *load_module(void __user *umod,
mod->gpl_syms = (void *)sechdrs[gplindex].sh_addr;
if (gplcrcindex)
mod->gpl_crcs = (void *)sechdrs[gplcrcindex].sh_addr;
mod->num_gpl_future_syms = sechdrs[gplfutureindex].sh_size /
sizeof(*mod->gpl_future_syms);
mod->gpl_future_syms = (void *)sechdrs[gplfutureindex].sh_addr;
if (gplfuturecrcindex)
mod->gpl_future_crcs = (void *)sechdrs[gplfuturecrcindex].sh_addr;
#ifdef CONFIG_MODVERSIONS
if ((mod->num_syms && !crcindex) ||
(mod->num_gpl_syms && !gplcrcindex)) {
(mod->num_gpl_syms && !gplcrcindex) ||
(mod->num_gpl_future_syms && !gplfuturecrcindex)) {
printk(KERN_WARNING "%s: No versions for exported symbols."
" Tainting kernel.\n", mod->name);
add_taint(TAINT_FORCED_MODULE);
kernel/params.c
-10
View File
@@ -638,13 +638,8 @@ static ssize_t module_attr_show(struct kobject *kobj,
if (!attribute->show)
return -EIO;
if (!try_module_get(mk->mod))
return -ENODEV;
ret = attribute->show(attribute, mk->mod, buf);
module_put(mk->mod);
return ret;
}
@@ -662,13 +657,8 @@ static ssize_t module_attr_store(struct kobject *kobj,
if (!attribute->store)
return -EIO;
if (!try_module_get(mk->mod))
return -ENODEV;
ret = attribute->store(attribute, mk->mod, buf, len);
module_put(mk->mod);
return ret;
}
kernel/posix-timers.c
+1
View File
@@ -353,6 +353,7 @@ static int posix_timer_fn(void *data)
hrtimer_forward(&timr->it.real.timer,
timr->it.real.interval);
ret = HRTIMER_RESTART;
++timr->it_requeue_pending;
}
}
kernel/rcupdate.c
+3 -3
View File
@@ -609,7 +609,7 @@ module_param(qlowmark, int, 0);
module_param(rsinterval, int, 0);
#endif
EXPORT_SYMBOL_GPL(rcu_batches_completed);
EXPORT_SYMBOL(call_rcu); /* WARNING: GPL-only in April 2006. */
EXPORT_SYMBOL(call_rcu_bh); /* WARNING: GPL-only in April 2006. */
EXPORT_SYMBOL_GPL_FUTURE(call_rcu); /* WARNING: GPL-only in April 2006. */
EXPORT_SYMBOL_GPL_FUTURE(call_rcu_bh); /* WARNING: GPL-only in April 2006. */
EXPORT_SYMBOL_GPL(synchronize_rcu);
EXPORT_SYMBOL(synchronize_kernel); /* WARNING: GPL-only in April 2006. */
EXPORT_SYMBOL_GPL_FUTURE(synchronize_kernel); /* WARNING: GPL-only in April 2006. */
kernel/timer.c
+2 -2
View File
@@ -1354,8 +1354,8 @@ void __init init_timers(void)
#ifdef CONFIG_TIME_INTERPOLATION
struct time_interpolator *time_interpolator;
static struct time_interpolator *time_interpolator_list;
struct time_interpolator *time_interpolator __read_mostly;
static struct time_interpolator *time_interpolator_list __read_mostly;
static DEFINE_SPINLOCK(time_interpolator_lock);
static inline u64 time_interpolator_get_cycles(unsigned int src)