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Diffstat (limited to 'kernel/exec_domain.c')
-rw-r--r--kernel/exec_domain.c36
1 files changed, 11 insertions, 25 deletions
diff --git a/kernel/exec_domain.c b/kernel/exec_domain.c
index dd62f8e714c..83d4382f569 100644
--- a/kernel/exec_domain.c
+++ b/kernel/exec_domain.c
@@ -37,7 +37,7 @@ static unsigned long ident_map[32] = {
struct exec_domain default_exec_domain = {
.name = "Linux", /* name */
.handler = default_handler, /* lcall7 causes a seg fault. */
- .pers_low = 0, /* PER_LINUX personality. */
+ .pers_low = 0, /* PER_LINUX personality. */
.pers_high = 0, /* PER_LINUX personality. */
.signal_map = ident_map, /* Identity map signals. */
.signal_invmap = ident_map, /* - both ways. */
@@ -83,7 +83,7 @@ lookup_exec_domain(unsigned int personality)
ep = &default_exec_domain;
out:
read_unlock(&exec_domains_lock);
- return (ep);
+ return ep;
}
int
@@ -110,8 +110,9 @@ register_exec_domain(struct exec_domain *ep)
out:
write_unlock(&exec_domains_lock);
- return (err);
+ return err;
}
+EXPORT_SYMBOL(register_exec_domain);
int
unregister_exec_domain(struct exec_domain *ep)
@@ -133,26 +134,19 @@ unregister:
write_unlock(&exec_domains_lock);
return 0;
}
+EXPORT_SYMBOL(unregister_exec_domain);
-int
-__set_personality(unsigned int personality)
+int __set_personality(unsigned int personality)
{
- struct exec_domain *ep, *oep;
-
- ep = lookup_exec_domain(personality);
- if (ep == current_thread_info()->exec_domain) {
- current->personality = personality;
- module_put(ep->module);
- return 0;
- }
+ struct exec_domain *oep = current_thread_info()->exec_domain;
+ current_thread_info()->exec_domain = lookup_exec_domain(personality);
current->personality = personality;
- oep = current_thread_info()->exec_domain;
- current_thread_info()->exec_domain = ep;
-
module_put(oep->module);
+
return 0;
}
+EXPORT_SYMBOL(__set_personality);
#ifdef CONFIG_PROC_FS
static int execdomains_proc_show(struct seq_file *m, void *v)
@@ -192,16 +186,8 @@ SYSCALL_DEFINE1(personality, unsigned int, personality)
{
unsigned int old = current->personality;
- if (personality != 0xffffffff) {
+ if (personality != 0xffffffff)
set_personality(personality);
- if (current->personality != personality)
- return -EINVAL;
- }
return old;
}
-
-
-EXPORT_SYMBOL(register_exec_domain);
-EXPORT_SYMBOL(unregister_exec_domain);
-EXPORT_SYMBOL(__set_personality);