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audit: inline audit_syscall_entry to reduce burden on archs

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Every arch calls:

if (unlikely(current->audit_context))
	audit_syscall_entry()

which requires knowledge about audit (the existance of audit_context) in
the arch code.  Just do it all in static inline in audit.h so that arch's
can remain blissfully ignorant.

Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris
2012-01-03 14:23:06 -05:00
committed by Al Viro
parent f031cd2556
commit b05d8447e7
16 changed files with 72 additions and 86 deletions
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13
include/linux/audit.h
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@@ -418,9 +418,9 @@ extern int audit_classify_arch(int arch);
extern void audit_finish_fork(struct task_struct *child);
extern int audit_alloc(struct task_struct *task);
extern void audit_free(struct task_struct *task);
extern void audit_syscall_entry(int arch,
int major, unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3);
extern void __audit_syscall_entry(int arch,
int major, unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3);
extern void __audit_syscall_exit(int ret_success, long ret_value);
extern void __audit_getname(const char *name);
extern void audit_putname(const char *name);
@@ -435,6 +435,13 @@ static inline int audit_dummy_context(void)
void *p = current->audit_context;
return !p || *(int *)p;
}
static inline void audit_syscall_entry(int arch, int major, unsigned long a0,
unsigned long a1, unsigned long a2,
unsigned long a3)
{
if (unlikely(!audit_dummy_context()))
__audit_syscall_entry(arch, major, a0, a1, a2, a3);
}
static inline void audit_syscall_exit(void *pt_regs)
{
if (unlikely(current->audit_context)) {