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Various style fixes. 7 space indent is just odd.

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This commit is contained in:
jhb 2008-09-18 20:10:11 +00:00
parent 2ba0911fd8
commit a0cba7a231
1 changed files with 74 additions and 74 deletions
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148
sys/kern/kern_syscalls.c
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@ -28,110 +28,110 @@
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/sysproto.h>
#include <sys/sysent.h>
#include <sys/syscall.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sx.h>
#include <sys/module.h>
#include <sys/sx.h>
#include <sys/syscall.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
/*
* Acts like "nosys" but can be identified in sysent for dynamic call
* number assignment for a limited number of calls.
*
* Acts like "nosys" but can be identified in sysent for dynamic call
* number assignment for a limited number of calls.
*
* Place holder for system call slots reserved for loadable modules.
*/
*/
int
lkmnosys(struct thread *td, struct nosys_args *args)
{
return(nosys(td, args));
return (nosys(td, args));
}
int
lkmressys(struct thread *td, struct nosys_args *args)
{
return(nosys(td, args));
return (nosys(td, args));
}
int
syscall_register(int *offset, struct sysent *new_sysent,
struct sysent *old_sysent)
struct sysent *old_sysent)
{
if (*offset == NO_SYSCALL) {
int i;
int i;
for (i = 1; i < SYS_MAXSYSCALL; ++i)
if (sysent[i].sy_call == (sy_call_t *)lkmnosys)
break;
if (i == SYS_MAXSYSCALL)
return ENFILE;
*offset = i;
} else if (*offset < 0 || *offset >= SYS_MAXSYSCALL)
return EINVAL;
else if (sysent[*offset].sy_call != (sy_call_t *)lkmnosys &&
sysent[*offset].sy_call != (sy_call_t *)lkmressys)
return EEXIST;
if (*offset == NO_SYSCALL) {
for (i = 1; i < SYS_MAXSYSCALL; ++i)
if (sysent[i].sy_call == (sy_call_t *)lkmnosys)
break;
if (i == SYS_MAXSYSCALL)
return (ENFILE);
*offset = i;
} else if (*offset < 0 || *offset >= SYS_MAXSYSCALL)
return (EINVAL);
else if (sysent[*offset].sy_call != (sy_call_t *)lkmnosys &&
sysent[*offset].sy_call != (sy_call_t *)lkmressys)
return (EEXIST);
*old_sysent = sysent[*offset];
sysent[*offset] = *new_sysent;
return 0;
*old_sysent = sysent[*offset];
sysent[*offset] = *new_sysent;
return (0);
}
int
syscall_deregister(int *offset, struct sysent *old_sysent)
{
if (*offset)
sysent[*offset] = *old_sysent;
return 0;
if (*offset)
sysent[*offset] = *old_sysent;
return (0);
}
int
syscall_module_handler(struct module *mod, int what, void *arg)
{
struct syscall_module_data *data = (struct syscall_module_data*)arg;
modspecific_t ms;
int error;
struct syscall_module_data *data = arg;
modspecific_t ms;
int error;
switch (what) {
case MOD_LOAD :
error = syscall_register(data->offset, data->new_sysent,
&data->old_sysent);
if (error) {
/* Leave a mark so we know to safely unload below. */
data->offset = NULL;
return error;
}
ms.intval = *data->offset;
MOD_XLOCK;
module_setspecific(mod, &ms);
MOD_XUNLOCK;
if (data->chainevh)
error = data->chainevh(mod, what, data->chainarg);
return error;
switch (what) {
case MOD_LOAD:
error = syscall_register(data->offset, data->new_sysent,
&data->old_sysent);
if (error) {
/* Leave a mark so we know to safely unload below. */
data->offset = NULL;
return (error);
}
ms.intval = *data->offset;
MOD_XLOCK;
module_setspecific(mod, &ms);
MOD_XUNLOCK;
if (data->chainevh)
error = data->chainevh(mod, what, data->chainarg);
return (error);
case MOD_UNLOAD:
/*
* MOD_LOAD failed, so just return without calling the
* chained handler since we didn't pass along the MOD_LOAD
* event.
*/
if (data->offset == NULL)
return (0);
if (data->chainevh) {
error = data->chainevh(mod, what, data->chainarg);
if (error)
return error;
}
error = syscall_deregister(data->offset, &data->old_sysent);
return (error);
default:
return EOPNOTSUPP;
}
case MOD_UNLOAD :
/*
* MOD_LOAD failed, so just return without calling the
* chained handler since we didn't pass along the MOD_LOAD
* event.
*/
if (data->offset == NULL)
return (0);
if (data->chainevh) {
error = data->chainevh(mod, what, data->chainarg);
if (error)
return error;
}
error = syscall_deregister(data->offset, &data->old_sysent);
return error;
default :
return EOPNOTSUPP;
}
if (data->chainevh)
return data->chainevh(mod, what, data->chainarg);
else
return 0;
if (data->chainevh)
return (data->chainevh(mod, what, data->chainarg));
else
return (0);
}