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Remove identical vnet sysctl handlers, and handle CTLFLAG_VNET

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in the sysctl_root().

Note: SYSCTL_VNET_* macros can be removed as well. All is
  needed to virtualize a sysctl oid is set CTLFLAG_VNET on it.
  But for now keep macros in place to avoid large code churn.

Sponsored by:	Nginx, Inc.
This commit is contained in:
Gleb Smirnoff 2014-02-07 13:47:33 +00:00
parent 5de8a0fdf4
commit b5c32cf481
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=261590
3 changed files with 8 additions and 51 deletions
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5
sys/kern/kern_sysctl.c
View file

@ -1491,7 +1491,10 @@ sysctl_root(SYSCTL_HANDLER_ARGS)
#endif
oid->oid_running++;
SYSCTL_XUNLOCK();
#ifdef VIMAGE
if ((oid->oid_kind & CTLFLAG_VNET) && arg1 != NULL)
arg1 = (void *)(curvnet->vnet_data_base + (uintptr_t)arg1);
#endif
if (!(oid->oid_kind & CTLFLAG_MPSAFE))
mtx_lock(&Giant);
error = oid->oid_handler(oid, arg1, arg2, req);

41
sys/net/vnet.c
View file

@ -463,47 +463,6 @@ vnet_data_copy(void *start, int size)
VNET_LIST_RUNLOCK();
}
/*
* Variants on sysctl_handle_foo that know how to handle virtualized global
* variables: if 'arg1' is a pointer, then we transform it to the local vnet
* offset.
*/
int
vnet_sysctl_handle_int(SYSCTL_HANDLER_ARGS)
{
if (arg1 != NULL)
arg1 = (void *)(curvnet->vnet_data_base + (uintptr_t)arg1);
return (sysctl_handle_int(oidp, arg1, arg2, req));
}
int
vnet_sysctl_handle_opaque(SYSCTL_HANDLER_ARGS)
{
if (arg1 != NULL)
arg1 = (void *)(curvnet->vnet_data_base + (uintptr_t)arg1);
return (sysctl_handle_opaque(oidp, arg1, arg2, req));
}
int
vnet_sysctl_handle_string(SYSCTL_HANDLER_ARGS)
{
if (arg1 != NULL)
arg1 = (void *)(curvnet->vnet_data_base + (uintptr_t)arg1);
return (sysctl_handle_string(oidp, arg1, arg2, req));
}
int
vnet_sysctl_handle_uint(SYSCTL_HANDLER_ARGS)
{
if (arg1 != NULL)
arg1 = (void *)(curvnet->vnet_data_base + (uintptr_t)arg1);
return (sysctl_handle_int(oidp, arg1, arg2, req));
}
/*
* Support for special SYSINIT handlers registered via VNET_SYSINIT()
* and VNET_SYSUNINIT().

13
sys/net/vnet.h
View file

@ -290,15 +290,10 @@ void vnet_data_free(void *start_arg, int size);
* arguments themselves, if required.
*/
#ifdef SYSCTL_OID
int vnet_sysctl_handle_int(SYSCTL_HANDLER_ARGS);
int vnet_sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
int vnet_sysctl_handle_string(SYSCTL_HANDLER_ARGS);
int vnet_sysctl_handle_uint(SYSCTL_HANDLER_ARGS);
#define SYSCTL_VNET_INT(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_INT|CTLFLAG_MPSAFE|CTLFLAG_VNET|(access), \
ptr, val, vnet_sysctl_handle_int, "I", descr)
ptr, val, sysctl_handle_int, "I", descr)
#define SYSCTL_VNET_PROC(parent, nbr, name, access, ptr, arg, handler, \
fmt, descr) \
CTASSERT(((access) & CTLTYPE) != 0); \
@ -312,16 +307,16 @@ int vnet_sysctl_handle_uint(SYSCTL_HANDLER_ARGS);
#define SYSCTL_VNET_STRING(parent, nbr, name, access, arg, len, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_STRING|CTLFLAG_VNET|(access), \
arg, len, vnet_sysctl_handle_string, "A", descr)
arg, len, sysctl_handle_string, "A", descr)
#define SYSCTL_VNET_STRUCT(parent, nbr, name, access, ptr, type, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_OPAQUE|CTLFLAG_VNET|(access), ptr, \
sizeof(struct type), vnet_sysctl_handle_opaque, "S," #type, \
sizeof(struct type), sysctl_handle_opaque, "S," #type, \
descr)
#define SYSCTL_VNET_UINT(parent, nbr, name, access, ptr, val, descr) \
SYSCTL_OID(parent, nbr, name, \
CTLTYPE_UINT|CTLFLAG_MPSAFE|CTLFLAG_VNET|(access), \
ptr, val, vnet_sysctl_handle_uint, "IU", descr)
ptr, val, sysctl_handle_int, "IU", descr)
#define VNET_SYSCTL_ARG(req, arg1) do { \
if (arg1 != NULL) \
arg1 = (void *)(TD_TO_VNET((req)->td)->vnet_data_base + \