[PATCH 05/06]
This is a trivial patch that changes all the (id % SEQ_MULTIPLIER) into a call
to the ipcid_to_idx(id) macro.
Signed-off-by: Nadia Derbey <[EMAIL PROTECTED]>
---
ipc/msg.c | 2 +-
ipc/sem.c | 3 +--
ipc/shm.c | 6 ++----
ipc/util.c | 10 +++++-----
ipc/util.h | 2 ++
5 files changed, 11 insertions(+), 12 deletions(-)
Index: linux-2.6.21/ipc/util.h
===================================================================
--- linux-2.6.21.orig/ipc/util.h 2007-06-07 14:57:07.000000000 +0200
+++ linux-2.6.21/ipc/util.h 2007-06-07 15:15:37.000000000 +0200
@@ -58,6 +58,8 @@ void __init ipc_init_proc_interface(cons
#define IPC_MSG_IDS 1
#define IPC_SHM_IDS 2
+#define ipcid_to_idx(id) ((id) % SEQ_MULTIPLIER)
+
/* must be called with ids->mutex acquired.*/
struct kern_ipc_perm *ipc_findkey(struct ipc_ids *, key_t);
int ipc_addid(struct ipc_ids *, struct kern_ipc_perm *, int);
Index: linux-2.6.21/ipc/util.c
===================================================================
--- linux-2.6.21.orig/ipc/util.c 2007-06-07 14:57:34.000000000 +0200
+++ linux-2.6.21/ipc/util.c 2007-06-07 15:17:31.000000000 +0200
@@ -270,7 +270,7 @@ struct kern_ipc_perm *ipc_findkey(struct
}
/* prepare for next id gang lookup */
- next_id = (ipcs[nb_ipcs - 1]->id % SEQ_MULTIPLIER) + 1;
+ next_id = ipcid_to_idx(ipcs[nb_ipcs - 1]->id) + 1;
}
return NULL;
@@ -396,7 +396,7 @@ int ipc_addid(struct ipc_ids* ids, struc
void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
{
struct kern_ipc_perm* p;
- int lid = ipcp->id % SEQ_MULTIPLIER;
+ int lid = ipcid_to_idx(ipcp->id);
BUG_ON(lid > ids->max_id);
/*
@@ -670,7 +670,7 @@ void ipc64_perm_to_ipc_perm (struct ipc6
struct kern_ipc_perm *ipc_lock(struct ipc_ids *ids, int id, int checkid)
{
struct kern_ipc_perm* out;
- int lid = id % SEQ_MULTIPLIER;
+ int lid = ipcid_to_idx(id);
rcu_read_lock();
if (lid > ids->max_id) {
@@ -781,7 +781,7 @@ static void *sysvipc_proc_next(struct se
ipc = ipcs[0];
ipc_lock_by_ptr(ipc);
- *pos = (ipc->id % SEQ_MULTIPLIER) + 1;
+ *pos = ipcid_to_idx(ipc->id) + 1;
return ipc;
}
@@ -823,7 +823,7 @@ static void *sysvipc_proc_start(struct s
ipc = ipcs[0];
ipc_lock_by_ptr(ipc);
- *pos = (ipc->id % SEQ_MULTIPLIER) + 1;
+ *pos = ipcid_to_idx(ipc->id) + 1;
return ipc;
}
Index: linux-2.6.21/ipc/msg.c
===================================================================
--- linux-2.6.21.orig/ipc/msg.c 2007-06-07 14:40:08.000000000 +0200
+++ linux-2.6.21/ipc/msg.c 2007-06-07 15:18:32.000000000 +0200
@@ -130,7 +130,7 @@ void msg_exit_ns(struct ipc_namespace *n
}
/* prepare for next id gang lookup */
- next_id = (msqs[nb_msqs - 1]->q_perm.id % SEQ_MULTIPLIER) + 1;
+ next_id = ipcid_to_idx(msqs[nb_msqs - 1]->q_perm.id) + 1;
}
mutex_unlock(&msg_ids(ns).mutex);
Index: linux-2.6.21/ipc/sem.c
===================================================================
--- linux-2.6.21.orig/ipc/sem.c 2007-06-07 14:56:36.000000000 +0200
+++ linux-2.6.21/ipc/sem.c 2007-06-07 15:19:21.000000000 +0200
@@ -169,8 +169,7 @@ void sem_exit_ns(struct ipc_namespace *n
}
/* prepare for next id gang lookup */
- next_id = (smas[nb_smas - 1]->sem_perm.id % SEQ_MULTIPLIER)
- + 1;
+ next_id = ipcid_to_idx(smas[nb_smas - 1]->sem_perm.id) + 1;
}
mutex_unlock(&sem_ids(ns).mutex);
Index: linux-2.6.21/ipc/shm.c
===================================================================
--- linux-2.6.21.orig/ipc/shm.c 2007-06-07 14:55:28.000000000 +0200
+++ linux-2.6.21/ipc/shm.c 2007-06-07 15:20:20.000000000 +0200
@@ -132,8 +132,7 @@ void shm_exit_ns(struct ipc_namespace *n
}
/* prepare for next id gang lookup */
- next_id = (shps[nb_shps - 1]->shm_perm.id % SEQ_MULTIPLIER)
- + 1;
+ next_id = ipcid_to_idx(shps[nb_shps - 1]->shm_perm.id) + 1;
}
mutex_unlock(&shm_ids(ns).mutex);
@@ -596,8 +595,7 @@ static void shm_get_stat(struct ipc_name
}
/* prepare for next id gang lookup */
- next_id = (shps[nb_shps - 1]->shm_perm.id % SEQ_MULTIPLIER)
- + 1;
+ next_id = ipcid_to_idx(shps[nb_shps - 1]->shm_perm.id) + 1;
}
}
--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
