Interprocess communication, core events. Added tracepoints : ipc_msg_create ipc_sem_create ipc_shm_create Signed-off-by: Mathieu Desnoyers CC: 'Peter Zijlstra' CC: "Frank Ch. Eigler" CC: 'Ingo Molnar' CC: 'Hideo AOKI' CC: Takashi Nishiie CC: 'Steven Rostedt' --- ipc/ipc-trace.h | 15 +++++++++++++++ ipc/msg.c | 6 +++++- ipc/sem.c | 6 +++++- ipc/shm.c | 6 +++++- 4 files changed, 30 insertions(+), 3 deletions(-) Index: linux-2.6-lttng/ipc/msg.c =================================================================== --- linux-2.6-lttng.orig/ipc/msg.c 2008-07-03 12:45:36.000000000 -0400 +++ linux-2.6-lttng/ipc/msg.c 2008-07-03 12:47:14.000000000 -0400 @@ -38,6 +38,7 @@ #include #include #include +#include "ipc-trace.h" #include #include @@ -314,6 +315,7 @@ asmlinkage long sys_msgget(key_t key, in struct ipc_namespace *ns; struct ipc_ops msg_ops; struct ipc_params msg_params; + long ret; ns = current->nsproxy->ipc_ns; @@ -324,7 +326,9 @@ asmlinkage long sys_msgget(key_t key, in msg_params.key = key; msg_params.flg = msgflg; - return ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params); + ret = ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params); + trace_ipc_msg_create(ret, msgflg); + return ret; } static inline unsigned long Index: linux-2.6-lttng/ipc/sem.c =================================================================== --- linux-2.6-lttng.orig/ipc/sem.c 2008-07-03 12:45:36.000000000 -0400 +++ linux-2.6-lttng/ipc/sem.c 2008-07-03 12:47:14.000000000 -0400 @@ -83,6 +83,7 @@ #include #include #include +#include "ipc-trace.h" #include #include "util.h" @@ -314,6 +315,7 @@ asmlinkage long sys_semget(key_t key, in struct ipc_namespace *ns; struct ipc_ops sem_ops; struct ipc_params sem_params; + long err; ns = current->nsproxy->ipc_ns; @@ -328,7 +330,9 @@ asmlinkage long sys_semget(key_t key, in sem_params.flg = semflg; sem_params.u.nsems = nsems; - return ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params); + err = ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params); + trace_ipc_sem_create(err, semflg); + return err; } /* Manage the doubly linked list sma->sem_pending as a FIFO: Index: linux-2.6-lttng/ipc/shm.c =================================================================== --- linux-2.6-lttng.orig/ipc/shm.c 2008-07-03 12:45:36.000000000 -0400 +++ linux-2.6-lttng/ipc/shm.c 2008-07-03 12:47:14.000000000 -0400 @@ -39,6 +39,7 @@ #include #include #include +#include "ipc-trace.h" #include @@ -460,6 +461,7 @@ asmlinkage long sys_shmget (key_t key, s struct ipc_namespace *ns; struct ipc_ops shm_ops; struct ipc_params shm_params; + long err; ns = current->nsproxy->ipc_ns; @@ -471,7 +473,9 @@ asmlinkage long sys_shmget (key_t key, s shm_params.flg = shmflg; shm_params.u.size = size; - return ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params); + err = ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params); + trace_ipc_shm_create(err, shmflg); + return err; } static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_ds *in, int version) Index: linux-2.6-lttng/ipc/ipc-trace.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6-lttng/ipc/ipc-trace.h 2008-07-03 12:47:14.000000000 -0400 @@ -0,0 +1,15 @@ +#ifndef _IPC_TRACE_H +#define _IPC_TRACE_H + +#include + +DEFINE_TRACE(ipc_msg_create, + TPPROTO(long id, int flags), + TPARGS(id, flags)); +DEFINE_TRACE(ipc_sem_create, + TPPROTO(long id, int flags), + TPARGS(id, flags)); +DEFINE_TRACE(ipc_shm_create, + TPPROTO(long id, int flags), + TPARGS(id, flags)); +#endif -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/