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authorPierre Peiffer <pierre.peiffer@bull.net>2008-04-29 01:00:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:12 -0700
commit48dea404ed01869313f1908cca8a15774dcd8ee5 (patch)
treec4c50c9032556cf96b21f8704e4544998769b6b9 /ipc
parent02d15c43225afb2ebb6d700144285175a1c4abd9 (diff)
downloadconfigs-48dea404ed01869313f1908cca8a15774dcd8ee5.tar.gz
IPC: use ipc_buildid() directly from ipc_addid()
By continuing to consolidate a little the IPC code, each id can be built directly in ipc_addid() instead of having it built from each callers of ipc_addid() And I also remove shm_addid() in order to have, as much as possible, the same code for shm/sem/msg. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Pierre Peiffer <pierre.peiffer@bull.net> Cc: Nadia Derbey <Nadia.Derbey@bull.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/msg.c2
-rw-r--r--ipc/sem.c2
-rw-r--r--ipc/shm.c10
-rw-r--r--ipc/util.c1
4 files changed, 2 insertions, 13 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 46585a05473..805ee08ec8b 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -70,7 +70,6 @@ struct msg_sender {
#define msg_ids(ns) ((ns)->ids[IPC_MSG_IDS])
#define msg_unlock(msq) ipc_unlock(&(msq)->q_perm)
-#define msg_buildid(id, seq) ipc_buildid(id, seq)
static void freeque(struct ipc_namespace *, struct kern_ipc_perm *);
static int newque(struct ipc_namespace *, struct ipc_params *);
@@ -186,7 +185,6 @@ static int newque(struct ipc_namespace *ns, struct ipc_params *params)
return id;
}
- msq->q_perm.id = msg_buildid(id, msq->q_perm.seq);
msq->q_stime = msq->q_rtime = 0;
msq->q_ctime = get_seconds();
msq->q_cbytes = msq->q_qnum = 0;
diff --git a/ipc/sem.c b/ipc/sem.c
index 0b45a4d383c..08da8648925 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -91,7 +91,6 @@
#define sem_unlock(sma) ipc_unlock(&(sma)->sem_perm)
#define sem_checkid(sma, semid) ipc_checkid(&sma->sem_perm, semid)
-#define sem_buildid(id, seq) ipc_buildid(id, seq)
static int newary(struct ipc_namespace *, struct ipc_params *);
static void freeary(struct ipc_namespace *, struct kern_ipc_perm *);
@@ -268,7 +267,6 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
}
ns->used_sems += nsems;
- sma->sem_perm.id = sem_buildid(id, sma->sem_perm.seq);
sma->sem_base = (struct sem *) &sma[1];
/* sma->sem_pending = NULL; */
sma->sem_pending_last = &sma->sem_pending;
diff --git a/ipc/shm.c b/ipc/shm.c
index e636910454a..3e4aff98254 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -60,7 +60,6 @@ static struct vm_operations_struct shm_vm_ops;
#define shm_unlock(shp) \
ipc_unlock(&(shp)->shm_perm)
-#define shm_buildid(id, seq) ipc_buildid(id, seq)
static int newseg(struct ipc_namespace *, struct ipc_params *);
static void shm_open(struct vm_area_struct *vma);
@@ -169,12 +168,6 @@ static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
ipc_rmid(&shm_ids(ns), &s->shm_perm);
}
-static inline int shm_addid(struct ipc_namespace *ns, struct shmid_kernel *shp)
-{
- return ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);
-}
-
-
/* This is called by fork, once for every shm attach. */
static void shm_open(struct vm_area_struct *vma)
@@ -416,7 +409,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
if (IS_ERR(file))
goto no_file;
- id = shm_addid(ns, shp);
+ id = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);
if (id < 0) {
error = id;
goto no_id;
@@ -428,7 +421,6 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
shp->shm_ctim = get_seconds();
shp->shm_segsz = size;
shp->shm_nattch = 0;
- shp->shm_perm.id = shm_buildid(id, shp->shm_perm.seq);
shp->shm_file = file;
/*
* shmid gets reported as "inode#" in /proc/pid/maps.
diff --git a/ipc/util.c b/ipc/util.c
index fd1b50da9db..cb017c7b937 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -231,6 +231,7 @@ int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size)
if(ids->seq > ids->seq_max)
ids->seq = 0;
+ new->id = ipc_buildid(id, new->seq);
spin_lock_init(&new->lock);
new->deleted = 0;
rcu_read_lock();