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authorPaul Mackerras <paulus@samba.org>2008-12-03 20:11:06 +1100
committerPaul Mackerras <paulus@samba.org>2008-12-03 20:11:06 +1100
commit527491885554002837b5742202adc0ab5f536e54 (patch)
tree6d9c44776e0b4368eccd414b92b957fac3c5a4c6 /ipc/util.c
parentcea555d384b85271035814c5adad23e6c7fc5d2a (diff)
parent2434bbb30e79468c49cff3cff6005236f55ed188 (diff)
Merge branch 'merge'
Diffstat (limited to 'ipc/util.c')
-rw-r--r--ipc/util.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/ipc/util.c b/ipc/util.c
index 49b3ea615dc..361fd1c96fc 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -266,9 +266,17 @@ int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size)
if (ids->in_use >= size)
return -ENOSPC;
+ spin_lock_init(&new->lock);
+ new->deleted = 0;
+ rcu_read_lock();
+ spin_lock(&new->lock);
+
err = idr_get_new(&ids->ipcs_idr, new, &id);
- if (err)
+ if (err) {
+ spin_unlock(&new->lock);
+ rcu_read_unlock();
return err;
+ }
ids->in_use++;
@@ -280,10 +288,6 @@ int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size)
ids->seq = 0;
new->id = ipc_buildid(id, new->seq);
- spin_lock_init(&new->lock);
- new->deleted = 0;
- rcu_read_lock();
- spin_lock(&new->lock);
return id;
}