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| author | Ingo Molnar <mingo@elte.hu> | 2008-11-21 08:57:04 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-21 08:57:04 +0100 |
| commit | fc02e90c34bacd5d7bc77b832c65a8f06e1bd60e (patch) | |
| tree | d870acafa2290779aa7c0594172bf1c691d3e6c0 /ipc/util.c | |
| parent | sched: fix inconsistency when redistribute per-cpu tg->cfs_rq shares (diff) | |
| parent | Linux 2.6.28-rc6 (diff) | |
| download | linux-fc02e90c34bacd5d7bc77b832c65a8f06e1bd60e.tar.xz linux-fc02e90c34bacd5d7bc77b832c65a8f06e1bd60e.zip | |
Merge commit 'v2.6.28-rc6' into sched/core
Diffstat (limited to 'ipc/util.c')
| -rw-r--r-- | ipc/util.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/ipc/util.c b/ipc/util.c index 49b3ea615dc5..361fd1c96fcf 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; } |