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author | Nadia Derbey <Nadia.Derbey@bull.net> | 2007-10-18 23:40:50 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-19 11:53:44 -0700 |
commit | 637c36634029e4e7c81112796dafc32d56355b4a (patch) | |
tree | b30106d838864fe6c8ba97c7dc68304b820e7694 /ipc/util.c | |
parent | 7748dbfaa010b12d5fb9ddf80199534c565c6bce (diff) | |
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ipc: remove the ipc_get() routine
This is a trivial patch that removes the ipc_get() routine: it is replaced
by a call to idr_find().
Signed-off-by: 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/util.c')
-rw-r--r-- | ipc/util.c | 19 |
1 files changed, 0 insertions, 19 deletions
@@ -669,25 +669,6 @@ void ipc64_perm_to_ipc_perm (struct ipc64_perm *in, struct ipc_perm *out) out->seq = in->seq; } -/* - * So far only shm_get_stat() calls ipc_get() via shm_get(), so ipc_get() - * is called with shm_ids.mutex locked. Since grow_ary() is also called with - * shm_ids.mutex down(for Shared Memory), there is no need to add read - * barriers here to gurantee the writes in grow_ary() are seen in order - * here (for Alpha). - * - * However ipc_get() itself does not necessary require ipc_ids.mutex down. So - * if in the future ipc_get() is used by other places without ipc_ids.mutex - * down, then ipc_get() needs read memery barriers as ipc_lock() does. - */ -struct kern_ipc_perm *ipc_get(struct ipc_ids *ids, int id) -{ - struct kern_ipc_perm *out; - int lid = id % SEQ_MULTIPLIER; - out = idr_find(&ids->ipcs_idr, lid); - return out; -} - struct kern_ipc_perm *ipc_lock(struct ipc_ids *ids, int id) { struct kern_ipc_perm *out; |