| From | Rik van Riel <> | Subject | [PATCH 1/7] ipc: remove bogus lock comment for ipc_checkid | Date | Wed, 20 Mar 2013 15:55:31 -0400 |
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From: Davidlohr Bueso <davidlohr.bueso@hp.com>
There is no reason to be holding the ipc lock while reading ipcp->seq, hence remove misleading comment.
Also simplify the return value for the function.
Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com> --- ipc/util.h | 7 +------ 1 files changed, 1 insertions(+), 6 deletions(-)
diff --git a/ipc/util.h b/ipc/util.h index eeb79a1..ac1480a 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -150,14 +150,9 @@ static inline int ipc_buildid(int id, int seq) return SEQ_MULTIPLIER * seq + id; } -/* - * Must be called with ipcp locked - */ static inline int ipc_checkid(struct kern_ipc_perm *ipcp, int uid) { - if (uid / SEQ_MULTIPLIER != ipcp->seq) - return 1; - return 0; + return uid / SEQ_MULTIPLIER != ipcp->seq; } static inline void ipc_lock_by_ptr(struct kern_ipc_perm *perm) -- 1.7.7.6
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