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ipc: introduce the ipcid_to_idx macro

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This is a trivial patch that changes all the (id % SEQ_MULTIPLIER) into a call
to the ipcid_to_idx(id) macro.

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>
This commit is contained in:
Nadia Derbey
2007-10-18 23:40:52 -07:00
committed by Linus Torvalds
parent 03f02c7657
commit ce621f5ba5
2 changed files with 4 additions and 2 deletions
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2
ipc/util.h
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@ -79,6 +79,8 @@ void __init ipc_init_proc_interface(const char *path, const char *header,
#define IPC_MSG_IDS 1
#define IPC_SHM_IDS 2
#define ipcid_to_idx(id) ((id) % SEQ_MULTIPLIER)
/* must be called with ids->mutex acquired.*/
int ipc_addid(struct ipc_ids *, struct kern_ipc_perm *, int);
int ipc_get_maxid(struct ipc_ids *);