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ipc: drop ipc_lock_by_ptr

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After previous cleanups and optimizations, this function is no longer
heavily used and we don't have a good reason to keep it.  Update the few
remaining callers and get rid of it.

Signed-off-by: Davidlohr Bueso <[email protected]>
Cc: Sedat Dilek <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Manfred Spraul <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Davidlohr Bueso 2013-09-11 14:26:29 -07:00 • committed by Linus Torvalds
commit 32a2750010
3 changed files with 6 additions and 9 deletions
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6
ipc/util.c
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@ -205,7 +205,8 @@ static struct kern_ipc_perm *ipc_findkey(struct ipc_ids *ids, key_t key)
continue;
}
ipc_lock_by_ptr(ipc);
rcu_read_lock();
ipc_lock_object(ipc);
return ipc;
}
@ -838,7 +839,8 @@ static struct kern_ipc_perm *sysvipc_find_ipc(struct ipc_ids *ids, loff_t pos,
ipc = idr_find(&ids->ipcs_idr, pos);
if (ipc != NULL) {
*new_pos = pos + 1;
ipc_lock_by_ptr(ipc);
rcu_read_lock();
ipc_lock_object(ipc);
return ipc;
}
}