diff options
Diffstat (limited to 'net/tipc/ref.c')
| -rw-r--r-- | net/tipc/ref.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/net/tipc/ref.c b/net/tipc/ref.c index e6d6ae22..6704a58 100644 --- a/net/tipc/ref.c +++ b/net/tipc/ref.c @@ -1,6 +1,6 @@ /* * net/tipc/ref.c: TIPC object registry code - * + * * Copyright (c) 1991-2006, Ericsson AB * Copyright (c) 2004-2005, Wind River Systems * All rights reserved. @@ -50,11 +50,11 @@ * Object reference table consists of 2**N entries. * * A used entry has object ptr != 0, reference == XXXX|own index - * (XXXX changes each time entry is acquired) + * (XXXX changes each time entry is acquired) * A free entry has object ptr == 0, reference == YYYY|next free index * (YYYY is one more than last used XXXX) * - * Free list is initially chained from entry (2**N)-1 to entry 1. + * Free list is initially chained from entry (2**N)-1 to entry 1. * Entry 0 is not used to allow index 0 to indicate the end of the free list. * * Note: Any accidental reference of the form XXXX|0--0 won't match entry 0 @@ -113,9 +113,9 @@ void tipc_ref_table_stop(void) /** * tipc_ref_acquire - create reference to an object - * + * * Return a unique reference value which can be translated back to the pointer - * 'object' at a later time. Also, pass back a pointer to the lock protecting + * 'object' at a later time. Also, pass back a pointer to the lock protecting * the object, but without locking it. */ @@ -141,15 +141,15 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock) index = tipc_ref_table.first_free; entry = &(tipc_ref_table.entries[index]); index_mask = tipc_ref_table.index_mask; - /* take lock in case a previous user of entry still holds it */ - spin_lock_bh(&entry->lock); + /* take lock in case a previous user of entry still holds it */ + spin_lock_bh(&entry->lock); next_plus_upper = entry->data.next_plus_upper; tipc_ref_table.first_free = next_plus_upper & index_mask; reference = (next_plus_upper & ~index_mask) + index; entry->data.reference = reference; entry->object = object; - if (lock != 0) - *lock = &entry->lock; + if (lock != 0) + *lock = &entry->lock; spin_unlock_bh(&entry->lock); } write_unlock_bh(&ref_table_lock); @@ -158,7 +158,7 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock) /** * tipc_ref_discard - invalidate references to an object - * + * * Disallow future references to an object and free up the entry for re-use. * Note: The entry's spin_lock may still be busy after discard */ @@ -166,7 +166,7 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock) void tipc_ref_discard(u32 ref) { struct reference *entry; - u32 index; + u32 index; u32 index_mask; if (!ref) { @@ -198,7 +198,7 @@ void tipc_ref_discard(u32 ref) tipc_ref_table.first_free = index; else /* next_plus_upper is always XXXX|0--0 for last free entry */ - tipc_ref_table.entries[tipc_ref_table.last_free].data.next_plus_upper + tipc_ref_table.entries[tipc_ref_table.last_free].data.next_plus_upper |= index; tipc_ref_table.last_free = index; |
