diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-18 18:02:35 -0700 | 
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-18 18:02:35 -0700 | 
| commit | 334d094504c2fe1c44211ecb49146ae6bca8c321 (patch) | |
| tree | d3c0f68e4b9f8e3d2ccc39e7dfe5de0534a5fad9 /net/tipc/ref.h | |
| parent | d1a4be630fb068f251d64b62919f143c49ca8057 (diff) | |
| parent | d1643d24c61b725bef399cc1cf2944b4c9c23177 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26: (1090 commits)
  [NET]: Fix and allocate less memory for ->priv'less netdevices
  [IPV6]: Fix dangling references on error in fib6_add().
  [NETLABEL]: Fix NULL deref in netlbl_unlabel_staticlist_gen() if ifindex not found
  [PKT_SCHED]: Fix datalen check in tcf_simp_init().
  [INET]: Uninline the __inet_inherit_port call.
  [INET]: Drop the inet_inherit_port() call.
  SCTP: Initialize partial_bytes_acked to 0, when all of the data is acked.
  [netdrvr] forcedeth: internal simplifications; changelog removal
  phylib: factor out get_phy_id from within get_phy_device
  PHY: add BCM5464 support to broadcom PHY driver
  cxgb3: Fix __must_check warning with dev_dbg.
  tc35815: Statistics cleanup
  natsemi: fix MMIO for PPC 44x platforms
  [TIPC]: Cleanup of TIPC reference table code
  [TIPC]: Optimized initialization of TIPC reference table
  [TIPC]: Remove inlining of reference table locking routines
  e1000: convert uint16_t style integers to u16
  ixgb: convert uint16_t style integers to u16
  sb1000.c: make const arrays static
  sb1000.c: stop inlining largish static functions
  ...
Diffstat (limited to 'net/tipc/ref.h')
| -rw-r--r-- | net/tipc/ref.h | 89 | 
1 files changed, 4 insertions, 85 deletions
| diff --git a/net/tipc/ref.h b/net/tipc/ref.h index 38f3a7f4a78..7e3798ea93b 100644 --- a/net/tipc/ref.h +++ b/net/tipc/ref.h @@ -2,7 +2,7 @@   * net/tipc/ref.h: Include file for TIPC object registry code   *   * Copyright (c) 1991-2006, Ericsson AB - * Copyright (c) 2005, Wind River Systems + * Copyright (c) 2005-2006, Wind River Systems   * All rights reserved.   *   * Redistribution and use in source and binary forms, with or without @@ -37,95 +37,14 @@  #ifndef _TIPC_REF_H  #define _TIPC_REF_H -/** - * struct reference - TIPC object reference entry - * @object: pointer to object associated with reference entry - * @lock: spinlock controlling access to object - * @data: reference value associated with object (or link to next unused entry) - */ - -struct reference { -	void *object; -	spinlock_t lock; -	union { -		u32 next_plus_upper; -		u32 reference; -	} data; -}; - -/** - * struct tipc_ref_table - table of TIPC object reference entries - * @entries: pointer to array of reference entries - * @index_mask: bitmask for array index portion of reference values - * @first_free: array index of first unused object reference entry - * @last_free: array index of last unused object reference entry - */ - -struct ref_table { -	struct reference *entries; -	u32 index_mask; -	u32 first_free; -	u32 last_free; -}; - -extern struct ref_table tipc_ref_table; -  int tipc_ref_table_init(u32 requested_size, u32 start);  void tipc_ref_table_stop(void);  u32 tipc_ref_acquire(void *object, spinlock_t **lock);  void tipc_ref_discard(u32 ref); - -/** - * tipc_ref_lock - lock referenced object and return pointer to it - */ - -static inline void *tipc_ref_lock(u32 ref) -{ -	if (likely(tipc_ref_table.entries)) { -		struct reference *r = -			&tipc_ref_table.entries[ref & tipc_ref_table.index_mask]; - -		spin_lock_bh(&r->lock); -		if (likely(r->data.reference == ref)) -			return r->object; -		spin_unlock_bh(&r->lock); -	} -	return NULL; -} - -/** - * tipc_ref_unlock - unlock referenced object - */ - -static inline void tipc_ref_unlock(u32 ref) -{ -	if (likely(tipc_ref_table.entries)) { -		struct reference *r = -			&tipc_ref_table.entries[ref & tipc_ref_table.index_mask]; - -		if (likely(r->data.reference == ref)) -			spin_unlock_bh(&r->lock); -		else -			err("tipc_ref_unlock() invoked using obsolete reference\n"); -	} -} - -/** - * tipc_ref_deref - return pointer referenced object (without locking it) - */ - -static inline void *tipc_ref_deref(u32 ref) -{ -	if (likely(tipc_ref_table.entries)) { -		struct reference *r = -			&tipc_ref_table.entries[ref & tipc_ref_table.index_mask]; - -		if (likely(r->data.reference == ref)) -			return r->object; -	} -	return NULL; -} +void *tipc_ref_lock(u32 ref); +void tipc_ref_unlock(u32 ref); +void *tipc_ref_deref(u32 ref);  #endif | 
