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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-09 20:33:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-09 20:33:18 -0700
commite864561c12bc743789eab76242b8314d394daa52 (patch)
tree5f9bf951fd8e713b224062a37b2a0b24c14f17ce /include/linux/spinlock.h
parent42359da44112565e12a5209befb36dc6b6d6cd9c (diff)
parente594e96e8a14101a6decabf6746bd5186287debc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits) cxgb3: Fix crash caused by stashing wrong netdev_queue ixgbe: Fix coexistence of FCoE and Flow Director in 82599 memory barrier: adding smp_mb__after_lock net: adding memory barrier to the poll and receive callbacks netpoll: Fix carrier detection for drivers that are using phylib includecheck fix: include/linux, rfkill.h p54: tx refused but queue active Atheros Kconfig needs to be dependent on WLAN_80211 mac80211: fix docbook mac80211_hwsim: avoid NULL access ssb: Add support for 4318E b43: Add support for 4318E zd1211rw: adding SONY IFU-WLM2 (054c:0257) as a zd1211b device zd1211rw: 07b8:6001 is a ZD1211B r6040: bump driver version to 0.24 and date to 08 July 2009 r6040: restore MIER register correctly when IRQ line is shared ipv4: Fix fib_trie rebalancing, part 4 (root thresholds) davinci_emac: fix kernel oops when changing MAC address while interface is down igb: set lan id prior to configuring phy mac80211: minstrel: avoid accessing negative indices in rix_to_ndx() ...
Diffstat (limited to 'include/linux/spinlock.h')
-rw-r--r--include/linux/spinlock.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 252b245cfcf..4be57ab0347 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -132,6 +132,11 @@ do { \
#endif /*__raw_spin_is_contended*/
#endif
+/* The lock does not imply full memory barrier. */
+#ifndef ARCH_HAS_SMP_MB_AFTER_LOCK
+static inline void smp_mb__after_lock(void) { smp_mb(); }
+#endif
+
/**
* spin_unlock_wait - wait until the spinlock gets unlocked
* @lock: the spinlock in question.