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| author | David S. Miller | 2008-05-15 09:34:44 +0200 |
|---|---|---|
| committer | David S. Miller | 2008-05-15 09:34:44 +0200 |
| commit | 63fe46da9c380b3f2bbdf3765044649517cc717c (patch) | |
| tree | 9478c1aca1d692b408955aea20c9cd9a37e589c0 /include/linux/rcupdate.h | |
| parent | Merge branch 'upstream-next' of master.kernel.org:/pub/scm/linux/kernel/git/j... (diff) | |
| parent | isdn/capi: Return proper errnos on module init. (diff) | |
| download | kernel-qcow2-linux-63fe46da9c380b3f2bbdf3765044649517cc717c.tar.gz kernel-qcow2-linux-63fe46da9c380b3f2bbdf3765044649517cc717c.tar.xz kernel-qcow2-linux-63fe46da9c380b3f2bbdf3765044649517cc717c.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/iwlwifi/iwl-4965-rs.c
drivers/net/wireless/rt2x00/rt61pci.c
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 8082d6587a0f..d42dbec06083 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -131,18 +131,6 @@ struct rcu_head { */ #define rcu_read_unlock_bh() __rcu_read_unlock_bh() -/* - * Prevent the compiler from merging or refetching accesses. The compiler - * is also forbidden from reordering successive instances of ACCESS_ONCE(), - * but only when the compiler is aware of some particular ordering. One way - * to make the compiler aware of ordering is to put the two invocations of - * ACCESS_ONCE() in different C statements. - * - * This macro does absolutely -nothing- to prevent the CPU from reordering, - * merging, or refetching absolutely anything at any time. - */ -#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) - /** * rcu_dereference - fetch an RCU-protected pointer in an * RCU read-side critical section. This pointer may later |