Revision be0e1e21ef707be4d16ea6a96ac9997463e4b8d2 authored by Paul E. McKenney on 21 May 2011, 12:57:18 UTC, committed by Paul E. McKenney on 20 July 2011, 04:38:53 UTC
Given some common flag combinations, particularly -Os, gcc will inline rcu_read_unlock_special() despite its being in an unlikely() clause. Use noinline to prohibit this misoptimization. In addition, move the second barrier() in __rcu_read_unlock() so that it is not on the common-case code path. This will allow the compiler to generate better code for the common-case path through __rcu_read_unlock(). Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
1 parent 7765be2
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 365 bytes |
| compat.c | -rw-r--r-- | 3.6 KB |
| encrypted.c | -rw-r--r-- | 22.3 KB |
| encrypted.h | -rw-r--r-- | 1.4 KB |
| gc.c | -rw-r--r-- | 5.2 KB |
| internal.h | -rw-r--r-- | 8.1 KB |
| key.c | -rw-r--r-- | 28.3 KB |
| keyctl.c | -rw-r--r-- | 39.1 KB |
| keyring.c | -rw-r--r-- | 30.2 KB |
| permission.c | -rw-r--r-- | 2.9 KB |
| proc.c | -rw-r--r-- | 8.2 KB |
| process_keys.c | -rw-r--r-- | 20.3 KB |
| request_key.c | -rw-r--r-- | 19.3 KB |
| request_key_auth.c | -rw-r--r-- | 6.5 KB |
| sysctl.c | -rw-r--r-- | 1.5 KB |
| trusted.c | -rw-r--r-- | 27.8 KB |
| trusted.h | -rw-r--r-- | 3.4 KB |
| user_defined.c | -rw-r--r-- | 3.9 KB |
Computing file changes ...
