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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2009-08-22 13:56:53 -0700
committerIngo Molnar <mingo@elte.hu>2009-08-23 10:32:40 +0200
commit6b3ef48adf847f7adf11c870e3ffacac150f1564 (patch)
treee1403ce515bf00ade99ec806f6ab6b6db999aa0b /Documentation/RCU/whatisRCU.txt
parentf41d911f8c49a5d65c86504c19e8204bb605c4fd (diff)
downloadlinux-linaro-android-6b3ef48adf847f7adf11c870e3ffacac150f1564.tar.gz
rcu: Remove CONFIG_PREEMPT_RCU
Now that CONFIG_TREE_PREEMPT_RCU is in place, there is no further need for CONFIG_PREEMPT_RCU. Remove it, along with whatever subtle bugs it may (or may not) contain. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: akpm@linux-foundation.org Cc: mathieu.desnoyers@polymtl.ca Cc: josht@linux.vnet.ibm.com Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org LKML-Reference: <125097461396-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/RCU/whatisRCU.txt')
-rw-r--r--Documentation/RCU/whatisRCU.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 97ded2432c5..e41a7fecf0d 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -136,10 +136,10 @@ rcu_read_lock()
Used by a reader to inform the reclaimer that the reader is
entering an RCU read-side critical section. It is illegal
to block while in an RCU read-side critical section, though
- kernels built with CONFIG_PREEMPT_RCU can preempt RCU read-side
- critical sections. Any RCU-protected data structure accessed
- during an RCU read-side critical section is guaranteed to remain
- unreclaimed for the full duration of that critical section.
+ kernels built with CONFIG_TREE_PREEMPT_RCU can preempt RCU
+ read-side critical sections. Any RCU-protected data structure
+ accessed during an RCU read-side critical section is guaranteed to
+ remain unreclaimed for the full duration of that critical section.
Reference counts may be used in conjunction with RCU to maintain
longer-term references to data structures.