A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-31 04:01:48 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge commit 'v2.6.31-rc6' into core/rcu

Browse source 
Merge reason: the branch was on pre-rc1 .30, update to latest.

Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Ingo Molnar 2009-08-15 18:55:58 +02:00
commit fa08661af8
2538 changed files with 70259 additions and 36388 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Documentation/RCU/rculist_nulls.txt
View file

@ -83,11 +83,12 @@ not detect it missed following items in original chain.
obj = kmem_cache_alloc(...);
lock_chain(); // typically a spin_lock()
obj->key = key;
atomic_inc(&obj->refcnt);
/*
* we need to make sure obj->key is updated before obj->next
* or obj->refcnt
*/
smp_wmb();
atomic_set(&obj->refcnt, 1);
hlist_add_head_rcu(&obj->obj_node, list);
unlock_chain(); // typically a spin_unlock()
@ -159,6 +160,10 @@ out:
obj = kmem_cache_alloc(cachep);
lock_chain(); // typically a spin_lock()
obj->key = key;
/*
* changes to obj->key must be visible before refcnt one
*/
smp_wmb();
atomic_set(&obj->refcnt, 1);
/*
* insert obj in RCU way (readers might be traversing chain)