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| author | Paul E. McKenney <[email protected]> | 2009-08-27 14:58:16 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-08-29 15:34:39 +0200 |
| commit | dd5d19bafd90d33043a4a14b2e2d98612caa293c (patch) | |
| tree | c21d547124d277f00332bdb01c75f2f4f321de8c /drivers/mtd/lpddr/lpddr_cmds.c | |
| parent | 06e799764eb7c2e4640888d438c3524d756613e1 (diff) | |
rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees
When offlining CPUs from a multi-level tree, there is the
possibility of offlining the last CPU from a given node when
there are preempted RCU read-side critical sections that
started life on one of the CPUs on that node.
In this case, the corresponding tasks will be enqueued via the
task_struct's rcu_node_entry list_head onto one of the
rcu_node's blocked_tasks[] lists. These tasks need to be moved
somewhere else so that they will prevent the current grace
period from ending. That somewhere is the root rcu_node.
Signed-off-by: Paul E. McKenney <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/mtd/lpddr/lpddr_cmds.c')
0 files changed, 0 insertions, 0 deletions