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| author | Fabio Checconi <fabio@gandalf.sssup.i> | 2008-04-02 14:31:02 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-04-02 15:42:20 +0200 |
| commit | 34e6bbf23c8f43e8713d9bd092680f1660494b4a (patch) | |
| tree | 908e97ac3d43882cb42bf57c41926852d3bc2f6e /include/linux/iocontext.h | |
| parent | 00d61e3e8c12d5f395b167856d2b3c430816afb0 (diff) | |
| download | op-kernel-dev-34e6bbf23c8f43e8713d9bd092680f1660494b4a.zip op-kernel-dev-34e6bbf23c8f43e8713d9bd092680f1660494b4a.tar.gz | |
cfq-iosched: fix rcu freeing of cfq io contexts
SLAB_DESTROY_BY_RCU is not a direct substitute for normal call_rcu()
freeing, since it'll page freeing but NOT object freeing. So change
cfq to do the freeing on its own.
Signed-off-by: Fabio Checconi <fabio@gandalf.sssup.it>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/iocontext.h')
| -rw-r--r-- | include/linux/iocontext.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h index 1b4ccf2..cac4b36 100644 --- a/include/linux/iocontext.h +++ b/include/linux/iocontext.h @@ -2,6 +2,7 @@ #define IOCONTEXT_H #include <linux/radix-tree.h> +#include <linux/rcupdate.h> /* * This is the per-process anticipatory I/O scheduler state. @@ -54,6 +55,8 @@ struct cfq_io_context { void (*dtor)(struct io_context *); /* destructor */ void (*exit)(struct io_context *); /* called on task exit */ + + struct rcu_head rcu_head; }; /* |
