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authorVivek Goyal <vgoyal@redhat.com>2009-12-03 20:59:42 +0300
committerJens Axboe <jens.axboe@oracle.com>2009-12-03 21:28:51 +0300
commit31e4c28d95e64f2d5d3c497a3ecf37c62de635b4 (patch)
treeffbb99b2565c4bdd4921fd7077164e7fc295b2bc /include
parent1fa8f6d68b5c8ca0a608fd8d296c5f07ac788cd6 (diff)
downloadlinux-31e4c28d95e64f2d5d3c497a3ecf37c62de635b4.tar.xz
blkio: Introduce blkio controller cgroup interface
o This is basic implementation of blkio controller cgroup interface. This is the common interface visible to user space and should be used by different IO control policies as we implement those. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/cgroup_subsys.h6
-rw-r--r--include/linux/iocontext.h4
2 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index 9c8d31bacf46..ccefff02b6cb 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -60,3 +60,9 @@ SUBSYS(net_cls)
#endif
/* */
+
+#ifdef CONFIG_BLK_CGROUP
+SUBSYS(blkio)
+#endif
+
+/* */
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index eb73632440f1..d61b0b8b5cd1 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -68,6 +68,10 @@ struct io_context {
unsigned short ioprio;
unsigned short ioprio_changed;
+#ifdef CONFIG_BLK_CGROUP
+ unsigned short cgroup_changed;
+#endif
+
/*
* For request batching
*/