summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJustin TerAvest <teravest@google.com>2011-03-08 19:45:00 +0100
committerJens Axboe <jaxboe@fusionio.com>2011-03-08 19:45:00 +0100
commitdf457f845e5449be2e7d96668791f789b3770ac7 (patch)
tree5279d8ad1379ab890a90453d5018bb473c90d7d5
parentdf677140281beb608f6748c341af7612f7bfe7a0 (diff)
downloadlinux-3.10-df457f845e5449be2e7d96668791f789b3770ac7.tar.gz
linux-3.10-df457f845e5449be2e7d96668791f789b3770ac7.tar.bz2
linux-3.10-df457f845e5449be2e7d96668791f789b3770ac7.zip
blk-cgroup: Lower minimum weight from 100 to 10.
We've found that we still get good, useful isolation at weights this low. I'd like to adjust the minimum so that any other changes can take these values into account. Signed-off-by: Justin TerAvest <teravest@google.com> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
-rw-r--r--Documentation/cgroups/blkio-controller.txt2
-rw-r--r--block/blk-cgroup.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/cgroups/blkio-controller.txt b/Documentation/cgroups/blkio-controller.txt
index d915c16df42..465351d4cf8 100644
--- a/Documentation/cgroups/blkio-controller.txt
+++ b/Documentation/cgroups/blkio-controller.txt
@@ -140,7 +140,7 @@ Proportional weight policy files
- Specifies per cgroup weight. This is default weight of the group
on all the devices until and unless overridden by per device rule.
(See blkio.weight_device).
- Currently allowed range of weights is from 100 to 1000.
+ Currently allowed range of weights is from 10 to 1000.
- blkio.weight_device
- One can specify per cgroup per device rules using this interface.
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index ea4861bdd54..57e7234c5ae 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -240,7 +240,7 @@ static inline char *blkg_path(struct blkio_group *blkg) { return NULL; }
#endif
-#define BLKIO_WEIGHT_MIN 100
+#define BLKIO_WEIGHT_MIN 10
#define BLKIO_WEIGHT_MAX 1000
#define BLKIO_WEIGHT_DEFAULT 500