diff options
| author | Philipp Reisner <philipp.reisner@linbit.com> | 2011-11-11 06:31:20 -0500 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-08 10:58:10 -0500 |
| commit | 380207d08e7c4d1b19c0323777278992b4fbf9d6 (patch) | |
| tree | 3a35f3543810eb2a7d87f15dd62a8fe8e13aad76 /include/linux/drbd_limits.h | |
| parent | d10b4ea32bf2b77a3d56a20992cd549978df7b38 (diff) | |
drbd: Load balancing of read requests
New config option for the disk secition "read-balancing", with
the values: prefer-local, prefer-remote, round-robin, when-congested-remote.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'include/linux/drbd_limits.h')
| -rw-r--r-- | include/linux/drbd_limits.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index 6d0a24331ed2..17ef66a5c114 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h | |||
| @@ -161,6 +161,7 @@ | |||
| 161 | #define DRBD_RR_CONFLICT_DEF ASB_DISCONNECT | 161 | #define DRBD_RR_CONFLICT_DEF ASB_DISCONNECT |
| 162 | #define DRBD_ON_NO_DATA_DEF OND_IO_ERROR | 162 | #define DRBD_ON_NO_DATA_DEF OND_IO_ERROR |
| 163 | #define DRBD_ON_CONGESTION_DEF OC_BLOCK | 163 | #define DRBD_ON_CONGESTION_DEF OC_BLOCK |
| 164 | #define DRBD_READ_BALANCING_DEF RB_PREFER_LOCAL | ||
| 164 | 165 | ||
| 165 | #define DRBD_MAX_BIO_BVECS_MIN 0 | 166 | #define DRBD_MAX_BIO_BVECS_MIN 0 |
| 166 | #define DRBD_MAX_BIO_BVECS_MAX 128 | 167 | #define DRBD_MAX_BIO_BVECS_MAX 128 |