ceph: enable readahead

Initialized bdi->ra_pages to enable readahead.  Use 512KB default.

Signed-off-by: Sage Weil <sage@newdream.net>

2 files changed, 2 insertions, 1 deletions

diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 7f7d4759a44..ab950fce417 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -327,6 +327,7 @@ static int parse_mount_args(struct ceph_client *client,
         args->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */
         args->caps_wanted_delay_min = CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT;
         args->caps_wanted_delay_max = CEPH_CAPS_WANTED_DELAY_MAX_DEFAULT;
+        args->rsize = CEPH_MOUNT_RSIZE_DEFAULT;
         args->snapdir_name = kstrdup(CEPH_SNAPDIRNAME_DEFAULT, GFP_KERNEL);
         args->cap_release_safety = CEPH_CAPS_PER_RELEASE * 4;
         args->max_readdir = 1024;
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 0bbf58ab607..75556e97e86 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -69,7 +69,7 @@ struct ceph_mount_args {
  * defaults
  */
 #define CEPH_MOUNT_TIMEOUT_DEFAULT  60
-#define CEPH_MOUNT_RSIZE_DEFAULT    (128*1024) /* readahead */
+#define CEPH_MOUNT_RSIZE_DEFAULT    (512*1024) /* readahead */
 
 #define CEPH_MSG_MAX_FRONT_LEN  (16*1024*1024)
 #define CEPH_MSG_MAX_DATA_LEN   (16*1024*1024)