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ceph: enable readahead

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

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2009-10-16 14:44:35 -07:00
parent 76e3b390d4
commit 8fa9765576
2 changed files with 2 additions and 1 deletions
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1
fs/ceph/super.c
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@ -327,6 +327,7 @@ static int parse_mount_args(struct ceph_client *client,
args->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */ args->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */
args->caps_wanted_delay_min = CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT; args->caps_wanted_delay_min = CEPH_CAPS_WANTED_DELAY_MIN_DEFAULT;
args->caps_wanted_delay_max = CEPH_CAPS_WANTED_DELAY_MAX_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->snapdir_name = kstrdup(CEPH_SNAPDIRNAME_DEFAULT, GFP_KERNEL);
args->cap_release_safety = CEPH_CAPS_PER_RELEASE * 4; args->cap_release_safety = CEPH_CAPS_PER_RELEASE * 4;
args->max_readdir = 1024; args->max_readdir = 1024;

2
fs/ceph/super.h
View File

@ -69,7 +69,7 @@ struct ceph_mount_args {
* defaults * defaults
*/ */
#define CEPH_MOUNT_TIMEOUT_DEFAULT 60 #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_FRONT_LEN (16*1024*1024)
#define CEPH_MSG_MAX_DATA_LEN (16*1024*1024) #define CEPH_MSG_MAX_DATA_LEN (16*1024*1024)