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authorYan, Zheng <zheng.z.yan@intel.com>2014-03-29 13:41:15 +0800
committerSage Weil <sage@inktank.com>2014-04-04 21:08:22 -0700
commit54008399dc0ce511a07b87f1af3d1f5c791982a4 (patch)
tree6482779b43a6860debd35d11bc9a717efb262e20 /fs/ceph/mds_client.h
parent18cb95af2d7c69aa136ab13f02dd55188c120e75 (diff)
downloadop-kernel-dev-54008399dc0ce511a07b87f1af3d1f5c791982a4.zip
op-kernel-dev-54008399dc0ce511a07b87f1af3d1f5c791982a4.tar.gz
ceph: preallocate buffer for readdir reply
Preallocate buffer for readdir reply. Limit number of entries in readdir reply according to the buffer size. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Diffstat (limited to 'fs/ceph/mds_client.h')
-rw-r--r--fs/ceph/mds_client.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index 6828891..e90cfcc 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -67,6 +67,7 @@ struct ceph_mds_reply_info_parsed {
/* for readdir results */
struct {
struct ceph_mds_reply_dirfrag *dir_dir;
+ size_t dir_buf_size;
int dir_nr;
char **dir_dname;
u32 *dir_dname_len;
@@ -346,7 +347,8 @@ extern void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc,
struct dentry *dn);
extern void ceph_invalidate_dir_request(struct ceph_mds_request *req);
-
+extern int ceph_alloc_readdir_reply_buffer(struct ceph_mds_request *req,
+ struct inode *dir);
extern struct ceph_mds_request *
ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode);
extern void ceph_mdsc_submit_request(struct ceph_mds_client *mdsc,
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