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| author | Yan, Zheng <zheng.z.yan@intel.com> | 2014-03-29 13:41:15 +0800 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2014-04-04 21:08:22 -0700 |
| commit | 54008399dc0ce511a07b87f1af3d1f5c791982a4 (patch) | |
| tree | 6482779b43a6860debd35d11bc9a717efb262e20 /fs/ceph/dir.c | |
| parent | 18cb95af2d7c69aa136ab13f02dd55188c120e75 (diff) | |
| download | blackbird-op-linux-54008399dc0ce511a07b87f1af3d1f5c791982a4.tar.gz blackbird-op-linux-54008399dc0ce511a07b87f1af3d1f5c791982a4.zip | |
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/dir.c')
| -rw-r--r-- | fs/ceph/dir.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index ff2864a36a1c..46cd092cb013 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -252,8 +252,6 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx) int err; u32 ftype; struct ceph_mds_reply_info_parsed *rinfo; - const int max_entries = fsc->mount_options->max_readdir; - const int max_bytes = fsc->mount_options->max_readdir_bytes; dout("readdir %p file %p frag %u off %u\n", inode, file, frag, off); if (fi->flags & CEPH_F_ATEND) @@ -327,6 +325,11 @@ more: req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS); if (IS_ERR(req)) return PTR_ERR(req); + err = ceph_alloc_readdir_reply_buffer(req, inode); + if (err) { + ceph_mdsc_put_request(req); + return err; + } req->r_inode = inode; ihold(inode); req->r_dentry = dget(file->f_dentry); @@ -337,9 +340,6 @@ more: req->r_path2 = kstrdup(fi->last_name, GFP_NOFS); req->r_readdir_offset = fi->next_offset; req->r_args.readdir.frag = cpu_to_le32(frag); - req->r_args.readdir.max_entries = cpu_to_le32(max_entries); - req->r_args.readdir.max_bytes = cpu_to_le32(max_bytes); - req->r_num_caps = max_entries + 1; err = ceph_mdsc_do_request(mdsc, NULL, req); if (err < 0) { ceph_mdsc_put_request(req); |
