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| author | Pavel Shilovsky <pshilovsky@samba.org> | 2014-07-10 11:31:48 +0400 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2014-08-02 01:23:04 -0500 |
| commit | d913ed17f0a7d74e2847695bc920d77a33f2490b (patch) | |
| tree | 2c511ecc0304b341b370834fc989d4b9d3c42d60 /fs/cifs/cifssmb.c | |
| parent | fb8a3e52559ad52829c6838d304f5b75c140b97a (diff) | |
| download | linux-d913ed17f0a7d74e2847695bc920d77a33f2490b.tar.gz linux-d913ed17f0a7d74e2847695bc920d77a33f2490b.tar.bz2 linux-d913ed17f0a7d74e2847695bc920d77a33f2490b.zip | |
CIFS: Optimize cifs_user_read() in a short read case on reconnects
by filling the output buffer with a data got from a partially received
response and requesting the remaining data from the server. This is
suitable for non-signed connections.
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 57d447c56d83..66f65001a6d8 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1561,6 +1561,12 @@ cifs_readv_callback(struct mid_q_entry *mid) case MID_REQUEST_SUBMITTED: case MID_RETRY_NEEDED: rdata->result = -EAGAIN; + if (server->sign && rdata->got_bytes) + /* reset bytes number since we can not check a sign */ + rdata->got_bytes = 0; + /* FIXME: should this be counted toward the initiating task? */ + task_io_account_read(rdata->got_bytes); + cifs_stats_bytes_read(tcon, rdata->got_bytes); break; default: rdata->result = -EIO; |