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Commit d409014e authored by Steve French's avatar Steve French
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smb3: increase initial number of credits requested to allow write 



Compared to other clients the Linux smb3 client ramps up
credits very slowly, taking more than 128 operations before a
maximum size write could be sent (since the number of credits
requested is only 2 per small operation, causing the credit
limit to grow very slowly).

This lack of credits initially would impact large i/o performance,
when large i/o is tried early before enough credits are built up.

Signed-off-by: default avatarSteve French <stfrench@gmail.com>
Reviewed-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
parent 290c3982

fs/cifs/smb2pdu.c

+3 −2
Original line number Diff line number Diff line
@@ -990,8 +990,9 @@ SMB2_sess_alloc_buffer(struct SMB2_sess_data *sess_data) 
	req->PreviousSessionId = sess_data->previous_session;



	req->Flags = 0; /* MBZ */

	/* to enable echos and oplocks */

	req->sync_hdr.CreditRequest = cpu_to_le16(3);



	/* enough to enable echos and oplocks and one max size write */

	req->sync_hdr.CreditRequest = cpu_to_le16(130);



	/* only one of SMB2 signing flags may be set in SMB2 request */

	if (server->sign)