From: Mike Christie Date: Sat, 14 Jan 2006 00:05:53 +0000 (-0600) Subject: [SCSI] iscsi: fix 4k stack iscsi setups X-Git-Tag: v2.6.16-rc1~162^2~16 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=55e3299d9eca01fb2351c5d37e222872b7c6e0af;p=linux-2.6-omap-h63xx.git [SCSI] iscsi: fix 4k stack iscsi setups When we run the xmit code from queuecomand the stack trace gets too deep. The patch runs the xmit code from the scsi_host work queue. This fixes 4k stack and xfs support and should fix the st and sg stack usage bugs. Signed-off-by: Alex Aizman Signed-off-by: Dmitry Yusupov Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index e31d350e6b6..4e4b1061a5e 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -525,7 +525,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) __kfifo_put(ctask->r2tqueue, (void*)&r2t, sizeof(void*)); __kfifo_put(conn->writequeue, (void*)&ctask, sizeof(void*)); - schedule_work(&conn->xmitwork); + scsi_queue_work(session->host, &conn->xmitwork); conn->r2t_pdus_cnt++; spin_unlock(&session->lock); @@ -1267,7 +1267,7 @@ iscsi_write_space(struct sock *sk) conn->old_write_space(sk); debug_tcp("iscsi_write_space: cid %d\n", conn->id); clear_bit(SUSPEND_BIT, &conn->suspend_tx); - schedule_work(&conn->xmitwork); + scsi_queue_work(conn->session->host, &conn->xmitwork); } static void @@ -2275,7 +2275,7 @@ iscsi_xmitworker(void *data) */ mutex_lock(&conn->xmitmutex); if (iscsi_data_xmit(conn)) - schedule_work(&conn->xmitwork); + scsi_queue_work(conn->session->host, &conn->xmitwork); mutex_unlock(&conn->xmitmutex); } @@ -2340,15 +2340,7 @@ iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1); spin_unlock(&session->lock); - if (!in_interrupt() && mutex_trylock(&conn->xmitmutex)) { - spin_unlock_irq(host->host_lock); - if (iscsi_data_xmit(conn)) - schedule_work(&conn->xmitwork); - mutex_unlock(&conn->xmitmutex); - spin_lock_irq(host->host_lock); - } else - schedule_work(&conn->xmitwork); - + scsi_queue_work(host, &conn->xmitwork); return 0; reject: @@ -2942,8 +2934,7 @@ iscsi_conn_send_generic(struct iscsi_conn *conn, struct iscsi_hdr *hdr, else __kfifo_put(conn->mgmtqueue, (void*)&mtask, sizeof(void*)); - schedule_work(&conn->xmitwork); - + scsi_queue_work(session->host, &conn->xmitwork); return 0; } diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 45e31635a59..59a1c9d9d3b 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -379,6 +379,7 @@ iscsi_transport_create_session(struct scsi_transport_template *scsit, shost->max_lun = transport->max_lun; shost->max_cmd_len = transport->max_cmd_len; shost->transportt = scsit; + shost->transportt->create_work_queue = 1; if (scsi_add_host(shost, NULL)) goto free_host;