xfs: remove the deprecated nodelaylog option

The delaylog mode has been the default for a long time, and the nodelaylog
option has been scheduled for removal in Linux 3.3.  Remove it and code
only used by it now that we have opened the 3.3 window.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index c7755d5..eb207a9 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -32,10 +32,7 @@
 #include "xfs_discard.h"
 
 /*
- * Perform initial CIL structure initialisation. If the CIL is not
- * enabled in this filesystem, ensure the log->l_cilp is null so
- * we can check this conditional to determine if we are doing delayed
- * logging or not.
+ * Perform initial CIL structure initialisation.
  */
 int
 xlog_cil_init(
@@ -44,10 +41,6 @@
 	struct xfs_cil	*cil;
 	struct xfs_cil_ctx *ctx;
 
-	log->l_cilp = NULL;
-	if (!(log->l_mp->m_flags & XFS_MOUNT_DELAYLOG))
-		return 0;
-
 	cil = kmem_zalloc(sizeof(*cil), KM_SLEEP|KM_MAYFAIL);
 	if (!cil)
 		return ENOMEM;
@@ -80,9 +73,6 @@
 xlog_cil_destroy(
 	struct log	*log)
 {
-	if (!log->l_cilp)
-		return;
-
 	if (log->l_cilp->xc_ctx) {
 		if (log->l_cilp->xc_ctx->ticket)
 			xfs_log_ticket_put(log->l_cilp->xc_ctx->ticket);
@@ -137,9 +127,6 @@
 xlog_cil_init_post_recovery(
 	struct log	*log)
 {
-	if (!log->l_cilp)
-		return;
-
 	log->l_cilp->xc_ctx->ticket = xlog_cil_ticket_alloc(log);
 	log->l_cilp->xc_ctx->sequence = 1;
 	log->l_cilp->xc_ctx->commit_lsn = xlog_assign_lsn(log->l_curr_cycle,
@@ -786,8 +773,6 @@
 {
 	struct xfs_cil_ctx *ctx;
 
-	if (!(lip->li_mountp->m_flags & XFS_MOUNT_DELAYLOG))
-		return false;
 	if (list_empty(&lip->li_cil))
 		return false;