xfs: log items should have a xlog pointer, not a mount

Log items belong to the log, not the xfs_mount. Convert the mount
pointer in the log item to a xlog pointer in preparation for
upcoming log centric changes to the log items.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

Author: dgchinner

fs/xfs/xfs_bmap_item.c

@@ -463,7 +463,7 @@ xfs_bui_item_recover(
 	struct xfs_bui_log_item		*buip = BUI_ITEM(lip);
 	struct xfs_trans		*tp;
 	struct xfs_inode		*ip = NULL;
-	struct xfs_mount		*mp = lip->li_mountp;
+	struct xfs_mount		*mp = lip->li_log->l_mp;
 	struct xfs_map_extent		*bmap;
 	struct xfs_bud_log_item		*budp;
 	xfs_filblks_t			count;

fs/xfs/xfs_buf_item.c

@@ -21,6 +21,7 @@
 #include "xfs_dquot.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
+#include "xfs_log_priv.h"
 
 
 struct kmem_cache	*xfs_buf_item_cache;
@@ -428,7 +429,7 @@ xfs_buf_item_format(
 	 * occurs during recovery.
 	 */
 	if (bip->bli_flags & XFS_BLI_INODE_BUF) {
-		if (xfs_has_v3inodes(lip->li_mountp) ||
+		if (xfs_has_v3inodes(lip->li_log->l_mp) ||
 		    !((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
 		      xfs_log_item_in_current_chkpt(lip)))
 			bip->__bli_format.blf_flags |= XFS_BLF_INODE_BUF;
@@ -616,7 +617,7 @@ xfs_buf_item_put(
 	 * that case, the bli is freed on buffer writeback completion.
 	 */
 	aborted = test_bit(XFS_LI_ABORTED, &lip->li_flags) ||
-		  xfs_is_shutdown(lip->li_mountp);
+			xlog_is_shutdown(lip->li_log);
 	dirty = bip->bli_flags & XFS_BLI_DIRTY;
 	if (dirty && !aborted)
 		return false;

fs/xfs/xfs_extfree_item.c

@@ -604,7 +604,7 @@ xfs_efi_item_recover(
 	struct list_head		*capture_list)
 {
 	struct xfs_efi_log_item		*efip = EFI_ITEM(lip);
-	struct xfs_mount		*mp = lip->li_mountp;
+	struct xfs_mount		*mp = lip->li_log->l_mp;
 	struct xfs_efd_log_item		*efdp;
 	struct xfs_trans		*tp;
 	struct xfs_extent		*extp;

fs/xfs/xfs_log.c

@@ -1101,7 +1101,7 @@ xfs_log_item_init(
 	int			type,
 	const struct xfs_item_ops *ops)
 {
-	item->li_mountp = mp;
+	item->li_log = mp->m_log;
 	item->li_ailp = mp->m_ail;
 	item->li_type = type;
 	item->li_ops = ops;

fs/xfs/xfs_log_cil.c

@@ -1484,7 +1484,7 @@ bool
 xfs_log_item_in_current_chkpt(
 	struct xfs_log_item	*lip)
 {
-	struct xfs_cil		*cil = lip->li_mountp->m_log->l_cilp;
+	struct xfs_cil		*cil = lip->li_log->l_cilp;
 
 	if (list_empty(&lip->li_cil))
 		return false;

fs/xfs/xfs_refcount_item.c

@@ -457,7 +457,7 @@ xfs_cui_item_recover(
 	struct xfs_cud_log_item		*cudp;
 	struct xfs_trans		*tp;
 	struct xfs_btree_cur		*rcur = NULL;
-	struct xfs_mount		*mp = lip->li_mountp;
+	struct xfs_mount		*mp = lip->li_log->l_mp;
 	xfs_fsblock_t			new_fsb;
 	xfs_extlen_t			new_len;
 	unsigned int			refc_type;

fs/xfs/xfs_rmap_item.c

@@ -510,7 +510,7 @@ xfs_rui_item_recover(
 	struct xfs_rud_log_item		*rudp;
 	struct xfs_trans		*tp;
 	struct xfs_btree_cur		*rcur = NULL;
-	struct xfs_mount		*mp = lip->li_mountp;
+	struct xfs_mount		*mp = lip->li_log->l_mp;
 	enum xfs_rmap_intent_type	type;
 	xfs_exntst_t			state;
 	int				i;

fs/xfs/xfs_trace.h

@@ -1308,7 +1308,7 @@ DECLARE_EVENT_CLASS(xfs_log_item_class,
 		__field(xfs_lsn_t, lsn)
 	),
 	TP_fast_assign(
-		__entry->dev = lip->li_mountp->m_super->s_dev;
+		__entry->dev = lip->li_log->l_mp->m_super->s_dev;
 		__entry->lip = lip;
 		__entry->type = lip->li_type;
 		__entry->flags = lip->li_flags;
@@ -1361,7 +1361,7 @@ DECLARE_EVENT_CLASS(xfs_ail_class,
 		__field(xfs_lsn_t, new_lsn)
 	),
 	TP_fast_assign(
-		__entry->dev = lip->li_mountp->m_super->s_dev;
+		__entry->dev = lip->li_log->l_mp->m_super->s_dev;
 		__entry->lip = lip;
 		__entry->type = lip->li_type;
 		__entry->flags = lip->li_flags;

fs/xfs/xfs_trans.c

@@ -648,7 +648,7 @@ xfs_trans_add_item(
 	struct xfs_trans	*tp,
 	struct xfs_log_item	*lip)
 {
-	ASSERT(lip->li_mountp == tp->t_mountp);
+	ASSERT(lip->li_log == tp->t_mountp->m_log);
 	ASSERT(lip->li_ailp == tp->t_mountp->m_ail);
 	ASSERT(list_empty(&lip->li_trans));
 	ASSERT(!test_bit(XFS_LI_DIRTY, &lip->li_flags));

fs/xfs/xfs_trans.h

@@ -8,6 +8,7 @@
 
 /* kernel only transaction subsystem defines */
 
+struct xlog;
 struct xfs_buf;
 struct xfs_buftarg;
 struct xfs_efd_log_item;
@@ -31,7 +32,7 @@ struct xfs_log_item {
 	struct list_head		li_ail;		/* AIL pointers */
 	struct list_head		li_trans;	/* transaction list */
 	xfs_lsn_t			li_lsn;		/* last on-disk lsn */
-	struct xfs_mount		*li_mountp;	/* ptr to fs mount */
+	struct xlog			*li_log;
 	struct xfs_ail			*li_ailp;	/* ptr to AIL */
 	uint				li_type;	/* item type */
 	unsigned long			li_flags;	/* misc flags */