[XFS] Finish removing the mount pointer from the AIL API

Change all the remaining AIL API functions that are passed struct
xfs_mount pointers to pass pointers directly to the struct xfs_ail being
used. With this conversion, all external access to the AIL is via the
struct xfs_ail. Hence the operation and referencing of the AIL is almost
entirely independent of the xfs_mount that is using it - it is now much
more tightly tied to the log and the items it is tracking in the log than
it is tied to the xfs_mount.

SGI-PV: 988143

SGI-Modid: xfs-linux-melb:xfs-kern:32353a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>

1 files changed, 10 insertions, 25 deletions

diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index dab57374e1f..05a4bdd4be3 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -108,17 +108,12 @@ xfs_efi_item_pin(xfs_efi_log_item_t *efip)
 STATIC void
 xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
 {
-	xfs_mount_t		*mp;
-	struct xfs_ail		*ailp;
+	struct xfs_ail		*ailp = efip->efi_item.li_ailp;
 
-	mp = efip->efi_item.li_mountp;
-	ailp = efip->efi_item.li_ailp;
 	spin_lock(&ailp->xa_lock);
 	if (efip->efi_flags & XFS_EFI_CANCELED) {
-		/*
-		 * xfs_trans_delete_ail() drops the AIL lock.
-		 */
-		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
+		/* xfs_trans_ail_delete() drops the AIL lock. */
+		xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
 		xfs_efi_item_free(efip);
 	} else {
 		efip->efi_flags |= XFS_EFI_COMMITTED;
@@ -136,12 +131,9 @@ xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
 STATIC void
 xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
 {
-	xfs_mount_t		*mp;
-	struct xfs_ail		*ailp;
+	struct xfs_ail		*ailp = efip->efi_item.li_ailp;
 	xfs_log_item_desc_t	*lidp;
 
-	mp = efip->efi_item.li_mountp;
-	ailp = efip->efi_item.li_ailp;
 	spin_lock(&ailp->xa_lock);
 	if (efip->efi_flags & XFS_EFI_CANCELED) {
 		/*
@@ -149,11 +141,9 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
 		 */
 		lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) efip);
 		xfs_trans_free_item(tp, lidp);
-		/*
-		 * pull the item off the AIL.
-		 * xfs_trans_delete_ail() drops the AIL lock.
-		 */
-		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
+
+		/* xfs_trans_ail_delete() drops the AIL lock. */
+		xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
 		xfs_efi_item_free(efip);
 	} else {
 		efip->efi_flags |= XFS_EFI_COMMITTED;
@@ -350,12 +340,9 @@ void
 xfs_efi_release(xfs_efi_log_item_t	*efip,
 		uint			nextents)
 {
-	xfs_mount_t		*mp;
-	struct xfs_ail		*ailp;
+	struct xfs_ail		*ailp = efip->efi_item.li_ailp;
 	int			extents_left;
 
-	mp = efip->efi_item.li_mountp;
-	ailp = efip->efi_item.li_ailp;
 	ASSERT(efip->efi_next_extent > 0);
 	ASSERT(efip->efi_flags & XFS_EFI_COMMITTED);
 
@@ -364,10 +351,8 @@ xfs_efi_release(xfs_efi_log_item_t	*efip,
 	efip->efi_next_extent -= nextents;
 	extents_left = efip->efi_next_extent;
 	if (extents_left == 0) {
-		/*
-		 * xfs_trans_delete_ail() drops the AIL lock.
-		 */
-		xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
+		/* xfs_trans_ail_delete() drops the AIL lock. */
+		xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
 		xfs_efi_item_free(efip);
 	} else {
 		spin_unlock(&ailp->xa_lock);