[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>

2 files changed, 12 insertions, 11 deletions

diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 0d7a62bffeed..591ca6602bfb 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -1319,8 +1319,10 @@ xfs_qm_dqflush_done(
         xfs_dq_logitem_t        *qip)
 {
         xfs_dquot_t             *dqp;
+        struct xfs_ail          *ailp;
 
         dqp = qip->qli_dquot;
+        ailp = qip->qli_item.li_ailp;
 
         /*
          * We only want to pull the item from the AIL if its
@@ -1333,15 +1335,12 @@ xfs_qm_dqflush_done(
         if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
             qip->qli_item.li_lsn == qip->qli_flush_lsn) {
 
-                spin_lock(&dqp->q_mount->m_ail->xa_lock);
-                /*
-                 * xfs_trans_delete_ail() drops the AIL lock.
-                 */
+                /* xfs_trans_ail_delete() drops the AIL lock. */
+                spin_lock(&ailp->xa_lock);
                 if (qip->qli_item.li_lsn == qip->qli_flush_lsn)
-                        xfs_trans_delete_ail(dqp->q_mount,
-                                             (xfs_log_item_t*)qip);
+                        xfs_trans_ail_delete(ailp, (xfs_log_item_t*)qip);
                 else
-                        spin_unlock(&dqp->q_mount->m_ail->xa_lock);
+                        spin_unlock(&ailp->xa_lock);
         }
 
         /*
@@ -1371,7 +1370,7 @@ xfs_dqunlock(
         mutex_unlock(&(dqp->q_qlock));
         if (dqp->q_logitem.qli_dquot == dqp) {
                 /* Once was dqp->q_mount, but might just have been cleared */
-                xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_mountp,
+                xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_ailp,
                                         (xfs_log_item_t*)&(dqp->q_logitem));
         }
 }
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 0e1fa517db09..1728f6a7c4f5 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -553,14 +553,16 @@ xfs_qm_qoffend_logitem_committed(
         xfs_lsn_t lsn)
 {
         xfs_qoff_logitem_t      *qfs;
+        struct xfs_ail          *ailp;
 
         qfs = qfe->qql_start_lip;
-        spin_lock(&qfs->qql_item.li_mountp->m_ail->xa_lock);
+        ailp = qfs->qql_item.li_ailp;
+        spin_lock(&ailp->xa_lock);
         /*
          * Delete the qoff-start logitem from the AIL.
-         * xfs_trans_delete_ail() drops the AIL lock.
+         * xfs_trans_ail_delete() drops the AIL lock.
          */
-        xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs);
+        xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs);
         kmem_free(qfs);
         kmem_free(qfe);
         return (xfs_lsn_t)-1;