3 files changed, 32 insertions, 14 deletions

diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 1e6bf3925645..59c1081412ec 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -1272,10 +1272,8 @@ xfs_qm_dqflush(
         dqp->dq_flags &= ~(XFS_DQ_DIRTY);
         mp = dqp->q_mount;
 
-        /* lsn is 64 bits */
-        spin_lock(&mp->m_ail_lock);
-        dqp->q_logitem.qli_flush_lsn = dqp->q_logitem.qli_item.li_lsn;
-        spin_unlock(&mp->m_ail_lock);
+        xfs_trans_ail_copy_lsn(mp->m_ail, &dqp->q_logitem.qli_flush_lsn,
+                                        &dqp->q_logitem.qli_item.li_lsn);
 
         /*
          * Attach an iodone routine so that we can remove this dquot from the
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 4eb629f0513e..2951ffd83066 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2214,9 +2214,9 @@ xfs_ifree_cluster(
                                 iip = (xfs_inode_log_item_t *)lip;
                                 ASSERT(iip->ili_logged == 1);
                                 lip->li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*)) xfs_istale_done;
-                                spin_lock(&mp->m_ail_lock);
-                                iip->ili_flush_lsn = iip->ili_item.li_lsn;
-                                spin_unlock(&mp->m_ail_lock);
+                                xfs_trans_ail_copy_lsn(mp->m_ail,
+                                                        &iip->ili_flush_lsn,
+                                                        &iip->ili_item.li_lsn);
                                 xfs_iflags_set(iip->ili_inode, XFS_ISTALE);
                                 pre_flushed++;
                         }
@@ -2237,9 +2237,8 @@ xfs_ifree_cluster(
                         iip->ili_last_fields = iip->ili_format.ilf_fields;
                         iip->ili_format.ilf_fields = 0;
                         iip->ili_logged = 1;
-                        spin_lock(&mp->m_ail_lock);
-                        iip->ili_flush_lsn = iip->ili_item.li_lsn;
-                        spin_unlock(&mp->m_ail_lock);
+                        xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
+                                                &iip->ili_item.li_lsn);
 
                         xfs_buf_attach_iodone(bp,
                                 (void(*)(xfs_buf_t*,xfs_log_item_t*))
@@ -3476,10 +3475,8 @@ xfs_iflush_int(
                 iip->ili_format.ilf_fields = 0;
                 iip->ili_logged = 1;
 
-                ASSERT(sizeof(xfs_lsn_t) == 8); /* don't lock if it shrinks */
-                spin_lock(&mp->m_ail_lock);
-                iip->ili_flush_lsn = iip->ili_item.li_lsn;
-                spin_unlock(&mp->m_ail_lock);
+                xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
+                                        &iip->ili_item.li_lsn);
 
                 /*
                  * Attach the function xfs_iflush_done to the inode's
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
index aa5853502529..708cff72d209 100644
--- a/fs/xfs/xfs_trans_priv.h
+++ b/fs/xfs/xfs_trans_priv.h
@@ -106,4 +106,27 @@ void	xfsaild_wakeup(struct xfs_ail *, xfs_lsn_t);
 int     xfsaild_start(struct xfs_ail *);
 void    xfsaild_stop(struct xfs_ail *);
 
+#if BITS_PER_LONG != 64
+static inline void
+xfs_trans_ail_copy_lsn(
+        struct xfs_ail  *ailp,
+        xfs_lsn_t       *dst,
+        xfs_lsn_t       *src)
+{
+        ASSERT(sizeof(xfs_lsn_t) == 8); /* don't lock if it shrinks */
+        spin_lock(&ailp->xa_mount->m_ail_lock);
+        *dst = *src;
+        spin_unlock(&ailp->xa_mount->m_ail_lock);
+}
+#else
+static inline void
+xfs_trans_ail_copy_lsn(
+        struct xfs_ail  *ailp,
+        xfs_lsn_t       *dst,
+        xfs_lsn_t       *src)
+{
+        ASSERT(sizeof(xfs_lsn_t) == 8);
+        *dst = *src;
+}
+#endif
 #endif  /* __XFS_TRANS_PRIV_H__ */