diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 8317b93..959061a 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -29,8 +29,8 @@
 #include "xfs_reflink.h"
 
 
-#define XFS_WRITEIO_ALIGN(mp,off)	(((off) >> mp->m_writeio_log) \
-						<< mp->m_writeio_log)
+#define XFS_ALLOC_ALIGN(mp, off) \
+	(((off) >> mp->m_allocsize_log) << mp->m_allocsize_log)
 
 static int
 xfs_alert_fsblock_zero(
@@ -422,7 +422,7 @@ xfs_iomap_prealloc_size(
 		return 0;
 
 	if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) &&
-	    (XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_writeio_blocks)))
+	    (XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_allocsize_blocks)))
 		return 0;
 
 	/*
@@ -433,7 +433,7 @@ xfs_iomap_prealloc_size(
 	    XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_dalign) ||
 	    !xfs_iext_peek_prev_extent(ifp, icur, &prev) ||
 	    prev.br_startoff + prev.br_blockcount < offset_fsb)
-		return mp->m_writeio_blocks;
+		return mp->m_allocsize_blocks;
 
 	/*
 	 * Determine the initial size of the preallocation. We are beyond the
@@ -526,10 +526,10 @@ xfs_iomap_prealloc_size(
 	while (alloc_blocks && alloc_blocks >= freesp)
 		alloc_blocks >>= 4;
 check_writeio:
-	if (alloc_blocks < mp->m_writeio_blocks)
-		alloc_blocks = mp->m_writeio_blocks;
+	if (alloc_blocks < mp->m_allocsize_blocks)
+		alloc_blocks = mp->m_allocsize_blocks;
 	trace_xfs_iomap_prealloc_size(ip, alloc_blocks, shift,
-				      mp->m_writeio_blocks);
+				      mp->m_allocsize_blocks);
 	return alloc_blocks;
 }
 
@@ -991,7 +991,7 @@ xfs_buffered_write_iomap_begin(
 			xfs_off_t	end_offset;
 			xfs_fileoff_t	p_end_fsb;
 
-			end_offset = XFS_WRITEIO_ALIGN(mp, offset + count - 1);
+			end_offset = XFS_ALLOC_ALIGN(mp, offset + count - 1);
 			p_end_fsb = XFS_B_TO_FSBT(mp, end_offset) +
 					prealloc_blocks;
 
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 271fcbe..382d727 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -514,7 +514,7 @@ xfs_stat_blksize(
 		if (mp->m_swidth)
 			return mp->m_swidth << mp->m_sb.sb_blocklog;
 		if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
-			return 1U << mp->m_writeio_log;
+			return 1U << mp->m_allocsize_log;
 	}
 
 	return PAGE_SIZE;
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 359fcfb..1853797 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -440,13 +440,13 @@ xfs_set_rw_sizes(xfs_mount_t *mp)
 	if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE))
 		writeio_log = XFS_WRITEIO_LOG_LARGE;
 	else
-		writeio_log = mp->m_writeio_log;
+		writeio_log = mp->m_allocsize_log;
 
 	if (sbp->sb_blocklog > writeio_log)
-		mp->m_writeio_log = sbp->sb_blocklog;
+		mp->m_allocsize_log = sbp->sb_blocklog;
 	} else
-		mp->m_writeio_log = writeio_log;
-	mp->m_writeio_blocks = 1 << (mp->m_writeio_log - sbp->sb_blocklog);
+		mp->m_allocsize_log = writeio_log;
+	mp->m_allocsize_blocks = 1 << (mp->m_allocsize_log - sbp->sb_blocklog);
 }
 
 /*
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index fba818d..109081c1 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -98,8 +98,8 @@ typedef struct xfs_mount {
 	xfs_agnumber_t		m_agirotor;	/* last ag dir inode alloced */
 	spinlock_t		m_agirotor_lock;/* .. and lock protecting it */
 	xfs_agnumber_t		m_maxagi;	/* highest inode alloc group */
-	uint			m_writeio_log;	/* min write size log bytes */
-	uint			m_writeio_blocks; /* min write size blocks */
+	uint			m_allocsize_log;/* min write size log bytes */
+	uint			m_allocsize_blocks; /* min write size blocks */
 	struct xfs_da_geometry	*m_dir_geo;	/* directory block geometry */
 	struct xfs_da_geometry	*m_attr_geo;	/* attribute block geometry */
 	struct xlog		*m_log;		/* log specific stuff */
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index a477348..d1a0958 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -405,7 +405,7 @@ xfs_parseargs(
 		}
 
 		mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
-		mp->m_writeio_log = iosizelog;
+		mp->m_allocsize_log = iosizelog;
 	}
 
 	return 0;
@@ -456,7 +456,7 @@ xfs_showargs(
 
 	if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
 		seq_printf(m, ",allocsize=%dk",
-				(int)(1 << mp->m_writeio_log) >> 10);
+				(int)(1 << mp->m_allocsize_log) >> 10);
 
 	if (mp->m_logbufs > 0)
 		seq_printf(m, ",logbufs=%d", mp->m_logbufs);
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 926f4d1..c13bb36 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -725,7 +725,7 @@ TRACE_EVENT(xfs_iomap_prealloc_size,
 		__entry->writeio_blocks = writeio_blocks;
 	),
 	TP_printk("dev %d:%d ino 0x%llx prealloc blocks %llu shift %d "
-		  "m_writeio_blocks %u",
+		  "m_allocsize_blocks %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino,
 		  __entry->blocks, __entry->shift, __entry->writeio_blocks)
 )