X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=fs%2Fdax.c;h=69216241392f23106e823f8d9d583a9710f4d17f;hb=5a80ee4219a52194f0e815bbceec40eb32c523ec;hp=b3d27fdc67752df52637bccdbde008c0086aa312;hpb=f6e1e1d1e149802ed4062fa514c2d184d30aacdf;p=linux-2.6-microblaze.git

diff --git a/fs/dax.c b/fs/dax.c
index b3d27fdc6775..69216241392f 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -525,7 +525,7 @@ retry:
 		dax_disassociate_entry(entry, mapping, false);
 		xas_store(xas, NULL);	/* undo the PMD join */
 		dax_wake_entry(xas, entry, true);
-		mapping->nrexceptional--;
+		mapping->nrpages -= PG_PMD_NR;
 		entry = NULL;
 		xas_set(xas, index);
 	}
@@ -541,7 +541,7 @@ retry:
 		dax_lock_entry(xas, entry);
 		if (xas_error(xas))
 			goto out_unlock;
-		mapping->nrexceptional++;
+		mapping->nrpages += 1UL << order;
 	}
 
 out_unlock:
@@ -661,7 +661,7 @@ static int __dax_invalidate_entry(struct address_space *mapping,
 		goto out;
 	dax_disassociate_entry(entry, mapping, trunc);
 	xas_store(&xas, NULL);
-	mapping->nrexceptional--;
+	mapping->nrpages -= 1UL << dax_entry_order(entry);
 	ret = 1;
 out:
 	put_unlocked_entry(&xas, entry);
@@ -965,7 +965,7 @@ int dax_writeback_mapping_range(struct address_space *mapping,
 	if (WARN_ON_ONCE(inode->i_blkbits != PAGE_SHIFT))
 		return -EIO;
 
-	if (!mapping->nrexceptional || wbc->sync_mode != WB_SYNC_ALL)
+	if (mapping_empty(mapping) || wbc->sync_mode != WB_SYNC_ALL)
 		return 0;
 
 	trace_dax_writeback_range(inode, xas.xa_index, end_index);