Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw

Pull GFS2 updates from Steven Whitehouse:
 "This is one of the smallest collections of patches for the merge
  window for some time.  There are some clean ups relating to the
  transaction code and the shrinker, which are mostly in preparation for
  further development, but also make the code much easier to follow in
  these areas.

  There is a patch which allows the use of ->writepages even in the
  default ordered write mode for all writebacks.  This results in
  sending larger i/os to the block layer, and a subsequent increase in
  performance.  It also reduces the number of different i/o paths by
  one.

  There is also a bug fix reinstating the withdraw ack system which
  somehow got lost when the lock modules were merged into GFS2."

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw:
  GFS2: Reinstate withdraw ack system
  GFS2: Get a block reservation before resizing a file
  GFS2: Split glock lru processing into two parts
  GFS2: Use ->writepages for ordered writes
  GFS2: Clean up freeze code
  GFS2: Merge gfs2_attach_bufdata() into trans.c
  GFS2: Copy gfs2_trans_add_bh into new data/meta functions
  GFS2: Split gfs2_trans_add_bh() into two
  GFS2: Merge revoke adding functions
  GFS2: Separate LRU scanning from shrinker

1 files changed, 8 insertions, 9 deletions

diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 30de4f2a2ea9..24f414f0ce61 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -51,7 +51,7 @@ static void gfs2_page_add_databufs(struct gfs2_inode *ip, struct page *page,
 			continue;
 		if (gfs2_is_jdata(ip))
 			set_buffer_uptodate(bh);
-		gfs2_trans_add_bh(ip->i_gl, bh, 0);
+		gfs2_trans_add_data(ip->i_gl, bh);
 	}
 }
 
@@ -230,16 +230,14 @@ out_ignore:
 }
 
 /**
- * gfs2_writeback_writepages - Write a bunch of dirty pages back to disk
+ * gfs2_writepages - Write a bunch of dirty pages back to disk
  * @mapping: The mapping to write
  * @wbc: Write-back control
  *
- * For the data=writeback case we can already ignore buffer heads
- * and write whole extents at once. This is a big reduction in the
- * number of I/O requests we send and the bmap calls we make in this case.
+ * Used for both ordered and writeback modes.
  */
-static int gfs2_writeback_writepages(struct address_space *mapping,
-				     struct writeback_control *wbc)
+static int gfs2_writepages(struct address_space *mapping,
+			   struct writeback_control *wbc)
 {
 	return mpage_writepages(mapping, wbc, gfs2_get_block_noalloc);
 }
@@ -852,7 +850,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
 		goto failed;
 	}
 
-	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+	gfs2_trans_add_meta(ip->i_gl, dibh);
 
 	if (gfs2_is_stuffed(ip))
 		return gfs2_stuffed_write_end(inode, dibh, pos, len, copied, page);
@@ -1102,7 +1100,7 @@ cannot_release:
 
 static const struct address_space_operations gfs2_writeback_aops = {
 	.writepage = gfs2_writeback_writepage,
-	.writepages = gfs2_writeback_writepages,
+	.writepages = gfs2_writepages,
 	.readpage = gfs2_readpage,
 	.readpages = gfs2_readpages,
 	.write_begin = gfs2_write_begin,
@@ -1118,6 +1116,7 @@ static const struct address_space_operations gfs2_writeback_aops = {
 
 static const struct address_space_operations gfs2_ordered_aops = {
 	.writepage = gfs2_ordered_writepage,
+	.writepages = gfs2_writepages,
 	.readpage = gfs2_readpage,
 	.readpages = gfs2_readpages,
 	.write_begin = gfs2_write_begin,