[GFS2] Readpages support

This adds readpages support (and also corrects a small bug in
the readpage error path at the same time). Hopefully this will
improve performance by allowing GFS to submit larger lumps of
I/O at a time.

In order to simplify the setting of BH_Boundary, it currently gets
set when we hit the end of a indirect pointer block. There is
always a boundary at this point with the current allocation code.
It doesn't get all the boundaries right though, so there is still
room for improvement in this.

See comments in fs/gfs2/ops_address.c for further information about
readpages with GFS2.

Signed-off-by: Steven Whitehouse

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index d916817fb6e3..87adebea3bc3 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -40,8 +40,7 @@ int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
         uint32_t extlen;
         int error;
 
-        error = gfs2_block_map(ip, blk, &new, &dblock,
-                               &extlen);
+        error = gfs2_extent_map(ip->i_vnode, blk, &new, &dblock, &extlen);
         if (error)
                 return error;
         if (!dblock) {
@@ -378,10 +377,11 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header *head)
         uint32_t hash;
         struct buffer_head *bh;
         int error;
-        
+        int boundary;
+
         lblock = head->lh_blkno;
         gfs2_replay_incr_blk(sdp, &lblock);
-        error = gfs2_block_map(ip, lblock, &new, &dblock, NULL);
+        error = gfs2_block_map(ip->i_vnode, lblock, &new, &dblock, &boundary);
         if (error)
                 return error;
         if (!dblock) {