[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, 0 insertions, 3 deletions

diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 60bf2563c7b4..5910c7b5c846 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -92,7 +92,6 @@ static void gfs2_put_super(struct super_block *sb)
                 if (error)
                         gfs2_io_error(sdp);
         }
-
         /*  At this point, we're through modifying the disk  */
 
         /*  Release stuff  */
@@ -125,12 +124,10 @@ static void gfs2_put_super(struct super_block *sb)
         gfs2_jindex_free(sdp);
         /*  Take apart glock structures and buffer lists  */
         gfs2_gl_hash_clear(sdp, WAIT);
-
         /*  Unmount the locking protocol  */
         gfs2_lm_unmount(sdp);
 
         /*  At this point, we're through participating in the lockspace  */
-
         gfs2_sys_fs_del(sdp);
         vfree(sdp);
         sb->s_fs_info = NULL;