gfs2: Split up gfs2_meta_sync into inode and rgrp versions

Before this patch, function gfs2_meta_sync called filemap_fdatawrite to write
the address space for the metadata being synced. That's great for inodes, but
resource groups all point to the same superblock-address space, sdp->sd_aspace.
Each rgrp has its own range of blocks on which it should operate. That meant
every time an rgrp's metadata was synced, it would write all of them instead
of just the range.

This patch eliminates function gfs2_meta_sync and tailors specific metasync
functions for inodes and rgrps.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

1 files changed, 5 insertions, 26 deletions

diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index ed69298dd824..3922b26264f5 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -22,6 +22,7 @@
 #include "incore.h"
 #include "inode.h"
 #include "glock.h"
+#include "glops.h"
 #include "log.h"
 #include "lops.h"
 #include "meta_io.h"
@@ -817,41 +818,19 @@ static int buf_lo_scan_elements(struct gfs2_jdesc *jd, u32 start,
 	return error;
 }
 
-/**
- * gfs2_meta_sync - Sync all buffers associated with a glock
- * @gl: The glock
- *
- */
-
-void gfs2_meta_sync(struct gfs2_glock *gl)
-{
-	struct address_space *mapping = gfs2_glock2aspace(gl);
-	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
-	int error;
-
-	if (mapping == NULL)
-		mapping = &sdp->sd_aspace;
-
-	filemap_fdatawrite(mapping);
-	error = filemap_fdatawait(mapping);
-
-	if (error)
-		gfs2_io_error(gl->gl_name.ln_sbd);
-}
-
 static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
 {
 	struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
 	struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
 
 	if (error) {
-		gfs2_meta_sync(ip->i_gl);
+		gfs2_inode_metasync(ip->i_gl);
 		return;
 	}
 	if (pass != 1)
 		return;
 
-	gfs2_meta_sync(ip->i_gl);
+	gfs2_inode_metasync(ip->i_gl);
 
 	fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n",
 	        jd->jd_jid, jd->jd_replayed_blocks, jd->jd_found_blocks);
@@ -1060,14 +1039,14 @@ static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
 	struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
 
 	if (error) {
-		gfs2_meta_sync(ip->i_gl);
+		gfs2_inode_metasync(ip->i_gl);
 		return;
 	}
 	if (pass != 1)
 		return;
 
 	/* data sync? */
-	gfs2_meta_sync(ip->i_gl);
+	gfs2_inode_metasync(ip->i_gl);
 
 	fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n",
 		jd->jd_jid, jd->jd_replayed_blocks, jd->jd_found_blocks);