[Cluster-devel] [PATCH 02/18] libgfs2: Rework lgfs2_build_jindex()

[Andrew Price <anprice@redhat.com>]

Return the inode instead of freeing it and move the debug printfs out of
libgfs2.

Signed-off-by: Andrew Price <anprice@redhat.com>
---
 gfs2/libgfs2/libgfs2.h    |  2 +-
 gfs2/libgfs2/structures.c | 23 ++++++++---------------
 gfs2/mkfs/main_mkfs.c     | 27 ++++++++++++++++++++++-----
 3 files changed, 31 insertions(+), 21 deletions(-)

diff --git a/gfs2/libgfs2/libgfs2.h b/gfs2/libgfs2/libgfs2.h
index 04e6ec0f..990a9d9e 100644
--- a/gfs2/libgfs2/libgfs2.h
+++ b/gfs2/libgfs2/libgfs2.h
@@ -777,7 +777,7 @@ extern int lgfs2_sb_write(const struct gfs2_sbd *sdp, int fd);
 extern int build_journal(struct gfs2_sbd *sdp, int j,
 			 struct gfs2_inode *jindex);
 extern int build_jindex(struct gfs2_sbd *sdp);
-extern int lgfs2_build_jindex(struct gfs2_inode *master, struct lgfs2_inum *jnls, size_t nmemb);
+extern struct gfs2_inode *lgfs2_build_jindex(struct gfs2_inode *metafs, struct lgfs2_inum *jnls, size_t nmemb);
 extern int build_per_node(struct gfs2_sbd *sdp);
 extern int build_inum(struct gfs2_sbd *sdp);
 extern int build_statfs(struct gfs2_sbd *sdp);
diff --git a/gfs2/libgfs2/structures.c b/gfs2/libgfs2/structures.c
index 95ad3ac9..de36c4e3 100644
--- a/gfs2/libgfs2/structures.c
+++ b/gfs2/libgfs2/structures.c
@@ -251,39 +251,32 @@ int build_journal(struct gfs2_sbd *sdp, int j, struct gfs2_inode *jindex)
  * nmemb: The number of entries in the list (number of journals).
  * Returns 0 on success or non-zero on error with errno set.
  */
-int lgfs2_build_jindex(struct gfs2_inode *master, struct lgfs2_inum *jnls, size_t nmemb)
+struct gfs2_inode *lgfs2_build_jindex(struct gfs2_inode *master, struct lgfs2_inum *jnls, size_t nmemb)
 {
 	char fname[GFS2_FNAMESIZE + 1];
 	struct gfs2_inode *jindex;
-	unsigned j;
-	int ret;
 
 	if (nmemb == 0 || jnls == NULL) {
 		errno = EINVAL;
-		return 1;
+		return NULL;
 	}
 	jindex = createi(master, "jindex", S_IFDIR | 0700, GFS2_DIF_SYSTEM);
 	if (jindex == NULL)
-		return 1;
+		return NULL;
 
 	fname[GFS2_FNAMESIZE] = '\0';
 
-	for (j = 0; j < nmemb; j++) {
+	for (unsigned j = 0; j < nmemb; j++) {
+		int ret;
+
 		snprintf(fname, GFS2_FNAMESIZE, "journal%u", j);
 		ret = dir_add(jindex, fname, strlen(fname), &jnls[j], IF2DT(S_IFREG | 0600));
 		if (ret) {
 			inode_put(&jindex);
-			return 1;
+			return NULL;
 		}
 	}
-
-	if (cfg_debug) {
-		printf("\nJindex:\n");
-		lgfs2_dinode_print(jindex->i_bh->b_data);
-	}
-
-	inode_put(&jindex);
-	return 0;
+	return jindex;
 }
 
 int build_jindex(struct gfs2_sbd *sdp)
diff --git a/gfs2/mkfs/main_mkfs.c b/gfs2/mkfs/main_mkfs.c
index dbee5cab..17284976 100644
--- a/gfs2/mkfs/main_mkfs.c
+++ b/gfs2/mkfs/main_mkfs.c
@@ -941,6 +941,24 @@ static int place_rgrps(struct gfs2_sbd *sdp, lgfs2_rgrps_t rgs, uint64_t *rgaddr
 	return 0;
 }
 
+static int create_jindex(struct gfs2_sbd *sdp, struct mkfs_opts *opts, struct lgfs2_inum *jnls)
+{
+	struct gfs2_inode *jindex;
+
+	jindex = lgfs2_build_jindex(sdp->master_dir, jnls, opts->journals);
+	if (jindex == NULL) {
+		fprintf(stderr, _("Error building '%s': %s\n"), "jindex", strerror(errno));
+		return 1;
+	}
+	if (opts->debug) {
+		printf("Jindex:\n");
+		lgfs2_dinode_print(jindex->i_bh->b_data);
+	}
+	inode_put(&jindex);
+	return 0;
+}
+
+
 /*
  * Find a reasonable journal file size (in blocks) given the number of blocks
  * in the filesystem.  For very small filesystems, it is not reasonable to
@@ -1211,12 +1229,11 @@ int main(int argc, char *argv[])
 	}
 	sbd.sd_meta_dir = sbd.master_dir->i_num;
 
-	error = lgfs2_build_jindex(sbd.master_dir, mkfs_journals, opts.journals);
-	if (error) {
-		fprintf(stderr, _("Error building '%s': %s\n"), "jindex", strerror(errno));
-		exit(EXIT_FAILURE);
-	}
+	error = create_jindex(&sbd, &opts, mkfs_journals);
 	free(mkfs_journals);
+	if (error != 0)
+		exit(1);
+
 	error = build_per_node(&sbd);
 	if (error) {
 		fprintf(stderr, _("Error building '%s': %s\n"), "per_node", strerror(errno));
-- 
2.34.1