libmount: add MNT_FS_SWAP flag

Signed-off-by: Karel Zak <kzak@redhat.com>

4 files changed, 24 insertions, 11 deletions

diff --git a/shlibs/mount/src/fs.c b/shlibs/mount/src/fs.c
index fad5da890..adf99ca4d 100644
--- a/shlibs/mount/src/fs.c
+++ b/shlibs/mount/src/fs.c
@@ -348,6 +348,8 @@ int __mnt_fs_set_fstype(mnt_fs *fs, char *fstype)
 		fs->flags |= MNT_FS_PSEUDO;
 	else if (mnt_fstype_is_netfs(fs->fstype))
 		fs->flags |= MNT_FS_NET;
+	else if (!strcmp(fs->fstype, "swap"))
+		fs->flags |= MNT_FS_SWAP;
 
 	return 0;
 }
@@ -508,7 +510,7 @@ int mnt_fs_prepend_optstr(mnt_fs *fs, const char *optstr)
 	if (!rc && v)
 		rc = mnt_optstr_prepend_option(&fs->vfs_optstr, v, NULL);
 	if (!rc && f)
-	       rc = mnt_optstr_prepend_option(&fs->fs_optstr, f, NULL);
+		rc = mnt_optstr_prepend_option(&fs->fs_optstr, f, NULL);
 
 	return rc;
 }
@@ -844,11 +846,16 @@ int mnt_fs_print_debug(mnt_fs *fs, FILE *file)
 	fprintf(file, "target: %s\n", mnt_fs_get_target(fs));
 	fprintf(file, "fstype: %s\n", mnt_fs_get_fstype(fs));
 	fprintf(file, "optstr: %s\n", mnt_fs_get_optstr(fs));
-	fprintf(file, "freq:   %d\n", mnt_fs_get_freq(fs));
-	fprintf(file, "pass:   %d\n", mnt_fs_get_passno(fs));
-	fprintf(file, "id:     %d\n", mnt_fs_get_id(fs));
-	fprintf(file, "parent: %d\n", mnt_fs_get_parent_id(fs));
-	fprintf(file, "devno:  %d:%d\n", major(mnt_fs_get_devno(fs)),
-					 minor(mnt_fs_get_devno(fs)));
+	if (mnt_fs_get_freq(fs))
+		fprintf(file, "freq:   %d\n", mnt_fs_get_freq(fs));
+	if (mnt_fs_get_passno(fs))
+		fprintf(file, "pass:   %d\n", mnt_fs_get_passno(fs));
+	if (mnt_fs_get_id(fs))
+		fprintf(file, "id:     %d\n", mnt_fs_get_id(fs));
+	if (mnt_fs_get_parent_id(fs))
+		fprintf(file, "parent: %d\n", mnt_fs_get_parent_id(fs));
+	if (mnt_fs_get_devno(fs))
+		fprintf(file, "devno:  %d:%d\n", major(mnt_fs_get_devno(fs)),
+						 minor(mnt_fs_get_devno(fs)));
 	return 0;
 }
diff --git a/shlibs/mount/src/mountP.h b/shlibs/mount/src/mountP.h
index ee33f7892..f59589577 100644
--- a/shlibs/mount/src/mountP.h
+++ b/shlibs/mount/src/mountP.h
@@ -175,6 +175,7 @@ struct _mnt_fs {
  */
 #define MNT_FS_PSEUDO	(1 << 1) /* pseudo filesystem */
 #define MNT_FS_NET	(1 << 2) /* network filesystem */
+#define MNT_FS_SWAP	(1 << 3) /* swap device */
 
 /*
  * mtab/fstab/mountinfo file
diff --git a/shlibs/mount/src/tab.c b/shlibs/mount/src/tab.c
index d5bde746a..39f7814e4 100644
--- a/shlibs/mount/src/tab.c
+++ b/shlibs/mount/src/tab.c
@@ -449,8 +449,11 @@ mnt_fs *mnt_tab_find_target(mnt_tab *tb, const char *path, int direction)
 	mnt_reset_iter(&itr, direction);
 	while(mnt_tab_next_fs(tb, &itr, &fs) == 0) {
 		char *p;
-		if (!fs->target)
+
+		if (!fs->target || !(fs->flags & MNT_FS_SWAP) ||
+		    (*fs->target == '/' && *(fs->target + 1) == '\0'))
 		       continue;
+
 		p = mnt_resolve_path(fs->target, tb->cache);
 		if (strcmp(cn, p) == 0)
 			return fs;
@@ -546,6 +549,8 @@ mnt_fs *mnt_tab_find_srcpath(mnt_tab *tb, const char *path, int direction)
 	if (ntags <= mnt_tab_get_nents(tb)) {
 		mnt_reset_iter(&itr, direction);
 		while(mnt_tab_next_fs(tb, &itr, &fs) == 0) {
+			if (fs->flags & (MNT_FS_NET | MNT_FS_PSEUDO))
+				continue;
 			p = mnt_fs_get_srcpath(fs);
 			if (p)
 				p = mnt_resolve_path(p, tb->cache);
diff --git a/shlibs/mount/src/tab_parse.c b/shlibs/mount/src/tab_parse.c
index e782b2781..b9063c035 100644
--- a/shlibs/mount/src/tab_parse.c
+++ b/shlibs/mount/src/tab_parse.c
@@ -352,7 +352,7 @@ static int mnt_tab_parse_next(mnt_tab *tb, FILE *f, mnt_fs *fs,
 		s = skip_spaces(buf);
 	} while (*s == '\0' || *s == '#');
 
-	DBG(TAB, mnt_debug_h(tb, "%s:%d: %s", filename, *nlines, s));
+	/*DBG(TAB, mnt_debug_h(tb, "%s:%d: %s", filename, *nlines, s));*/
 
 	if (!tb->fmt)
 		tb->fmt = detect_fmt(s);
@@ -374,13 +374,13 @@ static int mnt_tab_parse_next(mnt_tab *tb, FILE *f, mnt_fs *fs,
 		if (!fs->optstr)
 			return -ENOMEM;
 	}
-
+/*
 	DBG(TAB, mnt_debug_h(tb, "%s:%d: SOURCE:%s, MNTPOINT:%s, TYPE:%s, "
 				  "OPTS:%s, FREQ:%d, PASSNO:%d",
 		filename, *nlines,
 		fs->source, fs->target, fs->fstype,
 		fs->optstr, fs->freq, fs->passno));
-
+*/
 	return 0;
 err:
 	DBG(TAB, mnt_debug_h(tb, "%s:%d: parse error", tb, filename, *nlines));