ubifs-utils: Extract UBI opening/closing/volume_check_empty functions into a new source file

Move UBI opening/closing/volume_check_empty functions into common/super.c.
These functions will be used in fsck.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 0 insertions, 114 deletions

diff --git a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
index 8bff44b..2181595 100644
--- a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
+++ b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
@@ -518,44 +518,6 @@ static long long get_bytes(const char *str)
 	return bytes;
 }
 
-void close_ubi(struct ubifs_info *c)
-{
-	if (c->libubi) {
-		libubi_close(c->libubi);
-		c->libubi = NULL;
-	}
-}
-
-/**
- * open_ubi - open the libubi.
- * @c: the UBIFS file-system description object
- * @node: name of the UBI volume character device to fetch information about
- *
- * This function opens libubi, and initialize device & volume information
- * according to @node. Returns %0 in case of success and %-1 in case of failure.
- */
-int open_ubi(struct ubifs_info *c, const char *node)
-{
-	struct stat st;
-
-	if (stat(node, &st) || !S_ISCHR(st.st_mode))
-		return -1;
-
-	c->libubi = libubi_open();
-	if (!c->libubi)
-		return -1;
-	if (ubi_get_vol_info(c->libubi, node, &c->vi))
-		goto out_err;
-	if (ubi_get_dev_info1(c->libubi, c->vi.dev_num, &c->di))
-		goto out_err;
-
-	return 0;
-
-out_err:
-	close_ubi(c);
-	return -1;
-}
-
 static void select_default_compr(void)
 {
 	if (c->encrypted) {
@@ -2821,82 +2783,6 @@ static int write_orphan_area(void)
 }
 
 /**
- * check_volume_empty - check if the UBI volume is empty.
- * @c: the UBIFS file-system description object
- *
- * This function checks if the UBI volume is empty by looking if its LEBs are
- * mapped or not.
- *
- * Returns %0 in case of success, %1 is the volume is not empty,
- * and a negative error code in case of failure.
- */
-int check_volume_empty(struct ubifs_info *c)
-{
-	int lnum, err;
-
-	for (lnum = 0; lnum < c->vi.rsvd_lebs; lnum++) {
-		err = ubi_is_mapped(c->dev_fd, lnum);
-		if (err < 0)
-			return err;
-		if (err == 1)
-			return 1;
-	}
-	return 0;
-}
-
-/**
- * open_target - open the output target.
- * @c: the UBIFS file-system description object
- *
- * Open the output target. The target can be an UBI volume
- * or a file.
- *
- * Returns %0 in case of success and %-1 in case of failure.
- */
-int open_target(struct ubifs_info *c)
-{
-	if (c->libubi) {
-		c->dev_fd = open(c->dev_name, O_RDWR | O_EXCL);
-
-		if (c->dev_fd == -1)
-			return sys_errmsg("cannot open the UBI volume '%s'",
-					   c->dev_name);
-		if (ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 1)) {
-			close(c->dev_fd);
-			return sys_errmsg("ubi_set_property(set direct_write) failed");
-		}
-	} else {
-		c->dev_fd = open(c->dev_name, O_CREAT | O_RDWR | O_TRUNC,
-			      S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
-		if (c->dev_fd == -1)
-			return sys_errmsg("cannot create output file '%s'",
-					   c->dev_name);
-	}
-	return 0;
-}
-
-
-/**
- * close_target - close the output target.
- * @c: the UBIFS file-system description object
- *
- * Close the output target. If the target was an UBI
- * volume, also close libubi.
- *
- * Returns %0 in case of success and %-1 in case of failure.
- */
-int close_target(struct ubifs_info *c)
-{
-	if (c->dev_fd >= 0) {
-		if (c->libubi && ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 0))
-			return sys_errmsg("ubi_set_property(clear direct_write) failed");
-		if (close(c->dev_fd) == -1)
-			return sys_errmsg("cannot close the target '%s'", c->dev_name);
-	}
-	return 0;
-}
-
-/**
  * init - initialize things.
  */
 static int init(void)