[PATCH v4 11/33] fs: Add a function to set the filesystem type

Simon Glass
2022-03-06T12:53:02Z

When sandbox is used with hostfs we won't have a block device, but still
must set up the filesystem type before any filesystem operation, such as
loading a file. Add a function to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v4:
- Add new patch with a function to set the filesystem type

fs/fs.c | 5 +++++
include/fs.h | 11 +++++++++++
2 files changed, 16 insertions(+)

diff --git a/fs/fs.c b/fs/fs.c
index 023f89cafe..611abd083c 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -34,6 +34,11 @@ static int fs_dev_part;
static struct disk_partition fs_partition;
static int fs_type = FS_TYPE_ANY;

+void fs_set_type(int type)
+{
+ fs_type = type;
+}
+
static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc,
struct disk_partition *fs_partition)
{
diff --git a/include/fs.h b/include/fs.h
index c8df3886ac..27b10134a5 100644
--- a/include/fs.h
+++ b/include/fs.h
@@ -55,6 +55,17 @@ int do_ext2load(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
*/
int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype);

+/**
+ * fs_set_type() - Tell fs layer which filesystem type is used
+ *
+ * This is needed when reading from a non-block device such as sandbox. It does
+ * a similar job to fs_set_blk_dev() but just sets the filesystem type instead
+ * of detecting it and loading it on the block device
+ *
+ * @type: Filesystem type to use (FS_TYPE...)
+ */
+void fs_set_type(int type);
+
/*
* fs_set_blk_dev_with_part - Set current block device + partition
*
--
2.35.1.616.g0bdcbb4464-goog