fs: fat: support unlink
In this patch, unlink support is added to FAT file system.
A directory can be deleted only if it is empty.
In this implementation, only a directory entry for a short file name
will be removed. So entries for a long file name can and should be
reclaimed with fsck.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/fs/fs.c b/fs/fs.c
index ba9a651..adae98d 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -170,16 +170,17 @@
.read = fat_read_file,
#ifdef CONFIG_FAT_WRITE
.write = file_fat_write,
+ .unlink = fat_unlink,
.mkdir = fat_mkdir,
#else
.write = fs_write_unsupported,
+ .unlink = fs_unlink_unsupported,
.mkdir = fs_mkdir_unsupported,
#endif
.uuid = fs_uuid_unsupported,
.opendir = fat_opendir,
.readdir = fat_readdir,
.closedir = fat_closedir,
- .unlink = fs_unlink_unsupported,
},
#endif
#ifdef CONFIG_FS_EXT4