diff options
| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2018-09-11 15:59:13 +0900 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2018-09-23 21:55:30 +0200 |
| commit | e2519daf5cef63c19ed16ead74e3525f951c24e0 (patch) | |
| tree | c02e9b77cf75ffb9c3c3a00eb28f45e3d21844f4 /fs | |
| parent | 5bc84a13032fb729bd9f5769cca8f587672caa26 (diff) | |
fs: add unlink interface
"unlink" interface is added to file operations.
This is a preparatory change as unlink support for FAT file system
will be added in next patch.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fs.c | 40 |
1 files changed, 40 insertions, 0 deletions
@@ -105,6 +105,11 @@ static inline int fs_opendir_unsupported(const char *filename, return -EACCES; } +static inline int fs_unlink_unsupported(const char *filename) +{ + return -1; +} + static inline int fs_mkdir_unsupported(const char *dirname) { return -1; @@ -147,6 +152,7 @@ struct fstype_info { int (*readdir)(struct fs_dir_stream *dirs, struct fs_dirent **dentp); /* see fs_closedir() */ void (*closedir)(struct fs_dir_stream *dirs); + int (*unlink)(const char *filename); int (*mkdir)(const char *dirname); }; @@ -173,6 +179,7 @@ static struct fstype_info fstypes[] = { .opendir = fat_opendir, .readdir = fat_readdir, .closedir = fat_closedir, + .unlink = fs_unlink_unsupported, }, #endif #ifdef CONFIG_FS_EXT4 @@ -193,6 +200,7 @@ static struct fstype_info fstypes[] = { #endif .uuid = ext4fs_uuid, .opendir = fs_opendir_unsupported, + .unlink = fs_unlink_unsupported, .mkdir = fs_mkdir_unsupported, }, #endif @@ -210,6 +218,7 @@ static struct fstype_info fstypes[] = { .write = fs_write_sandbox, .uuid = fs_uuid_unsupported, .opendir = fs_opendir_unsupported, + .unlink = fs_unlink_unsupported, .mkdir = fs_mkdir_unsupported, }, #endif @@ -227,6 +236,7 @@ static struct fstype_info fstypes[] = { .write = fs_write_unsupported, .uuid = fs_uuid_unsupported, .opendir = fs_opendir_unsupported, + .unlink = fs_unlink_unsupported, .mkdir = fs_mkdir_unsupported, }, #endif @@ -244,6 +254,7 @@ static struct fstype_info fstypes[] = { .write = fs_write_unsupported, .uuid = btrfs_uuid, .opendir = fs_opendir_unsupported, + .unlink = fs_unlink_unsupported, .mkdir = fs_mkdir_unsupported, }, #endif @@ -260,6 +271,7 @@ static struct fstype_info fstypes[] = { .write = fs_write_unsupported, .uuid = fs_uuid_unsupported, .opendir = fs_opendir_unsupported, + .unlink = fs_unlink_unsupported, .mkdir = fs_mkdir_unsupported, }, }; @@ -510,6 +522,19 @@ void fs_closedir(struct fs_dir_stream *dirs) fs_close(); } +int fs_unlink(const char *filename) +{ + int ret; + + struct fstype_info *info = fs_get_info(fs_type); + + ret = info->unlink(filename); + + fs_type = FS_TYPE_ANY; + fs_close(); + + return ret; +} int fs_mkdir(const char *dirname) { @@ -727,6 +752,21 @@ int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return CMD_RET_SUCCESS; } +int do_rm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], + int fstype) +{ + if (argc != 4) + return CMD_RET_USAGE; + + if (fs_set_blk_dev(argv[1], argv[2], fstype)) + return 1; + + if (fs_unlink(argv[3])) + return 1; + + return 0; +} + int do_mkdir(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype) { |