Padding is extra space left for the creation ofinodes, which are essentially pointers to files. The filesystem will automatically allocate space for the inodes needed for the files which are put into the filesystem at the time of creation. On NOR devices, padding needs to be added to allow...
JFFS2 depends on mtd to determine the size of the flash device (or flash partition) that it's using. If space is available new files will be written to available sectors. Regards, --Scott Translate 0 Kudos Copy link Reply Community...
Argh. No free space left for GC. nr_erasing_blocks is 0. nr_free_blocks is 0. (erasableempty: yes, erasingempty: yes, erasependinge) Failed to allocate space for wbuf recovery. Data loss ensues. Write of 186 bytes at 0x00e75fbc failed. returned -30, retlen 0 ...
在打开文件、逐层解析文件的路径名时通过访问父目录文件即可得到当前文件的目录项实体jffs2_raw_dirent,进而得到文件的索引结点号ino(path_walk的细节可参见情景分析),然后通过inocache_list哈希表就可以得到其jffs2_inode_cache的指针,然后通过其nodes域得到文件所有数据实体的内核描述符jffs2_raw_node_ref组成的链表...
* <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)* <part-def> := <size>[@<offset>][<name>][<ro-flag>]* <size> := standard linux memsize OR '-' to denote all remaining space* <offset> := partition start offset within the device* <name>...