forked from Imagelibrary/rtems
e3972d71ef
On JFFS2 file systems on NOR flash or dataflash that does not have spare area for metadata and thus does not invoke delayed writes, it is possible to put the file system into a state where all blocks have been written to and all files have been deleted from the filesystem. There is a bug in the JFFS2 file system scan routine that detects this situation as a corrupted file system since the scan routine relies on "used" space to discriminate a valid file system when there are blocks that need to be erased. The correct fix would require a partial rewrite of the scan routine, so instead this patch tracks the space marked as obsolete along with space at the end of each block that is otherwise too small to contain a JFFS2 node so that it can me compared with the dirty space. Corrupted data (or otherwise non-JFFS2 blocks) will still cause this check to fail as corrupted data isn't recognized as obsoleted (deleted) nodes.
This directory contains for the "file system" library. All supported file systems live under this tree. Currently the supported file systems in this library are: - IMFS or In Memory File System This is the only root file system on RTEMS at the moment. It supports files, directories, device nodes and mount points. It can also be configured to be the miniIMFS. - TFTP and FTP filesystem are part of the libnetworking library. - DEVFS or Device File system - DOSFS, a FAT 12/16/32 MSDOS compatible file system. - NFS Client, can mount NFS exported file systems. - PIPE, a pipe file system. - RFS, The RTEMS File System. --Chris Johns and Joel Sherrill 17 Feb 2010