forked from Imagelibrary/rtems
0f0db894f7
The FAT32 FS info sector contains hints for the free cluster count and the next free cluster. The previous code read these values during mount and replaced them with invalid values. The shutdown operation updated them with the current values. These values are only hints. Every FAT implementation must cope with arbitrary values. They are intended to speed up certain operations. Now we update the free cluster count and next free culster in the FAT32 FS info sector only during unmount or sync operations and only if the values have changed. This avoids writes to the FS info sector and conforms to the behaviour of Linux and Windows. The application can force an update of these values now with the fsync() and fdatasync() operations. Applications that only read will perform not write operations to the FAT32 FS info sector. The new fat_sync() function performs all non-file specific synchronizations.
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