diff options
Diffstat (limited to 'cpukit/libfs/src/rfs/rtems-rfs-block.c')
| -rw-r--r-- | cpukit/libfs/src/rfs/rtems-rfs-block.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/cpukit/libfs/src/rfs/rtems-rfs-block.c b/cpukit/libfs/src/rfs/rtems-rfs-block.c index 7ebc4d76a6..4ad73b2ee3 100644 --- a/cpukit/libfs/src/rfs/rtems-rfs-block.c +++ b/cpukit/libfs/src/rfs/rtems-rfs-block.c @@ -1,21 +1,13 @@ -/* - * COPYRIGHT (c) 2010 Chris Johns <chrisj@rtems.org> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.com/license/LICENSE. - */ /** * @file * + * @brief RTEMS File Systems Block Routines * @ingroup rtems-rfs - * - * RTEMS File Systems Block Routines. - * + * * These functions manage blocks in the RFS file system. A block is an area of * the media and its size is set for a each specific media. The block size is - * set when the file system is set up and needs to be matched for it to be read - * correctly. + * set when the file system is set up and needs to be matched for it to be + * read correctly. * * Blocks are managed as groups. A block group or "group" is part of the total * number of blocks being managed by the file system and exist to allow @@ -26,12 +18,20 @@ * A group consist of a block bitmap, inodes and data blocks. The first block * of the file system will hold the superblock. The block bitmap is a * collection of blocks that hold a map of bits, one bit per block for each - * block in the group. When a file system is mounted the block bitmaps are read - * and a summary bit map is made. The summary bitmap has a single bit for 32 - * bits in the bitmap and is set when all 32 bits it maps to are set. This + * block in the group. When a file system is mounted the block bitmaps are + * read and a summary bit map is made. The summary bitmap has a single bit for + * 32 bits in the bitmap and is set when all 32 bits it maps to are set. This * speeds up the search for a free block by a factor of 32. */ +/* + * COPYRIGHT (c) 2010 Chris Johns <chrisj@rtems.org> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + */ + #if HAVE_CONFIG_H #include "config.h" #endif |