[ECOS] NAME_MAX and RAMFS

[Stephen Polkowski]

Hi all,

	I've noticed a problem with the NAME_MAX and the RAMFS filesystem.  My 
problem is with the lenght of a filename.  When you read directory the 
name it is copied from the directory entry.  The amount copied is based 
on NAME_MAX which is set by _POSIX_NAME_MAX.  The default is only 15 
bytes (kind of small).  However, the size of a filename in RAMFS is the 
left over space from a ramfs_dirent.  The default ramfs_dirent is 32. 
The size of a RAMFS dirent is controlled by CYGNUM_RAMFS_DIRENT_SIZE, 
which is user settable.

	Ok, my problem is that the length of a filename is controlled in two 
separate places, namely NAME_MAX and CYGNUM_RAMFS_DIRENT_SIZE. It 
appears that the two different sizes aren't kept in check.  Which of the 
two should control the size of a filename?  Shouldn't the configuration 
tools keep the two values in check?  What do you think?

Steve

-- 
Stephen Polkowski
Centaur Technology
Austin, TX
(512) 418-5730


-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss