From: Al Boldi <a1426z@gawab.com>
To: hooanon05@yahoo.co.jp
Subject: Re: [RFC] Union Mount: Readdir approaches
Date: Wed, 12 Sep 2007 13:46:08 +0300
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Cc: bharata@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
       linux-fsdevel@vger.kernel.org, hch@infradead.org,
       Jan Blunck <jblunck@suse.de>,
       "Josef 'Jeff' Sipek" <jsipek@cs.sunysb.edu>
References: <20070907054618.GD1692@in.ibm.com> <200709071454.32451.a1426z@gawab.com> <E1ITdH3-0000sb-N4@jroun>
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hooanon05@yahoo.co.jp wrote:
> But if you really want to read or try it, you can get all source files
> from sourceforge. Read http://aufs.sf.net and try,
> $ cvs -d:pserver:anonymous@aufs.cvs.sourceforge.net:/cvsroot/aufs login
> (CVS password is empty)
> $ cvs -z3 -d:pserver:anonymous@aufs.cvs.sourceforge.net:/cvsroot/aufs co
> aufs

This is way too complicated, but I tried it anyway, only to find it doesn't 
compile:

  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CALL    scripts/checksyscalls.sh
  CHK     include/linux/compile.h
  CC      fs/aufs/dentry.o
fs/aufs/dentry.c:630:1: directives may not be used inside a macro argument
fs/aufs/dentry.c:629:65: unterminated argument list invoking macro "unlikely"
fs/aufs/dentry.c: In function `h_d_revalidate':
fs/aufs/dentry.c:631: `unlikely' undeclared (first use in this function)
fs/aufs/dentry.c:631: (Each undeclared identifier is reported only once
fs/aufs/dentry.c:631: for each function it appears in.)
fs/aufs/dentry.c:635: parse error before ')' token
fs/aufs/dentry.c:571: warning: unused variable `h_plus'
fs/aufs/dentry.c:571: warning: unused variable `is_nfs'
fs/aufs/dentry.c:572: warning: unused variable `p'
fs/aufs/dentry.c:575: warning: unused variable `h_inode'
fs/aufs/dentry.c:575: warning: unused variable `h_cached_inode'
fs/aufs/dentry.c:576: warning: unused variable `h_mode'
fs/aufs/dentry.c:578: warning: unused variable `reval'
fs/aufs/dentry.c:639: label `err' used but not defined
fs/aufs/dentry.c: At top level:
fs/aufs/dentry.c:642: warning: type defaults to `int' in declaration of 
`reval'
fs/aufs/dentry.c:642: warning: initialization makes integer from pointer 
without a cast
fs/aufs/dentry.c:642: warning: data definition has no type or storage class
fs/aufs/dentry.c:643: parse error before "if"
fs/aufs/dentry.c:649: warning: type defaults to `int' in declaration of `err'
fs/aufs/dentry.c:649: `h_dentry' undeclared here (not in a function)
fs/aufs/dentry.c:649: `p' undeclared here (not in a function)
fs/aufs/dentry.c:649: called object is not a function
fs/aufs/dentry.c:649: warning: data definition has no type or storage class
fs/aufs/dentry.c:650: parse error before "if"
fs/aufs/dentry.c:653: warning: type defaults to `int' in declaration of 
`fake_dm_release'
fs/aufs/dentry.c:653: warning: parameter names (without types) in function 
declaration
fs/aufs/dentry.c:653: conflicting types for `fake_dm_release'

...and more...


It would make matters much easier if you could just publish a link to a 
combo-patch against at least the latest stable kernel, like 2.6.22.


Thanks!

--
Al

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