linux-kernel - Re: [RFC] Union Mount: Readdir approaches

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Message-Id: <200709121346.08364.a1426z@gawab.com>
Date:	Wed, 12 Sep 2007 13:46:08 +0300
From:	Al Boldi <a1426z@...ab.com>
To:	hooanon05@...oo.co.jp
Cc:	bharata@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, hch@...radead.org,
	Jan Blunck <jblunck@...e.de>,
	"Josef 'Jeff' Sipek" <jsipek@...sunysb.edu>
Subject: Re: [RFC] Union Mount: Readdir approaches

hooanon05@...oo.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@...s.cvs.sourceforge.net:/cvsroot/aufs login
> (CVS password is empty)
> $ cvs -z3 -d:pserver:anonymous@...s.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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