Re: make flock_lock_file_wait static

From: Arjan van de Ven
Date: Mon Jan 10 2005 - 03:41:18 EST


On Mon, 2005-01-10 at 09:19 +0100, Arjan van de Ven wrote:
> On Sun, 2005-01-09 at 17:44 -0500, Trond Myklebust wrote:
> > su den 09.01.2005 Klokka 19:42 (+0000) skreiv Arjan van de Ven:
> > > Hi,
> > >
> > > the patch below makes flock_lock_file_wait static, because it is only used
> > > (once) in fs/locks.c. Making it static allows gcc to generate better code
> > > (partial or entirely inlining it, gcc 3.4 also optimizes the calling
> > > convention for static functions which are guaranteed only local to the file)
> >
> > Veto. That function is also there for those filesystems that need to
> > mirror their locks in the VFS. I believe the GFS people are already
> > using it (they implemented all this anyway), and sooner or later, NFS is
> > going to have to do it too...
>
> before
> # size fs/locks.o
> text data bss dec hex filename
> 14712 48 4 14764 39ac fs/locks.o
>
> after (with static inline)
> # size fs/locks.o
> text data bss dec hex filename
> 14648 48 4 14700 396c fs/locks.o
>
>
> is "sooner or later" and "maybe someone else uses it" worth making
> everyone elses kernel bigger by 500 bytes of code ?

eh 60 not 500; sorry need coffee


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