On Tue, 29 May 2007, Andrew Morton wrote:
> On Tue, 29 May 2007 13:11:07 -0400 (EDT)
> "Robert P. J. Day" <[EMAIL PROTECTED]> wrote:
>
> >
> > Delete the apparently unused array "int dummy[5]" from struct
> > inodes_stat_t.
> >
> > Signed-off-by: Robert P. J. Day <[EMAIL PROTECTED]>
> >
> > ---
> >
> > no idea what that array is for, but no one seems to care about it.
> > removal compile-tested on x86 with "make allyesconfig" and nobody
> > misses it (unless it's used for padding of some kind).
> >
> >
> > diff --git a/include/linux/fs.h b/include/linux/fs.h
> > index 7cf0c54..dec83dd 100644
> > --- a/include/linux/fs.h
> > +++ b/include/linux/fs.h
> > @@ -44,7 +44,6 @@ extern int get_max_files(void);
> > struct inodes_stat_t {
> > int nr_inodes;
> > int nr_unused;
> > - int dummy[5];
> > };
> > extern struct inodes_stat_t inodes_stat;
> >
>
> kernel/sysctl.c:
>
> {
> .ctl_name = FS_STATINODE,
> .procname = "inode-state",
> .data = &inodes_stat,
> .maxlen = 7*sizeof(int),
> .mode = 0444,
> .proc_handler = &proc_dointvec,
> },
>
> akpm:/home/akpm> cat /proc/sys/fs/inode-state
> 608039 178454 0 0 0 0 0
>
> So it _is_ used: to present those five zeroes. I think this is for
> back-compatibility with some cretaceous-era kernel.
ah, gotcha. well, i'll leave this up to someone else to do anything
with if they are so inclined.
rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA
http://fsdev.net/wiki/index.php?title=Main_Page
========================================================================
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