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.
-
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