On Thu, Sep 03, 2015 at 11:36:26AM -0500, billodo wrote:
> As a part of the work to move xfs global stats from procfs to sysfs,
> this patch creates the symlink from proc/fs/xfs/stat to sys/fs/xfs/stats.
>
> Signed-off-by: Bill O'Donnell <billodo@xxxxxxxxxx>
> ---
> fs/xfs/xfs_stats.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/fs/xfs/xfs_stats.c b/fs/xfs/xfs_stats.c
> index 856cf57..ad435f1 100644
> --- a/fs/xfs/xfs_stats.c
> +++ b/fs/xfs/xfs_stats.c
> @@ -244,9 +244,13 @@ xfs_init_procfs(void)
> if (!proc_mkdir("fs/xfs", NULL))
> goto out;
>
> - if (!proc_create("fs/xfs/stat", 0, NULL,
> - &xfs_stat_proc_fops))
> + if (!proc_symlink("fs/xfs/stat", NULL,
> + "/sys/fs/xfs/stats/stats"))
Uh.... is it actually guaranteed that sysfs is mounted on /sys now?
I sort of recall gregkh grumbling years ago that sysfs can be mounted anywhere,
and that /proc shouldn't hardcode links to it. But that's just handwaving on
my part.
--D
> + {
> + printk(KERN_INFO "failed to created fs/xfs/stat symlink\n");
> goto out_remove_xfs_dir;
> + }
> +
> #ifdef CONFIG_XFS_QUOTA
> if (!proc_create("fs/xfs/xqmstat", 0, NULL,
> &xqmstat_proc_fops))
> --
> 2.4.3
>
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