On Thu, Feb 02, 2023 at 11:32:28PM +0000, Yosry Ahmed wrote:
> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> index 54c774af6e1c..060079f1e966 100644
> --- a/fs/xfs/xfs_buf.c
> +++ b/fs/xfs/xfs_buf.c
> @@ -286,8 +286,7 @@ xfs_buf_free_pages(
> if (bp->b_pages[i])
> __free_page(bp->b_pages[i]);
> }
> - if (current->reclaim_state)
> - current->reclaim_state->reclaimed_slab += bp->b_page_count;
> + report_freed_pages(bp->b_page_count);
XFS can be built as a module
> +++ b/mm/vmscan.c
> @@ -204,6 +204,19 @@ static void set_task_reclaim_state(struct task_struct *task,
> task->reclaim_state = rs;
> }
>
> +/*
> + * reclaim_report_freed_pages: report pages freed outside of LRU-based reclaim
> + * @pages: number of pages freed
> + *
> + * If the current process is undergoing a reclaim operation,
> + * increment the number of reclaimed pages by @pages.
> + */
> +void report_freed_pages(unsigned long pages)
> +{
> + if (current->reclaim_state)
> + current->reclaim_state->reclaimed += pages;
> +}
> +
report_free_pages is not EXPORT_SYMBOLed
