[PATCH] erofs: fix to add missing tracepoint in erofs_readahead()
Gao Xiang
hsiangkao at linux.alibaba.com
Mon Jul 7 20:17:48 AEST 2025
On 2025/7/7 16:48, Chao Yu wrote:
> Commit 771c994ea51f ("erofs: convert all uncompressed cases to iomap")
> converts to use iomap interface, it removed trace_erofs_readahead()
> tracepoint in the meantime, let's add it back.
>
> Fixes: 771c994ea51f ("erofs: convert all uncompressed cases to iomap")
Thanks Chao, btw, should we add tracepoint to erofs_read_folio() too?
Thanks,
Gao Xiang
> Signed-off-by: Chao Yu <chao at kernel.org>
> ---
> fs/erofs/data.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/fs/erofs/data.c b/fs/erofs/data.c
> index 6a329c329f43..534ac359976e 100644
> --- a/fs/erofs/data.c
> +++ b/fs/erofs/data.c
> @@ -356,6 +356,9 @@ static int erofs_read_folio(struct file *file, struct folio *folio)
>
> static void erofs_readahead(struct readahead_control *rac)
> {
> + trace_erofs_readahead(rac->mapping->host, readahead_index(rac),
> + readahead_count(rac), true);
> +
> return iomap_readahead(rac, &erofs_iomap_ops);
> }
>
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