On 7/7/25 18:17, Gao Xiang wrote:
>
>
> 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?
Xiang, I guess it is useful for debug if we can add it, let me figure out
a patch for that?
Thanks,
>
> Thanks,
> Gao Xiang
>
>> Signed-off-by: Chao Yu <c...@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);
>> }
>>
>
>
