On 31/03/2023 20:13, Song Liu wrote:
On Thu, Mar 30, 2023 at 3:44 AM Johannes Thumshirn <johannes.thumshirn@xxxxxxx> wrote:Check if adding pages to resync bio fails and if bail out. As the comment above suggests this cannot happen, WARN if it actually happens. This way we can mark bio_add_pages as __must_check. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx> --- drivers/md/raid1-10.c | 7 ++++++- drivers/md/raid10.c | 12 ++++++++++-- 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid1-10.c b/drivers/md/raid1-10.c index e61f6cad4e08..c21b6c168751 100644 --- a/drivers/md/raid1-10.c +++ b/drivers/md/raid1-10.c @@ -105,7 +105,12 @@ static void md_bio_reset_resync_pages(struct bio *bio, struct resync_pages *rp, * won't fail because the vec table is big * enough to hold all these pages */We know these won't fail. Shall we just use __bio_add_page?
We could yes, but I kind of like the assert() style warning. But of cause ultimately your call. Byte, Johannes
