On Wed, Mar 10, 2021 at 07:53:13AM +0300, Sergei Shtepa wrote:
> > Please avoid the overly long line.
> >
> > > + int ret = 0;
> > > +
> > > + if (WARN_ON(!interposer))
> >
> > WARN_ON_ONCE?
>
> This function should be called quite rarely, and the absence of the interposer
> parameter indicates
Thank you, Christoph, for the review.
I will correct all except two points.
The 03/09/2021 20:27, Christoph Hellwig wrote:
> > +static blk_qc_t __submit_bio_interposed(struct bio *bio)
> > +{
> > + struct bio_list bio_list[2] = { };
> > + blk_qc_t ret = BLK_QC_T_NONE;
> > +
> > +
> +static blk_qc_t __submit_bio_interposed(struct bio *bio)
> +{
> + struct bio_list bio_list[2] = { };
> + blk_qc_t ret = BLK_QC_T_NONE;
> +
> + current->bio_list = bio_list;
> + if (likely(bio_queue_enter(bio) == 0)) {
> + struct block_device *bdev = bio->bi_bdev;
> +
blk_interposer allows to intercept bio requests, remap bio
to another devices or add new bios.
Signed-off-by: Sergei Shtepa
---
block/bio.c | 2 +
block/blk-core.c | 36 +++
block/genhd.c | 93 +++
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