On 4/22/25 23:26, Christoph Hellwig wrote: > Add a helper to perform synchronous I/O on a kernel direct map range. > Currently this is implemented in various places in usually not very > efficient ways, so provide a generic helper instead. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > --- > block/bio.c | 30 ++++++++++++++++++++++++++++++ > include/linux/bio.h | 5 ++++- > 2 files changed, 34 insertions(+), 1 deletion(-) > > diff --git a/block/bio.c b/block/bio.c > index 4e6c85a33d74..a6a867a432cf 100644 > --- a/block/bio.c > +++ b/block/bio.c > @@ -1301,6 +1301,36 @@ int submit_bio_wait(struct bio *bio) > } > EXPORT_SYMBOL(submit_bio_wait); > > +/** > + * bdev_rw_virt - synchronously read into / write from kernel mapping > + * @bdev: block device to access > + * @sector: sector to accasse s/accasse/access > + * @data: data to read/write > + * @len: length to read/write Maybe "length in bytes to read/write", to avoid any confusion with sector unit. With that, feel free to add: Reviewed-by: Damien Le Moal <dlemoal@xxxxxxxxxx> -- Damien Le Moal Western Digital Research
