On Thu, Sep 20, 2012 at 04:32:25PM -0700, Tejun Heo wrote:
On Mon, Sep 10, 2012 at 05:22:16PM -0700, Kent Overstreet wrote:
quoted
Just a little convenience macro - main reason to add it now is preparing
for immutable bio vecs, it'll reduce the size of the patch that puts
bi_sector/bi_size/bi_idx into a struct bvec_iter.
Signed-off-by: Kent Overstreet <redacted>
CC: Jens Axboe <redacted>
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 6763cdf..92bff0e 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -67,6 +67,7 @@
#define bio_offset(bio) bio_iovec((bio))->bv_offset
#define bio_segments(bio) ((bio)->bi_vcnt - (bio)->bi_idx)
#define bio_sectors(bio) ((bio)->bi_size >> 9)
+#define bio_end(bio) ((bio)->bi_sector + bio_sectors(bio))
Maybe bio_end_sector() is a better name? bio_end() looks a bit too
close to bio_endio().
Bit verbose for my tastes, but I tend to be more terse than most :P I'm
used to bio_end(), but I'll probably change it.