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[V2,0/2] block: add bio_iov_iter_nvecs for figuring out nr_vecs

Message ID 20201203022940.616610-1-ming.lei@redhat.com (mailing list archive)
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Series block: add bio_iov_iter_nvecs for figuring out nr_vecs | expand

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Ming Lei Dec. 3, 2020, 2:29 a.m. UTC 
Hi,

Add add bio_iov_iter_nvecs for figuring out nr_vecs, so that we can
avoid iov_iter_npages() for bvec iter.

V2:
	- split out renaming part into one patch

Ming Lei (2):
  block: add bio_iov_iter_nvecs for figuring out nr_vecs
  block: rename the local variable for holding return value of
    bio_iov_iter_nvecs

 fs/block_dev.c       | 30 +++++++++++++++---------------
 fs/iomap/direct-io.c | 14 +++++++-------
 include/linux/bio.h  | 10 ++++++++++
 3 files changed, 32 insertions(+), 22 deletions(-)

Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: linux-fsdevel@vger.kernel.org