block: kill merge_bvec_fn() completely

As generic_make_request() is now able to handle arbitrarily sized bios,
it's no longer necessary for each individual block driver to define its
own ->merge_bvec_fn() callback. Remove every invocation completely.

Cc: Jens Axboe <[email protected]>
Cc: Lars Ellenberg <[email protected]>
Cc: [email protected]
Cc: Jiri Kosina <[email protected]>
Cc: Yehuda Sadeh <[email protected]>
Cc: Sage Weil <[email protected]>
Cc: Alex Elder <[email protected]>
Cc: [email protected]
Cc: Alasdair Kergon <[email protected]>
Cc: Mike Snitzer <[email protected]>
Cc: [email protected]
Cc: Neil Brown <[email protected]>
Cc: [email protected]
Cc: Christoph Hellwig <[email protected]>
Cc: "Martin K. Petersen" <[email protected]>
Acked-by: NeilBrown <[email protected]> (for the 'md' bits)
Acked-by: Mike Snitzer <[email protected]>
Signed-off-by: Kent Overstreet <[email protected]>
[dpark: also remove ->merge_bvec_fn() in dm-thin as well as
 dm-era-target, and resolve merge conflicts]
Signed-off-by: Dongsu Park <[email protected]>
Signed-off-by: Ming Lin <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

0 files changed, 0 insertions, 0 deletions