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| author | Ilya Dryomov <idryomov@gmail.com> | 2019-03-22 22:14:19 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-03-25 22:28:07 +0100 |
| commit | 187df76325af5d9e12ae9daec1510307797e54f0 (patch) | |
| tree | bd3b2b26f3dfaed772ca6a63a632c731abb30979 /net/tipc/udp_media.h | |
| parent | 8c2ffd9174779014c3fe1f96d9dc3641d9175f00 (diff) | |
libceph: fix breakage caused by multipage bvecs
A bvec can now consist of multiple physically contiguous pages.
This means that bvec_iter_advance() can move to a different page while
staying in the same bvec (i.e. ->bi_bvec_done != 0).
The messenger works in terms of segments which can now be defined as
the smaller of a bvec and a page. The "more bytes to process in this
segment" condition holds only if bvec_iter_advance() leaves us in the
same bvec _and_ in the same page. On next bvec (possibly in the same
page) and on next page (possibly in the same bvec) we may need to set
->last_piece.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/tipc/udp_media.h')
0 files changed, 0 insertions, 0 deletions