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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-04-04 23:12:29 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:39:45 -0400 |
| commit | 62a8067a7f35dba2de501c9cb00e4cf36da90bc0 (patch) | |
| tree | bb008456891c13b9d8a25825a10074efb861cd88 /include/linux/blk_types.h | |
| parent | optimize copy_page_{to,from}_iter() (diff) | |
| download | linux-dev-62a8067a7f35dba2de501c9cb00e4cf36da90bc0.tar.xz linux-dev-62a8067a7f35dba2de501c9cb00e4cf36da90bc0.zip | |
bio_vec-backed iov_iter
New variant of iov_iter - ITER_BVEC in iter->type, backed with
bio_vec array instead of iovec one. Primitives taught to deal
with such beasts, __swap_write() switched to using that kind
of iov_iter.
Note that bio_vec is just a <page, offset, length> triple - there's
nothing block-specific about it. I've left the definition where it
was, but took it from under ifdef CONFIG_BLOCK.
Next target: ->splice_write()...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/blk_types.h')
| -rw-r--r-- | include/linux/blk_types.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index aa0eaa2d0bd8..86df13b97160 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -5,8 +5,6 @@ #ifndef __LINUX_BLK_TYPES_H #define __LINUX_BLK_TYPES_H -#ifdef CONFIG_BLOCK - #include <linux/types.h> struct bio_set; @@ -28,6 +26,8 @@ struct bio_vec { unsigned int bv_offset; }; +#ifdef CONFIG_BLOCK + struct bvec_iter { sector_t bi_sector; /* device address in 512 byte sectors */ |