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net/9p: switch the guts of p9_client_{read,write}() to iov_iter

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... and have get_user_pages_fast() mapping fewer pages than requested
to generate a short read/write.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2015-04-01 19:57:53 -04:00
parent 6e242a1cee
commit 4f3b35c157
4 changed files with 147 additions and 133 deletions
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2
include/net/9p/transport.h
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@@ -61,7 +61,7 @@ struct p9_trans_module {
int (*cancel) (struct p9_client *, struct p9_req_t *req);
int (*cancelled)(struct p9_client *, struct p9_req_t *req);
int (*zc_request)(struct p9_client *, struct p9_req_t *,
char *, char *, int , int, int, int);
struct iov_iter *, struct iov_iter *, int , int, int);
};
void v9fs_register_trans(struct p9_trans_module *m);