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Subject[PATCH 4/9 next] fs/io_uring Don't use the return value from import_iovec().
Date

This is the only code that relies on import_iovec() returning
iter.count on success.
This allows a better interface to import_iovec().

Signed-off-by: David Laight <david.laight@aculab.com>
---
fs/io_uring.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 3790c7fe9fee..0df43882e4b3 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2824,7 +2824,7 @@ static ssize_t __io_import_iovec(int rw, struct io_kiocb *req,

ret = import_single_range(rw, buf, sqe_len, *iovec, iter);
*iovec = NULL;
- return ret < 0 ? ret : sqe_len;
+ return ret;
}

if (req->flags & REQ_F_BUFFER_SELECT) {
@@ -2853,7 +2853,7 @@ static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
if (!req->io)
return __io_import_iovec(rw, req, iovec, iter, needs_lock);
*iovec = NULL;
- return iov_iter_count(&req->io->rw.iter);
+ return 0;
}

static inline loff_t *io_kiocb_ppos(struct kiocb *kiocb)
@@ -3123,7 +3123,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
if (ret < 0)
return ret;
iov_count = iov_iter_count(iter);
- io_size = ret;
+ io_size = iov_count;
req->result = io_size;
ret = 0;

@@ -3246,7 +3246,7 @@ static int io_write(struct io_kiocb *req, bool force_nonblock,
if (ret < 0)
return ret;
iov_count = iov_iter_count(iter);
- io_size = ret;
+ io_size = iov_count;
req->result = io_size;

/* Ensure we clear previously set non-block flag */
--
2.25.1
-
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