lkml.org 
[lkml]   [2021]   [Nov]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC 10/12] io_uring: opcode independent fixed buf import
Date
Extract an opcode independent helper from io_import_fixed for
initialising an iov_iter with a fixed buffer with

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/io_uring.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index e1360fde95d3..bb991f4cee7b 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3152,11 +3152,11 @@ static void kiocb_done(struct io_kiocb *req, ssize_t ret,
}
}

-static int __io_import_fixed(struct io_kiocb *req, int rw, struct iov_iter *iter,
- struct io_mapped_ubuf *imu)
+static int __io_import_fixed(int rw, struct iov_iter *iter,
+ struct io_mapped_ubuf *imu,
+ u64 buf_addr, size_t len)
{
- size_t len = req->rw.len;
- u64 buf_end, buf_addr = req->rw.addr;
+ u64 buf_end;
size_t offset;

if (unlikely(check_add_overflow(buf_addr, (u64)len, &buf_end)))
@@ -3225,7 +3225,7 @@ static int io_import_fixed(struct io_kiocb *req, int rw, struct iov_iter *iter)
imu = READ_ONCE(ctx->user_bufs[index]);
req->imu = imu;
}
- return __io_import_fixed(req, rw, iter, imu);
+ return __io_import_fixed(rw, iter, imu, req->rw.addr, req->rw.len);
}

static void io_ring_submit_unlock(struct io_ring_ctx *ctx, bool needs_lock)
--
2.34.0
\
 
 \ /
  Last update: 2021-11-30 16:25    [W:0.303 / U:1.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site