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authorPavel Begunkov <asml.silence@gmail.com>2020-05-26 20:34:06 +0300
committerJens Axboe <axboe@kernel.dk>2020-05-26 13:31:09 -0600
commit0bf0eefdab52d9f9f3a1eeda32a4fc7afe4e9219 (patch)
tree04f53752230c0aa187f04140ee1b1367e85b4da4
parent0451894522108d6c72934aff6ef89023743a9ed4 (diff)
io_uring: get rid of manual punting in io_close
io_close() was punting async manually to skip grabbing files. Use REQ_F_NO_FILE_TABLE instead, and pass it through the generic path with -EAGAIN. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--fs/io_uring.c20
1 files changed, 5 insertions, 15 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 0d98a529a93e..8c7a6e3e7669 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3492,25 +3492,15 @@ static int io_close(struct io_kiocb *req, bool force_nonblock)
req->close.put_file = NULL;
ret = __close_fd_get_file(req->close.fd, &req->close.put_file);
- if (ret < 0) {
- if (ret == -ENOENT)
- ret = -EBADF;
- return ret;
- }
+ if (ret < 0)
+ return (ret == -ENOENT) ? -EBADF : ret;
/* if the file has a flush method, be safe and punt to async */
if (req->close.put_file->f_op->flush && force_nonblock) {
- /* submission ref will be dropped, take it for async */
- refcount_inc(&req->refs);
-
+ /* avoid grabbing files - we don't need the files */
+ req->flags |= REQ_F_NO_FILE_TABLE | REQ_F_MUST_PUNT;
req->work.func = io_close_finish;
- /*
- * Do manual async queue here to avoid grabbing files - we don't
- * need the files, and it'll cause io_close_finish() to close
- * the file again and cause a double CQE entry for this request
- */
- io_queue_async_work(req);
- return 0;
+ return -EAGAIN;
}
/*