From a08d195b586a217d76b42062f88f375a3eedda4d Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Mon, 11 Sep 2023 13:31:56 -0600
Subject: [PATCH] io_uring/rw: split io_read() into a helper
Add __io_read() which does the grunt of the work, leaving the completion
side to the new io_read(). No functional changes in this patch.
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
io_uring/rw.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/io_uring/rw.c b/io_uring/rw.c
index c8c822fa79805..5c58962d73dac 100644
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -708,7 +708,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
return 0;
}
-int io_read(struct io_kiocb *req, unsigned int issue_flags)
+static int __io_read(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct io_rw_state __s, *s = &__s;
@@ -853,7 +853,18 @@ done:
/* it's faster to check here then delegate to kfree */
if (iovec)
kfree(iovec);
- return kiocb_done(req, ret, issue_flags);
+ return ret;
+}
+
+int io_read(struct io_kiocb *req, unsigned int issue_flags)
+{
+ int ret;
+
+ ret = __io_read(req, issue_flags);
+ if (ret >= 0)
+ return kiocb_done(req, ret, issue_flags);
+
+ return ret;
}
int io_write(struct io_kiocb *req, unsigned int issue_flags)
--
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