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From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Subject: [PATCH 4/4] io_uring: allow AT_FDCWD for non-file openat/openat2/statx
Date: Fri,  7 Feb 2020 08:50:39 -0700
Message-ID: <20200207155039.12819-5-axboe@kernel.dk> (raw)
In-Reply-To: <20200207155039.12819-1-axboe@kernel.dk>

Don't just check for dirfd == -1, we should allow AT_FDCWD as well for
relative lookups.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 fs/io_uring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 957de0f99bcd..b35703582086 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4467,7 +4467,7 @@ static int io_req_needs_file(struct io_kiocb *req, int fd)
 {
 	if (!io_op_defs[req->opcode].needs_file)
 		return 0;
-	if (fd == -1 && io_op_defs[req->opcode].fd_non_neg)
+	if ((fd == -1 || fd == AT_FDCWD) && io_op_defs[req->opcode].fd_non_neg)
 		return 0;
 	return 1;
 }
-- 
2.25.0


  parent reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-07 15:50 [PATCHSET 0/4] Allow relative lookups Jens Axboe
2020-02-07 15:50 ` [PATCH 1/4] io_uring: grab owning task fs_struct Jens Axboe
2020-02-07 15:50 ` [PATCH 2/4] io-wq: add support for inheriting ->fs Jens Axboe
2020-02-07 15:50 ` [PATCH 3/4] io_uring: add ->needs_fs to the opcode requirements table Jens Axboe
2020-02-07 15:50 ` Jens Axboe [this message]
2020-02-07 21:56 ` [PATCHSET 0/4] Allow relative lookups Stefan Metzmacher
2020-02-07 22:47   ` Jens Axboe
2020-02-07 22:56     ` Stefan Metzmacher
2020-02-07 23:07       ` Stefan Metzmacher
2020-02-08 20:05       ` Jens Axboe

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