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authorJens Axboe <axboe@kernel.dk>2024-08-12 09:25:36 -0600
committerJens Axboe <axboe@kernel.dk>2024-08-29 08:44:42 -0600
commit2c8fa70bf3e981193ecda0eedf2100f933ef7085 (patch)
tree7885bd00d47328f81951f225eed52bd596f78a4a /io_uring
parentecd5c9b29643f383d39320e30d21b8615bd893da (diff)
io_uring/kbuf: move io_ring_head_to_buf() to kbuf.h
In preparation for using this helper in kbuf.h as well, move it there and turn it into a macro. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/kbuf.c6
-rw-r--r--io_uring/kbuf.h3
2 files changed, 3 insertions, 6 deletions
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c
index c69f69807885..297c1d2c3c27 100644
--- a/io_uring/kbuf.c
+++ b/io_uring/kbuf.c
@@ -132,12 +132,6 @@ static int io_provided_buffers_select(struct io_kiocb *req, size_t *len,
return 0;
}
-static struct io_uring_buf *io_ring_head_to_buf(struct io_uring_buf_ring *br,
- __u16 head, __u16 mask)
-{
- return &br->bufs[head & mask];
-}
-
static void __user *io_ring_buffer_select(struct io_kiocb *req, size_t *len,
struct io_buffer_list *bl,
unsigned int issue_flags)
diff --git a/io_uring/kbuf.h b/io_uring/kbuf.h
index 43c7b18244b3..4c34ff3144b9 100644
--- a/io_uring/kbuf.h
+++ b/io_uring/kbuf.h
@@ -121,6 +121,9 @@ static inline bool io_kbuf_recycle(struct io_kiocb *req, unsigned issue_flags)
return false;
}
+/* Mapped buffer ring, return io_uring_buf from head */
+#define io_ring_head_to_buf(br, head, mask) &(br)->bufs[(head) & (mask)]
+
static inline void io_kbuf_commit(struct io_kiocb *req,
struct io_buffer_list *bl, int nr)
{