io_uring: define and set show_fdinfo only if procfs is enabled

Follow the pattern used with other *_show_fdinfo functions and only
define and use io_uring_show_fdinfo and its helper functions if
CONFIG_PROC_FS is set.

Fixes: 87ce955b24c9 ("io_uring: add ->show_fdinfo() for the io_uring file descriptor")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index e412a17..05eea06 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -6641,6 +6641,7 @@ out_fput:
        return submitted ? submitted : ret;
 }
 
+#ifdef CONFIG_PROC_FS
 static int io_uring_show_cred(int id, void *p, void *data)
 {
        const struct cred *cred = p;
@@ -6714,6 +6715,7 @@ static void io_uring_show_fdinfo(struct seq_file *m, struct file *f)
                percpu_ref_put(&ctx->refs);
        }
 }
+#endif
 
 static const struct file_operations io_uring_fops = {
        .release        = io_uring_release,
@@ -6725,7 +6727,9 @@ static const struct file_operations io_uring_fops = {
 #endif
        .poll           = io_uring_poll,
        .fasync         = io_uring_fasync,
+#ifdef CONFIG_PROC_FS
        .show_fdinfo    = io_uring_show_fdinfo,
+#endif
 };
 
 static int io_allocate_scq_urings(struct io_ring_ctx *ctx,