summaryrefslogtreecommitdiffstats
path: root/io_uring/notif.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /io_uring/notif.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'io_uring/notif.h')
-rw-r--r--io_uring/notif.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/io_uring/notif.h b/io_uring/notif.h
new file mode 100644
index 000000000..4ae696273
--- /dev/null
+++ b/io_uring/notif.h
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/net.h>
+#include <linux/uio.h>
+#include <net/sock.h>
+#include <linux/nospec.h>
+
+#include "rsrc.h"
+
+#define IO_NOTIF_SPLICE_BATCH 32
+
+struct io_notif_data {
+ struct file *file;
+ struct ubuf_info uarg;
+ unsigned long account_pages;
+ bool zc_report;
+ bool zc_used;
+ bool zc_copied;
+};
+
+void io_notif_flush(struct io_kiocb *notif);
+struct io_kiocb *io_alloc_notif(struct io_ring_ctx *ctx);
+
+static inline struct io_notif_data *io_notif_to_data(struct io_kiocb *notif)
+{
+ return io_kiocb_to_cmd(notif, struct io_notif_data);
+}
+
+static inline int io_notif_account_mem(struct io_kiocb *notif, unsigned len)
+{
+ struct io_ring_ctx *ctx = notif->ctx;
+ struct io_notif_data *nd = io_notif_to_data(notif);
+ unsigned nr_pages = (len >> PAGE_SHIFT) + 2;
+ int ret;
+
+ if (ctx->user) {
+ ret = __io_account_mem(ctx->user, nr_pages);
+ if (ret)
+ return ret;
+ nd->account_pages += nr_pages;
+ }
+ return 0;
+}