From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- io_uring/notif.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 io_uring/notif.h (limited to 'io_uring/notif.h') diff --git a/io_uring/notif.h b/io_uring/notif.h new file mode 100644 index 000000000..f3589cfef --- /dev/null +++ b/io_uring/notif.h @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include + +#include "rsrc.h" + +#define IO_NOTIF_UBUF_FLAGS (SKBFL_ZEROCOPY_FRAG | SKBFL_DONT_ORPHAN) +#define IO_NOTIF_SPLICE_BATCH 32 + +struct io_notif_data { + struct file *file; + struct ubuf_info uarg; + + struct io_notif_data *next; + struct io_notif_data *head; + + unsigned account_pages; + bool zc_report; + bool zc_used; + bool zc_copied; +}; + +struct io_kiocb *io_alloc_notif(struct io_ring_ctx *ctx); +void io_tx_ubuf_complete(struct sk_buff *skb, struct ubuf_info *uarg, + bool success); + +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 void io_notif_flush(struct io_kiocb *notif) + __must_hold(¬if->ctx->uring_lock) +{ + struct io_notif_data *nd = io_notif_to_data(notif); + + io_tx_ubuf_complete(NULL, &nd->uarg, true); +} + +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; +} -- cgit v1.3.1