Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxgrafted

Pull io_uring fixes from Jens Axboe:

 - Fix a task_work add use-after-free with SQPOLL.

   The sqpoll thread could pop and complete the last request while
   io_req_normal_work_add() was still looking at them after the mpscq
   push.

   Use the same approach as DEFER_TASKRUN to protect from that, holding
   an RCU read lock across the add, and have exit wait for an RCU grace
   period for SQPOLL rings as well.

 - CQE32 ring fixes: correct the free entry check for 32b CQEs, zero the
   big_cqe for aux CQEs, and only post the dummy skip CQE on CQE_MIXED
   rings

 - Mark the source filter table as COW when cloning bpf filters, so
   registering another filter on the source doesn't modify the shared
   table in place

 - Initialize the task context before running the BPF loop

 - Requeue zcrx multishot receives stopped by a local resource

 - End a TX_TIMESTAMP multishot cmd when the CQ is full (lollipopkit)

* tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix task_work add use-after-free with SQPOLL
  io_uring/cmd_net: end TX_TIMESTAMP multishot when the CQ is full
  io_uring/zcrx: requeue multishot receives stopped by a local resource
  io_uring: initialize task context before running the BPF loop
  io_uring: zero big_cqe for aux CQEs on CQE32 rings
  io_uring: fix free entry check for 32b CQEs on CQE32 rings
  io_uring: only post the dummy skip CQE on CQE_MIXED rings
  io_uring/bpf_filter: mark source as COW when cloning filters

1 files changed, 93 insertions, 0 deletions

diff --git a/tools/tracing/rtla/Makefile.rtla b/tools/tracing/rtla/Makefile.rtla
new file mode 100644
index 000000000..1743d9182
--- /dev/null
+++ b/tools/tracing/rtla/Makefile.rtla
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+define allow-override
+  $(if $(or $(findstring environment,$(origin $(1))),\
+            $(findstring command line,$(origin $(1)))),,\
+    $(eval $(1) = $(2)))
+endef
+
+# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
+$(call allow-override,CC,$(CROSS_COMPILE)gcc)
+$(call allow-override,AR,$(CROSS_COMPILE)ar)
+$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
+$(call allow-override,PKG_CONFIG,pkg-config)
+$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
+$(call allow-override,LDCONFIG,ldconfig)
+export CC AR STRIP PKG_CONFIG LD_SO_CONF_PATH LDCONFIG
+
+FOPTS		:= -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong	\
+		-fasynchronous-unwind-tables -fstack-clash-protection
+WOPTS		:= -O -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2		\
+		-Wp,-D_GLIBCXX_ASSERTIONS
+
+ifeq ($(CC),clang)
+  FOPTS		:= $(filter-out -flto=auto -ffat-lto-objects, $(FOPTS))
+  WOPTS		:= $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
+endif
+
+CFLAGS		:= -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(WOPTS) $(CFLAGS)
+LDFLAGS		:= -ggdb $(LDFLAGS)
+
+RM		:= rm -rf
+LN		:= ln -s
+INSTALL		:= install
+MKDIR		:= mkdir
+STRIP		:= strip
+BINDIR		:= /usr/bin
+CTAGS		:= ctags
+ETAGS		:= ctags -e
+
+.PHONY: install
+install: doc_install
+	@$(MKDIR) -p $(DESTDIR)$(BINDIR)
+	$(call QUIET_INSTALL,rtla)$(INSTALL) $(RTLA) -m 755 $(DESTDIR)$(BINDIR)
+	@$(STRIP) $(DESTDIR)$(BINDIR)/rtla
+	@test ! -f $(DESTDIR)$(BINDIR)/osnoise || $(RM) $(DESTDIR)$(BINDIR)/osnoise
+	@$(LN) rtla $(DESTDIR)$(BINDIR)/osnoise
+	@test ! -f $(DESTDIR)$(BINDIR)/hwnoise || $(RM) $(DESTDIR)$(BINDIR)/hwnoise
+	@$(LN) -s rtla $(DESTDIR)$(BINDIR)/hwnoise
+	@test ! -f $(DESTDIR)$(BINDIR)/timerlat || $(RM) $(DESTDIR)$(BINDIR)/timerlat
+	@$(LN) -s rtla $(DESTDIR)$(BINDIR)/timerlat
+
+.PHONY: tags
+tags:
+	$(CTAGS) -R --extras=+f --c-kinds=+p src
+
+.PHONY: TAGS
+TAGS:
+	$(ETAGS) -R --extras=+f --c-kinds=+p src
+
+.PHONY: tags_clean
+tags_clean:
+	$(RM) tags TAGS
+
+.PHONY: doc doc_clean doc_install
+doc:
+	$(MAKE) -C $(DOCSRC)
+
+doc_clean:
+	$(MAKE) -C $(DOCSRC) clean
+
+doc_install:
+	$(MAKE) -C $(DOCSRC) install
+
+# This section is necessary to make the rtla tarball
+NAME		:= rtla
+DIRS		:= src
+FILES		:= Makefile README.txt
+CEXT		:= bz2
+TARBALL		:= $(NAME)-$(VERSION).tar.$(CEXT)
+TAROPTS		:= -cvjf $(TARBALL)
+SRCTREE		:=	$(or $(BUILD_SRC),$(CURDIR))
+
+tarball: clean
+	$(RM) $(NAME)-$(VERSION) && $(MKDIR) $(NAME)-$(VERSION)
+	echo $(VERSION) > $(NAME)-$(VERSION)/VERSION
+	cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION)
+	$(MKDIR) $(NAME)-$(VERSION)/Documentation/
+	cp -rp $(SRCTREE)/../../../Documentation/tools/$(NAME)/* $(NAME)-$(VERSION)/Documentation/
+	cp Makefile.standalone $(NAME)-$(VERSION)/Makefile
+	cp Makefile.$(NAME) $(NAME)-$(VERSION)/
+	tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION)
+	$(RM) $(NAME)-$(VERSION)
+.PHONY: tarball