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authorAlexei Starovoitov <ast@kernel.org>2026-09-30 09:59:20 +0000
committerKumar Kartikeya Dwivedi <memxor@gmail.com>2026-10-01 18:40:05 +0200
commitaeb709c767aeca996e6011133e4f7bdb2a4af652 (patch)
treec1c2bdbb4b6b7174a5bbe9e4c2c1f1c0204adcb5 /scripts/mkcompile_h
downloadlinux-stable-aeb709c767aeca996e6011133e4f7bdb2a4af652.tar.gz
linux-stable-aeb709c767aeca996e6011133e4f7bdb2a4af652.zip
selftests/bpf: Add a test for objects stuck in free_by_rcu_ttracegrafted
Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'scripts/mkcompile_h')
-rwxr-xr-xscripts/mkcompile_h27
1 files changed, 27 insertions, 0 deletions
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
new file mode 100755
index 000000000..2596f78e5
--- /dev/null
+++ b/scripts/mkcompile_h
@@ -0,0 +1,27 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+UTS_MACHINE=$1
+CC_VERSION="$2"
+LD=$3
+
+if test -z "$KBUILD_BUILD_USER"; then
+ LINUX_COMPILE_BY=$(whoami | sed 's/\\/\\\\/')
+else
+ LINUX_COMPILE_BY=$KBUILD_BUILD_USER
+fi
+if test -z "$KBUILD_BUILD_HOST"; then
+ LINUX_COMPILE_HOST=`uname -n`
+else
+ LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
+fi
+
+LD_VERSION=$(LC_ALL=C $LD -v | head -n1 |
+ sed -e 's/(compatible with [^)]*)//' -e 's/[[:space:]]*$//')
+
+cat <<EOF
+#define UTS_MACHINE "${UTS_MACHINE}"
+#define LINUX_COMPILE_BY "${LINUX_COMPILE_BY}"
+#define LINUX_COMPILE_HOST "${LINUX_COMPILE_HOST}"
+#define LINUX_COMPILER "${CC_VERSION}, ${LD_VERSION}"
+EOF