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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /scripts/atomic/fallbacks/inc_not_zero
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'scripts/atomic/fallbacks/inc_not_zero')
-rwxr-xr-xscripts/atomic/fallbacks/inc_not_zero14
1 files changed, 14 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/inc_not_zero b/scripts/atomic/fallbacks/inc_not_zero
new file mode 100755
index 000000000..50f2d4d48
--- /dev/null
+++ b/scripts/atomic/fallbacks/inc_not_zero
@@ -0,0 +1,14 @@
+cat <<EOF
+/**
+ * ${arch}${atomic}_inc_not_zero - increment unless the number is zero
+ * @v: pointer of type ${atomic}_t
+ *
+ * Atomically increments @v by 1, if @v is non-zero.
+ * Returns true if the increment was done.
+ */
+static __always_inline bool
+${arch}${atomic}_inc_not_zero(${atomic}_t *v)
+{
+ return ${arch}${atomic}_add_unless(v, 1, 0);
+}
+EOF