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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 /scripts/atomic/fallbacks/add_unless
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'scripts/atomic/fallbacks/add_unless')
-rwxr-xr-xscripts/atomic/fallbacks/add_unless16
1 files changed, 16 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/add_unless b/scripts/atomic/fallbacks/add_unless
new file mode 100755
index 000000000..9e5159c2c
--- /dev/null
+++ b/scripts/atomic/fallbacks/add_unless
@@ -0,0 +1,16 @@
+cat << EOF
+/**
+ * arch_${atomic}_add_unless - add unless the number is already a given value
+ * @v: pointer of type ${atomic}_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, if @v was not already @u.
+ * Returns true if the addition was done.
+ */
+static __always_inline bool
+arch_${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u)
+{
+ return arch_${atomic}_fetch_add_unless(v, a, u) != u;
+}
+EOF