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| author | Ingo Molnar | 2019-02-11 14:27:05 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2019-02-11 14:27:05 +0100 |
| commit | 41b8687191cfd0326db03b0e82fb09d8c98ca641 (patch) | |
| tree | a214babca0a181c67c25a615d608465a5f92f8c4 /scripts/atomic/fallbacks/sub_and_test | |
| parent | futex: Convert futex_pi_state.refcount to refcount_t (diff) | |
| parent | locking/atomics: Fix out-of-tree build (diff) | |
| download | kernel-qcow2-linux-41b8687191cfd0326db03b0e82fb09d8c98ca641.tar.gz kernel-qcow2-linux-41b8687191cfd0326db03b0e82fb09d8c98ca641.tar.xz kernel-qcow2-linux-41b8687191cfd0326db03b0e82fb09d8c98ca641.zip | |
Merge branch 'locking/atomics' into locking/core, to pick up WIP commits
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/atomic/fallbacks/sub_and_test')
| -rwxr-xr-x | scripts/atomic/fallbacks/sub_and_test | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/sub_and_test b/scripts/atomic/fallbacks/sub_and_test new file mode 100755 index 000000000000..289ef17a2d7a --- /dev/null +++ b/scripts/atomic/fallbacks/sub_and_test @@ -0,0 +1,16 @@ +cat <<EOF +/** + * ${atomic}_sub_and_test - subtract value from variable and test result + * @i: integer value to subtract + * @v: pointer of type ${atomic}_t + * + * Atomically subtracts @i from @v and returns + * true if the result is zero, or false for all + * other cases. + */ +static inline bool +${atomic}_sub_and_test(${int} i, ${atomic}_t *v) +{ + return ${atomic}_sub_return(i, v) == 0; +} +EOF |