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author | Ingo Molnar <mingo@kernel.org> | 2019-02-11 14:27:05 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2019-02-11 14:27:05 +0100 |
commit | 41b8687191cfd0326db03b0e82fb09d8c98ca641 (patch) | |
tree | a214babca0a181c67c25a615d608465a5f92f8c4 /scripts/atomic/fallbacks/dec_and_test | |
parent | 49262de2270e09882d7bd8866a691cdd69ab32f6 (diff) | |
parent | bdf37b4dd35d2517cadc10735cd33022da7df133 (diff) |
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/dec_and_test')
-rwxr-xr-x | scripts/atomic/fallbacks/dec_and_test | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/dec_and_test b/scripts/atomic/fallbacks/dec_and_test new file mode 100755 index 000000000000..0ce7103b3df2 --- /dev/null +++ b/scripts/atomic/fallbacks/dec_and_test @@ -0,0 +1,15 @@ +cat <<EOF +/** + * ${atomic}_dec_and_test - decrement and test + * @v: pointer of type ${atomic}_t + * + * Atomically decrements @v by 1 and + * returns true if the result is 0, or false for all other + * cases. + */ +static inline bool +${atomic}_dec_and_test(${atomic}_t *v) +{ + return ${atomic}_dec_return(v) == 0; +} +EOF |