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malloc: Use __get_nprocs on arena_get2 (BZ 30945)
This restore the 2.33 semantic for arena_get2. It was changed by11a02b035b
to avoid arena_get2 call malloc (back when __get_nproc was refactored to use an scratch_buffer -903bc7dcc2
). The __get_nproc was refactored over then and now it also avoid to call malloc. The11a02b035b
did not take in consideration any performance implication, which should have been discussed properly. The __get_nprocs_sched is still used as a fallback mechanism if procfs and sysfs is not acessible. Checked on x86_64-linux-gnu. Reviewed-by: DJ Delorie <dj@redhat.com>
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@@ -824,7 +824,7 @@ arena_get2 (size_t size, mstate avoid_arena)
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narenas_limit = mp_.arena_max;
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else if (narenas > mp_.arena_test)
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{
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int n = __get_nprocs_sched ();
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int n = __get_nprocs ();
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if (n >= 1)
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narenas_limit = NARENAS_FROM_NCORES (n);
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