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linux: disable io_uring on hppa below kernel 6.1.51 (#4224)

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First kernel with support is 6.1, was only fully functional from .51
onwards: https://lore.kernel.org/all/cb912694-b1fe-dbb0-4d8c-d608f3526905@gmx.de/

Co-authored-by: matoro <matoro@users.noreply.github.com>
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matoro 2023-11-15 17:57:06 -05:00 committed by GitHub
parent 35da5ded3b
commit f144429365
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1 changed files with 9 additions and 1 deletions
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10
src/unix/linux.c
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@ -487,8 +487,16 @@ static int uv__use_io_uring(void) {
use = atomic_load_explicit(&use_io_uring, memory_order_relaxed);
if (use == 0) {
use = uv__kernel_version() >=
#if defined(__hppa__)
/* io_uring first supported on parisc in 6.1, functional in .51 */
/* https://lore.kernel.org/all/cb912694-b1fe-dbb0-4d8c-d608f3526905@gmx.de/ */
/* 6.1.51 */ 0x060133
#else
/* Older kernels have a bug where the sqpoll thread uses 100% CPU. */
use = uv__kernel_version() >= /* 5.10.186 */ 0x050ABA ? 1 : -1;
/* 5.10.186 */ 0x050ABA
#endif
? 1 : -1;
/* But users can still enable it if they so desire. */
val = getenv("UV_USE_IO_URING");