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author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-08-13 13:58:47 -0400 |
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committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-08-13 13:59:18 -0400 |
commit | 8024ff478ba7ef65dfe25594f36a02265faed133 (patch) | |
tree | 4d329632d1db07855d12d7e68237fe7765674108 /src/backend/executor/nodeModifyTable.c | |
parent | 5a6b0f21e67921118dfd290b1d005789ac006fb7 (diff) | |
download | postgresql-8024ff478ba7ef65dfe25594f36a02265faed133.tar.gz postgresql-8024ff478ba7ef65dfe25594f36a02265faed133.zip |
Add RISC-V spinlock support in s_lock.h.
Like the ARM case, just use gcc's __sync_lock_test_and_set();
that will compile into AMOSWAP.W.AQ which does what we need.
At some point it might be worth doing some work on atomic ops
for RISC-V, but this should be enough for a creditable port.
Back-patch to all supported branches, just in case somebody
wants to try them on RISC-V.
Marek Szuba
Discussion: https://postgr.es/m/dea97b6d-f55f-1f6d-9109-504aa7dfa421@gentoo.org
Diffstat (limited to 'src/backend/executor/nodeModifyTable.c')
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