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| author | Thomas Munro <tmunro@postgresql.org> | 2018-09-18 22:56:36 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2018-09-18 23:08:56 +1200 |
| commit | 7167fa876e48b79131dbfc09789c92c85026c8bc (patch) | |
| tree | 437ec4232fb5fa8a87f79003eb938e3a9ca8e3a9 /src/backend/access/transam/parallel.c | |
| parent | a552e3bc502ee679b0b8ff19e69b7b69890c0613 (diff) | |
| download | postgresql-7167fa876e48b79131dbfc09789c92c85026c8bc.tar.gz postgresql-7167fa876e48b79131dbfc09789c92c85026c8bc.zip | |
Allow DSM allocation to be interrupted.
Chris Travers reported that the startup process can repeatedly try to
cancel a backend that is in a posix_fallocate()/EINTR loop and cause it
to loop forever. Teach the retry loop to give up if an interrupt is
pending. Don't actually check for interrupts in that loop though,
because a non-local exit would skip some clean-up code in the caller.
Back-patch to 9.4 where DSM was added (and posix_fallocate() was later
back-patched).
Author: Chris Travers
Reviewed-by: Ildar Musin, Murat Kabilov, Oleksii Kliukin
Tested-by: Oleksii Kliukin
Discussion: https://postgr.es/m/CAN-RpxB-oeZve_J3SM_6%3DHXPmvEG%3DHX%2B9V9pi8g2YR7YW0rBBg%40mail.gmail.com
Diffstat (limited to 'src/backend/access/transam/parallel.c')
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