| From: | Thomas Munro <tmunro(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Allow WaitLatch() to be used without a latch. |
| Date: | 2020-09-23 03:41:54 |
| Message-ID: | E1kKvfG-0004I2-MI@gemulon.postgresql.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers |
Allow WaitLatch() to be used without a latch.
Due to flaws in commit 3347c982bab, using WaitLatch() without
WL_LATCH_SET could cause an assertion failure or crash. Repair.
While here, also add a check that the latch we're switching to belongs
to this backend, when changing from one latch to another.
Discussion: https://postgr.es/m/CA%2BhUKGK1607VmtrDUHQXrsooU%3Dap4g4R2yaoByWOOA3m8xevUQ%40mail.gmail.com
Branch
------
master
Details
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https://git.postgresql.org/pg/commitdiff/733fa9aa51c526582f100aa0d375e0eb9a6bce8b
Modified Files
--------------
src/backend/storage/ipc/latch.c | 23 +++++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
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