diff options
Diffstat (limited to 'src/backend/access/transam/multixact.c')
| -rw-r--r-- | src/backend/access/transam/multixact.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/access/transam/multixact.c b/src/backend/access/transam/multixact.c index 5532dc6fc82..424cceb1cf0 100644 --- a/src/backend/access/transam/multixact.c +++ b/src/backend/access/transam/multixact.c @@ -2514,7 +2514,8 @@ DetermineSafeOldestOffset(MultiXactId oldestMXact) */ oldestOffset = find_multixact_start(oldestMXact); /* move back to start of the corresponding segment */ - oldestOffset -= oldestOffset / MULTIXACT_MEMBERS_PER_PAGE * SLRU_PAGES_PER_SEGMENT; + oldestOffset -= oldestOffset % + (MULTIXACT_MEMBERS_PER_PAGE * SLRU_PAGES_PER_SEGMENT); LWLockAcquire(MultiXactGenLock, LW_EXCLUSIVE); /* always leave one segment before the wraparound point */ |