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Move each SLRU's lwlocks to a separate tranche.

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This makes it significantly easier to identify these lwlocks in
LWLOCK_STATS or Trace_lwlocks output.  It's also arguably better
from a modularity standpoint, since lwlock.c no longer needs to
know anything about the LWLock needs of the higher-level SLRU
facility.

Ildus Kurbangaliev, reviewd by Álvaro Herrera and by me.
This commit is contained in:
Robert Haas
2015-11-12 14:59:09 -05:00
parent c405918858
commit fe702a7b3f
9 changed files with 41 additions and 43 deletions
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2
src/backend/access/transam/commit_ts.c
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@ -478,7 +478,7 @@ CommitTsShmemInit(void)
bool found;
CommitTsCtl->PagePrecedes = CommitTsPagePrecedes;
SimpleLruInit(CommitTsCtl, "CommitTs Ctl", CommitTsShmemBuffers(), 0,
SimpleLruInit(CommitTsCtl, "commit_timestamp", CommitTsShmemBuffers(), 0,
CommitTsControlLock, "pg_commit_ts");
commitTsShared = ShmemInitStruct("CommitTs shared",