88 *
99 *
1010 * IDENTIFICATION
11- * $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.81.2.2 2000/10/04 07:50:00 inoue Exp $
11+ * $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.81.2.3 2000/10/22 20:33:22 tgl Exp $
1212 *
1313 *-------------------------------------------------------------------------
1414 */
@@ -1656,7 +1656,6 @@ ReleaseRelationBuffers(Relation rel)
16561656}
16571657/* Now we can do what we came for */
16581658buf -> flags &= ~(BM_DIRTY |BM_JUST_DIRTIED );
1659- ClearBufferDirtiedByMe (i ,buf );
16601659
16611660/*
16621661 * Release any refcount we may have.
@@ -1680,7 +1679,23 @@ ReleaseRelationBuffers(Relation rel)
16801679 */
16811680BufTableDelete (buf );
16821681}
1682+
1683+ /*
1684+ * Also check to see if BufferDirtiedByMe info for this buffer
1685+ * refers to the target relation, and clear it if so. This is
1686+ * independent of whether the current contents of the buffer
1687+ * belong to the target relation!
1688+ *
1689+ * NOTE: we have no way to clear BufferDirtiedByMe info in other
1690+ * backends, but hopefully there are none with that bit set for
1691+ * this rel, since we hold exclusive lock on this rel.
1692+ */
1693+ if (BufferTagLastDirtied [i - 1 ].relId .relId == relid &&
1694+ (BufferTagLastDirtied [i - 1 ].relId .dbId == MyDatabaseId ||
1695+ BufferTagLastDirtied [i - 1 ].relId .dbId == (Oid )NULL ))
1696+ BufferDirtiedByMe [i - 1 ]= false;
16831697}
1698+
16841699SpinRelease (BufMgrLock );
16851700}
16861701
@@ -1726,7 +1741,6 @@ DropBuffers(Oid dbid)
17261741}
17271742/* Now we can do what we came for */
17281743buf -> flags &= ~(BM_DIRTY |BM_JUST_DIRTIED );
1729- ClearBufferDirtiedByMe (i ,buf );
17301744
17311745/*
17321746 * The thing should be free, if caller has checked that no
@@ -1738,7 +1752,20 @@ DropBuffers(Oid dbid)
17381752 */
17391753BufTableDelete (buf );
17401754}
1755+
1756+ /*
1757+ * Also check to see if BufferDirtiedByMe info for this buffer
1758+ * refers to the target database, and clear it if so. This is
1759+ * independent of whether the current contents of the buffer
1760+ * belong to the target database!
1761+ *
1762+ * (Actually, this is probably unnecessary, since I shouldn't have
1763+ * ever dirtied pages of the target database, but...)
1764+ */
1765+ if (BufferTagLastDirtied [i - 1 ].relId .dbId == dbid )
1766+ BufferDirtiedByMe [i - 1 ]= false;
17411767}
1768+
17421769SpinRelease (BufMgrLock );
17431770}
17441771