diff options
Diffstat (limited to 'src/backend/storage/buffer/bufmgr.c')
| -rw-r--r-- | src/backend/storage/buffer/bufmgr.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index c556c5d91fa..1204bbfb07d 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.198.2.1 2005/11/17 17:42:24 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.198.2.2 2005/11/22 18:23:17 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -86,7 +86,7 @@ static volatile BufferDesc *PinCountWaitBuf = NULL; static bool PinBuffer(volatile BufferDesc *buf); static void PinBuffer_Locked(volatile BufferDesc *buf); static void UnpinBuffer(volatile BufferDesc *buf, - bool fixOwner, bool normalAccess); + bool fixOwner, bool normalAccess); static bool SyncOneBuffer(int buf_id, bool skip_pinned); static void WaitIO(volatile BufferDesc *buf); static bool StartBufferIO(volatile BufferDesc *buf, bool forInput); @@ -178,11 +178,12 @@ ReadBuffer(Relation reln, BlockNumber blockNum) * page but its contents are not yet valid. IO_IN_PROGRESS is set for it, * if it's a shared buffer. * - * Note: if smgrextend fails, we will end up with a buffer that is allocated - * but not marked BM_VALID. P_NEW will still select the same block number - * (because the relation didn't get any longer on disk) and so future - * attempts to extend the relation will find the same buffer (if it's not - * been recycled) but come right back here to try smgrextend again. + * Note: if smgrextend fails, we will end up with a buffer that is + * allocated but not marked BM_VALID. P_NEW will still select the same + * block number (because the relation didn't get any longer on disk) and + * so future attempts to extend the relation will find the same buffer (if + * it's not been recycled) but come right back here to try smgrextend + * again. */ Assert(!(bufHdr->flags & BM_VALID)); /* spinlock not needed */ @@ -982,8 +983,8 @@ SyncOneBuffer(int buf_id, bool skip_pinned) /* * Check whether buffer needs writing. * - * We can make this check without taking the buffer content lock so long as - * we mark pages dirty in access methods *before* logging changes with + * We can make this check without taking the buffer content lock so long + * as we mark pages dirty in access methods *before* logging changes with * XLogInsert(): if someone marks the buffer dirty just after our check we * don't worry because our checkpoint.redo points before log record for * upcoming changes and so we are not required to write such dirty buffer. @@ -1871,8 +1872,9 @@ WaitIO(volatile BufferDesc *buf) /* * Changed to wait until there's no IO - Inoue 01/13/2000 * - * Note this is *necessary* because an error abort in the process doing I/O - * could release the io_in_progress_lock prematurely. See AbortBufferIO. + * Note this is *necessary* because an error abort in the process doing + * I/O could release the io_in_progress_lock prematurely. See + * AbortBufferIO. */ for (;;) { |