diff options
| -rw-r--r-- | fs/jfs/jfs_txnmgr.c | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c index f40301d9..98e16d9 100644 --- a/fs/jfs/jfs_txnmgr.c +++ b/fs/jfs/jfs_txnmgr.c @@ -1712,7 +1712,7 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, struct maplock *maplock; struct xdlistlock *xadlock; struct pxd_lock *pxdlock; - pxd_t *pxd; + pxd_t *page_pxd; int next, lwm, hwm; ip = tlck->ip; @@ -1722,7 +1722,7 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, lrd->log.redopage.type = cpu_to_le16(LOG_XTREE); lrd->log.redopage.l2linesize = cpu_to_le16(L2XTSLOTSIZE); - pxd = &lrd->log.redopage.pxd; + page_pxd = &lrd->log.redopage.pxd; if (tlck->type & tlckBTROOT) { lrd->log.redopage.type |= cpu_to_le16(LOG_BTROOT); @@ -1752,9 +1752,9 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, * applying the after-image to the meta-data page. */ lrd->type = cpu_to_le16(LOG_REDOPAGE); -// *pxd = mp->cm_pxd; - PXDaddress(pxd, mp->index); - PXDlength(pxd, +// *page_pxd = mp->cm_pxd; + PXDaddress(page_pxd, mp->index); + PXDlength(page_pxd, mp->logical_size >> tblk->sb->s_blocksize_bits); lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck)); @@ -1776,25 +1776,31 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, tlck->flag |= tlckUPDATEMAP; xadlock->flag = mlckALLOCXADLIST; xadlock->count = next - lwm; - if ((xadlock->count <= 2) && (tblk->xflag & COMMIT_LAZY)) { + if ((xadlock->count <= 4) && (tblk->xflag & COMMIT_LAZY)) { int i; + pxd_t *pxd; /* * Lazy commit may allow xtree to be modified before * txUpdateMap runs. Copy xad into linelock to * preserve correct data. + * + * We can fit twice as may pxd's as xads in the lock */ - xadlock->xdlist = &xtlck->pxdlock; - memcpy(xadlock->xdlist, &p->xad[lwm], - sizeof(xad_t) * xadlock->count); - - for (i = 0; i < xadlock->count; i++) + xadlock->flag = mlckALLOCPXDLIST; + pxd = xadlock->xdlist = &xtlck->pxdlock; + for (i = 0; i < xadlock->count; i++) { + PXDaddress(pxd, addressXAD(&p->xad[lwm + i])); + PXDlength(pxd, lengthXAD(&p->xad[lwm + i])); p->xad[lwm + i].flag &= ~(XAD_NEW | XAD_EXTENDED); + pxd++; + } } else { /* * xdlist will point to into inode's xtree, ensure * that transaction is not committed lazily. */ + xadlock->flag = mlckALLOCXADLIST; xadlock->xdlist = &p->xad[lwm]; tblk->xflag &= ~COMMIT_LAZY; } @@ -1836,8 +1842,8 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, if (tblk->xflag & COMMIT_TRUNCATE) { /* write NOREDOPAGE for the page */ lrd->type = cpu_to_le16(LOG_NOREDOPAGE); - PXDaddress(pxd, mp->index); - PXDlength(pxd, + PXDaddress(page_pxd, mp->index); + PXDlength(page_pxd, mp->logical_size >> tblk->sb-> s_blocksize_bits); lrd->backchain = @@ -1872,22 +1878,32 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, * deleted page itself; */ tlck->flag |= tlckUPDATEMAP; - xadlock->flag = mlckFREEXADLIST; xadlock->count = hwm - XTENTRYSTART + 1; - if ((xadlock->count <= 2) && (tblk->xflag & COMMIT_LAZY)) { + if ((xadlock->count <= 4) && (tblk->xflag & COMMIT_LAZY)) { + int i; + pxd_t *pxd; /* * Lazy commit may allow xtree to be modified before * txUpdateMap runs. Copy xad into linelock to * preserve correct data. + * + * We can fit twice as may pxd's as xads in the lock */ - xadlock->xdlist = &xtlck->pxdlock; - memcpy(xadlock->xdlist, &p->xad[XTENTRYSTART], - sizeof(xad_t) * xadlock->count); + xadlock->flag = mlckFREEPXDLIST; + pxd = xadlock->xdlist = &xtlck->pxdlock; + for (i = 0; i < xadlock->count; i++) { + PXDaddress(pxd, + addressXAD(&p->xad[XTENTRYSTART + i])); + PXDlength(pxd, + lengthXAD(&p->xad[XTENTRYSTART + i])); + pxd++; + } } else { /* * xdlist will point to into inode's xtree, ensure * that transaction is not committed lazily. */ + xadlock->flag = mlckFREEXADLIST; xadlock->xdlist = &p->xad[XTENTRYSTART]; tblk->xflag &= ~COMMIT_LAZY; } @@ -1918,7 +1934,7 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, * header ? */ if (tlck->type & tlckTRUNCATE) { - pxd_t tpxd; /* truncated extent of xad */ + pxd_t pxd; /* truncated extent of xad */ int twm; /* @@ -1947,8 +1963,9 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, * applying the after-image to the meta-data page. */ lrd->type = cpu_to_le16(LOG_REDOPAGE); - PXDaddress(pxd, mp->index); - PXDlength(pxd, mp->logical_size >> tblk->sb->s_blocksize_bits); + PXDaddress(page_pxd, mp->index); + PXDlength(page_pxd, + mp->logical_size >> tblk->sb->s_blocksize_bits); lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, tlck)); /* @@ -1966,7 +1983,7 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, lrd->log.updatemap.type = cpu_to_le16(LOG_FREEPXD); lrd->log.updatemap.nxd = cpu_to_le16(1); lrd->log.updatemap.pxd = pxdlock->pxd; - tpxd = pxdlock->pxd; /* save to format maplock */ + pxd = pxdlock->pxd; /* save to format maplock */ lrd->backchain = cpu_to_le32(lmLog(log, tblk, lrd, NULL)); } @@ -2035,7 +2052,7 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd, pxdlock = (struct pxd_lock *) xadlock; pxdlock->flag = mlckFREEPXD; pxdlock->count = 1; - pxdlock->pxd = tpxd; + pxdlock->pxd = pxd; jfs_info("xtLog: truncate ip:0x%p mp:0x%p count:%d " "hwm:%d", ip, mp, pxdlock->count, hwm); |
