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-rw-r--r--fs/jfs/jfs_txnmgr.c63
1 files changed, 40 insertions, 23 deletions
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index f40301d93f7..98e16d93e14 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);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-16 01:43:33 +0000