*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
* hold on to mp+lock thru update of maps
*/
-
#include <linux/fs.h>
#include <linux/vmalloc.h>
#include <linux/smp_lock.h>
#include <linux/completion.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/kthread.h>
#include "jfs_incore.h"
+#include "jfs_inode.h"
#include "jfs_filsys.h"
#include "jfs_metapage.h"
#include "jfs_dinode.h"
static int TxLockVHWM; /* Very High water mark */
struct tlock *TxLock; /* transaction lock table */
-
/*
* transaction management lock
*/
#define LAZY_LOCK(flags) spin_lock_irqsave(&TxAnchor.LazyLock, flags)
#define LAZY_UNLOCK(flags) spin_unlock_irqrestore(&TxAnchor.LazyLock, flags)
-DECLARE_WAIT_QUEUE_HEAD(jfs_sync_thread_wait);
-DECLARE_WAIT_QUEUE_HEAD(jfs_commit_thread_wait);
+static DECLARE_WAIT_QUEUE_HEAD(jfs_commit_thread_wait);
static int jfs_commit_thread_waking;
/*
add_wait_queue(event, &wait);
set_current_state(TASK_UNINTERRUPTIBLE);
TXN_UNLOCK();
- schedule();
+ io_schedule();
current->state = TASK_RUNNING;
remove_wait_queue(event, &wait);
}
#define TXN_WAKEUP(event) wake_up_all(event)
-
/*
* statistics
*/
int waitlock; /* 4: # of tlock wait */
} stattx;
-
-/*
- * external references
- */
-extern int lmGroupCommit(struct jfs_log *, struct tblock *);
-extern int jfs_commit_inode(struct inode *, int);
-extern int jfs_stop_threads;
-
-extern struct completion jfsIOwait;
-
/*
* forward references
*/
if ((++TxAnchor.tlocksInUse > TxLockHWM) && (jfs_tlocks_low == 0)) {
jfs_info("txLockAlloc tlocks low");
jfs_tlocks_low = 1;
- wake_up(&jfs_sync_thread_wait);
+ wake_up_process(jfsSyncThread);
}
return lid;
TxLockVHWM = (nTxLock * 8) / 10;
size = sizeof(struct tblock) * nTxBlock;
- TxBlock = (struct tblock *) vmalloc(size);
+ TxBlock = vmalloc(size);
if (TxBlock == NULL)
return -ENOMEM;
* tlock id = 0 is reserved.
*/
size = sizeof(struct tlock) * nTxLock;
- TxLock = (struct tlock *) vmalloc(size);
+ TxLock = vmalloc(size);
if (TxLock == NULL) {
vfree(TxBlock);
return -ENOMEM;
TxBlock = NULL;
}
-
/*
* NAME: txBegin()
*
return t;
}
-
/*
* NAME: txBeginAnon()
*
TXN_UNLOCK();
}
-
/*
* txEnd()
*
* synchronize with logsync barrier
*/
if (test_bit(log_SYNCBARRIER, &log->flag)) {
+ TXN_UNLOCK();
+
+ /* write dirty metadata & forward log syncpt */
+ jfs_syncpt(log, 1);
+
jfs_info("log barrier off: 0x%x", log->lsn);
/* enable new transactions start */
/* wakeup all waitors for logsync barrier */
TXN_WAKEUP(&log->syncwait);
- TXN_UNLOCK();
-
- /* forward log syncpt */
- jfs_syncpt(log);
-
goto wakeup;
}
}
TXN_WAKEUP(&TxAnchor.freewait);
}
-
/*
* txLock()
*
/* only anonymous txn.
* Remove from anon_list
*/
+ TXN_LOCK();
list_del_init(&jfs_ip->anon_inode_list);
+ TXN_UNLOCK();
}
jfs_ip->atlhead = tlck->next;
} else {
else
tlck->flag = tlckINODELOCK;
+ if (S_ISDIR(ip->i_mode))
+ tlck->flag |= tlckDIRECTORY;
+
tlck->type = 0;
/* bind the tlock and the page */
TXN_UNLOCK();
release_metapage(mp);
TXN_LOCK();
- xtid = tlck->tid; /* reaquire after dropping TXN_LOCK */
+ xtid = tlck->tid; /* reacquire after dropping TXN_LOCK */
jfs_info("txLock: in waitLock, tid = %d, xtid = %d, lid = %d",
tid, xtid, lid);
return NULL;
}
-
/*
* NAME: txRelease()
*
TXN_UNLOCK();
}
-
/*
* NAME: txUnlock()
*
}
}
-
/*
* txMaplock()
*
/* bind the tlock and the object */
tlck->flag = tlckINODELOCK;
+ if (S_ISDIR(ip->i_mode))
+ tlck->flag |= tlckDIRECTORY;
tlck->ip = ip;
tlck->mp = NULL;
return tlck;
}
-
/*
* txLinelock()
*
linelock->flag = tlckLINELOCK;
linelock->maxcnt = TLOCKLONG;
linelock->index = 0;
+ if (tlck->flag & tlckDIRECTORY)
+ linelock->flag |= tlckDIRECTORY;
/* append linelock after tlock */
linelock->next = tlock->next;
return linelock;
}
-
-
/*
* transaction commit management
* -----------------------------
* when we don't need to worry about it at all.
*
* if ((!S_ISDIR(ip->i_mode))
- * && (tblk->flag & COMMIT_DELETE) == 0) {
- * filemap_fdatawrite(ip->i_mapping);
- * filemap_fdatawait(ip->i_mapping);
- * }
+ * && (tblk->flag & COMMIT_DELETE) == 0)
+ * filemap_write_and_wait(ip->i_mapping);
*/
/*
return rc;
}
-
/*
* NAME: txLog()
*
return rc;
}
-
/*
* diLog()
*
if (tlck->type & tlckENTRY) {
/* log after-image for logredo(): */
lrd->type = cpu_to_le16(LOG_REDOPAGE);
-// *pxd = mp->cm_pxd;
PXDaddress(pxd, mp->index);
PXDlength(pxd,
mp->logical_size >> tblk->sb->s_blocksize_bits);
return rc;
}
-
/*
* dataLog()
*
return 0;
}
-
/*
* dtLog()
*
lrd->log.redopage.type |= cpu_to_le16(LOG_EXTEND);
else
lrd->log.redopage.type |= cpu_to_le16(LOG_NEW);
-// *pxd = mp->cm_pxd;
PXDaddress(pxd, mp->index);
PXDlength(pxd,
mp->logical_size >> tblk->sb->s_blocksize_bits);
return;
}
-
/*
* xtLog()
*
* applying the after-image to the meta-data page.
*/
lrd->type = cpu_to_le16(LOG_REDOPAGE);
-// *page_pxd = mp->cm_pxd;
PXDaddress(page_pxd, mp->index);
PXDlength(page_pxd,
mp->logical_size >> tblk->sb->s_blocksize_bits);
* truncate entry XAD[twm == next - 1]:
*/
if (twm == next - 1) {
- struct pxd_lock *pxdlock;
-
/* format a maplock for txUpdateMap() to update bmap
* to free truncated delta extent of the truncated
* entry XAD[next - 1];
return;
}
-
/*
* mapLog()
*
* function: log from maplock of freed data extents;
*/
-void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
- struct tlock * tlck)
+static void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
+ struct tlock * tlck)
{
struct pxd_lock *pxdlock;
int i, nlock;
}
}
-
/*
* txEA()
*
}
}
-
/*
* txForce()
*
* function: synchronously write pages locked by transaction
* after txLog() but before txUpdateMap();
*/
-void txForce(struct tblock * tblk)
+static void txForce(struct tblock * tblk)
{
struct tlock *tlck;
lid_t lid, next;
}
}
-
/*
* txUpdateMap()
*
*/
else { /* (maplock->flag & mlckFREE) */
- if (S_ISDIR(tlck->ip->i_mode))
+ if (tlck->flag & tlckDIRECTORY)
txFreeMap(ipimap, maplock,
tblk, COMMIT_PWMAP);
else
* unlock mapper/write lock
*/
if (tblk->xflag & COMMIT_CREATE) {
- diUpdatePMap(ipimap, tblk->ino, FALSE, tblk);
- ipimap->i_state |= I_DIRTY;
+ diUpdatePMap(ipimap, tblk->ino, false, tblk);
/* update persistent block allocation map
* for the allocation of inode extent;
*/
txAllocPMap(ipimap, (struct maplock *) & pxdlock, tblk);
} else if (tblk->xflag & COMMIT_DELETE) {
ip = tblk->u.ip;
- diUpdatePMap(ipimap, ip->i_ino, TRUE, tblk);
- ipimap->i_state |= I_DIRTY;
+ diUpdatePMap(ipimap, ip->i_ino, true, tblk);
iput(ip);
}
}
-
/*
* txAllocPMap()
*
if (xad->flag & (XAD_NEW | XAD_EXTENDED)) {
xaddr = addressXAD(xad);
xlen = lengthXAD(xad);
- dbUpdatePMap(ipbmap, FALSE, xaddr,
+ dbUpdatePMap(ipbmap, false, xaddr,
(s64) xlen, tblk);
xad->flag &= ~(XAD_NEW | XAD_EXTENDED);
jfs_info("allocPMap: xaddr:0x%lx xlen:%d",
pxdlock = (struct pxd_lock *) maplock;
xaddr = addressPXD(&pxdlock->pxd);
xlen = lengthPXD(&pxdlock->pxd);
- dbUpdatePMap(ipbmap, FALSE, xaddr, (s64) xlen, tblk);
+ dbUpdatePMap(ipbmap, false, xaddr, (s64) xlen, tblk);
jfs_info("allocPMap: xaddr:0x%lx xlen:%d", (ulong) xaddr, xlen);
} else { /* (maplock->flag & mlckALLOCPXDLIST) */
for (n = 0; n < pxdlistlock->count; n++, pxd++) {
xaddr = addressPXD(pxd);
xlen = lengthPXD(pxd);
- dbUpdatePMap(ipbmap, FALSE, xaddr, (s64) xlen,
+ dbUpdatePMap(ipbmap, false, xaddr, (s64) xlen,
tblk);
jfs_info("allocPMap: xaddr:0x%lx xlen:%d",
(ulong) xaddr, xlen);
}
}
-
/*
* txFreeMap()
*
if (!(xad->flag & XAD_NEW)) {
xaddr = addressXAD(xad);
xlen = lengthXAD(xad);
- dbUpdatePMap(ipbmap, TRUE, xaddr,
+ dbUpdatePMap(ipbmap, true, xaddr,
(s64) xlen, tblk);
jfs_info("freePMap: xaddr:0x%lx "
"xlen:%d",
pxdlock = (struct pxd_lock *) maplock;
xaddr = addressPXD(&pxdlock->pxd);
xlen = lengthPXD(&pxdlock->pxd);
- dbUpdatePMap(ipbmap, TRUE, xaddr, (s64) xlen,
+ dbUpdatePMap(ipbmap, true, xaddr, (s64) xlen,
tblk);
jfs_info("freePMap: xaddr:0x%lx xlen:%d",
(ulong) xaddr, xlen);
for (n = 0; n < pxdlistlock->count; n++, pxd++) {
xaddr = addressPXD(pxd);
xlen = lengthPXD(pxd);
- dbUpdatePMap(ipbmap, TRUE, xaddr,
+ dbUpdatePMap(ipbmap, true, xaddr,
(s64) xlen, tblk);
jfs_info("freePMap: xaddr:0x%lx xlen:%d",
(ulong) xaddr, xlen);
}
}
-
/*
* txFreelock()
*
TXN_UNLOCK();
}
-
/*
* txAbort()
*
unsigned long flags;
struct jfs_sb_info *sbi;
- daemonize("jfsCommit");
-
- complete(&jfsIOwait);
-
do {
LAZY_LOCK(flags);
jfs_commit_thread_waking = 0; /* OK to wake another thread */
/* In case a wakeup came while all threads were active */
jfs_commit_thread_waking = 0;
- if (current->flags & PF_FREEZE) {
+ if (freezing(current)) {
LAZY_UNLOCK(flags);
- refrigerator(PF_FREEZE);
+ refrigerator();
} else {
DECLARE_WAITQUEUE(wq, current);
current->state = TASK_RUNNING;
remove_wait_queue(&jfs_commit_thread_wait, &wq);
}
- } while (!jfs_stop_threads);
+ } while (!kthread_should_stop());
if (!list_empty(&TxAnchor.unlock_queue))
jfs_err("jfs_lazycommit being killed w/pending transactions!");
else
jfs_info("jfs_lazycommit being killed\n");
- complete_and_exit(&jfsIOwait, 0);
+ return 0;
}
void txLazyUnlock(struct tblock * tblk)
*/
TXN_UNLOCK();
tid = txBegin(ip->i_sb, COMMIT_INODE | COMMIT_FORCE);
- down(&jfs_ip->commit_sem);
+ mutex_lock(&jfs_ip->commit_mutex);
txCommit(tid, 1, &ip, 0);
txEnd(tid);
- up(&jfs_ip->commit_sem);
+ mutex_unlock(&jfs_ip->commit_mutex);
/*
* Just to be safe. I don't know how
* long we can run without blocking
int rc;
tid_t tid;
- daemonize("jfsSync");
-
- complete(&jfsIOwait);
-
do {
/*
* write each inode on the anonymous inode list
* Inode is being freed
*/
list_del_init(&jfs_ip->anon_inode_list);
- } else if (! down_trylock(&jfs_ip->commit_sem)) {
+ } else if (mutex_trylock(&jfs_ip->commit_mutex)) {
/*
* inode will be removed from anonymous list
* when it is committed
tid = txBegin(ip->i_sb, COMMIT_INODE);
rc = txCommit(tid, 1, &ip, 0);
txEnd(tid);
- up(&jfs_ip->commit_sem);
+ mutex_unlock(&jfs_ip->commit_mutex);
iput(ip);
/*
cond_resched();
TXN_LOCK();
} else {
- /* We can't get the commit semaphore. It may
+ /* We can't get the commit mutex. It may
* be held by a thread waiting for tlock's
* so let's not block here. Save it to
* put back on the anon_list.
/* Add anon_list2 back to anon_list */
list_splice_init(&TxAnchor.anon_list2, &TxAnchor.anon_list);
- if (current->flags & PF_FREEZE) {
+ if (freezing(current)) {
TXN_UNLOCK();
- refrigerator(PF_FREEZE);
+ refrigerator();
} else {
- DECLARE_WAITQUEUE(wq, current);
-
- add_wait_queue(&jfs_sync_thread_wait, &wq);
set_current_state(TASK_INTERRUPTIBLE);
TXN_UNLOCK();
schedule();
current->state = TASK_RUNNING;
- remove_wait_queue(&jfs_sync_thread_wait, &wq);
}
- } while (!jfs_stop_threads);
+ } while (!kthread_should_stop());
jfs_info("jfs_sync being killed");
- complete_and_exit(&jfsIOwait, 0);
+ return 0;
}
#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
git://git.onelab.eu / linux-2.6.git / blobdiff