{
xfs_log_item_t *prev_lip;
- if (list_empty(&ailp->xa_ail))
+ if (list_empty(&ailp->ail_head))
return;
/*
*/
ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
prev_lip = list_entry(lip->li_ail.prev, xfs_log_item_t, li_ail);
- if (&prev_lip->li_ail != &ailp->xa_ail)
+ if (&prev_lip->li_ail != &ailp->ail_head)
ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
prev_lip = list_entry(lip->li_ail.next, xfs_log_item_t, li_ail);
- if (&prev_lip->li_ail != &ailp->xa_ail)
+ if (&prev_lip->li_ail != &ailp->ail_head)
ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) >= 0);
xfs_ail_max(
struct xfs_ail *ailp)
{
- if (list_empty(&ailp->xa_ail))
+ if (list_empty(&ailp->ail_head))
return NULL;
- return list_entry(ailp->xa_ail.prev, xfs_log_item_t, li_ail);
+ return list_entry(ailp->ail_head.prev, xfs_log_item_t, li_ail);
}
/*
struct xfs_ail *ailp,
xfs_log_item_t *lip)
{
- if (lip->li_ail.next == &ailp->xa_ail)
+ if (lip->li_ail.next == &ailp->ail_head)
return NULL;
return list_first_entry(&lip->li_ail, xfs_log_item_t, li_ail);
xfs_lsn_t lsn = 0;
xfs_log_item_t *lip;
- spin_lock(&ailp->xa_lock);
+ spin_lock(&ailp->ail_lock);
lip = xfs_ail_min(ailp);
if (lip)
lsn = lip->li_lsn;
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
return lsn;
}
xfs_lsn_t lsn = 0;
xfs_log_item_t *lip;
- spin_lock(&ailp->xa_lock);
+ spin_lock(&ailp->ail_lock);
lip = xfs_ail_max(ailp);
if (lip)
lsn = lip->li_lsn;
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
return lsn;
}
struct xfs_ail_cursor *cur)
{
cur->item = NULL;
- list_add_tail(&cur->list, &ailp->xa_cursors);
+ list_add_tail(&cur->list, &ailp->ail_cursors);
}
/*
{
struct xfs_ail_cursor *cur;
- list_for_each_entry(cur, &ailp->xa_cursors, list) {
+ list_for_each_entry(cur, &ailp->ail_cursors, list) {
if (cur->item == lip)
cur->item = (struct xfs_log_item *)
((uintptr_t)cur->item | 1);
goto out;
}
- list_for_each_entry(lip, &ailp->xa_ail, li_ail) {
+ list_for_each_entry(lip, &ailp->ail_head, li_ail) {
if (XFS_LSN_CMP(lip->li_lsn, lsn) >= 0)
goto out;
}
{
xfs_log_item_t *lip;
- list_for_each_entry_reverse(lip, &ailp->xa_ail, li_ail) {
+ list_for_each_entry_reverse(lip, &ailp->ail_head, li_ail) {
if (XFS_LSN_CMP(lip->li_lsn, lsn) <= 0)
return lip;
}
if (lip)
list_splice(list, &lip->li_ail);
else
- list_splice(list, &ailp->xa_ail);
+ list_splice(list, &ailp->ail_head);
}
/*
* If log item pinning is enabled, skip the push and track the item as
* pinned. This can help induce head-behind-tail conditions.
*/
- if (XFS_TEST_ERROR(false, ailp->xa_mount, XFS_ERRTAG_LOG_ITEM_PIN))
+ if (XFS_TEST_ERROR(false, ailp->ail_mount, XFS_ERRTAG_LOG_ITEM_PIN))
return XFS_ITEM_PINNED;
- return lip->li_ops->iop_push(lip, &ailp->xa_buf_list);
+ return lip->li_ops->iop_push(lip, &ailp->ail_buf_list);
}
static long
xfsaild_push(
struct xfs_ail *ailp)
{
- xfs_mount_t *mp = ailp->xa_mount;
+ xfs_mount_t *mp = ailp->ail_mount;
struct xfs_ail_cursor cur;
xfs_log_item_t *lip;
xfs_lsn_t lsn;
* buffers the last time we ran, force the log first and wait for it
* before pushing again.
*/
- if (ailp->xa_log_flush && ailp->xa_last_pushed_lsn == 0 &&
- (!list_empty_careful(&ailp->xa_buf_list) ||
+ if (ailp->ail_log_flush && ailp->ail_last_pushed_lsn == 0 &&
+ (!list_empty_careful(&ailp->ail_buf_list) ||
xfs_ail_min_lsn(ailp))) {
- ailp->xa_log_flush = 0;
+ ailp->ail_log_flush = 0;
XFS_STATS_INC(mp, xs_push_ail_flush);
xfs_log_force(mp, XFS_LOG_SYNC);
}
- spin_lock(&ailp->xa_lock);
+ spin_lock(&ailp->ail_lock);
- /* barrier matches the xa_target update in xfs_ail_push() */
+ /* barrier matches the ail_target update in xfs_ail_push() */
smp_rmb();
- target = ailp->xa_target;
- ailp->xa_target_prev = target;
+ target = ailp->ail_target;
+ ailp->ail_target_prev = target;
- lip = xfs_trans_ail_cursor_first(ailp, &cur, ailp->xa_last_pushed_lsn);
+ lip = xfs_trans_ail_cursor_first(ailp, &cur, ailp->ail_last_pushed_lsn);
if (!lip) {
/*
* If the AIL is empty or our push has reached the end we are
* done now.
*/
xfs_trans_ail_cursor_done(&cur);
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
goto out_done;
}
XFS_STATS_INC(mp, xs_push_ail_success);
trace_xfs_ail_push(lip);
- ailp->xa_last_pushed_lsn = lsn;
+ ailp->ail_last_pushed_lsn = lsn;
break;
case XFS_ITEM_FLUSHING:
trace_xfs_ail_flushing(lip);
flushing++;
- ailp->xa_last_pushed_lsn = lsn;
+ ailp->ail_last_pushed_lsn = lsn;
break;
case XFS_ITEM_PINNED:
trace_xfs_ail_pinned(lip);
stuck++;
- ailp->xa_log_flush++;
+ ailp->ail_log_flush++;
break;
case XFS_ITEM_LOCKED:
XFS_STATS_INC(mp, xs_push_ail_locked);
lsn = lip->li_lsn;
}
xfs_trans_ail_cursor_done(&cur);
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
- if (xfs_buf_delwri_submit_nowait(&ailp->xa_buf_list))
- ailp->xa_log_flush++;
+ if (xfs_buf_delwri_submit_nowait(&ailp->ail_buf_list))
+ ailp->ail_log_flush++;
if (!count || XFS_LSN_CMP(lsn, target) >= 0) {
out_done:
* AIL before we start the next scan from the start of the AIL.
*/
tout = 50;
- ailp->xa_last_pushed_lsn = 0;
+ ailp->ail_last_pushed_lsn = 0;
} else if (((stuck + flushing) * 100) / count > 90) {
/*
* Either there is a lot of contention on the AIL or we are
* the restart to issue a log force to unpin the stuck items.
*/
tout = 20;
- ailp->xa_last_pushed_lsn = 0;
+ ailp->ail_last_pushed_lsn = 0;
} else {
/*
* Assume we have more work to do in a short while.
break;
}
- spin_lock(&ailp->xa_lock);
+ spin_lock(&ailp->ail_lock);
/*
* Idle if the AIL is empty and we are not racing with a target
* update. We check the AIL after we set the task to a sleep
- * state to guarantee that we either catch an xa_target update
+ * state to guarantee that we either catch an ail_target update
* or that a wake_up resets the state to TASK_RUNNING.
* Otherwise, we run the risk of sleeping indefinitely.
*
- * The barrier matches the xa_target update in xfs_ail_push().
+ * The barrier matches the ail_target update in xfs_ail_push().
*/
smp_rmb();
if (!xfs_ail_min(ailp) &&
- ailp->xa_target == ailp->xa_target_prev) {
- spin_unlock(&ailp->xa_lock);
+ ailp->ail_target == ailp->ail_target_prev) {
+ spin_unlock(&ailp->ail_lock);
freezable_schedule();
tout = 0;
continue;
}
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
if (tout)
freezable_schedule_timeout(msecs_to_jiffies(tout));
xfs_log_item_t *lip;
lip = xfs_ail_min(ailp);
- if (!lip || XFS_FORCED_SHUTDOWN(ailp->xa_mount) ||
- XFS_LSN_CMP(threshold_lsn, ailp->xa_target) <= 0)
+ if (!lip || XFS_FORCED_SHUTDOWN(ailp->ail_mount) ||
+ XFS_LSN_CMP(threshold_lsn, ailp->ail_target) <= 0)
return;
/*
* the XFS_AIL_PUSHING_BIT.
*/
smp_wmb();
- xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn);
+ xfs_trans_ail_copy_lsn(ailp, &ailp->ail_target, &threshold_lsn);
smp_wmb();
- wake_up_process(ailp->xa_task);
+ wake_up_process(ailp->ail_task);
}
/*
struct xfs_log_item *lip;
DEFINE_WAIT(wait);
- spin_lock(&ailp->xa_lock);
+ spin_lock(&ailp->ail_lock);
while ((lip = xfs_ail_max(ailp)) != NULL) {
- prepare_to_wait(&ailp->xa_empty, &wait, TASK_UNINTERRUPTIBLE);
- ailp->xa_target = lip->li_lsn;
- wake_up_process(ailp->xa_task);
- spin_unlock(&ailp->xa_lock);
+ prepare_to_wait(&ailp->ail_empty, &wait, TASK_UNINTERRUPTIBLE);
+ ailp->ail_target = lip->li_lsn;
+ wake_up_process(ailp->ail_task);
+ spin_unlock(&ailp->ail_lock);
schedule();
- spin_lock(&ailp->xa_lock);
+ spin_lock(&ailp->ail_lock);
}
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
- finish_wait(&ailp->xa_empty, &wait);
+ finish_wait(&ailp->ail_empty, &wait);
}
/*
struct xfs_ail_cursor *cur,
struct xfs_log_item **log_items,
int nr_items,
- xfs_lsn_t lsn) __releases(ailp->xa_lock)
+ xfs_lsn_t lsn) __releases(ailp->ail_lock)
{
xfs_log_item_t *mlip;
int mlip_changed = 0;
xfs_ail_splice(ailp, cur, &tmp, lsn);
if (mlip_changed) {
- if (!XFS_FORCED_SHUTDOWN(ailp->xa_mount))
- xlog_assign_tail_lsn_locked(ailp->xa_mount);
- spin_unlock(&ailp->xa_lock);
+ if (!XFS_FORCED_SHUTDOWN(ailp->ail_mount))
+ xlog_assign_tail_lsn_locked(ailp->ail_mount);
+ spin_unlock(&ailp->ail_lock);
- xfs_log_space_wake(ailp->xa_mount);
+ xfs_log_space_wake(ailp->ail_mount);
} else {
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
}
}
xfs_trans_ail_delete(
struct xfs_ail *ailp,
struct xfs_log_item *lip,
- int shutdown_type) __releases(ailp->xa_lock)
+ int shutdown_type) __releases(ailp->ail_lock)
{
- struct xfs_mount *mp = ailp->xa_mount;
+ struct xfs_mount *mp = ailp->ail_mount;
bool mlip_changed;
if (!(lip->li_flags & XFS_LI_IN_AIL)) {
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
if (!XFS_FORCED_SHUTDOWN(mp)) {
xfs_alert_tag(mp, XFS_PTAG_AILDELETE,
"%s: attempting to delete a log item that is not in the AIL",
if (mlip_changed) {
if (!XFS_FORCED_SHUTDOWN(mp))
xlog_assign_tail_lsn_locked(mp);
- if (list_empty(&ailp->xa_ail))
- wake_up_all(&ailp->xa_empty);
+ if (list_empty(&ailp->ail_head))
+ wake_up_all(&ailp->ail_empty);
}
- spin_unlock(&ailp->xa_lock);
+ spin_unlock(&ailp->ail_lock);
if (mlip_changed)
- xfs_log_space_wake(ailp->xa_mount);
+ xfs_log_space_wake(ailp->ail_mount);
}
int
if (!ailp)
return -ENOMEM;
- ailp->xa_mount = mp;
- INIT_LIST_HEAD(&ailp->xa_ail);
- INIT_LIST_HEAD(&ailp->xa_cursors);
- spin_lock_init(&ailp->xa_lock);
- INIT_LIST_HEAD(&ailp->xa_buf_list);
- init_waitqueue_head(&ailp->xa_empty);
+ ailp->ail_mount = mp;
+ INIT_LIST_HEAD(&ailp->ail_head);
+ INIT_LIST_HEAD(&ailp->ail_cursors);
+ spin_lock_init(&ailp->ail_lock);
+ INIT_LIST_HEAD(&ailp->ail_buf_list);
+ init_waitqueue_head(&ailp->ail_empty);
- ailp->xa_task = kthread_run(xfsaild, ailp, "xfsaild/%s",
- ailp->xa_mount->m_fsname);
- if (IS_ERR(ailp->xa_task))
+ ailp->ail_task = kthread_run(xfsaild, ailp, "xfsaild/%s",
+ ailp->ail_mount->m_fsname);
+ if (IS_ERR(ailp->ail_task))
goto out_free_ailp;
mp->m_ail = ailp;
{
struct xfs_ail *ailp = mp->m_ail;
- kthread_stop(ailp->xa_task);
+ kthread_stop(ailp->ail_task);
kmem_free(ailp);
}
projects / linux-2.6-block.git / blobdiff