diff options
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_sync.c | 7 | ||||
| -rw-r--r-- | fs/xfs/xfs_log.c | 6 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans_ail.c | 50 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans_priv.h | 7 |
4 files changed, 61 insertions, 9 deletions
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index debe282..9ad9560 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -22,6 +22,7 @@ #include "xfs_log.h" #include "xfs_inum.h" #include "xfs_trans.h" +#include "xfs_trans_priv.h" #include "xfs_sb.h" #include "xfs_ag.h" #include "xfs_mount.h" @@ -462,6 +463,9 @@ xfs_sync_worker( else xfs_log_force(mp, 0); error = xfs_qm_sync(mp, SYNC_TRYLOCK); + + /* start pushing all the metadata that is currently dirty */ + xfs_ail_push_all(mp->m_ail); } /* queue us up again */ @@ -1027,8 +1031,9 @@ xfs_reclaim_inode_shrink( mp = container_of(shrink, struct xfs_mount, m_inode_shrink); if (nr_to_scan) { - /* kick background reclaimer */ + /* kick background reclaimer and push the AIL */ xfs_syncd_queue_reclaim(mp); + xfs_ail_push_all(mp->m_ail); if (!(gfp_mask & __GFP_FS)) return -1; diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 25efa9b..2464316 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -761,7 +761,7 @@ xfs_log_need_covered(xfs_mount_t *mp) break; case XLOG_STATE_COVER_NEED: case XLOG_STATE_COVER_NEED2: - if (!xfs_trans_ail_tail(log->l_ailp) && + if (!xfs_ail_min_lsn(log->l_ailp) && xlog_iclogs_empty(log)) { if (log->l_covered_state == XLOG_STATE_COVER_NEED) log->l_covered_state = XLOG_STATE_COVER_DONE; @@ -801,7 +801,7 @@ xlog_assign_tail_lsn( xfs_lsn_t tail_lsn; struct log *log = mp->m_log; - tail_lsn = xfs_trans_ail_tail(mp->m_ail); + tail_lsn = xfs_ail_min_lsn(mp->m_ail); if (!tail_lsn) tail_lsn = atomic64_read(&log->l_last_sync_lsn); @@ -1239,7 +1239,7 @@ xlog_grant_push_ail( * the filesystem is shutting down. */ if (!XLOG_FORCED_SHUTDOWN(log)) - xfs_trans_ail_push(log->l_ailp, threshold_lsn); + xfs_ail_push(log->l_ailp, threshold_lsn); } /* diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index 8012bfb..acdb92f 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -90,6 +90,20 @@ xfs_ail_min( return list_first_entry(&ailp->xa_ail, xfs_log_item_t, li_ail); } + /* + * Return a pointer to the last item in the AIL. If the AIL is empty, then + * return NULL. + */ +static xfs_log_item_t * +xfs_ail_max( + struct xfs_ail *ailp) +{ + if (list_empty(&ailp->xa_ail)) + return NULL; + + return list_entry(ailp->xa_ail.prev, xfs_log_item_t, li_ail); +} + /* * Return a pointer to the item which follows the given item in the AIL. If * the given item is the last item in the list, then return NULL. @@ -114,7 +128,7 @@ xfs_ail_next( * item in the AIL. */ xfs_lsn_t -xfs_trans_ail_tail( +xfs_ail_min_lsn( struct xfs_ail *ailp) { xfs_lsn_t lsn = 0; @@ -130,6 +144,25 @@ xfs_trans_ail_tail( } /* + * Return the maximum lsn held in the AIL, or zero if the AIL is empty. + */ +static xfs_lsn_t +xfs_ail_max_lsn( + struct xfs_ail *ailp) +{ + xfs_lsn_t lsn = 0; + xfs_log_item_t *lip; + + spin_lock(&ailp->xa_lock); + lip = xfs_ail_max(ailp); + if (lip) + lsn = lip->li_lsn; + spin_unlock(&ailp->xa_lock); + + return lsn; +} + +/* * AIL traversal cursor initialisation. * * The cursor keeps track of where our current traversal is up @@ -504,7 +537,7 @@ xfs_ail_worker( * any of the objects, so the lock is not needed. */ void -xfs_trans_ail_push( +xfs_ail_push( struct xfs_ail *ailp, xfs_lsn_t threshold_lsn) { @@ -526,6 +559,19 @@ xfs_trans_ail_push( } /* + * Push out all items in the AIL immediately + */ +void +xfs_ail_push_all( + struct xfs_ail *ailp) +{ + xfs_lsn_t threshold_lsn = xfs_ail_max_lsn(ailp); + + if (threshold_lsn) + xfs_ail_push(ailp, threshold_lsn); +} + +/* * This is to be called when an item is unlocked that may have * been in the AIL. It will wake up the first member of the AIL * wait list if this item's unlocking might allow it to progress. diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h index 6ebd322..6b164e9e 100644 --- a/fs/xfs/xfs_trans_priv.h +++ b/fs/xfs/xfs_trans_priv.h @@ -104,12 +104,13 @@ xfs_trans_ail_delete( xfs_trans_ail_delete_bulk(ailp, &lip, 1); } -void xfs_trans_ail_push(struct xfs_ail *, xfs_lsn_t); +void xfs_ail_push(struct xfs_ail *, xfs_lsn_t); +void xfs_ail_push_all(struct xfs_ail *); +xfs_lsn_t xfs_ail_min_lsn(struct xfs_ail *ailp); + void xfs_trans_unlocked_item(struct xfs_ail *, xfs_log_item_t *); -xfs_lsn_t xfs_trans_ail_tail(struct xfs_ail *ailp); - struct xfs_log_item *xfs_trans_ail_cursor_first(struct xfs_ail *ailp, struct xfs_ail_cursor *cur, xfs_lsn_t lsn); |
