From 57e809561118a4db2e19d31282761ca062fd6014 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Wed, 7 Mar 2018 14:59:39 -0800 Subject: xfs: Rename xa_ elements to ail_ This is a simple rename, except that xa_ail becomes ail_head. Signed-off-by: Matthew Wilcox Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/xfs_trans_ail.c | 152 ++++++++++++++++++++++++------------------------- 1 file changed, 76 insertions(+), 76 deletions(-) (limited to 'fs/xfs/xfs_trans_ail.c') diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index cef89f7127d3..d4a2445215e6 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -40,7 +40,7 @@ xfs_ail_check( { xfs_log_item_t *prev_lip; - if (list_empty(&ailp->xa_ail)) + if (list_empty(&ailp->ail_head)) return; /* @@ -48,11 +48,11 @@ xfs_ail_check( */ 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); @@ -69,10 +69,10 @@ static xfs_log_item_t * 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); } /* @@ -84,7 +84,7 @@ xfs_ail_next( 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); @@ -105,11 +105,11 @@ xfs_ail_min_lsn( 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; } @@ -124,11 +124,11 @@ xfs_ail_max_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; } @@ -146,7 +146,7 @@ xfs_trans_ail_cursor_init( struct xfs_ail_cursor *cur) { cur->item = NULL; - list_add_tail(&cur->list, &ailp->xa_cursors); + list_add_tail(&cur->list, &ailp->ail_cursors); } /* @@ -194,7 +194,7 @@ xfs_trans_ail_cursor_clear( { 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); @@ -222,7 +222,7 @@ xfs_trans_ail_cursor_first( 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; } @@ -241,7 +241,7 @@ __xfs_trans_ail_cursor_last( { 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; } @@ -310,7 +310,7 @@ xfs_ail_splice( if (lip) list_splice(list, &lip->li_ail); else - list_splice(list, &ailp->xa_ail); + list_splice(list, &ailp->ail_head); } /* @@ -335,17 +335,17 @@ xfsaild_push_item( * 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; @@ -360,30 +360,30 @@ xfsaild_push( * 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; } @@ -404,7 +404,7 @@ xfsaild_push( 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: @@ -423,7 +423,7 @@ xfsaild_push( trace_xfs_ail_flushing(lip); flushing++; - ailp->xa_last_pushed_lsn = lsn; + ailp->ail_last_pushed_lsn = lsn; break; case XFS_ITEM_PINNED: @@ -431,7 +431,7 @@ xfsaild_push( 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); @@ -468,10 +468,10 @@ xfsaild_push( 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: @@ -481,7 +481,7 @@ 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 @@ -494,7 +494,7 @@ out_done: * 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. @@ -536,26 +536,26 @@ xfsaild( 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)); @@ -592,8 +592,8 @@ xfs_ail_push( 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; /* @@ -601,10 +601,10 @@ xfs_ail_push( * 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); } /* @@ -630,18 +630,18 @@ xfs_ail_push_all_sync( 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); } /* @@ -672,7 +672,7 @@ xfs_trans_ail_update_bulk( 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; @@ -705,13 +705,13 @@ xfs_trans_ail_update_bulk( 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); } } @@ -756,13 +756,13 @@ void 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", @@ -776,13 +776,13 @@ xfs_trans_ail_delete( 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 @@ -795,16 +795,16 @@ xfs_trans_ail_init( 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; @@ -821,6 +821,6 @@ xfs_trans_ail_destroy( { struct xfs_ail *ailp = mp->m_ail; - kthread_stop(ailp->xa_task); + kthread_stop(ailp->ail_task); kmem_free(ailp); } -- cgit v1.2.3