diff options
Diffstat (limited to 'fs/xfs/xfs_trans_priv.h')
| -rw-r--r-- | fs/xfs/xfs_trans_priv.h | 120 |
1 files changed, 71 insertions, 49 deletions
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h index 53b7c9b0f8f7..f945f0450b16 100644 --- a/fs/xfs/xfs_trans_priv.h +++ b/fs/xfs/xfs_trans_priv.h @@ -1,38 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc. * All Rights Reserved. - * - * 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. - * - * This program is distributed in the hope that it would 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 the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __XFS_TRANS_PRIV_H__ #define __XFS_TRANS_PRIV_H__ +struct xlog; struct xfs_log_item; -struct xfs_log_item_desc; struct xfs_mount; struct xfs_trans; struct xfs_ail; struct xfs_log_vec; + +void xfs_trans_init(struct xfs_mount *); void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *); void xfs_trans_del_item(struct xfs_log_item *); -void xfs_trans_free_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn, - int flags); void xfs_trans_unreserve_and_mod_sb(struct xfs_trans *tp); -void xfs_trans_committed_bulk(struct xfs_ail *ailp, struct xfs_log_vec *lv, - xfs_lsn_t commit_lsn, int aborted); /* * AIL traversal cursor. * @@ -63,52 +49,76 @@ struct xfs_ail_cursor { * Eventually we need to drive the locking in here as well. */ struct xfs_ail { - struct xfs_mount *xa_mount; - struct task_struct *xa_task; - struct list_head xa_ail; - xfs_lsn_t xa_target; - xfs_lsn_t xa_target_prev; - struct list_head xa_cursors; - spinlock_t xa_lock; - xfs_lsn_t xa_last_pushed_lsn; - int xa_log_flush; - struct list_head xa_buf_list; - wait_queue_head_t xa_empty; + struct xlog *ail_log; + struct task_struct *ail_task; + struct list_head ail_head; + struct list_head ail_cursors; + spinlock_t ail_lock; + xfs_lsn_t ail_last_pushed_lsn; + xfs_lsn_t ail_head_lsn; + int ail_log_flush; + unsigned long ail_opstate; + struct list_head ail_buf_list; + wait_queue_head_t ail_empty; + xfs_lsn_t ail_target; }; +/* Push all items out of the AIL immediately. */ +#define XFS_AIL_OPSTATE_PUSH_ALL 0u + /* * From xfs_trans_ail.c */ void xfs_trans_ail_update_bulk(struct xfs_ail *ailp, 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); +/* + * Return a pointer to the first item in the AIL. If the AIL is empty, then + * return NULL. + */ +static inline struct xfs_log_item * +xfs_ail_min( + struct xfs_ail *ailp) +{ + return list_first_entry_or_null(&ailp->ail_head, struct xfs_log_item, + li_ail); +} + static inline void xfs_trans_ail_update( struct xfs_ail *ailp, struct xfs_log_item *lip, - xfs_lsn_t lsn) __releases(ailp->xa_lock) + xfs_lsn_t lsn) __releases(ailp->ail_lock) { xfs_trans_ail_update_bulk(ailp, NULL, &lip, 1, lsn); } -void xfs_trans_ail_delete_bulk(struct xfs_ail *ailp, - struct xfs_log_item **log_items, int nr_items, - int shutdown_type) - __releases(ailp->xa_lock); -static inline void -xfs_trans_ail_delete( - struct xfs_ail *ailp, - xfs_log_item_t *lip, - int shutdown_type) __releases(ailp->xa_lock) +void xfs_trans_ail_insert(struct xfs_ail *ailp, struct xfs_log_item *lip, + xfs_lsn_t lsn); + +xfs_lsn_t xfs_ail_delete_one(struct xfs_ail *ailp, struct xfs_log_item *lip); +void xfs_ail_update_finish(struct xfs_ail *ailp, xfs_lsn_t old_lsn) + __releases(ailp->ail_lock); +void xfs_trans_ail_delete(struct xfs_log_item *lip, int shutdown_type); + +static inline void xfs_ail_push(struct xfs_ail *ailp) { - xfs_trans_ail_delete_bulk(ailp, &lip, 1, shutdown_type); + wake_up_process(ailp->ail_task); } -void xfs_ail_push(struct xfs_ail *, xfs_lsn_t); -void xfs_ail_push_all(struct xfs_ail *); -void xfs_ail_push_all_sync(struct xfs_ail *); -struct xfs_log_item *xfs_ail_min(struct xfs_ail *ailp); +static inline void xfs_ail_push_all(struct xfs_ail *ailp) +{ + if (!test_and_set_bit(XFS_AIL_OPSTATE_PUSH_ALL, &ailp->ail_opstate)) + xfs_ail_push(ailp); +} + +static inline xfs_lsn_t xfs_ail_get_push_target(struct xfs_ail *ailp) +{ + return READ_ONCE(ailp->ail_target); +} + +void xfs_ail_push_all_sync(struct xfs_ail *ailp); xfs_lsn_t xfs_ail_min_lsn(struct xfs_ail *ailp); struct xfs_log_item * xfs_trans_ail_cursor_first(struct xfs_ail *ailp, @@ -119,8 +129,19 @@ struct xfs_log_item * xfs_trans_ail_cursor_last(struct xfs_ail *ailp, xfs_lsn_t lsn); struct xfs_log_item * xfs_trans_ail_cursor_next(struct xfs_ail *ailp, struct xfs_ail_cursor *cur); -void xfs_trans_ail_cursor_done(struct xfs_ail *ailp, - struct xfs_ail_cursor *cur); +void xfs_trans_ail_cursor_done(struct xfs_ail_cursor *cur); + +void __xfs_ail_assign_tail_lsn(struct xfs_ail *ailp); + +static inline void +xfs_ail_assign_tail_lsn( + struct xfs_ail *ailp) +{ + + spin_lock(&ailp->ail_lock); + __xfs_ail_assign_tail_lsn(ailp); + spin_unlock(&ailp->ail_lock); +} #if BITS_PER_LONG != 64 static inline void @@ -130,9 +151,9 @@ xfs_trans_ail_copy_lsn( xfs_lsn_t *src) { ASSERT(sizeof(xfs_lsn_t) == 8); /* don't lock if it shrinks */ - spin_lock(&ailp->xa_lock); + spin_lock(&ailp->ail_lock); *dst = *src; - spin_unlock(&ailp->xa_lock); + spin_unlock(&ailp->ail_lock); } #else static inline void @@ -145,4 +166,5 @@ xfs_trans_ail_copy_lsn( *dst = *src; } #endif + #endif /* __XFS_TRANS_PRIV_H__ */ |