From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Sat, 13 Sep 2008 07:56:47 -0700 (PDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.168.29]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m8DEuaqr022258 for ; Sat, 13 Sep 2008 07:56:36 -0700 Received: from ipmail05.adl2.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 84C5A7A75D5 for ; Sat, 13 Sep 2008 07:58:05 -0700 (PDT) Received: from ipmail05.adl2.internode.on.net (ipmail05.adl2.internode.on.net [203.16.214.145]) by cuda.sgi.com with ESMTP id K77I7OFg3Sw6SkGh for ; Sat, 13 Sep 2008 07:58:05 -0700 (PDT) Received: from dave by disturbed with local (Exim 4.69) (envelope-from ) id 1KeWZS-0002Ny-51 for xfs@oss.sgi.com; Sun, 14 Sep 2008 00:57:58 +1000 From: Dave Chinner Subject: [PATCH 5/8] XFS: Move the AIL lock into the struct xfs_ail Date: Sun, 14 Sep 2008 00:57:54 +1000 Message-Id: <1221317877-8333-6-git-send-email-david@fromorbit.com> In-Reply-To: <1221317877-8333-1-git-send-email-david@fromorbit.com> References: <1221317877-8333-1-git-send-email-david@fromorbit.com> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: xfs@oss.sgi.com Bring the ail lock inside the struct xfs_ail. This means the AIL can be entirely manipulated via the struct xfs_ail rather than needing both the struct xfs_mount and the struct xfs_ail. Signed-off-by: Dave Chinner --- fs/xfs/quota/xfs_dquot.c | 4 +- fs/xfs/quota/xfs_dquot_item.c | 2 +- fs/xfs/xfs_buf_item.c | 4 +- fs/xfs/xfs_extfree_item.c | 12 ++++---- fs/xfs/xfs_inode.c | 4 +- fs/xfs/xfs_inode_item.c | 8 +++--- fs/xfs/xfs_log.c | 1 - fs/xfs/xfs_log_recover.c | 16 ++++++------ fs/xfs/xfs_mount.h | 1 - fs/xfs/xfs_trans.c | 4 +- fs/xfs/xfs_trans_ail.c | 56 +++++++++++++++++++++------------------- fs/xfs/xfs_trans_priv.h | 5 ++- 12 files changed, 59 insertions(+), 58 deletions(-) diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c index 8e30a10..29a7aa7 100644 --- a/fs/xfs/quota/xfs_dquot.c +++ b/fs/xfs/quota/xfs_dquot.c @@ -1335,7 +1335,7 @@ xfs_qm_dqflush_done( if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) && qip->qli_item.li_lsn == qip->qli_flush_lsn) { - spin_lock(&dqp->q_mount->m_ail_lock); + spin_lock(&dqp->q_mount->m_ail->xa_lock); /* * xfs_trans_delete_ail() drops the AIL lock. */ @@ -1343,7 +1343,7 @@ xfs_qm_dqflush_done( xfs_trans_delete_ail(dqp->q_mount, (xfs_log_item_t*)qip); else - spin_unlock(&dqp->q_mount->m_ail_lock); + spin_unlock(&dqp->q_mount->m_ail->xa_lock); } /* diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c index f028644..478077c 100644 --- a/fs/xfs/quota/xfs_dquot_item.c +++ b/fs/xfs/quota/xfs_dquot_item.c @@ -570,7 +570,7 @@ xfs_qm_qoffend_logitem_committed( xfs_qoff_logitem_t *qfs; qfs = qfe->qql_start_lip; - spin_lock(&qfs->qql_item.li_mountp->m_ail_lock); + spin_lock(&qfs->qql_item.li_mountp->m_ail->xa_lock); /* * Delete the qoff-start logitem from the AIL. * xfs_trans_delete_ail() drops the AIL lock. diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 608c30c..7f1e266 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -408,7 +408,7 @@ xfs_buf_item_unpin( XFS_BUF_SET_FSPRIVATE(bp, NULL); XFS_BUF_CLR_IODONE_FUNC(bp); } else { - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip); xfs_buf_item_relse(bp); ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL); @@ -1131,7 +1131,7 @@ xfs_buf_iodone( * * Either way, AIL is useless if we're forcing a shutdown. */ - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); /* * xfs_trans_delete_ail() drops the AIL lock. */ diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c index 8aa28f7..f1dcd80 100644 --- a/fs/xfs/xfs_extfree_item.c +++ b/fs/xfs/xfs_extfree_item.c @@ -111,7 +111,7 @@ xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale) xfs_mount_t *mp; mp = efip->efi_item.li_mountp; - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); if (efip->efi_flags & XFS_EFI_CANCELED) { /* * xfs_trans_delete_ail() drops the AIL lock. @@ -120,7 +120,7 @@ xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale) xfs_efi_item_free(efip); } else { efip->efi_flags |= XFS_EFI_COMMITTED; - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } } @@ -138,7 +138,7 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp) xfs_log_item_desc_t *lidp; mp = efip->efi_item.li_mountp; - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); if (efip->efi_flags & XFS_EFI_CANCELED) { /* * free the xaction descriptor pointing to this item @@ -153,7 +153,7 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp) xfs_efi_item_free(efip); } else { efip->efi_flags |= XFS_EFI_COMMITTED; - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } } @@ -352,7 +352,7 @@ xfs_efi_release(xfs_efi_log_item_t *efip, ASSERT(efip->efi_next_extent > 0); ASSERT(efip->efi_flags & XFS_EFI_COMMITTED); - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); ASSERT(efip->efi_next_extent >= nextents); efip->efi_next_extent -= nextents; extents_left = efip->efi_next_extent; @@ -363,7 +363,7 @@ xfs_efi_release(xfs_efi_log_item_t *efip, xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip); xfs_efi_item_free(efip); } else { - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } } diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 448f507..884f22f 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2718,11 +2718,11 @@ xfs_idestroy( ASSERT(((lip->li_flags & XFS_LI_IN_AIL) == 0) || XFS_FORCED_SHUTDOWN(ip->i_mount)); if (lip->li_flags & XFS_LI_IN_AIL) { - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); if (lip->li_flags & XFS_LI_IN_AIL) xfs_trans_delete_ail(mp, lip); else - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } xfs_inode_item_destroy(ip); ip->i_itemp = NULL; diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 97c7452..291d30a 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -991,7 +991,7 @@ xfs_iflush_done( */ if (iip->ili_logged && (iip->ili_item.li_lsn == iip->ili_flush_lsn)) { - spin_lock(&ip->i_mount->m_ail_lock); + spin_lock(&ip->i_mount->m_ail->xa_lock); if (iip->ili_item.li_lsn == iip->ili_flush_lsn) { /* * xfs_trans_delete_ail() drops the AIL lock. @@ -999,7 +999,7 @@ xfs_iflush_done( xfs_trans_delete_ail(ip->i_mount, (xfs_log_item_t*)iip); } else { - spin_unlock(&ip->i_mount->m_ail_lock); + spin_unlock(&ip->i_mount->m_ail->xa_lock); } } @@ -1038,14 +1038,14 @@ xfs_iflush_abort( mp = ip->i_mount; if (iip) { if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { /* * xfs_trans_delete_ail() drops the AIL lock. */ xfs_trans_delete_ail(mp, (xfs_log_item_t *)iip); } else - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } iip->ili_logged = 0; /* diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 70f5063..d3d7042 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -539,7 +539,6 @@ xfs_log_mount( /* * Initialize the AIL now we have a log. */ - spin_lock_init(&mp->m_ail_lock); error = xfs_trans_ail_init(mp); if (error) { cmn_err(CE_WARN, "XFS: AIL initialisation failed: error %d", error); diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 46ef060..a2d6d78 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -2684,7 +2684,7 @@ xlog_recover_do_efi_trans( efip->efi_next_extent = efi_formatp->efi_nextents; efip->efi_flags |= XFS_EFI_COMMITTED; - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); /* * xfs_trans_update_ail() drops the AIL lock. */ @@ -2730,7 +2730,7 @@ xlog_recover_do_efd_trans( * in the AIL. */ mp = log->l_mp; - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); lip = xfs_trans_ail_cursor_first(mp->m_ail, &cur, 0); while (lip != NULL) { if (lip->li_type == XFS_LI_EFI) { @@ -2742,14 +2742,14 @@ xlog_recover_do_efd_trans( */ xfs_trans_delete_ail(mp, lip); xfs_efi_item_free(efip); - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); break; } } lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); } xfs_trans_ail_cursor_done(mp->m_ail, &cur); - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } /* @@ -3079,7 +3079,7 @@ xlog_recover_process_efis( struct xfs_ail_cursor cur; mp = log->l_mp; - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); lip = xfs_trans_ail_cursor_first(mp->m_ail, &cur, 0); while (lip != NULL) { @@ -3100,16 +3100,16 @@ xlog_recover_process_efis( continue; } - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); error = xlog_recover_process_efi(mp, efip); - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); if (error) goto out; lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); } out: xfs_trans_ail_cursor_done(mp->m_ail, &cur); - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); return error; } diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index a24b407..b9c24c3 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -228,7 +228,6 @@ extern void xfs_icsb_sync_counters_locked(struct xfs_mount *, int); typedef struct xfs_mount { struct super_block *m_super; xfs_tid_t m_tid; /* next unused tid for fs */ - spinlock_t m_ail_lock; /* fs AIL mutex */ struct xfs_ail *m_ail; /* fs active log item list */ xfs_sb_t m_sb; /* copy of fs superblock */ spinlock_t m_sb_lock; /* sb counter lock */ diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 4e1c22a..99ba0e2 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -1425,7 +1425,7 @@ xfs_trans_chunk_committed( * the test below. */ mp = lip->li_mountp; - spin_lock(&mp->m_ail_lock); + spin_lock(&mp->m_ail->xa_lock); if (XFS_LSN_CMP(item_lsn, lip->li_lsn) > 0) { /* * This will set the item's lsn to item_lsn @@ -1436,7 +1436,7 @@ xfs_trans_chunk_committed( */ xfs_trans_update_ail(mp, lip, item_lsn); } else { - spin_unlock(&mp->m_ail_lock); + spin_unlock(&mp->m_ail->xa_lock); } /* diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index 0591888..e06b62f 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. + * Copyright (c) 2008 Dave Chinner * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -56,14 +57,14 @@ xfs_trans_ail_tail( xfs_lsn_t lsn; xfs_log_item_t *lip; - spin_lock(&ailp->xa_mount->m_ail_lock); + spin_lock(&ailp->xa_lock); lip = xfs_ail_min(ailp); if (lip == NULL) { lsn = (xfs_lsn_t)0; } else { lsn = lip->li_lsn; } - spin_unlock(&ailp->xa_mount->m_ail_lock); + spin_unlock(&ailp->xa_lock); return lsn; } @@ -214,14 +215,14 @@ xfsaild_push( xfs_mount_t *mp = ailp->xa_mount; struct xfs_ail_cursor *cur = &ailp->xa_cursors; - spin_lock(&mp->m_ail_lock); + spin_lock(&ailp->xa_lock); lip = xfs_trans_ail_cursor_first(ailp, cur, *last_lsn); if (!lip || XFS_FORCED_SHUTDOWN(mp)) { /* * AIL is empty or our push has reached the end. */ xfs_trans_ail_cursor_done(ailp, cur); - spin_unlock(&mp->m_ail_lock); + spin_unlock(&ailp->xa_lock); last_pushed_lsn = 0; return tout; } @@ -256,7 +257,7 @@ xfsaild_push( * skip to the next item in the list. */ lock_result = IOP_TRYLOCK(lip); - spin_unlock(&mp->m_ail_lock); + spin_unlock(&ailp->xa_lock); switch (lock_result) { case XFS_ITEM_SUCCESS: XFS_STATS_INC(xs_push_ail_success); @@ -293,7 +294,7 @@ xfsaild_push( break; } - spin_lock(&mp->m_ail_lock); + spin_lock(&ailp->xa_lock); /* should we bother continuing? */ if (XFS_FORCED_SHUTDOWN(mp)) break; @@ -322,7 +323,7 @@ xfsaild_push( lsn = lip->li_lsn; } xfs_trans_ail_cursor_done(ailp, cur); - spin_unlock(&mp->m_ail_lock); + spin_unlock(&ailp->xa_lock); if (flush_log) { /* @@ -423,30 +424,31 @@ void xfs_trans_update_ail( xfs_mount_t *mp, xfs_log_item_t *lip, - xfs_lsn_t lsn) __releases(mp->m_ail_lock) + xfs_lsn_t lsn) __releases(ailp->xa_lock) { - xfs_log_item_t *dlip=NULL; + struct xfs_ail *ailp = mp->m_ail; + xfs_log_item_t *dlip = NULL; xfs_log_item_t *mlip; /* ptr to minimum lip */ - mlip = xfs_ail_min(mp->m_ail); + mlip = xfs_ail_min(ailp); if (lip->li_flags & XFS_LI_IN_AIL) { - dlip = xfs_ail_delete(mp->m_ail, lip); + dlip = xfs_ail_delete(ailp, lip); ASSERT(dlip == lip); - xfs_trans_ail_cursor_clear(mp->m_ail, dlip); + xfs_trans_ail_cursor_clear(ailp, dlip); } else { lip->li_flags |= XFS_LI_IN_AIL; } lip->li_lsn = lsn; - xfs_ail_insert(mp->m_ail, lip); + xfs_ail_insert(ailp, lip); if (mlip == dlip) { - mlip = xfs_ail_min(mp->m_ail); - spin_unlock(&mp->m_ail_lock); + mlip = xfs_ail_min(ailp); + spin_unlock(&ailp->xa_lock); xfs_log_move_tail(mp, mlip->li_lsn); } else { - spin_unlock(&mp->m_ail_lock); + spin_unlock(&ailp->xa_lock); } @@ -470,27 +472,28 @@ xfs_trans_update_ail( void xfs_trans_delete_ail( xfs_mount_t *mp, - xfs_log_item_t *lip) __releases(mp->m_ail_lock) + xfs_log_item_t *lip) __releases(ailp->xa_lock) { + struct xfs_ail *ailp = mp->m_ail; xfs_log_item_t *dlip; xfs_log_item_t *mlip; if (lip->li_flags & XFS_LI_IN_AIL) { - mlip = xfs_ail_min(mp->m_ail); - dlip = xfs_ail_delete(mp->m_ail, lip); + mlip = xfs_ail_min(ailp); + dlip = xfs_ail_delete(ailp, lip); ASSERT(dlip == lip); - xfs_trans_ail_cursor_clear(mp->m_ail, dlip); + xfs_trans_ail_cursor_clear(ailp, dlip); lip->li_flags &= ~XFS_LI_IN_AIL; lip->li_lsn = 0; if (mlip == dlip) { - mlip = xfs_ail_min(mp->m_ail); - spin_unlock(&mp->m_ail_lock); + mlip = xfs_ail_min(ailp); + spin_unlock(&ailp->xa_lock); xfs_log_move_tail(mp, (mlip ? mlip->li_lsn : 0)); } else { - spin_unlock(&mp->m_ail_lock); + spin_unlock(&ailp->xa_lock); } } else { @@ -498,13 +501,11 @@ xfs_trans_delete_ail( * If the file system is not being shutdown, we are in * serious trouble if we get to this stage. */ - if (XFS_FORCED_SHUTDOWN(mp)) - spin_unlock(&mp->m_ail_lock); - else { + spin_unlock(&ailp->xa_lock); + if (!XFS_FORCED_SHUTDOWN(mp)) { xfs_cmn_err(XFS_PTAG_AILDELETE, CE_ALERT, mp, "%s: attempting to delete a log item that is not in the AIL", __func__); - spin_unlock(&mp->m_ail_lock); xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); } } @@ -539,6 +540,7 @@ xfs_trans_ail_init( ailp->xa_mount = mp; INIT_LIST_HEAD(&ailp->xa_ail); + spin_lock_init(&ailp->xa_lock); error = xfsaild_start(ailp); if (error) goto out_free_ailp; diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h index c6ea7fe..32f67fa 100644 --- a/fs/xfs/xfs_trans_priv.h +++ b/fs/xfs/xfs_trans_priv.h @@ -76,6 +76,7 @@ struct xfs_ail { struct task_struct *xa_task; xfs_lsn_t xa_target; struct xfs_ail_cursor xa_cursors; + spinlock_t xa_lock; }; /* @@ -111,9 +112,9 @@ 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_mount->m_ail_lock); + spin_lock(&ailp->xa_lock); *dst = *src; - spin_unlock(&ailp->xa_mount->m_ail_lock); + spin_unlock(&ailp->xa_lock); } #else static inline void -- 1.5.6