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From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: Dave Chinner <david@fromorbit.com>
Subject: [PATCH 08/14] xfs: move xlog_state_do_iclog_callbacks up
Date: Mon, 16 Mar 2020 15:42:27 +0100	[thread overview]
Message-ID: <20200316144233.900390-9-hch@lst.de> (raw)
In-Reply-To: <20200316144233.900390-1-hch@lst.de>

Move xlog_state_do_iclog_callbacks a little up, to avoid the need for a
forward declaration with upcoming changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_log.c | 74 ++++++++++++++++++++++++------------------------
 1 file changed, 37 insertions(+), 37 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index c490c5b0d8b7..c534d7007aa3 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -2701,6 +2701,43 @@ xlog_state_set_callback(
 	xlog_grant_push_ail(log, 0);
 }
 
+/*
+ * Keep processing entries in the iclog callback list until we come around and
+ * it is empty.  We need to atomically see that the list is empty and change the
+ * state to DIRTY so that we don't miss any more callbacks being added.
+ *
+ * This function is called with the icloglock held and returns with it held. We
+ * drop it while running callbacks, however, as holding it over thousands of
+ * callbacks is unnecessary and causes excessive contention if we do.
+ */
+static void
+xlog_state_do_iclog_callbacks(
+	struct xlog		*log,
+	struct xlog_in_core	*iclog)
+		__releases(&log->l_icloglock)
+		__acquires(&log->l_icloglock)
+{
+	spin_unlock(&log->l_icloglock);
+	spin_lock(&iclog->ic_callback_lock);
+	while (!list_empty(&iclog->ic_callbacks)) {
+		LIST_HEAD(tmp);
+
+		list_splice_init(&iclog->ic_callbacks, &tmp);
+
+		spin_unlock(&iclog->ic_callback_lock);
+		xlog_cil_process_committed(&tmp);
+		spin_lock(&iclog->ic_callback_lock);
+	}
+
+	/*
+	 * Pick up the icloglock while still holding the callback lock so we
+	 * serialise against anyone trying to add more callbacks to this iclog
+	 * now we've finished processing.
+	 */
+	spin_lock(&log->l_icloglock);
+	spin_unlock(&iclog->ic_callback_lock);
+}
+
 /*
  * Return true if we need to stop processing, false to continue to the next
  * iclog. The caller will need to run callbacks if the iclog is returned in the
@@ -2754,43 +2791,6 @@ xlog_state_iodone_process_iclog(
 	}
 }
 
-/*
- * Keep processing entries in the iclog callback list until we come around and
- * it is empty.  We need to atomically see that the list is empty and change the
- * state to DIRTY so that we don't miss any more callbacks being added.
- *
- * This function is called with the icloglock held and returns with it held. We
- * drop it while running callbacks, however, as holding it over thousands of
- * callbacks is unnecessary and causes excessive contention if we do.
- */
-static void
-xlog_state_do_iclog_callbacks(
-	struct xlog		*log,
-	struct xlog_in_core	*iclog)
-		__releases(&log->l_icloglock)
-		__acquires(&log->l_icloglock)
-{
-	spin_unlock(&log->l_icloglock);
-	spin_lock(&iclog->ic_callback_lock);
-	while (!list_empty(&iclog->ic_callbacks)) {
-		LIST_HEAD(tmp);
-
-		list_splice_init(&iclog->ic_callbacks, &tmp);
-
-		spin_unlock(&iclog->ic_callback_lock);
-		xlog_cil_process_committed(&tmp);
-		spin_lock(&iclog->ic_callback_lock);
-	}
-
-	/*
-	 * Pick up the icloglock while still holding the callback lock so we
-	 * serialise against anyone trying to add more callbacks to this iclog
-	 * now we've finished processing.
-	 */
-	spin_lock(&log->l_icloglock);
-	spin_unlock(&iclog->ic_callback_lock);
-}
-
 STATIC void
 xlog_state_do_callback(
 	struct xlog		*log)
-- 
2.24.1


  parent reply	other threads:[~2020-03-16 14:51 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-16 14:42 cleanup log I/O error handling v2 Christoph Hellwig
2020-03-16 14:42 ` [PATCH 01/14] xfs: merge xlog_cil_push into xlog_cil_push_work Christoph Hellwig
2020-03-16 19:40   ` Darrick J. Wong
2020-03-17  0:15   ` Dave Chinner
2020-03-17 13:23   ` Brian Foster
2020-03-16 14:42 ` [PATCH 02/14] xfs: factor out a xlog_wait_on_iclog helper Christoph Hellwig
2020-03-16 20:20   ` Darrick J. Wong
2020-03-17 13:23   ` Brian Foster
2020-03-16 14:42 ` [PATCH 03/14] xfs: simplify the xfs_log_release_iclog calling convention Christoph Hellwig
2020-03-16 20:21   ` Darrick J. Wong
2020-03-17 13:23   ` Brian Foster
2020-03-16 14:42 ` [PATCH 04/14] xfs: simplify log shutdown checking in xfs_log_release_iclog Christoph Hellwig
2020-03-16 20:33   ` Darrick J. Wong
2020-03-17 13:24   ` Brian Foster
2020-03-16 14:42 ` [PATCH 05/14] xfs: remove the aborted parameter to xlog_state_done_syncing Christoph Hellwig
2020-03-16 20:50   ` Darrick J. Wong
2020-03-18  9:38     ` Christoph Hellwig
2020-03-17 13:24   ` Brian Foster
2020-03-16 14:42 ` [PATCH 06/14] xfs: refactor xlog_state_clean_iclog Christoph Hellwig
2020-03-16 20:59   ` Darrick J. Wong
2020-03-17 13:25   ` Brian Foster
2020-03-18  9:40     ` Christoph Hellwig
2020-03-16 14:42 ` [PATCH 07/14] xfs: move the ioerror check out of xlog_state_clean_iclog Christoph Hellwig
2020-03-16 21:00   ` Darrick J. Wong
2020-03-17 13:25   ` Brian Foster
2020-03-16 14:42 ` Christoph Hellwig [this message]
2020-03-16 21:00   ` [PATCH 08/14] xfs: move xlog_state_do_iclog_callbacks up Darrick J. Wong
2020-03-18 14:44   ` Brian Foster
2020-03-16 14:42 ` [PATCH 09/14] xfs: move log shut down handling out of xlog_state_iodone_process_iclog Christoph Hellwig
2020-03-16 21:02   ` Darrick J. Wong
2020-03-18 14:48   ` Brian Foster
2020-03-18 16:34     ` Christoph Hellwig
2020-03-19 11:36       ` Brian Foster
2020-03-19 13:05         ` Christoph Hellwig
2020-03-19 13:37           ` Brian Foster
2020-03-16 14:42 ` [PATCH 10/14] xfs: refactor xlog_state_iodone_process_iclog Christoph Hellwig
2020-03-16 21:07   ` Darrick J. Wong
2020-03-16 14:42 ` [PATCH 11/14] xfs: merge xlog_state_clean_iclog into xlog_state_iodone_process_iclog Christoph Hellwig
2020-03-16 21:09   ` Darrick J. Wong
2020-03-18 14:48   ` Brian Foster
2020-03-16 14:42 ` [PATCH 12/14] xfs: merge xlog_state_set_callback " Christoph Hellwig
2020-03-16 21:10   ` Darrick J. Wong
2020-03-18 14:48   ` Brian Foster
2020-03-16 14:42 ` [PATCH 13/14] xfs: remove xlog_state_want_sync Christoph Hellwig
2020-03-16 21:23   ` Darrick J. Wong
2020-03-18 14:48   ` Brian Foster
2020-03-16 14:42 ` [PATCH 14/14] xfs: remove XLOG_STATE_IOERROR Christoph Hellwig
2020-03-16 21:25   ` Darrick J. Wong
2020-03-18  9:43     ` Christoph Hellwig

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