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
next prev 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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