From f9296569837c3fd66ae32717b0f8f5a26758b4b7 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Fri, 22 Jan 2021 16:48:39 -0800
Subject: [PATCH] xfs: relocate the eofb/cowb workqueue functions

Move the xfs_{eof,cow}blocks_worker and xfs_queue_{eof,cow}blocks
functions further down in the file so that the cleanups in the next
patches won't have to pre-declare static functions.  No functional
changes.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_icache.c | 126 ++++++++++++++++++++++++++--------------------------
 1 file changed, 63 insertions(+), 63 deletions(-)

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 0d81330..ae0c14d 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -916,69 +916,6 @@ xfs_inode_walk(
 }
 
 /*
- * Background scanning to trim post-EOF preallocated space. This is queued
- * based on the 'speculative_prealloc_lifetime' tunable (5m by default).
- */
-void
-xfs_queue_eofblocks(
-	struct xfs_mount *mp)
-{
-	rcu_read_lock();
-	if (radix_tree_tagged(&mp->m_perag_tree, XFS_ICI_EOFBLOCKS_TAG))
-		queue_delayed_work(mp->m_eofblocks_workqueue,
-				   &mp->m_eofblocks_work,
-				   msecs_to_jiffies(xfs_eofb_secs * 1000));
-	rcu_read_unlock();
-}
-
-void
-xfs_eofblocks_worker(
-	struct work_struct *work)
-{
-	struct xfs_mount *mp = container_of(to_delayed_work(work),
-				struct xfs_mount, m_eofblocks_work);
-
-	if (!sb_start_write_trylock(mp->m_super))
-		return;
-	xfs_icache_free_eofblocks(mp, NULL);
-	sb_end_write(mp->m_super);
-
-	xfs_queue_eofblocks(mp);
-}
-
-/*
- * Background scanning to trim preallocated CoW space. This is queued
- * based on the 'speculative_cow_prealloc_lifetime' tunable (5m by default).
- * (We'll just piggyback on the post-EOF prealloc space workqueue.)
- */
-void
-xfs_queue_cowblocks(
-	struct xfs_mount *mp)
-{
-	rcu_read_lock();
-	if (radix_tree_tagged(&mp->m_perag_tree, XFS_ICI_COWBLOCKS_TAG))
-		queue_delayed_work(mp->m_eofblocks_workqueue,
-				   &mp->m_cowblocks_work,
-				   msecs_to_jiffies(xfs_cowb_secs * 1000));
-	rcu_read_unlock();
-}
-
-void
-xfs_cowblocks_worker(
-	struct work_struct *work)
-{
-	struct xfs_mount *mp = container_of(to_delayed_work(work),
-				struct xfs_mount, m_cowblocks_work);
-
-	if (!sb_start_write_trylock(mp->m_super))
-		return;
-	xfs_icache_free_cowblocks(mp, NULL);
-	sb_end_write(mp->m_super);
-
-	xfs_queue_cowblocks(mp);
-}
-
-/*
  * Grab the inode for reclaim exclusively.
  *
  * We have found this inode via a lookup under RCU, so the inode may have
@@ -1396,6 +1333,37 @@ xfs_icache_free_eofblocks(
 			XFS_ICI_EOFBLOCKS_TAG);
 }
 
+/*
+ * Background scanning to trim post-EOF preallocated space. This is queued
+ * based on the 'speculative_prealloc_lifetime' tunable (5m by default).
+ */
+void
+xfs_queue_eofblocks(
+	struct xfs_mount *mp)
+{
+	rcu_read_lock();
+	if (radix_tree_tagged(&mp->m_perag_tree, XFS_ICI_EOFBLOCKS_TAG))
+		queue_delayed_work(mp->m_eofblocks_workqueue,
+				   &mp->m_eofblocks_work,
+				   msecs_to_jiffies(xfs_eofb_secs * 1000));
+	rcu_read_unlock();
+}
+
+void
+xfs_eofblocks_worker(
+	struct work_struct *work)
+{
+	struct xfs_mount *mp = container_of(to_delayed_work(work),
+				struct xfs_mount, m_eofblocks_work);
+
+	if (!sb_start_write_trylock(mp->m_super))
+		return;
+	xfs_icache_free_eofblocks(mp, NULL);
+	sb_end_write(mp->m_super);
+
+	xfs_queue_eofblocks(mp);
+}
+
 static inline unsigned long
 xfs_iflag_for_tag(
 	int		tag)
@@ -1608,6 +1576,38 @@ xfs_icache_free_cowblocks(
 			XFS_ICI_COWBLOCKS_TAG);
 }
 
+/*
+ * Background scanning to trim preallocated CoW space. This is queued
+ * based on the 'speculative_cow_prealloc_lifetime' tunable (5m by default).
+ * (We'll just piggyback on the post-EOF prealloc space workqueue.)
+ */
+void
+xfs_queue_cowblocks(
+	struct xfs_mount *mp)
+{
+	rcu_read_lock();
+	if (radix_tree_tagged(&mp->m_perag_tree, XFS_ICI_COWBLOCKS_TAG))
+		queue_delayed_work(mp->m_eofblocks_workqueue,
+				   &mp->m_cowblocks_work,
+				   msecs_to_jiffies(xfs_cowb_secs * 1000));
+	rcu_read_unlock();
+}
+
+void
+xfs_cowblocks_worker(
+	struct work_struct *work)
+{
+	struct xfs_mount *mp = container_of(to_delayed_work(work),
+				struct xfs_mount, m_cowblocks_work);
+
+	if (!sb_start_write_trylock(mp->m_super))
+		return;
+	xfs_icache_free_cowblocks(mp, NULL);
+	sb_end_write(mp->m_super);
+
+	xfs_queue_cowblocks(mp);
+}
+
 void
 xfs_inode_set_cowblocks_tag(
 	xfs_inode_t	*ip)
-- 
2.7.4