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From: "Darrick J. Wong" <djwong@kernel.org>
To: djwong@kernel.org
Cc: linux-xfs@vger.kernel.org, david@fromorbit.com, hch@infradead.org
Subject: [PATCH 01/20] xfs: move xfs_inactive call to xfs_inode_mark_reclaimable
Date: Thu, 29 Jul 2021 11:43:59 -0700	[thread overview]
Message-ID: <162758423915.332903.12021883694187724326.stgit@magnolia> (raw)
In-Reply-To: <162758423315.332903.16799817941903734904.stgit@magnolia>

From: Darrick J. Wong <djwong@kernel.org>

Move the xfs_inactive call and all the other debugging checks and stats
updates into xfs_inode_mark_reclaimable because most of that are
implementation details about the inode cache.  This is preparation for
deferred inactivation that is coming up.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/xfs_icache.c |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_super.c  |   50 --------------------------------------------------
 2 files changed, 49 insertions(+), 50 deletions(-)


diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 086a88b8dfdb..7bc2690da87d 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -292,6 +292,32 @@ xfs_perag_clear_inode_tag(
 	trace_xfs_perag_clear_inode_tag(mp, pag->pag_agno, tag, _RET_IP_);
 }
 
+#ifdef DEBUG
+static void
+xfs_check_delalloc(
+	struct xfs_inode	*ip,
+	int			whichfork)
+{
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	struct xfs_bmbt_irec	got;
+	struct xfs_iext_cursor	icur;
+
+	if (!ifp || !xfs_iext_lookup_extent(ip, ifp, 0, &icur, &got))
+		return;
+	do {
+		if (isnullstartblock(got.br_startblock)) {
+			xfs_warn(ip->i_mount,
+	"ino %llx %s fork has delalloc extent at [0x%llx:0x%llx]",
+				ip->i_ino,
+				whichfork == XFS_DATA_FORK ? "data" : "cow",
+				got.br_startoff, got.br_blockcount);
+		}
+	} while (xfs_iext_next_extent(ifp, &icur, &got));
+}
+#else
+#define xfs_check_delalloc(ip, whichfork)	do { } while (0)
+#endif
+
 /*
  * We set the inode flag atomically with the radix tree tag.
  * Once we get tag lookups on the radix tree, this inode flag
@@ -304,6 +330,29 @@ xfs_inode_mark_reclaimable(
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_perag	*pag;
 
+	xfs_inactive(ip);
+
+	if (!XFS_FORCED_SHUTDOWN(mp) && ip->i_delayed_blks) {
+		xfs_check_delalloc(ip, XFS_DATA_FORK);
+		xfs_check_delalloc(ip, XFS_COW_FORK);
+		ASSERT(0);
+	}
+
+	XFS_STATS_INC(mp, vn_reclaim);
+
+	/*
+	 * We should never get here with one of the reclaim flags already set.
+	 */
+	ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
+	ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIM));
+
+	/*
+	 * We always use background reclaim here because even if the inode is
+	 * clean, it still may be under IO and hence we have wait for IO
+	 * completion to occur before we can reclaim the inode. The background
+	 * reclaim path handles this more efficiently than we can here, so
+	 * simply let background reclaim tear down all inodes.
+	 */
 	pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ip->i_ino));
 	spin_lock(&pag->pag_ici_lock);
 	spin_lock(&ip->i_flags_lock);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 36fc81e52dc2..ef89a9a3ba9e 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -591,32 +591,6 @@ xfs_fs_alloc_inode(
 	return NULL;
 }
 
-#ifdef DEBUG
-static void
-xfs_check_delalloc(
-	struct xfs_inode	*ip,
-	int			whichfork)
-{
-	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
-	struct xfs_bmbt_irec	got;
-	struct xfs_iext_cursor	icur;
-
-	if (!ifp || !xfs_iext_lookup_extent(ip, ifp, 0, &icur, &got))
-		return;
-	do {
-		if (isnullstartblock(got.br_startblock)) {
-			xfs_warn(ip->i_mount,
-	"ino %llx %s fork has delalloc extent at [0x%llx:0x%llx]",
-				ip->i_ino,
-				whichfork == XFS_DATA_FORK ? "data" : "cow",
-				got.br_startoff, got.br_blockcount);
-		}
-	} while (xfs_iext_next_extent(ifp, &icur, &got));
-}
-#else
-#define xfs_check_delalloc(ip, whichfork)	do { } while (0)
-#endif
-
 /*
  * Now that the generic code is guaranteed not to be accessing
  * the linux inode, we can inactivate and reclaim the inode.
@@ -632,30 +606,6 @@ xfs_fs_destroy_inode(
 	ASSERT(!rwsem_is_locked(&inode->i_rwsem));
 	XFS_STATS_INC(ip->i_mount, vn_rele);
 	XFS_STATS_INC(ip->i_mount, vn_remove);
-
-	xfs_inactive(ip);
-
-	if (!XFS_FORCED_SHUTDOWN(ip->i_mount) && ip->i_delayed_blks) {
-		xfs_check_delalloc(ip, XFS_DATA_FORK);
-		xfs_check_delalloc(ip, XFS_COW_FORK);
-		ASSERT(0);
-	}
-
-	XFS_STATS_INC(ip->i_mount, vn_reclaim);
-
-	/*
-	 * We should never get here with one of the reclaim flags already set.
-	 */
-	ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
-	ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIM));
-
-	/*
-	 * We always use background reclaim here because even if the inode is
-	 * clean, it still may be under IO and hence we have wait for IO
-	 * completion to occur before we can reclaim the inode. The background
-	 * reclaim path handles this more efficiently than we can here, so
-	 * simply let background reclaim tear down all inodes.
-	 */
 	xfs_inode_mark_reclaimable(ip);
 }
 


  reply	other threads:[~2021-07-29 18:44 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29 18:43 [PATCHSET v8 00/20] xfs: deferred inode inactivation Darrick J. Wong
2021-07-29 18:43 ` Darrick J. Wong [this message]
2021-07-29 18:44 ` [PATCH 02/20] xfs: detach dquots from inode if we don't need to inactivate it Darrick J. Wong
2021-07-29 18:44 ` [PATCH 03/20] xfs: defer inode inactivation to a workqueue Darrick J. Wong
2021-07-30  4:24   ` Dave Chinner
2021-07-31  4:21     ` Darrick J. Wong
2021-08-01 21:49       ` Dave Chinner
2021-08-01 23:47         ` Dave Chinner
2021-08-03  8:34   ` [PATCH, alternative] xfs: per-cpu deferred inode inactivation queues Dave Chinner
2021-08-03 20:20     ` Darrick J. Wong
2021-08-04  3:20     ` [PATCH, alternative v2] " Darrick J. Wong
2021-08-04 10:03       ` [PATCH] xfs: inodegc needs to stop before freeze Dave Chinner
2021-08-04 12:37         ` Dave Chinner
2021-08-04 10:46       ` [PATCH] xfs: don't run inodegc flushes when inodegc is not active Dave Chinner
2021-08-04 16:20         ` Darrick J. Wong
2021-08-04 11:09       ` [PATCH, alternative v2] xfs: per-cpu deferred inode inactivation queues Dave Chinner
2021-08-04 15:59         ` Darrick J. Wong
2021-08-04 21:35           ` Dave Chinner
2021-08-04 11:49       ` [PATCH, pre-03/20 #1] xfs: introduce CPU hotplug infrastructure Dave Chinner
2021-08-04 11:50       ` [PATCH, pre-03/20 #2] xfs: introduce all-mounts list for cpu hotplug notifications Dave Chinner
2021-08-04 16:06         ` Darrick J. Wong
2021-08-04 21:17           ` Dave Chinner
2021-08-04 11:52       ` [PATCH, post-03/20 1/1] xfs: hook up inodegc to CPU dead notification Dave Chinner
2021-08-04 16:19         ` Darrick J. Wong
2021-08-04 21:48           ` Dave Chinner
2021-07-29 18:44 ` [PATCH 04/20] xfs: throttle inode inactivation queuing on memory reclaim Darrick J. Wong
2021-07-29 18:44 ` [PATCH 05/20] xfs: don't throttle memory reclaim trying to queue inactive inodes Darrick J. Wong
2021-07-29 18:44 ` [PATCH 06/20] xfs: throttle inodegc queuing on backlog Darrick J. Wong
2021-08-02  0:45   ` Dave Chinner
2021-08-02  1:30     ` Dave Chinner
2021-07-29 18:44 ` [PATCH 07/20] xfs: queue inodegc worker immediately when memory is tight Darrick J. Wong
2021-07-29 18:44 ` [PATCH 08/20] xfs: expose sysfs knob to control inode inactivation delay Darrick J. Wong
2021-07-29 18:44 ` [PATCH 09/20] xfs: reduce inactivation delay when free space is tight Darrick J. Wong
2021-07-29 18:44 ` [PATCH 10/20] xfs: reduce inactivation delay when quota are tight Darrick J. Wong
2021-07-29 18:44 ` [PATCH 11/20] xfs: reduce inactivation delay when realtime extents " Darrick J. Wong
2021-07-29 18:44 ` [PATCH 12/20] xfs: inactivate inodes any time we try to free speculative preallocations Darrick J. Wong
2021-07-29 18:45 ` [PATCH 13/20] xfs: flush inode inactivation work when compiling usage statistics Darrick J. Wong
2021-07-29 18:45 ` [PATCH 14/20] xfs: parallelize inode inactivation Darrick J. Wong
2021-08-02  0:55   ` Dave Chinner
2021-08-02 21:33     ` Darrick J. Wong
2021-07-29 18:45 ` [PATCH 15/20] xfs: reduce inactivation delay when AG free space are tight Darrick J. Wong
2021-07-29 18:45 ` [PATCH 16/20] xfs: queue inodegc worker immediately on backlog Darrick J. Wong
2021-07-29 18:45 ` [PATCH 17/20] xfs: don't run speculative preallocation gc when fs is frozen Darrick J. Wong
2021-07-29 18:45 ` [PATCH 18/20] xfs: scale speculative preallocation gc delay based on free space Darrick J. Wong
2021-07-29 18:45 ` [PATCH 19/20] xfs: use background worker pool when transactions can't get " Darrick J. Wong
2021-07-29 18:45 ` [PATCH 20/20] xfs: avoid buffer deadlocks when walking fs inodes Darrick J. Wong
2021-08-02 10:35 ` [PATCHSET v8 00/20] xfs: deferred inode inactivation Dave Chinner

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