[PATCH 2/5] xfs: detach inode dquots at the end of inactivation

From: "Darrick J. Wong" <djwong@kernel.org>
To: djwong@kernel.org
Cc: linux-xfs@vger.kernel.org, hch@infradead.org
Subject: [PATCH 2/5] xfs: detach inode dquots at the end of inactivation
Date: Mon, 31 May 2021 15:41:02 -0700	[thread overview]
Message-ID: <162250086215.490412.4278433430856337071.stgit@locust> (raw)
In-Reply-To: <162250085103.490412.4291071116538386696.stgit@locust>

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

Once we're done with inactivating an inode, we're finished updating
metadata for that inode.  This means that we can detach the dquots at
the end and not have to wait for reclaim to do it for us.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/xfs_icache.c |    2 +-
 fs/xfs/xfs_inode.c  |   22 +++++++++++-----------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 32c17e84efa0..34b8b5fbd60d 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -1080,7 +1080,7 @@ xfs_reclaim_inode(
 	 * unlocked after the lookup before we go ahead and free it.
 	 */
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_qm_dqdetach(ip);
+	ASSERT(!ip->i_udquot && !ip->i_gdquot && !ip->i_pdquot);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	ASSERT(xfs_inode_clean(ip));
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 1e28997c6f78..718ab0c17b9d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1713,7 +1713,7 @@ xfs_inactive(
 	 */
 	if (VFS_I(ip)->i_mode == 0) {
 		ASSERT(ip->i_df.if_broot_bytes == 0);
-		return;
+		goto out;
 	}
 
 	mp = ip->i_mount;
@@ -1721,11 +1721,11 @@ xfs_inactive(
 
 	/* If this is a read-only mount, don't do this (would generate I/O) */
 	if (mp->m_flags & XFS_MOUNT_RDONLY)
-		return;
+		goto out;
 
 	/* Metadata inodes require explicit resource cleanup. */
 	if (xfs_is_metadata_inode(ip))
-		return;
+		goto out;
 
 	/* Try to clean out the cow blocks if there are any. */
 	if (xfs_inode_has_cow_data(ip))
@@ -1744,7 +1744,7 @@ xfs_inactive(
 		if (xfs_can_free_eofblocks(ip, true))
 			xfs_free_eofblocks(ip);
 
-		return;
+		goto out;
 	}
 
 	if (S_ISREG(VFS_I(ip)->i_mode) &&
@@ -1754,14 +1754,14 @@ xfs_inactive(
 
 	error = xfs_qm_dqattach(ip);
 	if (error)
-		return;
+		goto out;
 
 	if (S_ISLNK(VFS_I(ip)->i_mode))
 		error = xfs_inactive_symlink(ip);
 	else if (truncate)
 		error = xfs_inactive_truncate(ip);
 	if (error)
-		return;
+		goto out;
 
 	/*
 	 * If there are attributes associated with the file then blow them away
@@ -1771,7 +1771,7 @@ xfs_inactive(
 	if (XFS_IFORK_Q(ip)) {
 		error = xfs_attr_inactive(ip);
 		if (error)
-			return;
+			goto out;
 	}
 
 	ASSERT(!ip->i_afp);
@@ -1780,12 +1780,12 @@ xfs_inactive(
 	/*
 	 * Free the inode.
 	 */
-	error = xfs_inactive_ifree(ip);
-	if (error)
-		return;
+	xfs_inactive_ifree(ip);
 
+out:
 	/*
-	 * Release the dquots held by inode, if any.
+	 * We're done making metadata updates for this inode, so we can release
+	 * the attached dquots.
 	 */
 	xfs_qm_dqdetach(ip);
 }

