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From: Christoph Hellwig <hch@lst.de>
To: Carlos Maiolino <cem@kernel.org>
Cc: linux-xfs@vger.kernel.org, "Darrick J. Wong" <djwong@kernel.org>
Subject: [PATCH 08/18] xfs: xfs_qm_dqattach_one is never called with a non-NULL *IO_idqpp
Date: Mon, 10 Nov 2025 14:23:00 +0100	[thread overview]
Message-ID: <20251110132335.409466-9-hch@lst.de> (raw)
In-Reply-To: <20251110132335.409466-1-hch@lst.de>

The caller already checks that, so replace the handling of this case with
an assert that it does not happen.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
---
 fs/xfs/xfs_qm.c    | 13 +------------
 fs/xfs/xfs_trace.h |  1 -
 2 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 5e6aefb17f19..b571eff51694 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -297,19 +297,8 @@ xfs_qm_dqattach_one(
 	struct xfs_dquot	*dqp;
 	int			error;
 
+	ASSERT(!*IO_idqpp);
 	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
-	error = 0;
-
-	/*
-	 * See if we already have it in the inode itself. IO_idqpp is &i_udquot
-	 * or &i_gdquot. This made the code look weird, but made the logic a lot
-	 * simpler.
-	 */
-	dqp = *IO_idqpp;
-	if (dqp) {
-		trace_xfs_dqattach_found(dqp);
-		return 0;
-	}
 
 	/*
 	 * Find the dquot from somewhere. This bumps the reference count of
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index fccc032b3c6c..90582ff7c2cf 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -1399,7 +1399,6 @@ DEFINE_DQUOT_EVENT(xfs_dqadjust);
 DEFINE_DQUOT_EVENT(xfs_dqreclaim_want);
 DEFINE_DQUOT_EVENT(xfs_dqreclaim_busy);
 DEFINE_DQUOT_EVENT(xfs_dqreclaim_done);
-DEFINE_DQUOT_EVENT(xfs_dqattach_found);
 DEFINE_DQUOT_EVENT(xfs_dqattach_get);
 DEFINE_DQUOT_EVENT(xfs_dqalloc);
 DEFINE_DQUOT_EVENT(xfs_dqtobp_read);
-- 
2.47.3


  parent reply	other threads:[~2025-11-10 13:24 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-10 13:22 cleanup quota locking v2 Christoph Hellwig
2025-11-10 13:22 ` [PATCH 01/18] xfs: don't leak a locked dquot when xfs_dquot_attach_buf fails Christoph Hellwig
2025-11-10 18:03   ` Darrick J. Wong
2025-11-10 13:22 ` [PATCH 02/18] xfs: make qi_dquots a 64-bit value Christoph Hellwig
2025-11-10 18:04   ` Darrick J. Wong
2025-11-10 13:22 ` [PATCH 03/18] xfs: don't treat all radix_tree_insert errors as -EEXIST Christoph Hellwig
2025-11-10 18:04   ` Darrick J. Wong
2025-11-10 13:22 ` [PATCH 04/18] xfs: remove xfs_dqunlock and friends Christoph Hellwig
2025-11-10 13:22 ` [PATCH 05/18] xfs: use a lockref for the xfs_dquot reference count Christoph Hellwig
2025-11-10 13:22 ` [PATCH 06/18] xfs: remove xfs_qm_dqput and optimize dropping dquot references Christoph Hellwig
2025-11-10 18:12   ` Darrick J. Wong
2025-11-10 13:22 ` [PATCH 07/18] xfs: consolidate q_qlock locking in xfs_qm_dqget and xfs_qm_dqget_inode Christoph Hellwig
2025-11-10 13:23 ` Christoph Hellwig [this message]
2025-11-10 13:23 ` [PATCH 09/18] xfs: fold xfs_qm_dqattach_one into xfs_qm_dqget_inode Christoph Hellwig
2025-11-10 13:23 ` [PATCH 10/18] xfs: return the dquot unlocked from xfs_qm_dqget Christoph Hellwig
2025-11-10 13:23 ` [PATCH 11/18] xfs: remove q_qlock locking in xfs_qm_scall_setqlim Christoph Hellwig
2025-11-10 13:23 ` [PATCH 12/18] xfs: push q_qlock acquisition from xchk_dquot_iter to the callers Christoph Hellwig
2025-11-10 13:23 ` [PATCH 13/18] xfs: move q_qlock locking into xchk_quota_item Christoph Hellwig
2025-11-10 13:23 ` [PATCH 14/18] xfs: move q_qlock locking into xqcheck_compare_dquot Christoph Hellwig
2025-11-10 18:13   ` Darrick J. Wong
2025-11-10 13:23 ` [PATCH 15/18] xfs: move quota locking into xqcheck_commit_dquot Christoph Hellwig
2025-11-10 18:13   ` Darrick J. Wong
2025-11-10 13:23 ` [PATCH 16/18] xfs: move quota locking into xrep_quota_item Christoph Hellwig
2025-11-10 18:14   ` Darrick J. Wong
2025-11-10 13:23 ` [PATCH 17/18] xfs: move xfs_dquot_tree calls into xfs_qm_dqget_cache_{lookup,insert} Christoph Hellwig
2025-11-10 13:23 ` [PATCH 18/18] xfs: reduce ilock roundtrips in xfs_qm_vop_dqalloc Christoph Hellwig
2025-11-10 18:19   ` Darrick J. Wong
2025-11-11  8:54     ` Christoph Hellwig
2025-11-11 11:00 ` cleanup quota locking v2 Carlos Maiolino

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