linux-kernel - [PATCH 5.10 025/545] xfs: fix I

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Message-Id: <20220819153830.321012867@linuxfoundation.org>
Date:   Fri, 19 Aug 2022 17:36:35 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dave Chinner <dchinner@...hat.com>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Amir Goldstein <amir73il@...il.com>
Subject: [PATCH 5.10 025/545] xfs: fix I_DONTCACHE

From: Dave Chinner <dchinner@...hat.com>

commit f38a032b165d812b0ba8378a5cd237c0888ff65f upstream.

Yup, the VFS hoist broke it, and nobody noticed. Bulkstat workloads
make it clear that it doesn't work as it should.

Fixes: dae2f8ed7992 ("fs: Lift XFS_IDONTCACHE to the VFS layer")
Signed-off-by: Dave Chinner <dchinner@...hat.com>
Reviewed-by: Darrick J. Wong <djwong@...nel.org>
Signed-off-by: Darrick J. Wong <djwong@...nel.org>
Signed-off-by: Amir Goldstein <amir73il@...il.com>
Acked-by: Darrick J. Wong <djwong@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/xfs/xfs_icache.c |    3 ++-
 fs/xfs/xfs_iops.c   |    2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -47,8 +47,9 @@ xfs_inode_alloc(
 		return NULL;
 	}
 
-	/* VFS doesn't initialise i_mode! */
+	/* VFS doesn't initialise i_mode or i_state! */
 	VFS_I(ip)->i_mode = 0;
+	VFS_I(ip)->i_state = 0;
 
 	XFS_STATS_INC(mp, vn_active);
 	ASSERT(atomic_read(&ip->i_pincount) == 0);
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1328,7 +1328,7 @@ xfs_setup_inode(
 	gfp_t			gfp_mask;
 
 	inode->i_ino = ip->i_ino;
-	inode->i_state = I_NEW;
+	inode->i_state |= I_NEW;
 
 	inode_sb_list_add(inode);
 	/* make the inode look hashed for the writeback code */