linux-kernel - [PATCH 5.6 005/167] xfs: correctly acount for reclaimable slabs

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Message-Id: <20200428182225.994108964@linuxfoundation.org>
Date:   Tue, 28 Apr 2020 20:23:01 +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>,
        Brian Foster <bfoster@...hat.com>,
        Allison Collins <allison.henderson@...cle.com>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.6 005/167] xfs: correctly acount for reclaimable slabs

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

[ Upstream commit d59eadaea2b9945095d4d6d44367ebabd604395c ]

The XFS inode item slab actually reclaimed by inode shrinker
callbacks from the memory reclaim subsystem. These should be marked
as reclaimable so the mm subsystem has the full picture of how much
memory it can actually reclaim from the XFS slab caches.

Signed-off-by: Dave Chinner <dchinner@...hat.com>
Reviewed-by: Brian Foster <bfoster@...hat.com>
Reviewed-by: Allison Collins <allison.henderson@...cle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@...cle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/xfs/xfs_super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 2094386af8aca..68fea439d9743 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1861,7 +1861,8 @@ xfs_init_zones(void)
 
 	xfs_ili_zone = kmem_cache_create("xfs_ili",
 					 sizeof(struct xfs_inode_log_item), 0,
-					 SLAB_MEM_SPREAD, NULL);
+					 SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD,
+					 NULL);
 	if (!xfs_ili_zone)
 		goto out_destroy_inode_zone;
 
-- 
2.20.1