From: Tahsin Erdogan <tahsin@google.com>
To: Tejun Heo <tj@kernel.org>, Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
Tahsin Erdogan <tahsin@google.com>
Subject: [PATCH] writeback: initialize inode members that track writeback history
Date: Tue, 16 Feb 2016 11:10:35 -0800 [thread overview]
Message-ID: <1455649835-25117-1-git-send-email-tahsin@google.com> (raw)
inode struct members that track cgroup writeback information
should be reinitialized when inode gets allocated from
kmem_cache. Otherwise, their values remain and get used by the
new inode.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
---
fs/inode.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/inode.c b/fs/inode.c
index 9f62db3..69b8b52 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -154,6 +154,12 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
inode->i_rdev = 0;
inode->dirtied_when = 0;
+#ifdef CONFIG_CGROUP_WRITEBACK
+ inode->i_wb_frn_winner = 0;
+ inode->i_wb_frn_avg_time = 0;
+ inode->i_wb_frn_history = 0;
+#endif
+
if (security_inode_alloc(inode))
goto out;
spin_lock_init(&inode->i_lock);
--
2.7.0.rc3.207.g0ac5344
next reply other threads:[~2016-02-16 19:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 19:10 Tahsin Erdogan [this message]
2016-02-16 21:13 ` [PATCH] writeback: initialize inode members that track writeback history Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2016-02-16 21:34 Tahsin Erdogan
2016-02-16 21:49 ` Tejun Heo
2016-02-17 15:30 ` Jens Axboe
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