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From: Chengguang Xu <cgxu519@mykernel.net>
To: miklos@szeredi.hu, jack@suse.cz, amir73il@gmail.com
Cc: linux-unionfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Chengguang Xu <charliecgxu@tencent.com>
Subject: [RFC PATCH V6 4/7] ovl: set 'DONTCACHE' flag for overlayfs inode
Date: Mon, 22 Nov 2021 11:00:35 +0800	[thread overview]
Message-ID: <20211122030038.1938875-5-cgxu519@mykernel.net> (raw)
In-Reply-To: <20211122030038.1938875-1-cgxu519@mykernel.net>

From: Chengguang Xu <charliecgxu@tencent.com>

Set 'DONTCACHE' flag to overlayfs inode so that
upper inode to be always synced before eviction.

Signed-off-by: Chengguang Xu <charliecgxu@tencent.com>
---
 fs/overlayfs/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 027ffc0a2539..c4472299d5df 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -791,6 +791,7 @@ void ovl_inode_init(struct inode *inode, struct ovl_inode_params *oip,
 	ovl_copyattr(realinode, inode);
 	ovl_copyflags(realinode, inode);
 	ovl_map_ino(inode, ino, fsid);
+	d_mark_dontcache(inode);
 }
 
 static void ovl_fill_inode(struct inode *inode, umode_t mode, dev_t rdev)
-- 
2.27.0



  parent reply	other threads:[~2021-11-22  3:16 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-22  3:00 [RFC PATCH V6 0/7] implement containerized syncfs for overlayfs Chengguang Xu
2021-11-22  3:00 ` [RFC PATCH V6 1/7] ovl: setup overlayfs' private bdi Chengguang Xu
2021-11-26  8:51   ` Jan Kara
2021-11-22  3:00 ` [RFC PATCH V6 2/7] ovl: mark overlayfs inode dirty when it has upper Chengguang Xu
2021-11-26  9:10   ` Jan Kara
2021-11-26 13:06     ` Chengguang Xu
2021-11-26 14:32       ` Jan Kara
2021-11-22  3:00 ` [RFC PATCH V6 3/7] ovl: implement overlayfs' own ->write_inode operation Chengguang Xu
2021-11-26  9:14   ` Jan Kara
2021-11-26 13:09     ` Chengguang Xu
2021-11-22  3:00 ` Chengguang Xu [this message]
2021-11-26  9:20   ` [RFC PATCH V6 4/7] ovl: set 'DONTCACHE' flag for overlayfs inode Jan Kara
2021-11-22  3:00 ` [RFC PATCH V6 5/7] fs: export wait_sb_inodes() Chengguang Xu
2021-11-26  9:20   ` Jan Kara
2021-11-22  3:00 ` [RFC PATCH V6 6/7] ovl: introduce ovl_sync_upper_blockdev() Chengguang Xu
2021-11-26  9:21   ` Jan Kara
2021-11-22  3:00 ` [RFC PATCH V6 7/7] ovl: implement containerized syncfs for overlayfs Chengguang Xu
2021-11-22  7:40   ` Amir Goldstein
2021-11-26  5:03     ` Chengguang Xu
2021-11-26  9:25   ` Jan Kara
2021-11-27  9:26 ` 回复:[RFC PATCH V6 0/7] " Chengguang Xu

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