From: Chengguang Xu <cgxu519@mykernel.net>
To: miklos@szeredi.hu, jack@suse.cz, amir73il@gmail.com
Cc: linux-fsdevel@vger.kernel.org, linux-unionfs@vger.kernel.org,
linux-kernel@vger.kernel.org,
Chengguang Xu <cgxu519@mykernel.net>
Subject: [RFC PATCH v5 08/10] fs: export wait_sb_inodes()
Date: Thu, 23 Sep 2021 21:08:12 +0800 [thread overview]
Message-ID: <20210923130814.140814-9-cgxu519@mykernel.net> (raw)
In-Reply-To: <20210923130814.140814-1-cgxu519@mykernel.net>
In order to wait syncing upper inodes we need to
call wait_sb_inodes() in overlayfs' ->sync_fs.
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
---
fs/fs-writeback.c | 3 ++-
include/linux/writeback.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 81ec192ce067..0438c911241e 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2505,7 +2505,7 @@ EXPORT_SYMBOL(__mark_inode_dirty);
* completed by the time we have gained the lock and waited for all IO that is
* in progress regardless of the order callers are granted the lock.
*/
-static void wait_sb_inodes(struct super_block *sb)
+void wait_sb_inodes(struct super_block *sb)
{
LIST_HEAD(sync_list);
@@ -2589,6 +2589,7 @@ static void wait_sb_inodes(struct super_block *sb)
rcu_read_unlock();
mutex_unlock(&sb->s_sync_lock);
}
+EXPORT_SYMBOL(wait_sb_inodes);
static void __writeback_inodes_sb_nr(struct super_block *sb, unsigned long nr,
enum wb_reason reason, bool skip_if_busy)
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d1f65adf6a26..d7aacd0434cf 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -198,6 +198,7 @@ void wakeup_flusher_threads_bdi(struct backing_dev_info *bdi,
enum wb_reason reason);
void inode_wait_for_writeback(struct inode *inode);
void inode_io_list_del(struct inode *inode);
+void wait_sb_inodes(struct super_block *sb);
/* writeback.h requires fs.h; it, too, is not included from here. */
static inline void wait_on_inode(struct inode *inode)
--
2.27.0
next prev parent reply other threads:[~2021-09-23 13:24 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-23 13:08 [RFC PATCH v5 00/10] implement containerized syncfs for overlayfs Chengguang Xu
2021-09-23 13:08 ` [RFC PATCH v5 01/10] ovl: setup overlayfs' private bdi Chengguang Xu
2021-09-23 13:08 ` [RFC PATCH v5 02/10] ovl: implement ->writepages operation Chengguang Xu
2021-09-23 13:08 ` [RFC PATCH v5 03/10] ovl: implement overlayfs' ->evict_inode operation Chengguang Xu
2021-10-06 15:33 ` Miklos Szeredi
2021-10-07 6:08 ` Chengguang Xu
2021-10-07 7:43 ` Miklos Szeredi
2021-09-23 13:08 ` [RFC PATCH v5 04/10] ovl: mark overlayfs' inode dirty on modification Chengguang Xu
2021-10-07 18:43 ` Miklos Szeredi
2021-09-23 13:08 ` [RFC PATCH v5 05/10] ovl: mark overlayfs' inode dirty on shared mmap Chengguang Xu
2021-09-23 13:08 ` [RFC PATCH v5 06/10] ovl: implement overlayfs' ->write_inode operation Chengguang Xu
2021-10-07 9:01 ` Jan Kara
2021-10-07 12:26 ` Chengguang Xu
2021-10-07 14:41 ` Jan Kara
2021-10-07 14:54 ` Chengguang Xu
2021-10-07 9:23 ` Miklos Szeredi
2021-10-07 12:28 ` Chengguang Xu
2021-10-07 12:45 ` Miklos Szeredi
2021-10-07 13:09 ` Chengguang Xu
2021-10-07 13:34 ` Miklos Szeredi
2021-10-07 14:46 ` Jan Kara
2021-10-07 14:53 ` Chengguang Xu
2021-10-07 18:51 ` Miklos Szeredi
2021-10-08 13:13 ` Jan Kara
2021-11-16 2:20 ` Chengguang Xu
2021-11-16 12:35 ` Miklos Szeredi
2021-11-17 6:11 ` Chengguang Xu
2021-11-18 6:32 ` Chengguang Xu
2021-11-18 11:23 ` Jan Kara
2021-11-18 12:02 ` Chengguang Xu
2021-11-18 16:43 ` Jan Kara
2021-11-19 6:12 ` Chengguang Xu
2021-11-30 11:22 ` Jan Kara
2021-11-30 16:09 ` Chengguang Xu
2021-11-30 19:04 ` Amir Goldstein
2021-12-01 2:37 ` Chengguang Xu
2021-12-01 6:31 ` Chengguang Xu
2021-12-01 7:19 ` Amir Goldstein
2021-12-01 13:46 ` Jan Kara
2021-12-01 14:59 ` Chengguang Xu
2021-12-01 16:24 ` Chengguang Xu
2021-12-01 22:47 ` Amir Goldstein
2021-12-01 23:23 ` ovl_flush() behavior Amir Goldstein
2021-12-02 2:11 ` Chengguang Xu
2021-12-02 15:20 ` Vivek Goyal
2021-12-02 15:59 ` Amir Goldstein
2021-12-02 22:00 ` Vivek Goyal
2021-12-02 15:14 ` Vivek Goyal
2021-12-05 14:06 ` [RFC PATCH v5 06/10] ovl: implement overlayfs' ->write_inode operation Chengguang Xu
2021-12-07 5:33 ` Amir Goldstein
2022-02-05 16:09 ` Chengguang Xu
2022-02-05 16:23 ` Amir Goldstein
2021-09-23 13:08 ` [RFC PATCH v5 07/10] ovl: cache dirty overlayfs' inode Chengguang Xu
2021-10-07 11:09 ` Miklos Szeredi
2021-10-07 12:04 ` Chengguang Xu
2021-10-07 12:27 ` Miklos Szeredi
2021-09-23 13:08 ` Chengguang Xu [this message]
2021-09-23 13:08 ` [RFC PATCH v5 09/10] fs: introduce new helper sync_fs_and_blockdev() Chengguang Xu
2021-10-19 7:15 ` Amir Goldstein
2021-11-15 11:39 ` Chengguang Xu
2021-09-23 13:08 ` [RFC PATCH v5 10/10] ovl: implement containerized syncfs for overlayfs Chengguang Xu
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