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From: Jan Kara <jack@suse.cz>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: matthew.garrett@nebula.com, yuchao0@huawei.com, tytso@mit.edu,
	ard.biesheuvel@linaro.org, josef@toxicpanda.com, clm@fb.com,
	adilger.kernel@dilger.ca, viro@zeniv.linux.org.uk, jack@suse.com,
	dsterba@suse.com, jaegeuk@kernel.org, jk@ozlabs.org,
	reiserfs-devel@vger.kernel.org, linux-efi@vger.kernel.org,
	devel@lists.orangefs.org, linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-xfs@vger.kernel.org, linux-mm@kvack.org,
	linux-nilfs@vger.kernel.org, linux-mtd@lists.infradead.org,
	ocfs2-devel@oss.oracle.com, linux-fsdevel@vger.kernel.org,
	linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 2/7] vfs: flush and wait for io when setting the immutable flag via SETFLAGS
Date: Mon, 24 Jun 2019 17:33:58 +0200
Message-ID: <20190624153358.GH32376@quack2.suse.cz> (raw)
In-Reply-To: <156116142734.1664939.5074567130774423066.stgit@magnolia>

On Fri 21-06-19 16:57:07, Darrick J. Wong wrote:
> +/*
> + * Flush file data before changing attributes.  Caller must hold any locks
> + * required to prevent further writes to this file until we're done setting
> + * flags.
> + */
> +static inline int inode_flush_data(struct inode *inode)
> +{
> +	inode_dio_wait(inode);
> +	return filemap_write_and_wait(inode->i_mapping);
> +}

BTW, how about calling this function inode_drain_writes() instead? The
'flush_data' part is more a detail of implementation of write draining than
what we need to do to set immutable flag.

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-21 23:56 [PATCH v4 0/7] vfs: make immutable files actually immutable Darrick J. Wong
2019-06-21 23:56 ` [PATCH 1/7] mm/fs: don't allow writes to immutable files Darrick J. Wong
2019-06-24 11:13   ` Jan Kara
2019-06-21 23:57 ` [PATCH 2/7] vfs: flush and wait for io when setting the immutable flag via SETFLAGS Darrick J. Wong
2019-06-24 11:37   ` Jan Kara
2019-06-24 21:58     ` Darrick J. Wong
2019-06-25  3:04       ` [Ocfs2-devel] " Darrick J. Wong
2019-06-25  7:08         ` Jan Kara
2019-06-24 15:33   ` Jan Kara [this message]
2019-06-24 16:36     ` Darrick J. Wong
2019-06-21 23:57 ` [PATCH 3/7] vfs: flush and wait for io when setting the immutable flag via FSSETXATTR Darrick J. Wong
2019-06-21 23:57 ` [PATCH 4/7] vfs: don't allow most setxattr to immutable files Darrick J. Wong
2019-06-21 23:57 ` [PATCH 5/7] xfs: refactor setflags to use setattr code directly Darrick J. Wong
2019-06-21 23:57 ` [PATCH 6/7] xfs: clean up xfs_merge_ioc_xflags Darrick J. Wong
2019-06-21 23:57 ` [PATCH 7/7] vfs: don't allow writes to swap files Darrick J. Wong
2019-06-25 10:36 ` [PATCH v4 0/7] vfs: make immutable files actually immutable Christoph Hellwig
2019-06-25 18:03   ` Darrick J. Wong
2019-06-25 20:37     ` Andreas Dilger

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