From: Jan Kara <jack@suse.cz>
To: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
Jan Kara <jack@suse.cz>, Eric Paris <eparis@parisplace.org>,
John McCutchan <john@johnmccutchan.com>,
Robert Love <rlove@rlove.org>,
Michael Kerrisk <mtk.manpages@gmail.com>
Subject: Re: [PATCH 1/1] fallocate: create FAN_MODIFY and IN_MODIFY events
Date: Mon, 6 Oct 2014 16:12:27 +0200 [thread overview]
Message-ID: <20141006141227.GF7526@quack.suse.cz> (raw)
In-Reply-To: <1412324370-959-1-git-send-email-xypron.glpk@gmx.de>
On Fri 03-10-14 10:19:30, Heinrich Schuchardt wrote:
> The fanotify and the inotify API can used to monitor changes of the file
> system.
>
> System call fallocate modifies files. Hence it should trigger the corresponding
> fanotify (FAN_MODIFY) and inotify (IN_MODIFY) events.
>
> This patch adds the missing call to fsnotify_modify.
Well, there are different fallocate() commands and e.g. pure
FALLOC_FL_KEEP_SIZE call will not change any data in the file. I'm not sure
how much we care but I wanted to point that out...
Honza
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> ---
> fs/open.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/fs/open.c b/fs/open.c
> index d6fd3ac..03aa8e5 100644
> --- a/fs/open.c
> +++ b/fs/open.c
> @@ -295,6 +295,11 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
>
> sb_start_write(inode->i_sb);
> ret = file->f_op->fallocate(file, mode, offset, len);
> +
> + /* Create inotify and fanotify events. */
> + if (ret == 0)
> + fsnotify_modify(file);
> +
> sb_end_write(inode->i_sb);
> return ret;
> }
> --
> 2.1.0
>
--
Jan Kara <jack@suse.cz>
SUSE Labs, CR
next prev parent reply other threads:[~2014-10-06 14:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1412287587-5392-1-git-send-email-xypron.glpk@gmx.de>
2014-10-03 8:19 ` [PATCH 1/1] fallocate: create FAN_MODIFY and IN_MODIFY events Heinrich Schuchardt
2014-10-06 14:12 ` Jan Kara [this message]
2014-10-06 19:10 ` Heinrich Schuchardt
2014-10-07 18:05 ` Jan Kara
2014-10-07 18:24 ` Heinrich Schuchardt
2014-10-14 22:43 ` Andrew Morton
2014-10-17 17:08 ` [PATCH v2 " Heinrich Schuchardt
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