[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Wed, 3 Mar 2010 09:01:15 +0100
From: Jan Kara <jack@...e.cz>
To: Dmitry Monakhov <dmonakhov@...nvz.org>
Cc: linux-ext4@...r.kernel.org, jack@...e.cz
Subject: Re: [PATCH] ext3: add writepage sanity checks
On Tue 02-03-10 15:51:02, Dmitry Monakhov wrote:
> - There is theoretical possibility to perform writepage on
> RO superblock. Add explicit check for what case.
> - Page must being locked before writepage.
Thanks. Merged into my tree.
Honza
>
> Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
> ---
> fs/ext3/inode.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
> index 8ac4acf..14d40a4 100644
> --- a/fs/ext3/inode.c
> +++ b/fs/ext3/inode.c
> @@ -1528,6 +1528,7 @@ static int ext3_ordered_writepage(struct page *page,
> int err;
>
> J_ASSERT(PageLocked(page));
> + WARN_ON_ONCE(IS_RDONLY(inode));
>
> /*
> * We give up here if we're reentered, because it might be for a
> @@ -1600,6 +1601,9 @@ static int ext3_writeback_writepage(struct page *page,
> int ret = 0;
> int err;
>
> + J_ASSERT(PageLocked(page));
> + WARN_ON_ONCE(IS_RDONLY(inode));
> +
> if (ext3_journal_current_handle())
> goto out_fail;
>
> @@ -1642,6 +1646,9 @@ static int ext3_journalled_writepage(struct page *page,
> int ret = 0;
> int err;
>
> + J_ASSERT(PageLocked(page));
> + WARN_ON_ONCE(IS_RDONLY(inode));
> +
> if (ext3_journal_current_handle())
> goto no_write;
>
> --
> 1.6.6
>
--
Jan Kara <jack@...e.cz>
SUSE Labs, CR
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists