linux-kernel - Re: 2.6.24-rc8-mm1: sparc64 warning at fs/file_table.c:49 _

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20080201153411.ec20cdc6.akpm@linux-foundation.org>
Date:	Fri, 1 Feb 2008 15:34:11 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Dave Hansen <haveblue@...ibm.com>
Cc:	m.kozlowski@...land.pl, linux-kernel@...r.kernel.org,
	davem@...emloft.net, sparclinux@...r.kernel.org, hch@....de
Subject: Re: 2.6.24-rc8-mm1: sparc64 warning at fs/file_table.c:49
 __fput+0x1a8/0x1e0()

On Tue, 22 Jan 2008 15:13:58 -0800
Dave Hansen <haveblue@...ibm.com> wrote:

> @@ -566,10 +567,26 @@ static void mark_files_ro(struct super_b
>  {
>  	struct file *f;
>  
> +retry:
>  	file_list_lock();
>  	list_for_each_entry(f, &sb->s_files, f_u.fu_list) {
> -		if (S_ISREG(f->f_path.dentry->d_inode->i_mode) && file_count(f))
> -			f->f_mode &= ~FMODE_WRITE;
> +		struct vfsmount mnt;
> +		if (!S_ISREG(f->f_path.dentry->d_inode->i_mode))
> +		       continue;
> +		if (!file_count(f))
> +			continue;
> +		if (!(f->f_mode & FMODE_WRITE))
> +			continue;
> +		f->f_mode &= ~FMODE_WRITE;
> +		f->f_mnt_write_state |= FILE_MNT_WRITE_RELEASED;
> +		mnt = f->f_path.mnt;
> +		file_list_unlock();
> +		/*
> +		 * This can sleep, so we can't hold
> +		 * the file_list_lock() spinlock.
> +		 */
> +		mnt_drop_write(mnt);
> +		goto retry;
>  	}
>  	file_list_unlock();
>  }
> _

this doesn't even compile.  How much confidence am I supposed
to have that once I've fixed it, it will actually work?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/