linux-kernel - Re: [PATCH 07/13] overlay: overlay filesystem documentation

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

Message-ID: <20120815195307.GB25062@fieldses.org>
Date:	Wed, 15 Aug 2012 15:53:07 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	viro@...IV.linux.org.uk, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, hch@...radead.org,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	apw@...onical.com, nbd@...nwrt.org, neilb@...e.de,
	hramrach@...trum.cz, jordipujolp@...il.com, ezk@....cs.sunysb.edu,
	ricwheeler@...il.com, dhowells@...hat.com, hpj@...la.net,
	sedat.dilek@...glemail.com, penberg@...nel.org,
	goran.cetusic@...il.com, romain@...bokech.com, mszeredi@...e.cz
Subject: Re: [PATCH 07/13] overlay: overlay filesystem documentation

Sorry, just trivial typos:

On Wed, Aug 15, 2012 at 05:48:14PM +0200, Miklos Szeredi wrote:
> +Directories
> +-----------
> +
> +Overlaying mainly involved directories.  If a given name appears in both

s/involved/involves/.

> +Non-standard behavior
> +---------------------
> +
> +The copy_up operation essentially creates a new, identical file and
> +moves it over to the old name.  The new file may be on a different
> +filesystem, so both st_dev and st_ino of the file may change.
> +
> +Any open files referring to this inode will access the old data and
> +metadata.  Similarly any file locks obtained before copy_up will not
> +apply to the copied up file.
> +
> +On a file is opened with O_RDONLY fchmod(2), fchown(2), futimesat(2)

s/is //

> +and fsetxattr(2) will fail with EROFS.
> +
> +If a file with multiple hard links is copied up, then this will
> +"break" the link.  Changes will not be propagated to other names
> +referring to the same inode.
> +
> +Symlinks in /proc/PID/ and /proc/PID/fd which point to a non-directory
> +object in overlayfs will not contain vaid absolute paths, only

s/vaid/valid/

--b.
--
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/