Re: [PATCH 0/8] Security: Provide unioned file support
From: Al Viro
Date: Fri Jun 19 2015 - 03:20:31 EST
On Thu, Jun 18, 2015 at 02:32:15PM +0100, David Howells wrote:
> The attached patches provide security support for unioned files where the
> security involves an object-label-based LSM (such as SELinux) rather than a
> path-based LSM.
> The patches can be broken down into a number of sets:
> (1) A small patch to drop a lock earlier in overlayfs. The main VFS patch
> touches the same code, so I put this first.
> (2) The main VFS patch that makes an open file struct referring to a union
> file have ->f_path point to the union/overlay file whilst ->f_inode and
> ->f_mapping refer to the subordinate file that does the actual work.
#1 and #2 applied, will be in tomorrow vfs.git#for-next
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