On Fri, 07 Dec 2007 04:51:37 +0000 David Woodhouse <[EMAIL PROTECTED]> wrote:
> On Mon, 2007-11-26 at 15:17 -0700, Eric W. Biederman wrote: > > Well I clearly goofed when I added the initial network namespace support > > for /proc/net. Currently things work but there are odd details visible > > to user space, even when we have a single network namespace. > > > > Since we do not cache proc_dir_entry dentries at the moment we can > > just modify ->lookup to return a different directory inode depending > > on the network namespace of the process looking at /proc/net, replacing > > the current technique of using a magic and fragile follow_link method. > > > > To accomplish that this patch: > > - introduces a shadow_proc method to allow different dentries to > > be returned from proc_lookup. > > - Removes the old /proc/net follow_link magic > > - Fixes a weakness in our not caching of proc generic dentries. > > > > As shadow_proc uses a task struct to decided which dentry to return we > > can go back later and fix the proc generic caching without modifying any > > code that > > uses the shadow_proc method. > > > > Signed-off-by: Eric W. Biederman <[EMAIL PROTECTED]> > > --- > > fs/proc/generic.c | 12 ++++++- > > fs/proc/proc_net.c | 86 > > +++-------------------------------------------- > > include/linux/proc_fs.h | 3 ++ > > 3 files changed, 19 insertions(+), 82 deletions(-) > > (commit 2b1e300a9dfc3196ccddf6f1d74b91b7af55e416) > > This seems to have broken the use of /proc/bus/usb as a mountpoint. It > always appears empty now, whatever's supposed to be mounted there. > Yes. Denis and Eric are tossing around competing patches but afaik nobody is happy with any of them. Guys, could we get this sorted soonish please? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
