user/sven/linux.git/include/linux/mnt_namespace.h, branch v3.2.79

fs: seq_file - add event counter to simplify poll() support

2011-07-21T00:47:50Z

Moving the event counter into the dynamically allocated 'struc seq_file' allows poll() support without the need to allocate its own tracking structure. All current users are switched over to use the new counter. Requested-by: Andrew Morton akpm@linux-foundation.org Acked-by: NeilBrown Tested-by: Lucas De Marchi lucas.demarchi@profusion.mobi Signed-off-by: Kay Sievers Signed-off-by: Al Viro

take check for new events in namespace (guts of mounts_poll()) to namespace.c

2010-03-03T19:07:59Z

Signed-off-by: Al Viro

Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"

2009-12-17T20:51:05Z

This reverts commit e9496ff46a20a8592fdc7bdaaf41b45eb808d310. Quoth Al: "it's dependent on a lot of other stuff not currently in mainline and badly broken with current fs/namespace.c. Sorry, badly out-of-order cherry-pick from old queue. PS: there's a large pending series reworking the refcounting and lifetime rules for vfsmounts that will, among other things, allow to rip a subtree away _without_ dissolving connections in it, to be garbage-collected when all active references are gone. It's considerably saner wrt "is the subtree busy" logics, but it's nowhere near being ready for merge at the moment; this changeset is one of the things becoming possible with that sucker, but it certainly shouldn't have been picked during this cycle. My apologies..." Noticed-by: Eric Paris Requested-by: Al Viro Signed-off-by: Linus Torvalds

fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)

2009-12-16T17:16:44Z

Signed-off-by: Al Viro

headers: mnt_namespace.h redux

2009-07-08T16:31:56Z

Fix various silly problems wrt mnt_namespace.h: - exit_mnt_ns() isn't used, remove it - done that, sched.h and nsproxy.h inclusions aren't needed - mount.h inclusion was need for vfsmount_lock, but no longer - remove mnt_namespace.h inclusion from files which don't use anything from mnt_namespace.h Signed-off-by: Alexey Dobriyan Signed-off-by: Linus Torvalds

VFS: Add VFS helper functions for setting up private namespaces

2009-06-23T04:28:25Z

The purpose of this patch is to improve the remote mount path lookup support for distributed filesystems such as the NFSv4 client. When given a mount command of the form "mount server:/foo/bar /mnt", the NFSv4 client is required to look up the filehandle for "server:/", and then look up each component of the remote mount path "foo/bar" in order to find the directory that is actually going to be mounted on /mnt. Following that remote mount path may involve following symlinks, crossing server-side mount points and even following referrals to filesystem volumes on other servers. Since the standard VFS path lookup code already supports walking paths that contain all these features (using in-kernel automounts for following referrals) we would like to be able to reuse that rather than duplicate the full path traversal functionality in the NFSv4 client code. This patch therefore defines a VFS helper function create_mnt_ns(), that sets up a temporary filesystem namespace and attaches a root filesystem to it. It exports the create_mnt_ns() and put_mnt_ns() function for use by filesystem modules. Signed-off-by: Trond Myklebust Signed-off-by: Linus Torvalds

VFS: Uninline the function put_mnt_ns()

2009-06-23T04:28:25Z

In order to allow modules to use it without having to export vfsmount_lock. Signed-off-by: Trond Myklebust Signed-off-by: Linus Torvalds

Get rid of indirect include of fs_struct.h

2009-04-01T03:00:27Z

Don't pull it in sched.h; very few files actually need it and those can include directly. sched.h itself only needs forward declaration of struct fs_struct; Signed-off-by: Al Viro

[patch 6/7] vfs: mountinfo: add /proc//mountinfo

2008-04-23T04:05:03Z

[mszeredi@suse.cz] rewrite and split big patch into managable chunks /proc/mounts in its current form lacks important information: - propagation state - root of mount for bind mounts - the st_dev value used within the filesystem - identifier for each mount and it's parent It also suffers from the following problems: - not easily extendable - ambiguity of mountpoints within a chrooted environment - doesn't distinguish between filesystem dependent and independent options - doesn't distinguish between per mount and per super block options This patch introduces /proc//mountinfo which attempts to address all these deficiencies. Code shared between /proc//mounts and /proc//mountinfo is extracted into separate functions. Thanks to Al Viro for the help in getting the design right. Signed-off-by: Ram Pai Signed-off-by: Miklos Szeredi Signed-off-by: Al Viro

[patch 5/7] vfs: mountinfo: allow using process root

2008-04-23T04:04:57Z

Allow /proc//mountinfo to use the root of to calculate mountpoints. - move definition of 'struct proc_mounts' to - add the process's namespace and root to this structure - pass a pointer to 'struct proc_mounts' into seq_operations In addition the following cleanups are made: - use a common open function for /proc//{mounts,mountstat} - surround namespace.c part of these proc files with #ifdef CONFIG_PROC_FS - make the seq_operations structures const Signed-off-by: Miklos Szeredi Signed-off-by: Al Viro