linux-toradex.git/fs/pnode.c, branch tegra-10.9.4

[patch 7/7] vfs: mountinfo: show dominating group id

2008-04-23T04:05:09+00:00

Show peer group ID of nearest dominating group that has intersection
with the mount's namespace.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Al Viro

[patch 4/7] vfs: mountinfo: add mount peer group ID

2008-04-23T04:04:51+00:00

Add a unique ID to each peer group using the IDR infrastructure.  The
identifiers are reused after the peer group dissolves.

The IDR structures are protected by holding namepspace_sem for write
while allocating or deallocating IDs.

IDs are allocated when a previously unshared vfsmount becomes the
first member of a peer group.  When a new member is added to an
existing group, the ID is copied from one of the old members.

IDs are freed when the last member of a peer group is unshared.

Setting the MNT_SHARED flag on members of a subtree is done as a
separate step, after all the IDs have been allocated.  This way an
allocation failure can be cleaned up easilty, without affecting the
propagation state.

Based on design sketch by Al Viro.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Al Viro

[PATCH] umount_tree() will unhash everything itself

2008-04-22T03:13:54+00:00

Signed-off-by: Al Viro

[PATCH] move a bunch of declarations to fs/internal.h

2008-04-22T03:11:01+00:00

Signed-off-by: Al Viro

[PATCH] count ghost references to vfsmounts

2008-03-28T00:47:46+00:00

make propagate_mount_busy() exclude references from the vfsmounts
that had been isolated by umount_tree() and are just waiting for
release_mounts() to dispose of their ->mnt_parent/->mnt_mountpoint.

Signed-off-by: Al Viro

MNT_UNBINDABLE fix

2008-02-06T18:41:02+00:00

Some time ago ( http://lkml.org/lkml/2007/6/19/128 ) I wrote about
MNT_UNBINDABLE that it felt like a bug that it is not reset by "mount
--make-private".

Today I happened to see mount(8) and Documentation/sharedsubtree.txt and
both document the version obtained by applying the little patch given in
the above (and again below).

So, the present kernel code is not according to specs and must be regarded
as buggy.

Specification in Documentation/sharedsubtree.txt:
See state diagram: unbindable should become private upon make-private.

Specification in mount(8):
    ...  It's
    also possible to  set  up  uni-directional  propagation  (with  --make-
    slave),  to  make  a  mount  point unavailable for --bind/--rbind (with
    --make-unbindable), and to undo any  of  these  (with  --make-private).

Repeat of old fix-shared-subtrees-make-private.patch
(due to Dirk Gerrits, René Gabriëls, Peter Kooijmans):

Acked-by: Ram Pai 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Introduce a handy list_first_entry macro

2007-05-08T18:15:11+00:00

There are many places in the kernel where the construction like

   foo = list_entry(head->next, struct foo_struct, list);

are used.
The code might look more descriptive and neat if using the macro

   list_first_entry(head, type, member) \
             list_entry((head)->next, type, member)

Here is the macro itself and the examples of its usage in the generic code.
 If it will turn out to be useful, I can prepare the set of patches to
inject in into arch-specific code, drivers, networking, etc.

Signed-off-by: Pavel Emelianov 
Signed-off-by: Kirill Korotaev 
Cc: Randy Dunlap 
Cc: Andi Kleen 
Cc: Zach Brown 
Cc: Davide Libenzi 
Cc: John McCutchan 
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Cc: john stultz 
Cc: Ram Pai 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] rename struct namespace to struct mnt_namespace

2006-12-08T16:28:51+00:00

Rename 'struct namespace' to 'struct mnt_namespace' to avoid confusion with
other namespaces being developped for the containers : pid, uts, ipc, etc.
'namespace' variables and attributes are also renamed to 'mnt_ns'

Signed-off-by: Kirill Korotaev 
Signed-off-by: Cedric Le Goater 
Cc: Eric W. Biederman 
Cc: Herbert Poetzl 
Cc: Sukadev Bhattiprolu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] core: use list_move()

2006-06-26T16:58:17+00:00

This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B).

Cc: Greg Kroah-Hartman 
Cc: Ram Pai 
Signed-off-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] s/;;/;/g

2006-03-24T15:33:24+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds