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415 Commits

Author SHA1 Message Date
Al Viro
0226f4923f vfs: take /proc/*/mounts and friends to fs/proc_namespace.c 
rationale: that stuff is far tighter bound to fs/namespace.c than to
the guts of procfs proper.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:13 -05:00
Al Viro
3a2393d71d vfs: opencode mntget() mnt_set_mountpoint() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:12 -05:00
Al Viro
909b0a88ef vfs: spread struct mount - remaining argument of next_mnt() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:12 -05:00
Al Viro
c63181e6b6 vfs: move fsnotify junk to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:12 -05:00
Al Viro
52ba1621de vfs: move mnt_devname 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:11 -05:00
Al Viro
1a4eeaf2a8 vfs: move mnt_list to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:11 -05:00
Al Viro
fc7be130c7 vfs: switch pnode.h macros to struct mount * 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:11 -05:00
Al Viro
863d684f94 vfs: move the rest of int fields to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:10 -05:00
Al Viro
15169fe784 vfs: mnt_id/mnt_group_id moved 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:10 -05:00
Al Viro
143c8c91ce vfs: mnt_ns moved to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:09 -05:00
Al Viro
900148dcac vfs: spread struct mount - mntput_no_expire 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:09 -05:00
Al Viro
95bc5f25c1 vfs: spread struct mount - do_add_mount and graft_tree 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:09 -05:00
Al Viro
6776db3d32 vfs: take mnt_share/mnt_slave/mnt_slave_list and mnt_expire to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:08 -05:00
Al Viro
32301920f4 vfs: and now we can make ->mnt_master point to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:08 -05:00
Al Viro
d10e8def07 vfs: take mnt_master to struct mount 
make IS_MNT_SLAVE take struct mount * at the same time

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:08 -05:00
Al Viro
14cf1fa8f5 vfs: spread struct mount - remaining argument of mnt_set_mountpoint() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:07 -05:00
Al Viro
a8d56d8e4f vfs: spread struct mount - propagate_mnt() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:07 -05:00
Al Viro
6fc7871fed vfs: spread struct mount - get_dominating_id / do_make_slave 
next pile of horrors, similar to mnt_parent one; this time it's
mnt_master.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:06 -05:00
Al Viro
6b41d536f7 vfs: take mnt_child/mnt_mounts to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:06 -05:00
Al Viro
68e8a9feab vfs: all counters taken to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:06 -05:00
Al Viro
83adc75322 vfs: spread struct mount - work with counters 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:05 -05:00
Al Viro
a73324da7a vfs: move mnt_mountpoint to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:05 -05:00
Al Viro
0714a53380 vfs: now it can be done - make mnt_parent point to struct mount 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:05 -05:00
Al Viro
3376f34fff vfs: mnt_parent moved to struct mount 
the second victim...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:04 -05:00
Al Viro
643822b41e vfs: spread struct mount - is_path_reachable 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:04 -05:00
Al Viro
676da58df7 vfs: spread struct mount - mnt_has_parent 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:04 -05:00
Al Viro
1ab5973862 vfs: spread struct mount - do_umount/propagate_mount_busy 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:03 -05:00
Al Viro
44d964d609 vfs: spread struct mount mnt_set_mountpoint child argument 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:03 -05:00
Al Viro
87129cc0e3 vfs: spread struct mount - clone_mnt/copy_tree argument 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:03 -05:00
Al Viro
692afc312b vfs: spread struct mount - shrink_submounts/select_submounts 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:02 -05:00
Al Viro
761d5c38eb vfs: spread struct mount - umount_tree argument 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:02 -05:00
Al Viro
1b8e5564b9 vfs: the first spoils - mnt_hash moved 
taken out of struct vfsmount into struct mount

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:02 -05:00
Al Viro
d5e50f74dd vfs: spread struct mount to remaining users of ->mnt_hash 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:01 -05:00
Al Viro
cb338d06e9 vfs: spread struct mount - clone_mnt/copy_tree result 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:01 -05:00
Al Viro
0f0afb1dcf vfs: spread struct mount - change_mnt_propagation/set_mnt_shared 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:01 -05:00
Al Viro
b105e270b4 vfs: spread struct mount - alloc_vfsmnt/free_vfsmnt/mnt_alloc_id/mnt_free_id 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:00 -05:00
Al Viro
cbbe362cd6 vfs: spread struct mount - tree_contains_unbindable 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:00 -05:00
Al Viro
0fb54e5056 vfs: spread struct mount - attach_recursive_mnt 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:57:00 -05:00
Al Viro
4b8b21f4fe vfs: spread struct mount - mount group id handling 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:56:59 -05:00
Al Viro
4b2619a571 vfs: spread struct mount - commit_tree 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:56:59 -05:00
Al Viro
419148da6e vfs: spread struct mount - attach_mnt/detach_mnt 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:56:59 -05:00
Al Viro
315fc83e56 vfs: spread struct mount - namespace.c internal iterators 
next_mnt() return value, first argument
skip_mnt_tree() return value and argument

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:56:58 -05:00
Al Viro
c71053659e vfs: spread struct mount - __lookup_mnt() result 
switch __lookup_mnt() to returning struct mount *; callers adjusted.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:56:58 -05:00
Al Viro
7d6fec45a5 vfs: start hiding vfsmount guts series 
Almost all fields of struct vfsmount are used only by core VFS (and
a fairly small part of it, at that).  The plan: embed struct vfsmount
into struct mount, making the latter visible only to core parts of VFS.
Then move fields from vfsmount to mount, eventually leaving only
mnt_root/mnt_sb/mnt_flags in struct vfsmount.  Filesystem code still
gets pointers to struct vfsmount and remains unchanged; all such
pointers go to struct vfsmount embedded into the instances of struct
mount allocated by fs/namespace.c.  When fs/namespace.c et.al. get
a pointer to vfsmount, they turn it into pointer to mount (using
container_of) and work with that.

This is the first part of series; struct mount is introduced,
allocation switched to using it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:56:57 -05:00
Al Viro
2a79f17e4a vfs: mnt_drop_write_file() 
new helper (wrapper around mnt_drop_write()) to be used in pair with
mnt_want_write_file().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:52:40 -05:00
Al Viro
79e801a906 vfs: make do_kern_mount() static 
the only user outside of fs/namespace.c has died

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:52:39 -05:00
Al Viro
aa0a4cf0ab vfs: dentry_reset_mounted() doesn't use vfsmount argument 
lose it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:52:37 -05:00
Al Viro
6c449c8dfe unexport put_mnt_ns(), make create_mnt_ns() static outright 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:52:37 -05:00
Al Viro
afac7cba7e vfs: more mnt_parent cleanups 
a) mount --move is checking that ->mnt_parent is non-NULL before
looking if that parent happens to be shared; ->mnt_parent is never
NULL and it's not even an misspelled !mnt_has_parent()

b) pivot_root open-codes is_path_reachable(), poorly.

c) so does path_is_under(), while we are at it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:52:36 -05:00
Al Viro
b2dba1af3c vfs: new internal helper: mnt_has_parent(mnt) 
vfsmounts have ->mnt_parent pointing either to a different vfsmount
or to itself; it's never NULL and termination condition in loops
traversing the tree towards root is mnt == mnt->mnt_parent.  At least
one place (see the next patch) is confused about what's going on;
let's add an explicit helper checking it right way and use it in
all places where we need it.  Not that there had been too many,
but...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2012-01-03 22:52:36 -05:00