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* vfs: keep list of mounts for each superblockMiklos Szeredi2012-01-071-0/+1
| | | | | | | | | Keep track of vfsmounts belonging to a superblock. List is protected by vfsmount_lock. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch mnt_namespace ->root to struct mountAl Viro2012-01-041-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: take /proc/*/mounts and friends to fs/proc_namespace.cAl Viro2012-01-041-0/+24
| | | | | | | 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>
* vfs: move fsnotify junk to struct mountAl Viro2012-01-041-1/+4
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: move mnt_devnameAl Viro2012-01-041-1/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: move mnt_list to struct mountAl Viro2012-01-041-1/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: move the rest of int fields to struct mountAl Viro2012-01-041-0/+3
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: mnt_id/mnt_group_id movedAl Viro2012-01-041-0/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: mnt_ns moved to struct mountAl Viro2012-01-041-0/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: take mnt_share/mnt_slave/mnt_slave_list and mnt_expire to struct mountAl Viro2012-01-041-1/+5
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: and now we can make ->mnt_master point to struct mountAl Viro2012-01-041-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: take mnt_master to struct mountAl Viro2012-01-041-0/+2
| | | | | | make IS_MNT_SLAVE take struct mount * at the same time Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: take mnt_child/mnt_mounts to struct mountAl Viro2012-01-041-0/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: all counters taken to struct mountAl Viro2012-01-041-0/+12
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: move mnt_mountpoint to struct mountAl Viro2012-01-041-0/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: now it can be done - make mnt_parent point to struct mountAl Viro2012-01-041-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: mnt_parent moved to struct mountAl Viro2012-01-041-1/+2
| | | | | | the second victim... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: spread struct mount - mnt_has_parentAl Viro2012-01-041-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: the first spoils - mnt_hash movedAl Viro2012-01-041-0/+1
| | | | | | taken out of struct vfsmount into struct mount Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: spread struct mount - __lookup_mnt() resultAl Viro2012-01-041-0/+2
| | | | | | switch __lookup_mnt() to returning struct mount *; callers adjusted. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: start hiding vfsmount guts seriesAl Viro2012-01-041-0/+9
| | | | | | | | | | | | | | | | | | 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>
* vfs: new internal helper: mnt_has_parent(mnt)Al Viro2012-01-041-0/+6
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>
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