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vfs: spread struct mount - shrink_submounts/select_submounts 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-11-24 21:15:14 -05:00
parent 761d5c38eb
commit 692afc312b
1 changed files with 14 additions and 14 deletions
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28
fs/namespace.c
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@ -1244,7 +1244,7 @@ void umount_tree(struct mount *mnt, int propagate, struct list_head *kill)
list_splice(&tmp_list, kill);
}
static void shrink_submounts(struct vfsmount *mnt, struct list_head *umounts);
static void shrink_submounts(struct mount *mnt, struct list_head *umounts);
static int do_umount(struct vfsmount *mnt, int flags)
{
@ -1322,7 +1322,7 @@ static int do_umount(struct vfsmount *mnt, int flags)
event++;
if (!(flags & MNT_DETACH))
shrink_submounts(mnt, &umount_list);
shrink_submounts(real_mount(mnt), &umount_list);
retval = -EBUSY;
if (flags & MNT_DETACH || !propagate_mount_busy(mnt, 2)) {
@ -2121,32 +2121,32 @@ EXPORT_SYMBOL_GPL(mark_mounts_for_expiry);
* search the list of submounts for a given mountpoint, and move any
* shrinkable submounts to the 'graveyard' list.
*/
static int select_submounts(struct vfsmount *parent, struct list_head *graveyard)
static int select_submounts(struct mount *parent, struct list_head *graveyard)
{
struct vfsmount *this_parent = parent;
struct mount *this_parent = parent;
struct list_head *next;
int found = 0;
repeat:
next = this_parent->mnt_mounts.next;
next = this_parent->mnt.mnt_mounts.next;
resume:
while (next != &this_parent->mnt_mounts) {
while (next != &this_parent->mnt.mnt_mounts) {
struct list_head *tmp = next;
struct vfsmount *mnt = list_entry(tmp, struct vfsmount, mnt_child);
struct mount *mnt = list_entry(tmp, struct mount, mnt.mnt_child);
next = tmp->next;
if (!(mnt->mnt_flags & MNT_SHRINKABLE))
if (!(mnt->mnt.mnt_flags & MNT_SHRINKABLE))
continue;
/*
* Descend a level if the d_mounts list is non-empty.
*/
if (!list_empty(&mnt->mnt_mounts)) {
if (!list_empty(&mnt->mnt.mnt_mounts)) {
this_parent = mnt;
goto repeat;
}
if (!propagate_mount_busy(mnt, 1)) {
list_move_tail(&mnt->mnt_expire, graveyard);
if (!propagate_mount_busy(&mnt->mnt, 1)) {
list_move_tail(&mnt->mnt.mnt_expire, graveyard);
found++;
}
}
@ -2154,8 +2154,8 @@ resume:
* All done at this level ... ascend and resume the search
*/
if (this_parent != parent) {
next = this_parent->mnt_child.next;
this_parent = this_parent->mnt_parent;
next = this_parent->mnt.mnt_child.next;
this_parent = real_mount(this_parent->mnt.mnt_parent);
goto resume;
}
return found;
@ -2167,7 +2167,7 @@ resume:
*
* vfsmount_lock must be held for write
*/
static void shrink_submounts(struct vfsmount *mnt, struct list_head *umounts)
static void shrink_submounts(struct mount *mnt, struct list_head *umounts)
{
LIST_HEAD(graveyard);
struct mount *m;