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vfs: now it can be done - make mnt_parent point to struct mount

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Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2011-11-24 22:19:58 -05:00
commit 0714a53380
5 changed files with 53 additions and 50 deletions
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7
fs/dcache.c
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@ -2452,6 +2452,7 @@ static int prepend_path(const struct path *path,
{
struct dentry *dentry = path->dentry;
struct vfsmount *vfsmnt = path->mnt;
struct mount *mnt = real_mount(vfsmnt);
bool slash = false;
int error = 0;
@ -2460,12 +2461,12 @@ static int prepend_path(const struct path *path,
struct dentry * parent;
if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
struct mount *mnt = real_mount(vfsmnt);
/* Global root? */
if (!mnt_has_parent(mnt))
goto global_root;
dentry = vfsmnt->mnt_mountpoint;
vfsmnt = mnt->mnt_parent;
dentry = mnt->mnt.mnt_mountpoint;
mnt = mnt->mnt_parent;
vfsmnt = &mnt->mnt;
continue;
}
parent = dentry->d_parent;