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vfs: remove lives_below_in_same_fs()

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Remove lives_below_in_same_fs() since is_subdir() from fs/dcache.c is
providing the same functionality.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Acked-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Blunck 2008-04-29 00:59:40 -07:00 • committed by Linus Torvalds
parent c5c8be3ce5
commit 7ec02ef159
1 changed files with 1 additions and 12 deletions
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13
fs/namespace.c
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@ -1176,17 +1176,6 @@ static int mount_is_safe(struct nameidata *nd)
#endif #endif
} }
static int lives_below_in_same_fs(struct dentry *d, struct dentry *dentry)
{
while (1) {
if (d == dentry)
return 1;
if (d == NULL || d == d->d_parent)
return 0;
d = d->d_parent;
}
}
struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry, struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
int flag) int flag)
{ {
@ -1203,7 +1192,7 @@ struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
p = mnt; p = mnt;
list_for_each_entry(r, &mnt->mnt_mounts, mnt_child) { list_for_each_entry(r, &mnt->mnt_mounts, mnt_child) {
if (!lives_below_in_same_fs(r->mnt_mountpoint, dentry)) if (!is_subdir(r->mnt_mountpoint, dentry))
continue; continue;
for (s = r; s; s = next_mnt(s, r)) { for (s = r; s; s = next_mnt(s, r)) {