Commit 4f697a5e authored May 10, 2015 by Al Viro

namei: simpler treatment of symlinks with nothing other that / in the body



Instead of saving name and branching to OK:, where we'll immediately restore
it, and call walk_component() with WALK_PUT|WALK_GET and nd->last_type being
LAST_BIND, which is equivalent to put_link(nd), err = 0, we can just treat
that the same way we'd treat procfs-style "jump" symlinks - do put_link(nd)
and move on.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent 6920a440

fs/namei.c

+7 −5

Original line number	Diff line number	Diff line
		@@ -1865,13 +1865,15 @@ OK:
		;
		}
		nd->inode = nd->path.dentry->d_inode;
		if (unlikely(!*s)) {
		put_link(nd);
		} else {
		nd->stack[nd->depth - 1].name = name;
		if (!*s)
		goto OK;
		name = s;
		continue;
		}
		}
		}
		if (!d_can_lookup(nd->path.dentry)) {
		err = -ENOTDIR;
		break;

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