Commit e8e66ed2 authored Aug 28, 2009 by Linus Torvalds

Do not call 'ima_path_check()' for each path component



Not only is that a supremely timing-critical path, but it's hopefully
some day going to be lockless for the common case, and ima can't do
that.

Plus the integrity code doesn't even care about non-regular files, so it
was always a total waste of time and effort.

Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 7c8460db

fs/namei.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -856,9 +856,6 @@ static int __link_path_walk(const char name, struct nameidata nd)
		if (err == -EAGAIN)
		err = inode_permission(nd->path.dentry->d_inode,
		MAY_EXEC);
		if (!err)
		err = ima_path_check(&nd->path, MAY_EXEC,
		IMA_COUNT_UPDATE);
		if (err)
		break;

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