41670a5900
Originally we tried to avoid multiple insertions into audit names array during retry loop by a cute hack - memorize the userland pointer and if there already is a match, just grab an extra reference to it. Cute as it had been, it had problems - two identical pointers had audit aux entries merged, two identical strings did not. Having different behaviour for syscalls that differ only by addresses of otherwise identical string arguments is obviously wrong - if nothing else, compiler can decide to merge identical string literals. Besides, this hack does nothing for non-audited processes - they get a fresh copy for retry. It's not time-critical, but having behaviour subtly differ that way is bogus. These days we have very few places that import filename more than once (9 functions total) and it's easy to massage them so we get rid of all re-imports. With that done, we don't need audit_reusename() anymore. There's no need to memorize userland pointer either. Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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