On May 19 2007 03:18, Paul Dickson wrote:
>
>How about getting rid of the gotos:
>
> while (fs) {
> locked = union_trylock(fs->root);
> if (locked) {
> locked = union_trylock(fs->altroot);
> if (locked) {
> locked = union_trylock(fs->pwd);
> if (locked)
> break;
Suppose we break here...
> else {
> union_unlock(fs->altroot);
> union_unlock(fs->root);
> }
> else
> union_unlock(fs->root);
> }
> }
> read_unlock(&fs->lock);
> UM_DEBUG_LOCK("Failed to get all semaphores in fs_struct!\n");
> cpu_relax();
> read_lock(&fs->lock);
> }
> BUG_ON(!fs);
Then no lock is released. Boom.
Jan
--
-
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
