From: Pavel Emelyanov <[EMAIL PROTECTED]> Date: Thu, 18 Oct 2007 15:59:14 +0400
> In the IPV6_FL_A_GET case the hash is checked for flowlabels > with the given label. If it is not found, the lock, protecting > the hash, is dropped to be re-get for writing. After this a > newly allocated entry is inserted, but no checks are performed > to catch a classical SMP race, when the conflicting label may > be inserted on another cpu. > > Use the (currently unused) return value from fl_intern() to > return the conflicting entry (if found) and re-check, whether > we can reuse it (IPV6_FL_F_EXCL) or return -EEXISTS. > > Also add the comment, about why not re-lookup the current > sock for conflicting flowlabel entry. > > Signed-off-by: Pavel Emelyanov <[EMAIL PROTECTED]> Applied. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
