RCU caching regression in kernel v4.1+

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Al,

Please could you take a look at the bugzilla entry in
https://bugzilla.kernel.org/show_bug.cgi?id=104911 ?

It describes a NFS caching regression that appears to be caused by
commit 766c4cbfacd8634d7580bac6a1b8456e63de3e84 ("namei:
d_is_negative() should be checked before ->d_seq validation").

Shouldn't that test for 'if (negative) return -ENOENT;' happen after
the call to d_revalidate() in lookup_fast()? If not, we can end up
caching negative dentries forever, AFAICS...

Cheers
  Trond
--
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



[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux