Re: [PATCH] reiserfs: Expand i_mutex to enclose lookup_one_len

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

 



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Andrew Morton wrote:
> On Fri, 01 May 2009 12:11:12 -0400
> Jeff Mahoney <jeffm@xxxxxxxx> wrote:
> 
>>  2.6.30-rc3 introduced some sanity checks in the VFS code to avoid NFS
>>  bugs by ensuring that lookup_one_len is always called under i_mutex.
>>
>>  This patch expands the i_mutex locking to enclose lookup_one_len. This was
>>  always required, but not not enforced in the reiserfs code since it
>>  does locking around the xattr interactions with the xattr_sem.
> 
> cool, so this will fix all those backtraces people have been reporting
> coming out of the reiserfs xattr code lately?

Yes.

>>  This is obvious enough, but it survived an overnight 50 thread ACL test.
> 
> That sounds a bit pessimistic.  I think I'll s/but/and/ ;)

Yeah, that's more accurate. :)

- -Jeff

- --
Jeff Mahoney
SUSE Labs
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)
Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org

iEYEARECAAYFAkn7XU4ACgkQLPWxlyuTD7JOAgCfcVV+kowmYbaBKNCZG7BfNx3V
9dwAoKGB7Uu2RkwXtkpaaCi2ADtQszC1
=B4is
-----END PGP SIGNATURE-----
--
To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux File System Development]     [Linux BTRFS]     [Linux NFS]     [Linux Filesystems]     [Ext4 Filesystem]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Resources]

  Powered by Linux