Pawel Jakub Dawidek wrote: > On Fri, Mar 13, 2009 at 02:08:03PM -0400, John Baldwin wrote: >> John Baldwin wrote: >>> Yes, I think that is the real bug. Looking at this further I think >>> zfs_get_xattrdir() will return the vnode locked if it has to create a >>> new node via zfs_make_attrdir() but only returns it held and unlocked if >>> it finds an existing one. So my new patch is to just fix >>> zfs_get_xattrdir() to unlock the vnode if it creates a new one like so: >>> >>> (Sorry, TBird is probably going to butcher all the whitespace): >>> >>> --- >>> //depot/user/jhb/lock/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c >>> +++ >>> /Users/jhb/work/p4/lock/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c >>> >>> _at__at_ -940,6 +940,7 _at__at_ >>> /* NB: we already did dmu_tx_wait() if necessary */ >>> goto top; >>> } >>> + VOP_UNLOCK(*xvpp, 0); >>> >>> return (error); >>> } >>> >>> A non-butchered version is at www.FreeBSD.org/~jhb/patches/zfs_ea.patch. >> So lulf_at_ reports success with this patch. Pawel, can you review it? > > Yes, it works for me too and looks good. The only thing we need to > change is to check for error beeing 0 before unlocking the vnode. > The zfs_make_xattrdir() function can still return with EIO, so I'd add > something like this: > > if (error == 0) > VOP_UNLOCK(*xvpp, 0); > > Thank you John for spending time on tracking this one down. Any estimate on when this can be committed? I'm waiting to re-enable the extended attribute archiving support in tar until this is fixed. TimReceived on Sun Mar 29 2009 - 14:29:16 UTC
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