Commit bf9c1387 authored by Andy Adamson's avatar Andy Adamson Committed by Trond Myklebust
Browse files

NFSv4.1: put_layout_hdr can remove nfsi->layout 



Prevents an Oops triggered by CB_LAYOUTRECALL and LAYOUTGET race on a
pnfs_layout_hdr first pnfs_layout_segment.

Signed-off-by: default avatarAndy Adamson <andros@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 6f78befc

fs/nfs/pnfs.c

+1 −1
Original line number Diff line number Diff line
@@ -768,7 +768,7 @@ pnfs_update_layout(struct inode *ino, 
	put_layout_hdr(lo);

out:

	dprintk("%s end, state 0x%lx lseg %p\n", __func__,

		nfsi->layout->plh_flags, lseg);

		nfsi->layout ? nfsi->layout->plh_flags : -1, lseg);

	return lseg;

out_unlock:

	spin_unlock(&ino->i_lock);