diff options
| author | Andy Adamson <andros@netapp.com> | 2011-03-01 01:34:07 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-11 15:38:41 -0500 |
| commit | bf9c1387ca80deac792c9ecf1c64dfcc5d1cc768 (patch) | |
| tree | 4a06245d796db913a2a137d6498149e047a84283 /fs | |
| parent | 6f78befc417dd7122249706b49520da29ba58451 (diff) | |
| download | blackbird-op-linux-bf9c1387ca80deac792c9ecf1c64dfcc5d1cc768.tar.gz blackbird-op-linux-bf9c1387ca80deac792c9ecf1c64dfcc5d1cc768.zip | |
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: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/pnfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 0f5b66f90d17..7d031cd7d920 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -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); |
