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authorTrond Myklebust <trond.myklebust@primarydata.com>2014-03-04 13:48:16 -0500
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-03-05 11:55:25 -0500
commit0418dae1056d6091e9527b7158a3763f7aa92353 (patch)
tree5837e26fff816e8a444e53117a401367b1559187
parent869a9d375dca601dde1dee1344f3d1d665505f19 (diff)
downloadlinux-0418dae1056d6091e9527b7158a3763f7aa92353.tar.gz
NFSv4: Fail the truncate() if the lock/open stateid is invalid
If the open stateid could not be recovered, or the file locks were lost, then we should fail the truncate() operation altogether. Reported-by: Andy Adamson <andros@netapp.com> Link: http://lkml.kernel.org/r/1393954269-3974-1-git-send-email-andros@netapp.com Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
-rw-r--r--fs/nfs/nfs4proc.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4ae8141452c9..450bfedbe2f4 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2398,13 +2398,16 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
if (nfs4_copy_delegation_stateid(&arg.stateid, inode, fmode)) {
/* Use that stateid */
- } else if (truncate && state != NULL && nfs4_valid_open_stateid(state)) {
+ } else if (truncate && state != NULL) {
struct nfs_lockowner lockowner = {
.l_owner = current->files,
.l_pid = current->tgid,
};
- nfs4_select_rw_stateid(&arg.stateid, state, FMODE_WRITE,
- &lockowner);
+ if (!nfs4_valid_open_stateid(state))
+ return -EBADF;
+ if (nfs4_select_rw_stateid(&arg.stateid, state, FMODE_WRITE,
+ &lockowner) == -EIO)
+ return -EBADF;
} else
nfs4_stateid_copy(&arg.stateid, &zero_stateid);