redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

NFSv4/pnfs: Return valid stateids in nfs_layout_find_inode_by_stateid() 

[ Upstream commit d911c57a19 ]

Make sure to test the stateid for validity so that we catch instances
where the server may have been reusing stateids in
nfs_layout_find_inode_by_stateid().

Fixes: 7b410d9ce4 ("pNFS: Delay getting the layout header in CB_LAYOUTRECALL handlers")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Trond Myklebust 2020-02-27 11:01:12 -05:00 committed by Greg Kroah-Hartman
parent 07cd4e8f74
commit 264e3f1597
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/nfs/callback_proc.c
View File

@ -130,6 +130,8 @@ static struct inode *nfs_layout_find_inode_by_stateid(struct nfs_client *clp,
list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
list_for_each_entry(lo, &server->layouts, plh_layouts) {
if (!pnfs_layout_is_valid(lo))
continue;
if (stateid != NULL &&
!nfs4_stateid_match_other(stateid, &lo->plh_stateid))
continue;