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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-02-27 19:01:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-24 09:01:18 +0300 |
| commit | 0fd0b83ac7bc47678663a79c67394d558cc598f4 (patch) | |
| tree | 0d27dfde5f3c4e894d9ce54c0aa93ad76cde653a /fs/nfs | |
| parent | 3eecbde9cbe23a1943feb935b82ba7f8fbb6a5a7 (diff) | |
| download | linux-0fd0b83ac7bc47678663a79c67394d558cc598f4.tar.xz | |
NFSv4/pnfs: Return valid stateids in nfs_layout_find_inode_by_stateid()
[ Upstream commit d911c57a19551c6bef116a3b55c6b089901aacb0 ]
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: 7b410d9ce460 ("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>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/callback_proc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index b8d55da2f04d..440ff8e7082b 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -127,6 +127,8 @@ static struct inode *nfs_layout_find_inode_by_stateid(struct nfs_client *clp, restart: 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; |