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| author | NeilBrown <neilb@suse.de> | 2024-08-29 09:06:28 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-04 13:30:16 +0200 |
| commit | 1b46a871e980e3daa16fd5e77539966492e8910a (patch) | |
| tree | 8460b606d50fdc2b7d9f2005a0b4853b3385767a /tools/perf/scripts/python/parallel-perf.py | |
| parent | dbec7640c80cbc59fe3a1d7f075ce364f93ea9d4 (diff) | |
nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
[ Upstream commit 40927f3d0972bf86357a32a5749be71a551241b6 ]
It is not safe to dereference fl->c.flc_owner without first confirming
fl->fl_lmops is the expected manager. nfsd4_deleg_getattr_conflict()
tests fl_lmops but largely ignores the result and assumes that flc_owner
is an nfs4_delegation anyway. This is wrong.
With this patch we restore the "!= &nfsd_lease_mng_ops" case to behave
as it did before the change mentioned below. This is the same as the
current code, but without any reference to a possible delegation.
Fixes: c5967721e106 ("NFSD: handle GETATTR conflict with write delegation")
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/parallel-perf.py')
0 files changed, 0 insertions, 0 deletions