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| author |   Benjamin Coddington <bcodding@redhat.com> | 2015-06-25 09:25:50 -0400 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@primarydata.com> | 2015-06-25 19:38:00 -0400 |
| commit | 18a600897212c1480eb635112baeab017babfc83 (patch) | |
| tree | 895c037a1c1c0cfd910085d0e112d810cd025322 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | nfs: always update creds in mirror, even when we have an already connected ds (diff) | |
| download | wireguard-linux-18a600897212c1480eb635112baeab017babfc83.tar.xz wireguard-linux-18a600897212c1480eb635112baeab017babfc83.zip | |
nfs: verify open flags before allowing open
Commit 9597c13b forbade opens with O_APPEND|O_DIRECT for NFSv4:
nfs: verify open flags before allowing an atomic open
Currently, you can open a NFSv4 file with O_APPEND|O_DIRECT, but cannot
fcntl(F_SETFL,...) with those flags. This flag combination is explicitly
forbidden on NFSv3 opens, and it seems like it should also be on NFSv4.
However, you can still open a file with O_DIRECT|O_APPEND if there exists a
cached dentry for the file because nfs4_file_open() is used instead of
nfs_atomic_open() and the check is bypassed. Add the check in
nfs4_file_open() as well.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions