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| author | Pavel Shilovsky <piastryyy@gmail.com> | 2019-03-04 17:48:01 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-23 20:11:17 +0100 |
| commit | 3eb2412dd9da1c459bcd45ad8f567e489c060ad2 (patch) | |
| tree | e6d302fc3d16046b61363d75e71bdbfb7a08c38e /kernel/trace | |
| parent | c73a769b63fb86b38fda5a01765c9540b8c9c5a6 (diff) | |
| download | blackbird-obmc-linux-3eb2412dd9da1c459bcd45ad8f567e489c060ad2.tar.gz blackbird-obmc-linux-3eb2412dd9da1c459bcd45ad8f567e489c060ad2.zip | |
CIFS: Fix read after write for files with read caching
commit 6dfbd84684700cb58b34e8602c01c12f3d2595c8 upstream.
When we have a READ lease for a file and have just issued a write
operation to the server we need to purge the cache and set oplock/lease
level to NONE to avoid reading stale data. Currently we do that
only if a write operation succedeed thus not covering cases when
a request was sent to the server but a negative error code was
returned later for some other reasons (e.g. -EIOCBQUEUED or -EINTR).
Fix this by turning off caching regardless of the error code being
returned.
The patches fixes generic tests 075 and 112 from the xfs-tests.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions
