diff options
| author | Pavel Shilovsky <pshilov@microsoft.com> | 2016-10-12 01:34:07 +0300 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2016-10-14 03:48:59 +0300 |
| commit | de74025052ef63852d80a444ea19f2bdd7bec63f (patch) | |
| tree | 472bb2dd2be1ffcb96d6a7edd25e1831ad32fcd9 /fs | |
| parent | f2cca6a7c99fdeadacd0bdc37d825c4bc2b03653 (diff) | |
| download | linux-de74025052ef63852d80a444ea19f2bdd7bec63f.tar.xz | |
CIFS: Reset read oplock to NONE if we have mandatory locks after reopen
We are already doing the same thing for an ordinary open case:
we can't keep read oplock on a file if we have mandatory byte-range
locks because pagereading can conflict with these locks on a server.
Fix it by setting oplock level to NONE.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/file.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 07c14f9217cb..7f5f6176c6f1 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -739,6 +739,15 @@ reopen_success: * to the server to get the new inode info. */ + /* + * If the server returned a read oplock and we have mandatory brlocks, + * set oplock level to None. + */ + if (server->ops->is_read_op(oplock) && cifs_has_mand_locks(cinode)) { + cifs_dbg(FYI, "Reset oplock val from read to None due to mand locks\n"); + oplock = 0; + } + server->ops->set_fid(cfile, &cfile->fid, oplock); if (oparms.reconnect) cifs_relock_file(cfile); |