diff options
| author | Pavel Shilovsky <piastryyy@gmail.com> | 2010-04-05 07:59:14 +0200 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-04-06 19:24:26 +0200 |
| commit | f05337c6ac48d19d354e0640a8eb8fc884f82bcc (patch) | |
| tree | 7be4407febc50dba022112281f1f6d04eb2a5a22 /fs/cifs/cifssmb.c | |
| parent | cifs: Fix a kernel BUG with remote OS/2 server (try #3) (diff) | |
| download | linux-f05337c6ac48d19d354e0640a8eb8fc884f82bcc.tar.xz linux-f05337c6ac48d19d354e0640a8eb8fc884f82bcc.zip | |
not overwriting file_lock structure after GET_LK
If we have preventing lock, cifs should overwrite file_lock structure
with info about preventing lock. If we haven't preventing lock, cifs
should leave it unchanged except for the lock type (change it to F_UNLCK).
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index f213b8ae43c1..184a399749a6 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1810,8 +1810,21 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, } parm_data = (struct cifs_posix_lock *) ((char *)&pSMBr->hdr.Protocol + data_offset); - if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) + if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK)) pLockData->fl_type = F_UNLCK; + else { + if (parm_data->lock_type == + __constant_cpu_to_le16(CIFS_RDLCK)) + pLockData->fl_type = F_RDLCK; + else if (parm_data->lock_type == + __constant_cpu_to_le16(CIFS_WRLCK)) + pLockData->fl_type = F_WRLCK; + + pLockData->fl_start = parm_data->start; + pLockData->fl_end = parm_data->start + + parm_data->length - 1; + pLockData->fl_pid = parm_data->pid; + } } plk_err_exit: |