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| author | Sachin Prabhu <sprabhu@redhat.com> | 2013-03-05 19:25:56 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2013-03-06 18:30:04 -0600 |
| commit | c483a9841df1de327e01af7deb6ba349210e5f82 (patch) | |
| tree | d48fe8bb27a79e4777d0df626884129a0a2623ee | |
| parent | 72d282dc5109e5dc0d963be020604e0cc82f7ed7 (diff) | |
| download | op-kernel-dev-c483a9841df1de327e01af7deb6ba349210e5f82.zip op-kernel-dev-c483a9841df1de327e01af7deb6ba349210e5f82.tar.gz | |
cifs: Check server capability before attempting silly rename
cifs_rename_pending_delete() attempts to silly rename file using
CIFSSMBRenameOpenFile(). This uses the SET_FILE_INFORMATION TRANS2
command with information level set to the passthru info-level
SMB_SET_FILE_RENAME_INFORMATION.
We need to check to make sure that the server support passthru
info-levels before attempting the silly rename or else we will fail to
rename the file.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
| -rw-r--r-- | fs/cifs/inode.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index e7ae45c..0079696 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -995,6 +995,15 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, return PTR_ERR(tlink); tcon = tlink_tcon(tlink); + /* + * We cannot rename the file if the server doesn't support + * CAP_INFOLEVEL_PASSTHRU + */ + if (!(tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)) { + rc = -EBUSY; + goto out; + } + rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN, DELETE|FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR, &netfid, &oplock, NULL, cifs_sb->local_nls, |
