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| author | Steve French <smfrench@gmail.com> | 2014-10-06 01:01:03 -0500 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2014-10-16 15:20:20 -0500 |
| commit | b5b374eab11ef60d789e28bc36c18e2d08703212 (patch) | |
| tree | a1cec103a742227ec12ff77b8f38f40cd9af23f6 | |
| parent | 2baa2682531ff02928e2d3904800696d9e7193db (diff) | |
| download | lwn-b5b374eab11ef60d789e28bc36c18e2d08703212.tar.gz lwn-b5b374eab11ef60d789e28bc36c18e2d08703212.zip | |
Workaround Mac server problem
Mac server returns that they support CIFS Unix Extensions but
doesn't actually support QUERY_FILE_UNIX_BASIC so mount fails.
Workaround this problem by disabling use of Unix CIFS protocol
extensions if server returns an EOPNOTSUPP error on
QUERY_FILE_UNIX_BASIC during mount.
Signed-off-by: Steve French <smfrench@gmail.com>
| -rw-r--r-- | fs/cifs/inode.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index c23bdec805c5..197cb503d528 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -960,11 +960,18 @@ struct inode *cifs_root_iget(struct super_block *sb) struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); xid = get_xid(); - if (tcon->unix_ext) + if (tcon->unix_ext) { rc = cifs_get_inode_info_unix(&inode, "", sb, xid); - else - rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL); + /* some servers mistakenly claim POSIX support */ + if (rc != -EOPNOTSUPP) + goto iget_no_retry; + cifs_dbg(VFS, "server does not support POSIX extensions"); + tcon->unix_ext = false; + } + + rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL); +iget_no_retry: if (!inode) { inode = ERR_PTR(rc); goto out; |