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[CIFS] Allow disabling CIFS Unix Extensions as mount option

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Previously the only way to do this was to umount all mounts to that server,
turn off a proc setting (/proc/fs/cifs/LinuxExtensionsEnabled).

Fixes Samba bugzilla bug number: 4582 (and also 2008)

Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French
2007-07-18 23:21:09 +00:00
parent 63135e088a
commit c18c842b1f
9 changed files with 65 additions and 46 deletions
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13
fs/cifs/inode.c
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@@ -583,7 +583,8 @@ void cifs_read_inode(struct inode *inode)
cifs_sb = CIFS_SB(inode->i_sb);
xid = GetXid();
if (cifs_sb->tcon->ses->capabilities & CAP_UNIX)
if (cifs_sb->tcon->unix_ext)
cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
else
cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid);
@@ -981,7 +982,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
} else {
mkdir_get_info:
inc_nlink(inode);
if (pTcon->ses->capabilities & CAP_UNIX)
if (pTcon->unix_ext)
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
else
@@ -997,7 +998,7 @@ mkdir_get_info:
* failed to get it from the server or was set bogus */
if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
direntry->d_inode->i_nlink = 2;
if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) {
if (pTcon->unix_ext) {
mode &= ~current->fs->umask;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path,
@@ -1130,7 +1131,7 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
if (info_buf_source != NULL) {
info_buf_target = info_buf_source + 1;
if (pTcon->ses->capabilities & CAP_UNIX)
if (pTcon->unix_ext)
rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName,
info_buf_source,
cifs_sb_source->local_nls,
@@ -1258,7 +1259,7 @@ int cifs_revalidate(struct dentry *direntry)
local_mtime = direntry->d_inode->i_mtime;
local_size = direntry->d_inode->i_size;
if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) {
if (cifs_sb->tcon->unix_ext) {
rc = cifs_get_inode_info_unix(&direntry->d_inode, full_path,
direntry->d_sb, xid);
if (rc) {
@@ -1542,7 +1543,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
mode = attrs->ia_mode;
}
if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX)
if ((pTcon->unix_ext)
&& (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID)))
rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid,
0 /* dev_t */, cifs_sb->local_nls,