build_path_from_dentry(struct dentry *direntry)
{
struct dentry *temp;
- int namelen = 0;
+ int namelen;
+ int pplen;
char *full_path;
char dirsep;
when the server crashed */
dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
+ pplen = CIFS_SB(direntry->d_sb)->prepathlen;
cifs_bp_rename_retry:
+ namelen = pplen;
for (temp = direntry; !IS_ROOT(temp);) {
namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
if(full_path == NULL)
return full_path;
full_path[namelen] = 0; /* trailing null */
-
for (temp = direntry; !IS_ROOT(temp);) {
namelen -= 1 + temp->d_name.len;
if (namelen < 0) {
full_path[namelen] = dirsep;
strncpy(full_path + namelen + 1, temp->d_name.name,
temp->d_name.len);
- cFYI(0, (" name: %s ", full_path + namelen));
+ cFYI(0, ("name: %s", full_path + namelen));
}
temp = temp->d_parent;
if(temp == NULL) {
return NULL;
}
}
- if (namelen != 0) {
+ if (namelen != pplen) {
cERROR(1,
- ("We did not end path lookup where we expected namelen is %d",
+ ("did not end path lookup where expected namelen is %d",
namelen));
- /* presumably this is only possible if we were racing with a rename
+ /* presumably this is only possible if racing with a rename
of one of the parent directories (we can not lock the dentries
above us to prevent this, but retrying should be harmless) */
kfree(full_path);
- namelen = 0;
goto cifs_bp_rename_retry;
}
-
+ /* DIR_SEP already set for byte 0 / vs \ but not for
+ subsequent slashes in prepath which currently must
+ be entered the right way - not sure if there is an alternative
+ since the '\' is a valid posix character so we can not switch
+ those safely to '/' if any are found in the middle of the prepath */
+ /* BB test paths to Windows with '/' in the midst of prepath */
+ strncpy(full_path,CIFS_SB(direntry->d_sb)->prepath,pplen);
return full_path;
}
full_path[namelen+2] = 0;
BB remove above eight lines BB */
-/* Inode operations in similar order to how they appear in the Linux file fs.h */
+/* Inode operations in similar order to how they appear in Linux file fs.h */
int
cifs_create(struct inode *inode, struct dentry *direntry, int mode,
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&direntry->d_sb->s_vfs_rename_sem);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
FreeXid(xid);
return -ENOMEM;
}
-
- rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
+ if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
+ rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ else
+ rc = -EIO; /* no NT SMB support fall into legacy open below */
+
if(rc == -EIO) {
/* old server, retry the open legacy style */
rc = SMBLegacyOpen(xid, pTcon, full_path, disposition,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
if (rc) {
- cFYI(1, ("cifs_create returned 0x%x ", rc));
+ cFYI(1, ("cifs_create returned 0x%x", rc));
} else {
/* If Open reported that we actually created a file
then we now have to set the mode if possible */
CIFSSMBClose(xid, pTcon, fileHandle);
} else if(newinode) {
pCifsFile =
- kmalloc(sizeof (struct cifsFileInfo), GFP_KERNEL);
+ kzalloc(sizeof (struct cifsFileInfo), GFP_KERNEL);
if(pCifsFile == NULL)
goto cifs_create_out;
- memset((char *)pCifsFile, 0,
- sizeof (struct cifsFileInfo));
pCifsFile->netfid = fileHandle;
pCifsFile->pid = current->tgid;
pCifsFile->pInode = newinode;
pCifsFile->invalidHandle = FALSE;
pCifsFile->closePend = FALSE;
init_MUTEX(&pCifsFile->fh_sem);
+ init_MUTEX(&pCifsFile->lock_sem);
+ INIT_LIST_HEAD(&pCifsFile->llist);
+ atomic_set(&pCifsFile->wrtPending,0);
+
/* set the following in open now
pCifsFile->pfile = file; */
write_lock(&GlobalSMBSeslock);
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&direntry->d_sb->s_vfs_rename_sem);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
if(full_path == NULL)
rc = -ENOMEM;
else if (pTcon->ses->capabilities & CAP_UNIX) {
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
+ /* BB FIXME - add handling for backlevel servers
+ which need legacy open and check for all
+ calls to SMBOpen for fallback to
+ SMBLeagcyOpen */
if(!rc) {
/* BB Do not bother to decode buf since no
local inode yet to put timestamps in,
git://git.onelab.eu / linux-2.6.git / blobdiff