namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
if (temp == NULL) {
- cERROR(1, ("corrupt dentry"));
+ cERROR(1, "corrupt dentry");
return NULL;
}
}
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) {
- cERROR(1, ("corrupt dentry"));
+ cERROR(1, "corrupt dentry");
kfree(full_path);
return NULL;
}
}
if (namelen != pplen + dfsplen) {
- cERROR(1,
- ("did not end path lookup where expected namelen is %d",
- namelen));
+ cERROR(1, "did not end path lookup where expected namelen is %d",
+ namelen);
/* 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) */
return full_path;
}
-static void
-cifs_fill_fileinfo(struct inode *newinode, __u16 fileHandle,
- struct vfsmount *mnt, bool write_only)
+/*
+ * When called with struct file pointer set to NULL, there is no way we could
+ * update file->private_data, but getting it stuck on openFileList provides a
+ * way to access it from cifs_fill_filedata and thereby set file->private_data
+ * from cifs_open.
+ */
+struct cifsFileInfo *
+cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
+ struct file *file, struct vfsmount *mnt, unsigned int oflags)
{
int oplock = 0;
struct cifsFileInfo *pCifsFile;
struct cifs_sb_info *cifs_sb = CIFS_SB(mnt->mnt_sb);
pCifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
-
if (pCifsFile == NULL)
- return;
+ return pCifsFile;
if (oplockEnabled)
oplock = REQ_OPLOCK;
pCifsFile->pid = current->tgid;
pCifsFile->pInode = igrab(newinode);
pCifsFile->mnt = mnt;
+ pCifsFile->pfile = file;
pCifsFile->invalidHandle = false;
pCifsFile->closePend = false;
mutex_init(&pCifsFile->fh_mutex);
atomic_set(&pCifsFile->count, 1);
slow_work_init(&pCifsFile->oplock_break, &cifs_oplock_break_ops);
- /* set the following in open now
- pCifsFile->pfile = file; */
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist, &cifs_sb->tcon->openFileList);
pCifsInode = CIFS_I(newinode);
if (pCifsInode) {
/* if readable file instance put first in list*/
- if (write_only)
+ if (oflags & FMODE_READ)
+ list_add(&pCifsFile->flist, &pCifsInode->openFileList);
+ else
list_add_tail(&pCifsFile->flist,
&pCifsInode->openFileList);
- else
- list_add(&pCifsFile->flist, &pCifsInode->openFileList);
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = true;
pCifsInode->clientCanCacheRead = true;
- cFYI(1, ("Exclusive Oplock inode %p", newinode));
+ cFYI(1, "Exclusive Oplock inode %p", newinode);
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = true;
}
write_unlock(&GlobalSMBSeslock);
+
+ return pCifsFile;
}
int cifs_posix_open(char *full_path, struct inode **pinode,
- struct vfsmount *mnt, int mode, int oflags,
- __u32 *poplock, __u16 *pnetfid, int xid)
+ struct vfsmount *mnt, struct super_block *sb,
+ int mode, int oflags,
+ __u32 *poplock, __u16 *pnetfid, int xid)
{
int rc;
- bool write_only = false;
FILE_UNIX_BASIC_INFO *presp_data;
__u32 posix_flags = 0;
- struct cifs_sb_info *cifs_sb = CIFS_SB(mnt->mnt_sb);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifs_fattr fattr;
- cFYI(1, ("posix open %s", full_path));
+ cFYI(1, "posix open %s", full_path);
presp_data = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
if (presp_data == NULL)
posix_flags |= SMB_O_EXCL;
if (oflags & O_TRUNC)
posix_flags |= SMB_O_TRUNC;
- if (oflags & O_APPEND)
- posix_flags |= SMB_O_APPEND;
- if (oflags & O_SYNC)
+ /* be safe and imply O_SYNC for O_DSYNC */
+ if (oflags & O_DSYNC)
posix_flags |= SMB_O_SYNC;
if (oflags & O_DIRECTORY)
posix_flags |= SMB_O_DIRECTORY;
if (oflags & O_DIRECT)
posix_flags |= SMB_O_DIRECT;
- if (!(oflags & FMODE_READ))
- write_only = true;
-
mode &= ~current_umask();
rc = CIFSPOSIXCreate(xid, cifs_sb->tcon, posix_flags, mode,
pnetfid, presp_data, poplock, full_path,
/* get new inode and set it up */
if (*pinode == NULL) {
- *pinode = cifs_iget(mnt->mnt_sb, &fattr);
+ *pinode = cifs_iget(sb, &fattr);
if (!*pinode) {
rc = -ENOMEM;
goto posix_open_ret;
cifs_fattr_to_inode(*pinode, &fattr);
}
- cifs_fill_fileinfo(*pinode, *pnetfid, mnt, write_only);
+ /*
+ * cifs_fill_filedata() takes care of setting cifsFileInfo pointer to
+ * file->private_data.
+ */
+ if (mnt) {
+ struct cifsFileInfo *pfile_info;
+
+ pfile_info = cifs_new_fileinfo(*pinode, *pnetfid, NULL, mnt,
+ oflags);
+ if (pfile_info == NULL)
+ rc = -ENOMEM;
+ }
posix_open_ret:
kfree(presp_data);
FILE_ALL_INFO *buf = NULL;
struct inode *newinode = NULL;
int disposition = FILE_OVERWRITE_IF;
- bool write_only = false;
xid = GetXid();
if (nd && (nd->flags & LOOKUP_OPEN))
oflags = nd->intent.open.flags;
else
- oflags = FMODE_READ;
+ oflags = FMODE_READ | SMB_O_CREAT;
if (tcon->unix_ext && (tcon->ses->capabilities & CAP_UNIX) &&
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
- rc = cifs_posix_open(full_path, &newinode, nd->path.mnt,
- mode, oflags, &oplock, &fileHandle, xid);
+ rc = cifs_posix_open(full_path, &newinode,
+ nd ? nd->path.mnt : NULL,
+ inode->i_sb, mode, oflags, &oplock, &fileHandle, xid);
/* EIO could indicate that (posix open) operation is not
supported, despite what server claimed in capability
negotation. EREMOTE indicates DFS junction, which is not
desiredAccess = 0;
if (oflags & FMODE_READ)
desiredAccess |= GENERIC_READ; /* is this too little? */
- if (oflags & FMODE_WRITE) {
+ if (oflags & FMODE_WRITE)
desiredAccess |= GENERIC_WRITE;
- if (!(oflags & FMODE_READ))
- write_only = true;
- }
if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
disposition = FILE_CREATE;
else if ((oflags & O_CREAT) == O_CREAT)
disposition = FILE_OPEN_IF;
else
- cFYI(1, ("Create flag not set in create function"));
+ cFYI(1, "Create flag not set in create function");
}
/* BB add processing to set equivalent of mode - e.g. via CreateX with
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);
goto cifs_create_out;
}
if (rc == 0)
setup_cifs_dentry(tcon, direntry, newinode);
else
- cFYI(1, ("Create worked, get_inode_info failed rc = %d", rc));
+ cFYI(1, "Create worked, get_inode_info failed rc = %d", rc);
/* nfsd case - nfs srv does not set nd */
if ((nd == NULL) || (!(nd->flags & LOOKUP_OPEN))) {
/* mknod case - do not leave file open */
CIFSSMBClose(xid, tcon, fileHandle);
} else if (!(posix_create) && (newinode)) {
- cifs_fill_fileinfo(newinode, fileHandle, nd->path.mnt,
- write_only);
+ struct cifsFileInfo *pfile_info;
+ /*
+ * cifs_fill_filedata() takes care of setting cifsFileInfo
+ * pointer to file->private_data.
+ */
+ pfile_info = cifs_new_fileinfo(newinode, fileHandle, NULL,
+ nd->path.mnt, oflags);
+ if (pfile_info == NULL)
+ rc = -ENOMEM;
}
cifs_create_out:
kfree(buf);
u16 fileHandle;
FILE_ALL_INFO *buf;
- cFYI(1, ("sfu compat create special file"));
+ cFYI(1, "sfu compat create special file");
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
if (buf == NULL) {
xid = GetXid();
- cFYI(1, ("parent inode = 0x%p name is: %s and dentry = 0x%p",
- parent_dir_inode, direntry->d_name.name, direntry));
+ cFYI(1, "parent inode = 0x%p name is: %s and dentry = 0x%p",
+ parent_dir_inode, direntry->d_name.name, direntry);
/* check whether path exists */
int i;
for (i = 0; i < direntry->d_name.len; i++)
if (direntry->d_name.name[i] == '\\') {
- cFYI(1, ("Invalid file name"));
+ cFYI(1, "Invalid file name");
FreeXid(xid);
return ERR_PTR(-EINVAL);
}
* O_EXCL: optimize away the lookup, but don't hash the dentry. Let
* the VFS handle the create.
*/
- if (nd->flags & LOOKUP_EXCL) {
+ if (nd && (nd->flags & LOOKUP_EXCL)) {
d_instantiate(direntry, NULL);
- return 0;
+ return NULL;
}
/* can not grab the rename sem here since it would
}
if (direntry->d_inode != NULL) {
- cFYI(1, ("non-NULL inode in lookup"));
+ cFYI(1, "non-NULL inode in lookup");
} else {
- cFYI(1, ("NULL inode in lookup"));
+ cFYI(1, "NULL inode in lookup");
}
- cFYI(1, ("Full path: %s inode = 0x%p", full_path, direntry->d_inode));
+ cFYI(1, "Full path: %s inode = 0x%p", full_path, direntry->d_inode);
/* Posix open is only called (at lookup time) for file create now.
* For opens (rather than creates), because we do not know if it
* reduction in network traffic in the other paths.
*/
if (pTcon->unix_ext) {
- if (!(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY)) &&
+ if (nd && !(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY)) &&
(nd->flags & LOOKUP_OPEN) && !pTcon->broken_posix_open &&
(nd->intent.open.flags & O_CREAT)) {
rc = cifs_posix_open(full_path, &newInode, nd->path.mnt,
+ parent_dir_inode->i_sb,
nd->intent.open.create_mode,
nd->intent.open.flags, &oplock,
&fileHandle, xid);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
} else if (rc != -EACCES) {
- cERROR(1, ("Unexpected lookup error %d", rc));
+ cERROR(1, "Unexpected lookup error %d", rc);
/* We special case check for Access Denied - since that
is a common return code */
}
int isValid = 1;
if (direntry->d_inode) {
- if (cifs_revalidate(direntry))
+ if (cifs_revalidate_dentry(direntry))
return 0;
} else {
- cFYI(1, ("neg dentry 0x%p name = %s",
- direntry, direntry->d_name.name));
+ cFYI(1, "neg dentry 0x%p name = %s",
+ direntry, direntry->d_name.name);
if (time_after(jiffies, direntry->d_time + HZ) ||
!lookupCacheEnabled) {
d_drop(direntry);
{
int rc = 0;
- cFYI(1, ("In cifs d_delete, name = %s", direntry->d_name.name));
+ cFYI(1, "In cifs d_delete, name = %s", direntry->d_name.name);
return rc;
} */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff