@@ -221,7 +221,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
- struct cifsTconInfo *tcon = cifs_sb_tcon(cifs_sb);
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
int rc = -EOPNOTSUPP;
int xid;
@@ -365,7 +365,7 @@ static int
cifs_show_options(struct seq_file *s, struct vfsmount *m)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(m->mnt_sb);
- struct cifsTconInfo *tcon = cifs_sb_tcon(cifs_sb);
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
seq_printf(s, ",unc=%s", tcon->treeName);
if (tcon->ses->userName)
@@ -436,7 +436,7 @@ static void cifs_umount_begin(struct super_block *sb)
if (cifs_sb == NULL)
return;
- tcon = cifs_sb_tcon(cifs_sb);
+ tcon = cifs_sb_master_tcon(cifs_sb);
read_lock(&cifs_tcp_ses_lock);
if ((tcon->tc_count > 1) || (tcon->tidStatus == CifsExiting)) {
@@ -417,6 +417,13 @@ cifs_sb_tcon(struct cifs_sb_info *cifs_sb)
return cifs_sb->ptcon;
}
+/* This function is always expected to succeed */
+static inline struct cifsTconInfo *
+cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb)
+{
+ return cifs_sb->ptcon;
+}
+
static inline char CIFS_DIR_SEP(const struct cifs_sb_info *cifs_sb)
{
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
@@ -2953,9 +2953,9 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
{
int rc = 0;
char *tmp;
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
- if (cifs_sb_tcon(cifs_sb))
- cifs_put_tcon(cifs_sb_tcon(cifs_sb));
+ cifs_put_tcon(tcon);
cifs_sb->ptcon = NULL;
tmp = cifs_sb->prepath;
@@ -54,18 +54,18 @@ build_path_from_dentry(struct dentry *direntry)
int dfsplen;
char *full_path;
char dirsep;
- struct cifs_sb_info *cifs_sb;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
if (direntry == NULL)
return NULL; /* not much we can do if dentry is freed and
we need to reopen the file after it was closed implicitly
when the server crashed */
- cifs_sb = CIFS_SB(direntry->d_sb);
dirsep = CIFS_DIR_SEP(cifs_sb);
pplen = cifs_sb->prepathlen;
- if (cifs_sb_tcon(cifs_sb) && (cifs_sb_tcon(cifs_sb)->Flags & SMB_SHARE_IS_IN_DFS))
- dfsplen = strnlen(cifs_sb_tcon(cifs_sb)->treeName, MAX_TREE_SIZE + 1);
+ if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
+ dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
else
dfsplen = 0;
cifs_bp_rename_retry:
@@ -117,7 +117,7 @@ cifs_bp_rename_retry:
/* BB test paths to Windows with '/' in the midst of prepath */
if (dfsplen) {
- strncpy(full_path, cifs_sb_tcon(cifs_sb)->treeName, dfsplen);
+ strncpy(full_path, tcon->treeName, dfsplen);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
int i;
for (i = 0; i < dfsplen; i++) {
@@ -62,15 +62,15 @@ static void cifs_fscache_enable_inode_cookie(struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
if (cifsi->fscache)
return;
- cifsi->fscache = fscache_acquire_cookie(cifs_sb_tcon(cifs_sb)->fscache,
- &cifs_fscache_inode_object_def,
- cifsi);
- cFYI(1, "CIFS: got FH cookie (0x%p/0x%p)",
- cifs_sb_tcon(cifs_sb)->fscache, cifsi->fscache);
+ cifsi->fscache = fscache_acquire_cookie(tcon->fscache,
+ &cifs_fscache_inode_object_def, cifsi);
+ cFYI(1, "CIFS: got FH cookie (0x%p/0x%p)", tcon->fscache,
+ cifsi->fscache);
}
void cifs_fscache_release_inode_cookie(struct inode *inode)
@@ -118,7 +118,7 @@ void cifs_fscache_reset_inode_cookie(struct inode *inode)
fscache_relinquish_cookie(cifsi->fscache, 1);
cifsi->fscache = fscache_acquire_cookie(
- cifs_sb_tcon(cifs_sb)->fscache,
+ cifs_sb_master_tcon(cifs_sb)->fscache,
&cifs_fscache_inode_object_def,
cifsi);
cFYI(1, "CIFS: new cookie 0x%p oldcookie 0x%p",
@@ -52,7 +52,7 @@ static void cifs_set_ops(struct inode *inode, const bool is_dfs_referral)
/* check if server can support readpages */
- if (cifs_sb_tcon(cifs_sb)->ses->server->maxBuf <
+ if (cifs_sb_master_tcon(cifs_sb)->ses->server->maxBuf <
PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
else
@@ -469,6 +469,8 @@ static void
cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
struct cifs_sb_info *cifs_sb, bool adjust_tz)
{
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
+
memset(fattr, 0, sizeof(*fattr));
fattr->cf_cifsattrs = le32_to_cpu(info->Attributes);
if (info->DeletePending)
@@ -483,8 +485,8 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
fattr->cf_mtime = cifs_NTtimeToUnix(info->LastWriteTime);
if (adjust_tz) {
- fattr->cf_ctime.tv_sec += cifs_sb_tcon(cifs_sb)->ses->server->timeAdj;
- fattr->cf_mtime.tv_sec += cifs_sb_tcon(cifs_sb)->ses->server->timeAdj;
+ fattr->cf_ctime.tv_sec += tcon->ses->server->timeAdj;
+ fattr->cf_mtime.tv_sec += tcon->ses->server->timeAdj;
}
fattr->cf_eof = le64_to_cpu(info->EndOfFile);
@@ -685,6 +687,7 @@ char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb)
int pplen = cifs_sb->prepathlen;
int dfsplen;
char *full_path = NULL;
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
/* if no prefix path, simply set path to the root of share to "" */
if (pplen == 0) {
@@ -694,8 +697,8 @@ char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb)
return full_path;
}
- if (cifs_sb_tcon(cifs_sb) && (cifs_sb_tcon(cifs_sb)->Flags & SMB_SHARE_IS_IN_DFS))
- dfsplen = strnlen(cifs_sb_tcon(cifs_sb)->treeName, MAX_TREE_SIZE + 1);
+ if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
+ dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
else
dfsplen = 0;
@@ -704,7 +707,7 @@ char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb)
return full_path;
if (dfsplen) {
- strncpy(full_path, cifs_sb_tcon(cifs_sb)->treeName, dfsplen);
+ strncpy(full_path, tcon->treeName, dfsplen);
/* switch slash direction in prepath depending on whether
* windows or posix style path names
*/
@@ -823,18 +826,18 @@ retry_iget5_locked:
struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
{
int xid;
- struct cifs_sb_info *cifs_sb;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct inode *inode = NULL;
long rc;
char *full_path;
+ struct cifsTconInfo *tcon = cifs_sb_master_tcon(cifs_sb);
- cifs_sb = CIFS_SB(sb);
full_path = cifs_build_path_to_root(cifs_sb);
if (full_path == NULL)
return ERR_PTR(-ENOMEM);
xid = GetXid();
- if (cifs_sb_tcon(cifs_sb)->unix_ext)
+ if (tcon->unix_ext)
rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
else
rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
@@ -845,10 +848,10 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
#ifdef CONFIG_CIFS_FSCACHE
/* populate tcon->resource_id */
- cifs_sb_tcon(cifs_sb)->resource_id = CIFS_I(inode)->uniqueid;
+ tcon->resource_id = CIFS_I(inode)->uniqueid;
#endif
- if (rc && cifs_sb_tcon(cifs_sb)->ipc) {
+ if (rc && tcon->ipc) {
cFYI(1, "ipc connection - fake read inode");
inode->i_mode |= S_IFDIR;
inode->i_nlink = 2;
@@ -1653,7 +1656,7 @@ int cifs_revalidate_dentry(struct dentry *dentry)
"jiffies %ld", full_path, inode, inode->i_count.counter,
dentry, dentry->d_time, jiffies);
- if (cifs_sb_tcon(CIFS_SB(sb))->unix_ext)
+ if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext)
rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
else
rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
@@ -2079,7 +2082,7 @@ cifs_setattr(struct dentry *direntry, struct iattr *attrs)
{
struct inode *inode = direntry->d_inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
- struct cifsTconInfo *pTcon = cifs_sb_tcon(cifs_sb);
+ struct cifsTconInfo *pTcon = cifs_sb_master_tcon(cifs_sb);
if (pTcon->unix_ext)
return cifs_setattr_unix(direntry, attrs);
@@ -729,6 +729,6 @@ cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb)
"properly. Hardlinks will not be recognized on this "
"mount. Consider mounting with the \"noserverino\" "
"option to silence this message.",
- cifs_sb_tcon(cifs_sb)->treeName);
+ cifs_sb_master_tcon(cifs_sb)->treeName);
}
}
@@ -102,7 +102,7 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
return NULL;
}
- if (cifs_sb_tcon(CIFS_SB(sb))->nocase)
+ if (cifs_sb_master_tcon(CIFS_SB(sb))->nocase)
dentry->d_op = &cifs_ci_dentry_ops;
else
dentry->d_op = &cifs_dentry_ops;
@@ -172,7 +172,7 @@ static void
cifs_std_info_to_fattr(struct cifs_fattr *fattr, FIND_FILE_STANDARD_INFO *info,
struct cifs_sb_info *cifs_sb)
{
- int offset = cifs_sb_tcon(cifs_sb)->ses->server->timeAdj;
+ int offset = cifs_sb_master_tcon(cifs_sb)->ses->server->timeAdj;
memset(fattr, 0, sizeof(*fattr));
fattr->cf_atime = cnvrtDosUnixTm(info->LastAccessDate,