CIFS: Make use of common cifs_build_path_to_root for CIFS and SMB2
because the is no difference here. This also adds support of prefixpath
mount option for SMB2.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 07a8ab52..273b349 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -539,8 +539,8 @@
char *s, *p;
char sep;
- full_path = build_path_to_root(vol, cifs_sb,
- cifs_sb_master_tcon(cifs_sb));
+ full_path = cifs_build_path_to_root(vol, cifs_sb,
+ cifs_sb_master_tcon(cifs_sb));
if (full_path == NULL)
return ERR_PTR(-ENOMEM);
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 2cd5ea2..d1a93d3 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -280,9 +280,6 @@
/* set attributes */
int (*set_file_info)(struct inode *, const char *, FILE_BASIC_INFO *,
const unsigned int);
- /* build a full path to the root of the mount */
- char * (*build_path_to_root)(struct smb_vol *, struct cifs_sb_info *,
- struct cifs_tcon *);
/* check if we can send an echo or nor */
bool (*can_echo)(struct TCP_Server_Info *);
/* send echo request */
@@ -1084,15 +1081,6 @@
}
}
-static inline char *
-build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
- struct cifs_tcon *tcon)
-{
- if (!vol->ops->build_path_to_root)
- return NULL;
- return vol->ops->build_path_to_root(vol, cifs_sb, tcon);
-}
-
#ifdef CONFIG_CIFS_STATS
#define cifs_stats_inc atomic_inc
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 5144e9f..7494358 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -60,6 +60,9 @@
extern void exit_cifs_idmap(void);
extern void cifs_destroy_idmaptrees(void);
extern char *build_path_from_dentry(struct dentry *);
+extern char *cifs_build_path_to_root(struct smb_vol *vol,
+ struct cifs_sb_info *cifs_sb,
+ struct cifs_tcon *tcon);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
extern char *cifs_compose_mount_options(const char *sb_mountdata,
const char *fullpath, const struct dfs_info3_param *ref,
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index a483872..5ce5686 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3261,8 +3261,10 @@
#ifdef CONFIG_CIFS_DFS_UPCALL
-/* build_path_to_root returns full path to root when
- * we do not have an exiting connection (tcon) */
+/*
+ * cifs_build_path_to_root returns full path to root when we do not have an
+ * exiting connection (tcon)
+ */
static char *
build_unc_path_to_root(const struct smb_vol *vol,
const struct cifs_sb_info *cifs_sb)
@@ -3518,8 +3520,10 @@
rc = -ENOSYS;
goto mount_fail_check;
}
- /* build_path_to_root works only when we have a valid tcon */
- full_path = build_path_to_root(volume_info, cifs_sb, tcon);
+ /*
+ * cifs_build_path_to_root works only when we have a valid tcon
+ */
+ full_path = cifs_build_path_to_root(volume_info, cifs_sb, tcon);
if (full_path == NULL) {
rc = -ENOMEM;
goto mount_fail_check;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index d3671f2..3b7e0c1 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -44,6 +44,37 @@
} while (!IS_ROOT(direntry));
}
+char *
+cifs_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
+ struct cifs_tcon *tcon)
+{
+ int pplen = vol->prepath ? strlen(vol->prepath) : 0;
+ int dfsplen;
+ char *full_path = NULL;
+
+ /* if no prefix path, simply set path to the root of share to "" */
+ if (pplen == 0) {
+ full_path = kzalloc(1, GFP_KERNEL);
+ return full_path;
+ }
+
+ if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
+ dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
+ else
+ dfsplen = 0;
+
+ full_path = kmalloc(dfsplen + pplen + 1, GFP_KERNEL);
+ if (full_path == NULL)
+ return full_path;
+
+ if (dfsplen)
+ strncpy(full_path, tcon->treeName, dfsplen);
+ strncpy(full_path + dfsplen, vol->prepath, pplen);
+ convert_delimiter(full_path, CIFS_DIR_SEP(cifs_sb));
+ full_path[dfsplen + pplen] = 0; /* add trailing null */
+ return full_path;
+}
+
/* Note: caller must free return buffer */
char *
build_path_from_dentry(struct dentry *direntry)
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 34cea27..a5d234c 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -575,37 +575,6 @@
return CIFSSMBQFileInfo(xid, tcon, fid->netfid, data);
}
-static char *
-cifs_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
- struct cifs_tcon *tcon)
-{
- int pplen = vol->prepath ? strlen(vol->prepath) : 0;
- int dfsplen;
- char *full_path = NULL;
-
- /* if no prefix path, simply set path to the root of share to "" */
- if (pplen == 0) {
- full_path = kzalloc(1, GFP_KERNEL);
- return full_path;
- }
-
- if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
- dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
- else
- dfsplen = 0;
-
- full_path = kmalloc(dfsplen + pplen + 1, GFP_KERNEL);
- if (full_path == NULL)
- return full_path;
-
- if (dfsplen)
- strncpy(full_path, tcon->treeName, dfsplen);
- strncpy(full_path + dfsplen, vol->prepath, pplen);
- convert_delimiter(full_path, CIFS_DIR_SEP(cifs_sb));
- full_path[dfsplen + pplen] = 0; /* add trailing null */
- return full_path;
-}
-
static void
cifs_clear_stats(struct cifs_tcon *tcon)
{
@@ -943,7 +912,6 @@
.set_path_size = CIFSSMBSetEOF,
.set_file_size = CIFSSMBSetFileSize,
.set_file_info = smb_set_file_info,
- .build_path_to_root = cifs_build_path_to_root,
.echo = CIFSSMBEcho,
.mkdir = CIFSSMBMkDir,
.mkdir_setinfo = cifs_mkdir_setinfo,
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 4d9dbe0..137aaf8 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -262,23 +262,6 @@
return rc;
}
-static char *
-smb2_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb,
- struct cifs_tcon *tcon)
-{
- int pplen = vol->prepath ? strlen(vol->prepath) : 0;
- char *full_path = NULL;
-
- /* if no prefix path, simply set path to the root of share to "" */
- if (pplen == 0) {
- full_path = kzalloc(2, GFP_KERNEL);
- return full_path;
- }
-
- cERROR(1, "prefixpath is not supported for SMB2 now");
- return NULL;
-}
-
static bool
smb2_can_echo(struct TCP_Server_Info *server)
{
@@ -613,7 +596,6 @@
.set_path_size = smb2_set_path_size,
.set_file_size = smb2_set_file_size,
.set_file_info = smb2_set_file_info,
- .build_path_to_root = smb2_build_path_to_root,
.mkdir = smb2_mkdir,
.mkdir_setinfo = smb2_mkdir_setinfo,
.rmdir = smb2_rmdir,