From 268a635d414df45a4a8da699d431da8f8ffcf014 Mon Sep 17 00:00:00 2001 From: Aurelien Aptel Date: Mon, 13 Feb 2017 16:14:17 +0100 Subject: CIFS: add build_path_from_dentry_optional_prefix() this function does the same thing as add build_path_from_dentry() but takes a boolean parameter to decide whether or not to prefix the path with the tree name. we cannot rely on tcon->Flags & SMB_SHARE_IS_IN_DFS for SMB2 as smb2 code never sets tcon->Flags but it sets tcon->share_flags and it seems the SMB_SHARE_IS_IN_DFS has different semantics in SMB2: the prefix shouldn't be added everytime it was in SMB1. Signed-off-by: Aurelien Aptel Acked-by: Pavel Shilovsky Signed-off-by: Steve French --- fs/cifs/dir.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'fs/cifs/dir.c') diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 2c227a99f369..56366e984076 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -80,6 +80,17 @@ cifs_build_path_to_root(struct smb_vol *vol, struct cifs_sb_info *cifs_sb, /* Note: caller must free return buffer */ char * build_path_from_dentry(struct dentry *direntry) +{ + struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb); + struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); + bool prefix = tcon->Flags & SMB_SHARE_IS_IN_DFS; + + return build_path_from_dentry_optional_prefix(direntry, + prefix); +} + +char * +build_path_from_dentry_optional_prefix(struct dentry *direntry, bool prefix) { struct dentry *temp; int namelen; @@ -92,7 +103,7 @@ build_path_from_dentry(struct dentry *direntry) unsigned seq; dirsep = CIFS_DIR_SEP(cifs_sb); - if (tcon->Flags & SMB_SHARE_IS_IN_DFS) + if (prefix) dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1); else dfsplen = 0; -- cgit v1.2.3-55-g7522