From 8f665199fa702988c627662f7673a11ef7e3c71b Mon Sep 17 00:00:00 2001 From: Steve French Date: Mon, 22 Apr 2019 16:37:42 -0500 Subject: [PATCH] SMB3: allowing extending size if allocating on non-sparse file This is simply the same as changing the end of file. Signed-off-by: Steve French Reviewed-by: Ronnie Sahlberg --- fs/cifs/smb2ops.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index c3480a976660..f8cfcba797f3 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2920,9 +2920,12 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, else if (i_size_read(inode) >= off + len) /* not extending file and already not sparse */ rc = 0; - /* BB: in future add else clause to extend file */ - else - rc = -EOPNOTSUPP; + else { + __le64 length = cpu_to_le64(off+len); + + rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, + cfile->fid.volatile_fid, cfile->pid, &length); + } if (rc) trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid, tcon->ses->Suid, off, len, rc); -- 2.17.1