Remove the conditional to fail zero-range if the file is not flagged as sparse. You can still zero out a range in SMB2 even for non-sparse files. Tested with stock windows16 server. Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx> --- fs/cifs/smb2ops.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index ca952dc3ec75..56e85f46cd82 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -2664,18 +2664,6 @@ static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon, return rc; } - /* - * Must check if file sparse since fallocate -z (zero range) assumes - * non-sparse allocation - */ - if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) { - rc = -EOPNOTSUPP; - trace_smb3_zero_err(xid, cfile->fid.persistent_fid, tcon->tid, - ses->Suid, offset, len, rc); - free_xid(xid); - return rc; - } - cifs_dbg(FYI, "offset %lld len %lld", offset, len); fsctl_buf.FileOffset = cpu_to_le64(offset); -- 2.13.6