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cifs: zero-range does not require the file is sparse 

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.

Fixes 5 xfstests (033, 149, 155, 180, 349)

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Ronnie Sahlberg 2019-04-12 09:56:23 +10:00 committed by Steve French
parent 0df7edd9dc
commit c7fe388d76
1 changed files with 0 additions and 12 deletions
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12
fs/cifs/smb2ops.c
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@ -2679,18 +2679,6 @@ 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);