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

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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




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