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authorRonnie Sahlberg <lsahlber@redhat.com>2019-03-13 14:37:49 +1000
committerSteve French <stfrench@microsoft.com>2019-03-14 19:32:35 -0500
commit72c419d9b073628d3b5b0b2fc787b724f1a8c726 (patch)
tree47d208ee32973389bf30d33fc85c1b7a2617aaff /fs/cifs/smb2pdu.h
parentccdc77a3054afb851473e43f4d60890263cd22e9 (diff)
downloadlinux-72c419d9b073628d3b5b0b2fc787b724f1a8c726.tar.bz2
cifs: fix smb3_zero_range so it can expand the file-size when required
This allows fallocate -z to work against a Windows2016 share. This is due to the SMB3 ZERO_RANGE command does not modify the filesize. To address this we will now append a compounded SET-INFO to update the end-of-file information. This brings xfstests generic/469 closer to working against a windows share. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 0bd4d4802701..ee8977688e21 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -959,6 +959,13 @@ struct duplicate_extents_to_file {
__le64 ByteCount; /* Bytes to be copied */
} __packed;
+/*
+ * Maximum number of iovs we need for an ioctl request.
+ * [0] : struct smb2_ioctl_req
+ * [1] : in_data
+ */
+#define SMB2_IOCTL_IOV_SIZE 2
+
struct smb2_ioctl_req {
struct smb2_sync_hdr sync_hdr;
__le16 StructureSize; /* Must be 57 */