smbd: always flush pending write time update when setting filesize
We need to flush a pending write time update even when we're setting the
filesize to current filesize.
Note that we're already doing it this way in the relevant places listed my
dochelp@MS in
https://lists.samba.org/archive/cifs-protocol/2019-December/003364.html
Cleanup (= Close)
SetBasicInfo
SetAllocationInfo
SetEndOfFileInfo
SetValidDataLengthInfo
Flush
FSCTL_SET_ENCRYPTION
FSCTL_OFFLOAD_WRITE
Cleanup (= Close):
Already implemented by update_write_time_on_close() and friends.
SetBasicInfo:
Currently doesn't flush pending updates. Fixed by a subsequent commit.
SetAllocationInfo:
smb_set_file_allocation_info() when setting a file's allocation size.
SetEndOfFileInfo:
Currently doesn't flush pending updates. Fixed by a subsequent commit.
SetValidDataLengthInfo:
Not implemented, returns NT_STATUS_NOT_SUPPORTED which seems wrong btw, as
SetValidDataLengthInfo IS listed in MS-SMB2 2.2.39.
Flush:
Currently doesn't flush pending updates. Fixed by subsequent commit.
FSCTL_SET_ENCRYPTION:
Windows 2016 doesn't flush a pending writetime update, verified with a
smbtorture test.
FSCTL_OFFLOAD_WRITE:
NT_STATUS_NOT_IMPLEMENTED
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14150
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>