"copy_file_range03.c:52: TFAIL: diff_us = 0, copy_file_range might not update timestamp"

"copy_file_range03.c:52: TFAIL: diff_us = 0, copy_file_range might not update timestamp"

[Naresh Kamboju]

The LTP syscalls copy_file_range01 and copy_file_range03 failed on all devices
running Linux next-20231204 kernel.

## Test Regressions (compared to next-20231201)
* qemu-arm64, ltp-syscalls
* e850-96, ltp-syscalls
* x15, ltp-syscalls
* x86, ltp-syscalls
  - copy_file_range01
  - copy_file_range03


Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Test log:
-------  

tst_test.c:1119: TINFO: Mounting /dev/loop0 to 
       /scratch/ltp-XLc1JftiUn/LTP_copns9ldR/mnt_point fstyp=ext2 flags=0
copy_file_range.h:36: TINFO: Testing libc copy_file_range()
Test timeouted,sending SIGKILL!
[ ] EXT4-fs (loop0): unmounting filesystem c58dd839-66b3-4c79-81f7-9cc9a7ed0dfd.
tst_test.c:1628: TINFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
tst_test.c:1630: TBROK: Test killed! (timeout?)

<trim>

tst_test.c:1690: TINFO: LTP version: 20230929
tst_test.c:1574: TINFO: Timeout per run is 0h 05m 00s
copy_file_range.h:36: TINFO: Testing libc copy_file_range()
copy_file_range03.c:52: TFAIL: diff_us = 0, copy_file_range might not update timestamp

Links:
 - https://lkft.validation.linaro.org/scheduler/job/7077286#L37034
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20231204/testrun/21474387/suite/ltp-syscalls/test/copy_file_range03/log
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20231204/testrun/21474387/suite/ltp-syscalls/test/copy_file_range03/history/
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20231204/testrun/21474387/suite/ltp-syscalls/test/copy_file_range01/history/


--
Linaro LKFT
https://lkft.linaro.org