diff options
| author | Donet Tom <[email protected]> | 2024-11-10 00:49:03 -0600 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-11-12 10:14:00 -0800 |
| commit | fae1980347bfd23325099b69db6638b94149a94c (patch) | |
| tree | 52a1c1ced652b4df7442a38210c150064eb4e0f8 /lib/debugobjects.c | |
| parent | a3477c9e02cc9d62a7c8bfc4e7453f5af9a175aa (diff) | |
selftests: hugetlb_dio: fixup check for initial conditions to skip in the start
This test verifies that a hugepage, used as a user buffer for DIO
operations, is correctly freed upon unmapping. To test this, we read the
count of free hugepages before and after the mmap, DIO, and munmap
operations, then check if the free hugepage count is the same.
Reading free hugepages before the test was removed by commit 0268d4579901
('selftests: hugetlb_dio: check for initial conditions to skip at the
start'), causing the test to always fail.
This patch adds back reading the free hugepages before starting the test.
With this patch, the tests are now passing.
Test results without this patch:
./tools/testing/selftests/mm/hugetlb_dio
TAP version 13
1..4
# No. Free pages before allocation : 0
# No. Free pages after munmap : 100
not ok 1 : Huge pages not freed!
# No. Free pages before allocation : 0
# No. Free pages after munmap : 100
not ok 2 : Huge pages not freed!
# No. Free pages before allocation : 0
# No. Free pages after munmap : 100
not ok 3 : Huge pages not freed!
# No. Free pages before allocation : 0
# No. Free pages after munmap : 100
not ok 4 : Huge pages not freed!
# Totals: pass:0 fail:4 xfail:0 xpass:0 skip:0 error:0
Test results with this patch:
/tools/testing/selftests/mm/hugetlb_dio
TAP version 13
1..4
# No. Free pages before allocation : 100
# No. Free pages after munmap : 100
ok 1 : Huge pages freed successfully !
# No. Free pages before allocation : 100
# No. Free pages after munmap : 100
ok 2 : Huge pages freed successfully !
# No. Free pages before allocation : 100
# No. Free pages after munmap : 100
ok 3 : Huge pages freed successfully !
# No. Free pages before allocation : 100
# No. Free pages after munmap : 100
ok 4 : Huge pages freed successfully !
# Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 0268d4579901 ("selftests: hugetlb_dio: check for initial conditions to skip in the start")
Signed-off-by: Donet Tom <[email protected]>
Cc: Muhammad Usama Anjum <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions