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404c04e010
linux/tools/testing
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Sayali Patil 404c04e010 selftests/mm: fix hugetlb pathname construction in charge_reserved_hugetlb.sh 
The charge_reserved_hugetlb.sh script assumes hugetlb cgroup memory
interface file names use the "<size>MB" format
(e.g. hugetlb.1024MB.current).
This assumption breaks on systems with larger huge pages such as 1GB,
where the kernel exposes normalized units:
    hugetlb.1GB.current
    hugetlb.1GB.max
    hugetlb.1GB.rsvd.max
    ...

As a result, the script attempts to access files like
hugetlb.1024MB.current, which do not exist when the kernel reports the
size in GB.

Normalize the huge page size and construct the pathname using the
appropriate unit (MB or GB), matching the hugetlb controller naming.

Link: https://lore.kernel.org/04b6b49e4a2acf46319f627caf82b09e6dc1ad7f.1779296493.git.sayalip@linux.ibm.com
Fixes: 209376ed2a ("selftests/vm: make charge_reserved_hugetlb.sh work with existing cgroup setting")
Fixes: 29750f71a9 ("hugetlb_cgroup: add hugetlb_cgroup reservation tests")
Signed-off-by: Sayali Patil <sayalip@linux.ibm.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-21 11:37:32 -07:00
..
crypto/chacha20-s390
cxl Merge branch 'for-7.1/cxl-region-refactor' into cxl-for-next 2026-04-03 12:30:57 -07:00
fault-injection
ktest ktest: Add logfile to failure directory 2026-04-20 15:23:13 -04:00
kunit linux_kselftest-kunit-7.1-rc1 2026-04-14 17:39:42 -07:00
memblock mm: move free_reserved_area() to mm/memblock.c 2026-04-01 11:19:46 +03:00
nvdimm tools/testing/nvdimm: Use per-DIMM device handle 2025-11-03 16:47:13 -06:00
radix-tree MAINTAINERS: update Liam's email address 2026-04-27 05:54:25 -07:00
rbtree
scatterlist mm: remove nth_page() 2025-09-21 14:22:10 -07:00
selftests selftests/mm: fix hugetlb pathname construction in charge_reserved_hugetlb.sh 2026-06-21 11:37:32 -07:00
shared tools: Update context analysis macros in compiler_types.h 2026-01-28 09:25:45 +01:00
vma mm/vma: eliminate mmap_action->error_hook, introduce error_override 2026-06-04 14:45:00 -07:00
vsock vsock/test: add MSG_PEEK after partial recv test 2026-04-16 19:34:22 -07:00