Niels Dossche
9994715333
selftest/vm: test that mremap fails on non-existent vma
...
Add a regression test that validates that mremap fails for vma's that
don't exist.
Link: https://lkml.kernel.org/r/20220427224439.23828-3-dossche.niels@gmail.com
Signed-off-by: Niels Dossche <dossche.niels@gmail.com >
Cc: Mina Almasry <almasrymina@google.com >
Cc: Mike Kravetz <mike.kravetz@oracle.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
2022-05-13 07:20:07 -07:00
Mike Kravetz
ff712a627f
selftests/vm: cleanup hugetlb file after mremap test
...
The hugepage-mremap test will create a file in a hugetlb filesystem. In
a default 'run_vmtests' run, the file will contain all the hugetlb
pages. After the test, the file remains and there are no free hugetlb
pages for subsequent tests. This causes those hugetlb tests to fail.
Change hugepage-mremap to take the name of the hugetlb file as an
argument. Unlink the file within the test, and just to be sure remove
the file in the run_vmtests script.
Link: https://lkml.kernel.org/r/20220201033459.156944-1-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com >
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org >
Acked-by: Yosry Ahmed <yosryahmed@google.com >
Reviewed-by: Muchun Song <songmuchun@bytedance.com >
Reviewed-by: Mina Almasry <almasrymina@google.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-03-05 11:08:32 -08:00
Yosry Ahmed
f77a286de4
mm, hugepages: make memory size variable in hugepage-mremap selftest
...
The hugetlb vma mremap() test currently maps 1GB of memory to trigger
pmd sharing and make sure that 'unshare' path in mremap code works. The
test originally only mapped 10MB of memory (as specified by the header
comment) but was later modified to 1GB to tackle this case.
However, not all machines will have 1GB of memory to spare for this
test. Adding a mapping size arg will allow run_vmtest.sh to pass an
adequate mapping size, while allowing users to run the test
independently with arbitrary size mappings.
Link: https://lkml.kernel.org/r/20211124203805.3700355-1-yosryahmed@google.com
Signed-off-by: Yosry Ahmed <yosryahmed@google.com >
Cc: Shuah Khan <shuah@kernel.org >
Cc: Mina Almasry <almasrymina@google.com >
Cc: Mike Kravetz <mike.kravetz@oracle.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-15 16:30:29 +02:00
Ran Jianping
b65c23f72e
mm: remove duplicate include in hugepage-mremap.c
...
Remove duplicate includes 'unistd.h' included in
'/tools/testing/selftests/vm/hugepage-mremap.c' is duplicated.It is also
included on 23 line.
Link: https://lkml.kernel.org/r/20211018102336.869726-1-ran.jianping@zte.com.cn
Signed-off-by: Ran Jianping <ran.jianping@zte.com.cn >
Reported-by: Zeal Robot <zealci@zte.com.cn >
Cc: Shuah Khan <shuah@kernel.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2021-11-06 13:30:39 -07:00
Mina Almasry
12b6132064
mm, hugepages: add hugetlb vma mremap() test
...
[almasrymina@google.com: v8]
Link: https://lkml.kernel.org/r/20211014200542.4126947-2-almasrymina@google.com
[wanjiabing@vivo.com: remove duplicated include in hugepage-mremap]
Link: https://lkml.kernel.org/r/20211021122944.8857-1-wanjiabing@vivo.com
Link: https://lkml.kernel.org/r/20211013195825.3058275-2-almasrymina@google.com
Signed-off-by: Mina Almasry <almasrymina@google.com >
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com >
Acked-by: Mike Kravetz <mike.kravetz@oracle.com >
Cc: Ken Chen <kenchen@google.com >
Cc: Chris Kennelly <ckennelly@google.com >
Cc: Michal Hocko <mhocko@suse.com >
Cc: Vlastimil Babka <vbabka@suse.cz >
Cc: Kirill Shutemov <kirill@shutemov.name >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2021-11-06 13:30:39 -07:00
