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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2020-04-01 21:11:51 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-02 09:35:32 -0700 |
| commit | cabc30da10e677c67ab9a136b1478175734715c5 (patch) | |
| tree | e42948f43e9a17681ace2c9d9f349d2fbf2e8a7d /include/linux | |
| parent | mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge() (diff) | |
| download | wireguard-linux-cabc30da10e677c67ab9a136b1478175734715c5.tar.xz wireguard-linux-cabc30da10e677c67ab9a136b1478175734715c5.zip | |
selftests/vm: fix map_hugetlb length used for testing read and write
Commit fa7b9a805c79 ("tools/selftest/vm: allow choosing mem size and page
size in map_hugetlb") added the possibility to change the size of memory
mapped for the test, but left the read and write test using the default
value. This is unnoticed when mapping a length greater than the default
one, but segfaults otherwise.
Fix read_bytes() and write_bytes() by giving them the real length.
Also fix the call to munmap().
Fixes: fa7b9a805c79 ("tools/selftest/vm: allow choosing mem size and page size in map_hugetlb")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Leonardo Bras <leonardo@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/9a404a13c871c4bd0ba9ede68f69a1225180dd7e.1580978385.git.christophe.leroy@c-s.fr
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions