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| author |   David Rientjes <rientjes@google.com> | 2015-04-15 16:14:26 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 16:35:19 -0700 |
| commit | 80d6b94bd69a7a49b52bf503ef6a841f43cf5bbb (patch) | |
| tree | ae701bac5add788e58774bb009f3a335e072eee2 /tools/testing/selftests/vm/map_hugetlb.c | |
| parent | thp: do not adjust zone water marks if khugepaged is not started (diff) | |
| download | linux-dev-80d6b94bd69a7a49b52bf503ef6a841f43cf5bbb.tar.xz linux-dev-80d6b94bd69a7a49b52bf503ef6a841f43cf5bbb.zip | |
mm, doc: cleanup and clarify munmap behavior for hugetlb memory
munmap(2) of hugetlb memory requires a length that is hugepage aligned,
otherwise it may fail. Add this to the documentation.
This also cleans up the documentation and separates it into logical units:
one part refers to MAP_HUGETLB and another part refers to requirements for
shared memory segments.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Joern Engel <joern@logfs.org>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Eric B Munson <emunson@akamai.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/vm/map_hugetlb.c')
0 files changed, 0 insertions, 0 deletions