diff options
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/mm/transhuge.rst | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst index a16a04841b96..1654211cc6cf 100644 --- a/Documentation/admin-guide/mm/transhuge.rst +++ b/Documentation/admin-guide/mm/transhuge.rst @@ -419,6 +419,8 @@ option: ``huge=``. It can have following values: always Attempt to allocate huge pages every time we need a new page; + Always try PMD-sized huge pages first, and fall back to smaller-sized + huge pages if the PMD-sized huge page allocation fails; never Do not allocate huge pages. Note that ``madvise(..., MADV_COLLAPSE)`` @@ -426,7 +428,9 @@ never is specified everywhere; within_size - Only allocate huge page if it will be fully within i_size. + Only allocate huge page if it will be fully within i_size; + Always try PMD-sized huge pages first, and fall back to smaller-sized + huge pages if the PMD-sized huge page allocation fails; Also respect madvise() hints; advise |