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| author | Kirill A. Shutemov | 2016-07-27 00:26:21 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2016-07-27 01:19:19 +0200 |
| commit | 657e3038c4e6fcd3cef41f2b01c655a685a7b8c7 (patch) | |
| tree | ad015c70c6a1befac182b9113ac4d27cf94dadb7 /mm/Makefile | |
| parent | shmem: add huge pages support (diff) | |
| download | kernel-qcow2-linux-657e3038c4e6fcd3cef41f2b01c655a685a7b8c7.tar.gz kernel-qcow2-linux-657e3038c4e6fcd3cef41f2b01c655a685a7b8c7.tar.xz kernel-qcow2-linux-657e3038c4e6fcd3cef41f2b01c655a685a7b8c7.zip | |
shmem, thp: respect MADV_{NO,}HUGEPAGE for file mappings
Let's wire up existing madvise() hugepage hints for file mappings.
MADV_HUGEPAGE advise shmem to allocate huge page on page fault in the
VMA. It only has effect if the filesystem is mounted with huge=advise
or huge=within_size.
MADV_NOHUGEPAGE prevents hugepage from being allocated on page fault in
the VMA. It doesn't prevent a huge page from being allocated by other
means, i.e. page fault into different mapping or write(2) into file.
Link: http://lkml.kernel.org/r/1466021202-61880-31-git-send-email-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/Makefile')
0 files changed, 0 insertions, 0 deletions