Ning Qu wrote: > Signed-off-by: Ning Qu <[email protected]> > --- > mm/Kconfig | 4 ++-- > mm/shmem.c | 5 +++++ > 2 files changed, 7 insertions(+), 2 deletions(-) > > diff --git a/mm/Kconfig b/mm/Kconfig > index 562f12f..4d2f90f 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -428,8 +428,8 @@ config TRANSPARENT_HUGEPAGE_PAGECACHE > help > Enabling the option adds support hugepages for file-backed > mappings. It requires transparent hugepage support from > - filesystem side. For now, the only filesystem which supports > - hugepages is ramfs. > + filesystem side. For now, the filesystems which support > + hugepages are: ramfs and tmpfs. > > config CROSS_MEMORY_ATTACH > bool "Cross Memory Support" > diff --git a/mm/shmem.c b/mm/shmem.c > index 75c0ac6..50a3335 100644 > --- a/mm/shmem.c > +++ b/mm/shmem.c > @@ -1672,6 +1672,11 @@ static struct inode *shmem_get_inode(struct > super_block *sb, const struct inode > break; > case S_IFREG: > inode->i_mapping->a_ops = &shmem_aops; > + /* > + * TODO: make tmpfs pages movable > + */ > + mapping_set_gfp_mask(inode->i_mapping, > + GFP_TRANSHUGE & ~__GFP_MOVABLE);
Unlike ramfs, tmpfs pages are movable before transparent page cache patchset. Making tmpfs pages non-movable looks like a big regression to me. It need to be fixed before proposing it upstream. -- Kirill A. Shutemov -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
