diff options
| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2020-08-11 18:37:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 10:58:02 -0700 |
| commit | d92bbc2719bd2be237ee336113b63492a6baca3b (patch) | |
| tree | f1d571ea966d80dd7bb0538822d4b884c4036274 /mm/mempolicy.c | |
| parent | b4b382238ed2f94f0d3860f9120b66404fa99463 (diff) | |
mm/hugetlb: unify migration callbacks
There is no difference between two migration callback functions,
alloc_huge_page_node() and alloc_huge_page_nodemask(), except
__GFP_THISNODE handling. It's redundant to have two almost similar
functions in order to handle this flag. So, this patch tries to remove
one by introducing a new argument, gfp_mask, to
alloc_huge_page_nodemask().
After introducing gfp_mask argument, it's caller's job to provide correct
gfp_mask. So, every callsites for alloc_huge_page_nodemask() are changed
to provide gfp_mask.
Note that it's safe to remove a node id check in alloc_huge_page_node()
since there is no caller passing NUMA_NO_NODE as a node id.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Roman Gushchin <guro@fb.com>
Link: http://lkml.kernel.org/r/1594622517-20681-4-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 25b7e412c20b..9ae2b704bdf6 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1068,10 +1068,12 @@ static int migrate_page_add(struct page *page, struct list_head *pagelist, /* page allocation callback for NUMA node migration */ struct page *alloc_new_node_page(struct page *page, unsigned long node) { - if (PageHuge(page)) - return alloc_huge_page_node(page_hstate(compound_head(page)), - node); - else if (PageTransHuge(page)) { + if (PageHuge(page)) { + struct hstate *h = page_hstate(compound_head(page)); + gfp_t gfp_mask = htlb_alloc_mask(h) | __GFP_THISNODE; + + return alloc_huge_page_nodemask(h, node, NULL, gfp_mask); + } else if (PageTransHuge(page)) { struct page *thp; thp = alloc_pages_node(node, |