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| author | Christoph Hellwig <hch@lst.de> | 2019-08-06 19:05:50 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-08-07 14:58:06 -0300 |
| commit | 251bbe59b7a6362f4c417aa8af281d44f9edfa0e (patch) | |
| tree | 7ea191249eb537fb6d565cb2804804aa281bb660 /mm/hmm.c | |
| parent | 9d3973d60f0abd3985229bd895f45e2b8974344c (diff) | |
| download | linux-stable-251bbe59b7a6362f4c417aa8af281d44f9edfa0e.tar.gz linux-stable-251bbe59b7a6362f4c417aa8af281d44f9edfa0e.tar.bz2 linux-stable-251bbe59b7a6362f4c417aa8af281d44f9edfa0e.zip | |
mm/hmm: cleanup the hmm_vma_walk_hugetlb_entry stub
Stub out the whole function and assign NULL to the .hugetlb_entry method
if CONFIG_HUGETLB_PAGE is not set, as the method won't ever be called in
that case.
Link: https://lore.kernel.org/r/20190806160554.14046-13-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'mm/hmm.c')
| -rw-r--r-- | mm/hmm.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -774,11 +774,11 @@ again: #define hmm_vma_walk_pud NULL #endif +#ifdef CONFIG_HUGETLB_PAGE static int hmm_vma_walk_hugetlb_entry(pte_t *pte, unsigned long hmask, unsigned long start, unsigned long end, struct mm_walk *walk) { -#ifdef CONFIG_HUGETLB_PAGE unsigned long addr = start, i, pfn; struct hmm_vma_walk *hmm_vma_walk = walk->private; struct hmm_range *range = hmm_vma_walk->range; @@ -817,10 +817,10 @@ unlock: return hmm_vma_walk_hole_(addr, end, fault, write_fault, walk); return ret; -#else /* CONFIG_HUGETLB_PAGE */ - return -EINVAL; -#endif } +#else +#define hmm_vma_walk_hugetlb_entry NULL +#endif /* CONFIG_HUGETLB_PAGE */ static void hmm_pfns_clear(struct hmm_range *range, uint64_t *pfns, |