From: Christoph Hellwig <hch@lst.de>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>,
Ralph Campbell <rcampbell@nvidia.com>,
linux-mm@kvack.org
Subject: [PATCH 1/5] mm: don't provide a stub for hmm_range_fault
Date: Mon, 16 Mar 2020 14:53:06 +0100 [thread overview]
Message-ID: <20200316135310.899364-2-hch@lst.de> (raw)
In-Reply-To: <20200316135310.899364-1-hch@lst.de>
All callers of hmm_range_fault depend on CONFIG_HMM_MIRROR, so
don't bother with a stub.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/linux/hmm.h | 7 -------
1 file changed, 7 deletions(-)
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index ddf9f7144c43..c102e359b59d 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -225,17 +225,10 @@ static inline uint64_t hmm_device_entry_from_pfn(const struct hmm_range *range,
/* Don't fault in missing PTEs, just snapshot the current state. */
#define HMM_FAULT_SNAPSHOT (1 << 1)
-#ifdef CONFIG_HMM_MIRROR
/*
* Please see Documentation/vm/hmm.rst for how to use the range API.
*/
long hmm_range_fault(struct hmm_range *range, unsigned int flags);
-#else
-static inline long hmm_range_fault(struct hmm_range *range, unsigned int flags)
-{
- return -EOPNOTSUPP;
-}
-#endif
/*
* HMM_RANGE_DEFAULT_TIMEOUT - default timeout (ms) when waiting for a range
--
2.24.1
next prev parent reply other threads:[~2020-03-16 13:57 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-16 13:53 misc hmm cleanups Christoph Hellwig
2020-03-16 13:53 ` Christoph Hellwig [this message]
2020-03-16 14:37 ` [PATCH 1/5] mm: don't provide a stub for hmm_range_fault Zi Yan
2020-03-16 16:45 ` Jason Gunthorpe
2020-03-16 13:53 ` [PATCH 2/5] mm: remove the unused HMM_FAULT_ALLOW_RETRY flag Christoph Hellwig
2020-03-16 16:44 ` Jason Gunthorpe
2020-03-16 13:53 ` [PATCH 3/5] mm: simplify hmm_vma_walk_hugetlb_entry Christoph Hellwig
2020-03-16 16:43 ` Jason Gunthorpe
2020-03-16 13:53 ` [PATCH 4/5] mm: don't handle the non-fault case in hmm_vma_walk_hole_ Christoph Hellwig
2020-03-16 16:43 ` Jason Gunthorpe
2020-03-16 13:53 ` [PATCH 5/5] mm: merge hmm_vma_do_fault into into hmm_vma_walk_hole_ Christoph Hellwig
2020-03-16 16:41 ` Jason Gunthorpe
2020-03-16 16:51 ` Christoph Hellwig
2020-03-16 18:01 ` Christoph Hellwig
2020-03-17 18:38 ` misc hmm cleanups Jason Gunthorpe
2020-03-17 18:55 ` Christoph Hellwig
2020-03-19 0:27 ` Jason Gunthorpe
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