summaryrefslogtreecommitdiff
path: root/include/linux/hmm.h
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2019-07-25 17:56:47 -0700
committerJason Gunthorpe <jgg@mellanox.com>2019-07-26 11:10:53 -0300
commitd45d464b118f428229d91769c8a3cc1e2e0bb4d5 (patch)
tree2cc3f6a9435790fb3038c840e77dea66ffb45323 /include/linux/hmm.h
parent9a4903e49e495bfd2650862dfae4178bebe4db9c (diff)
mm/hmm: merge hmm_range_snapshot into hmm_range_fault
Add a HMM_FAULT_SNAPSHOT flag so that hmm_range_snapshot can be merged into the almost identical hmm_range_fault function. Link: https://lore.kernel.org/r/20190726005650.2566-5-rcampbell@nvidia.com Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/linux/hmm.h')
-rw-r--r--include/linux/hmm.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index 89a141060e5b..90dc5944b1bc 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -413,7 +413,9 @@ void hmm_range_unregister(struct hmm_range *range);
*/
#define HMM_FAULT_ALLOW_RETRY (1 << 0)
-long hmm_range_snapshot(struct hmm_range *range);
+/* Don't fault in missing PTEs, just snapshot the current state. */
+#define HMM_FAULT_SNAPSHOT (1 << 1)
+
long hmm_range_fault(struct hmm_range *range, unsigned int flags);
long hmm_range_dma_map(struct hmm_range *range,