From 71eab6dfd91eabf06fe782a590c07e8a0795f5ea Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 1 Nov 2017 16:36:43 +0100 Subject: dax: Implement dax_finish_sync_fault() Implement a function that filesystems can call to finish handling of synchronous page faults. It takes care of syncing appropriare file range and insertion of page table entry. Reviewed-by: Ross Zwisler Reviewed-by: Christoph Hellwig Signed-off-by: Jan Kara Signed-off-by: Dan Williams --- include/linux/dax.h | 2 ++ include/trace/events/fs_dax.h | 2 ++ 2 files changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/dax.h b/include/linux/dax.h index e7fa4b8f45bc..d403f78b706c 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -96,6 +96,8 @@ ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops); int dax_iomap_fault(struct vm_fault *vmf, enum page_entry_size pe_size, pfn_t *pfnp, const struct iomap_ops *ops); +int dax_finish_sync_fault(struct vm_fault *vmf, enum page_entry_size pe_size, + pfn_t pfn); int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index); int dax_invalidate_mapping_entry_sync(struct address_space *mapping, pgoff_t index); diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h index 88a9d19b8ff8..7725459fafef 100644 --- a/include/trace/events/fs_dax.h +++ b/include/trace/events/fs_dax.h @@ -190,6 +190,8 @@ DEFINE_EVENT(dax_pte_fault_class, name, \ DEFINE_PTE_FAULT_EVENT(dax_pte_fault); DEFINE_PTE_FAULT_EVENT(dax_pte_fault_done); DEFINE_PTE_FAULT_EVENT(dax_load_hole); +DEFINE_PTE_FAULT_EVENT(dax_insert_pfn_mkwrite_no_entry); +DEFINE_PTE_FAULT_EVENT(dax_insert_pfn_mkwrite); TRACE_EVENT(dax_insert_mapping, TP_PROTO(struct inode *inode, struct vm_fault *vmf, void *radix_entry), -- cgit v1.2.3