[v6,62/99] dax: Convert dax_insert_pfn_mkwrite to XArray

Commit Message

Matthew Wilcox (Oracle) Jan. 17, 2018, 8:21 p.m. UTC

From: Matthew Wilcox <[e-mail]>

Signed-off-by: Matthew Wilcox <[e-mail]>
---
 fs/dax.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Patch

diff --git a/fs/dax.c b/fs/dax.c
index b66b8c896ed8..e6b25ef112f2 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1497,21 +1497,21 @@  static int dax_insert_pfn_mkwrite(struct vm_fault *vmf,
 	void *entry;
 	int vmf_ret, error;
 
-	xa_lock_irq(&mapping->pages);
+	xas_lock_irq(&xas);
 	entry = get_unlocked_mapping_entry(&xas);
 	/* Did we race with someone splitting entry or so? */
 	if (!entry ||
 	    (pe_size == PE_SIZE_PTE && !dax_is_pte_entry(entry)) ||
 	    (pe_size == PE_SIZE_PMD && !dax_is_pmd_entry(entry))) {
 		put_unlocked_mapping_entry(&xas, entry);
-		xa_unlock_irq(&mapping->pages);
+		xas_unlock_irq(&xas);
 		trace_dax_insert_pfn_mkwrite_no_entry(mapping->host, vmf,
 						      VM_FAULT_NOPAGE);
 		return VM_FAULT_NOPAGE;
 	}
-	radix_tree_tag_set(&mapping->pages, index, PAGECACHE_TAG_DIRTY);
+	xas_set_tag(&xas, PAGECACHE_TAG_DIRTY);
 	entry = lock_slot(&xas);
-	xa_unlock_irq(&mapping->pages);
+	xas_unlock_irq(&xas);
 	switch (pe_size) {
 	case PE_SIZE_PTE:
 		error = vm_insert_mixed_mkwrite(vmf->vma, vmf->address, pfn);