[PATCH 06/17] dax: Create local variable for vmf->flags & FAULT_FLAG_WRITE test
From: Jan Kara <hidden>
Date: 2017-10-24 15:24:03
Also in:
linux-ext4, linux-fsdevel, linux-mm, linux-xfs, nvdimm
Subsystem:
filesystem direct access (dax), filesystems (vfs and infrastructure), the rest · Maintainers:
Dan Williams, Alexander Viro, Christian Brauner, Linus Torvalds
There are already two users and more are coming. Reviewed-by: Christoph Hellwig <redacted> Reviewed-by: Ross Zwisler <ross.zwisler-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> Signed-off-by: Jan Kara <redacted> --- fs/dax.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index c09465884bbe..5ea71381dba0 100644
--- a/fs/dax.c
+++ b/fs/dax.c@@ -1116,6 +1116,7 @@ static int dax_iomap_pte_fault(struct vm_fault *vmf, struct iomap iomap = { 0 }; unsigned flags = IOMAP_FAULT; int error, major = 0; + bool write = vmf->flags & FAULT_FLAG_WRITE; int vmf_ret = 0; void *entry;
@@ -1130,7 +1131,7 @@ static int dax_iomap_pte_fault(struct vm_fault *vmf, goto out; } - if ((vmf->flags & FAULT_FLAG_WRITE) && !vmf->cow_page) + if (write && !vmf->cow_page) flags |= IOMAP_WRITE; entry = grab_mapping_entry(mapping, vmf->pgoff, 0);
@@ -1207,7 +1208,7 @@ static int dax_iomap_pte_fault(struct vm_fault *vmf, break; case IOMAP_UNWRITTEN: case IOMAP_HOLE: - if (!(vmf->flags & FAULT_FLAG_WRITE)) { + if (!write) { vmf_ret = dax_load_hole(mapping, entry, vmf); goto finish_iomap; }
--
2.12.3