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authorJan Kara <jack@suse.cz>2017-11-01 16:36:35 +0100
committerDan Williams <dan.j.williams@intel.com>2017-11-03 06:26:23 -0700
commitd2c43ef13327478b299db0f58193495367c6d4ae (patch)
tree8d5daaa905c7189033e4816049babc7a5906215e /fs/dax.c
parenta0987ad5c576626fdb40547f5ac99b4f90608dda (diff)
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dax: Create local variable for vmf->flags & FAULT_FLAG_WRITE test
There are already two users and more are coming. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c5
1 files 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;
}