Currently we have two times the same few lines repeated
in filemap_map_pmd(). Deduplicate them and fix some code
style issues.
Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>
---
mm/filemap.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/mm/filemap.c b/mm/filemap.c
index daa0e23a6ee6..07c654202870 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3203,11 +3203,8 @@ static bool filemap_map_pmd(struct vm_fault *vmf, struct page *page)
struct mm_struct *mm = vmf->vma->vm_mm;
/* Huge page is mapped? No need to proceed. */
- if (pmd_trans_huge(*vmf->pmd)) {
- unlock_page(page);
- put_page(page);
- return true;
- }
+ if (pmd_trans_huge(*vmf->pmd))
+ goto out;
if (pmd_none(*vmf->pmd) && PageTransHuge(page)) {
vm_fault_t ret = do_set_pmd(vmf, page);
@@ -3222,13 +3219,15 @@ static bool filemap_map_pmd(struct vm_fault *vmf, struct page *page)
pmd_install(mm, vmf->pmd, &vmf->prealloc_pte);
/* See comment in handle_pte_fault() */
- if (pmd_devmap_trans_unstable(vmf->pmd)) {
- unlock_page(page);
- put_page(page);
- return true;
- }
+ if (pmd_devmap_trans_unstable(vmf->pmd))
+ goto out;
return false;
+
+out:
+ unlock_page(page);
+ put_page(page);
+ return true;
}
static struct page *next_uptodate_page(struct page *page,
--
2.11.0
