diff options
| author | Sidhartha Kumar <sidhartha.kumar@oracle.com> | 2023-07-10 22:35:44 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 10:12:21 -0700 |
| commit | 86aa6998ad00af823de81d12d41d7063c14298a0 (patch) | |
| tree | 9ee5c67a22ce2c359e2fcd51a37e5122bcffe80c /mm/memory.c | |
| parent | d31155b8f29ce380f7816e54dee161db6d752909 (diff) | |
mm/memory: pass folio into do_page_mkwrite()
Saves one implicit call to compound_head().
I'm not sure if I should change the name of the function to
do_folio_mkwrite() and update the description comment to reference a folio
as the vm_op is still called page_mkwrite.
Link: https://lkml.kernel.org/r/20230711053544.156617-1-sidhartha.kumar@oracle.com
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/memory.c b/mm/memory.c index 36b164ee9ffb..44d11812a88f 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2933,10 +2933,9 @@ static gfp_t __get_fault_gfp_mask(struct vm_area_struct *vma) * * We do this without the lock held, so that it can sleep if it needs to. */ -static vm_fault_t do_page_mkwrite(struct vm_fault *vmf) +static vm_fault_t do_page_mkwrite(struct vm_fault *vmf, struct folio *folio) { vm_fault_t ret; - struct folio *folio = page_folio(vmf->page); unsigned int old_flags = vmf->flags; vmf->flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE; @@ -3298,7 +3297,7 @@ static vm_fault_t wp_page_shared(struct vm_fault *vmf, struct folio *folio) vm_fault_t tmp; pte_unmap_unlock(vmf->pte, vmf->ptl); - tmp = do_page_mkwrite(vmf); + tmp = do_page_mkwrite(vmf, folio); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { folio_put(folio); @@ -4621,7 +4620,7 @@ static vm_fault_t do_shared_fault(struct vm_fault *vmf) */ if (vma->vm_ops->page_mkwrite) { folio_unlock(folio); - tmp = do_page_mkwrite(vmf); + tmp = do_page_mkwrite(vmf, folio); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { folio_put(folio); |