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engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-07_10,2023-11-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 mlxscore=0 phishscore=0 adultscore=0 suspectscore=0 mlxlogscore=999 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310240000 definitions=main-2311070152 X-Proofpoint-GUID: XPYOqWk_Mgz7G1xMDv-mChDEj4O5sgtC X-Proofpoint-ORIG-GUID: XPYOqWk_Mgz7G1xMDv-mChDEj4O5sgtC Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/7/23 5:52 AM, Kefeng Wang wrote: > Let's rename page_copy_prealloc() to folio_prealloc(), which could > be reused in more functons, as it maybe zero the new page, pass a > new should_zero to it, and call the vma_alloc_zeroed_movable_folio() > if need_zero is true. > > Signed-off-by: Kefeng Wang > --- > mm/memory.c | 13 +++++++++---- > 1 file changed, 9 insertions(+), 4 deletions(-) > > diff --git a/mm/memory.c b/mm/memory.c > index b1bff4d245da..062136d25da3 100644 > --- a/mm/memory.c > +++ b/mm/memory.c > @@ -988,12 +988,17 @@ copy_present_pte(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma, > return 0; > } > > -static inline struct folio *page_copy_prealloc(struct mm_struct *src_mm, > - struct vm_area_struct *vma, unsigned long addr) > +static inline struct folio *folio_prealloc(struct mm_struct *src_mm, > + struct vm_area_struct *vma, unsigned long addr, bool need_zero) > { > struct folio *new_folio; > > - new_folio = vma_alloc_folio(GFP_HIGHUSER_MOVABLE, 0, vma, addr, false); > + if (need_zero) > + new_folio = vma_alloc_zeroed_movable_folio(vma, addr); > + else > + new_folio = vma_alloc_folio(GFP_HIGHUSER_MOVABLE, 0, vma, > + addr, false); > + > if (!new_folio) > return NULL; > > @@ -1125,7 +1130,7 @@ copy_pte_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma, > } else if (ret == -EBUSY) { > goto out; > } else if (ret == -EAGAIN) { > - prealloc = page_copy_prealloc(src_mm, src_vma, addr); > + prealloc = folio_prealloc(src_mm, src_vma, addr, false); > if (!prealloc) > return -ENOMEM; > } else if (ret) { Reviewed-by: Sidhartha Kumar