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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-23 15:38:08 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-23 15:38:08 +0100
commite3e9fc7fa7ad221cc2e7b207d514cc84ed393251 (patch)
tree7de34df1844075bd3ed0391546d74ae9dab5fcae /mm/mmap.c
parentdd2f003e4e85b154754d5a83e0c3b1b517d1f802 (diff)
parent2241ab53cbb5cdb08a6b2d4688feb13971058f65 (diff)
Merge 6.2-rc5 into usb-next
We need the USB fixes in here and this resolves merge conflicts as reported in linux-next in the following files: drivers/usb/host/xhci.c drivers/usb/host/xhci.h drivers/usb/typec/ucsi/ucsi.c Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/mmap.c')
-rw-r--r--mm/mmap.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index 87d929316d57..425a9349e610 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1524,6 +1524,10 @@ int vma_wants_writenotify(struct vm_area_struct *vma, pgprot_t vm_page_prot)
if (vma_soft_dirty_enabled(vma) && !is_vm_hugetlb_page(vma))
return 1;
+ /* Do we need write faults for uffd-wp tracking? */
+ if (userfaultfd_wp(vma))
+ return 1;
+
/* Specialty mapping? */
if (vm_flags & VM_PFNMAP)
return 0;
@@ -2290,7 +2294,7 @@ static inline int munmap_sidetree(struct vm_area_struct *vma,
* @start: The aligned start address to munmap.
* @end: The aligned end address to munmap.
* @uf: The userfaultfd list_head
- * @downgrade: Set to true to attempt a write downgrade of the mmap_sem
+ * @downgrade: Set to true to attempt a write downgrade of the mmap_lock
*
* If @downgrade is true, check return code for potential release of the lock.
*/
@@ -2465,7 +2469,7 @@ map_count_exceeded:
* @len: The length of the range to munmap
* @uf: The userfaultfd list_head
* @downgrade: set to true if the user wants to attempt to write_downgrade the
- * mmap_sem
+ * mmap_lock
*
* This function takes a @mas that is either pointing to the previous VMA or set
* to MA_START and sets it up to remove the mapping(s). The @len will be