Describe when the operation is invoked and the context in which it is invoked, matching the description already added for vm_op->close().
While we're here, update all outdated references to an 'area' field for VMAs to the more consistent 'vma'. Signed-off-by: Lorenzo Stoakes (Oracle) <[email protected]> --- include/linux/mm.h | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index cc5960a84382..12a0b4c63736 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -748,15 +748,20 @@ struct vm_uffd_ops; * to the functions called when a no-page or a wp-page exception occurs. */ struct vm_operations_struct { - void (*open)(struct vm_area_struct * area); + /** + * @open: Called when a VMA is remapped or split. Not called upon first + * mapping a VMA. + * Context: User context. May sleep. Caller holds mmap_lock. + */ + void (*open)(struct vm_area_struct *vma); /** * @close: Called when the VMA is being removed from the MM. * Context: User context. May sleep. Caller holds mmap_lock. */ - void (*close)(struct vm_area_struct * area); + void (*close)(struct vm_area_struct *vma); /* Called any time before splitting to check if it's allowed */ - int (*may_split)(struct vm_area_struct *area, unsigned long addr); - int (*mremap)(struct vm_area_struct *area); + int (*may_split)(struct vm_area_struct *vma, unsigned long addr); + int (*mremap)(struct vm_area_struct *vma); /* * Called by mprotect() to make driver-specific permission * checks before mprotect() is finalised. The VMA must not @@ -768,7 +773,7 @@ struct vm_operations_struct { vm_fault_t (*huge_fault)(struct vm_fault *vmf, unsigned int order); vm_fault_t (*map_pages)(struct vm_fault *vmf, pgoff_t start_pgoff, pgoff_t end_pgoff); - unsigned long (*pagesize)(struct vm_area_struct * area); + unsigned long (*pagesize)(struct vm_area_struct *vma); /* notification that a previously read-only page is about to become * writable, if an error is returned it will cause a SIGBUS */ -- 2.53.0
