Commit 0f0b6931 authored by Miaohe Lin's avatar Miaohe Lin Committed by Andrew Morton
Browse files

mm: remove obsolete comment in do_fault_around() 

Since commit 7267ec00 ("mm: postpone page table allocation until we
have page to map"), do_fault_around is not called with page table lock
held.  Cleanup the corresponding comments.

Link: https://lkml.kernel.org/r/20220716080359.38791-1-linmiaohe@huawei.com


Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent b717d6b9

mm/memory.c

+0 −4
Original line number Diff line number Diff line
@@ -4439,10 +4439,6 @@ late_initcall(fault_around_debugfs); 
 * It uses vm_ops->map_pages() to map the pages, which skips the page if it's

 * not ready to be mapped: not up-to-date, locked, etc.

 *

 * This function is called with the page table lock taken. In the split ptlock

 * case the page table lock only protects only those entries which belong to

 * the page table corresponding to the fault address.

 *

 * This function doesn't cross the VMA boundaries, in order to call map_pages()

 * only once.

 *