From 497258dfafcc6b88e7c4c46a38a479721d44cf41 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 20 Aug 2024 15:14:47 -0700 Subject: mm: remove legacy install_special_mapping() code All relevant architectures had already been converted to the new interface (which just has an underscore in front of the name - not very imaginative naming), this just force-converts the stragglers. The modern interface is almost identical to the old one, except instead of the page pointer it takes a "struct vm_special_mapping" that describes the mapping (and contains the page pointer as one member), and it returns the resulting 'vma' instead of just the error code. Getting rid of the old interface also gets rid of some special casing, which had caused problems with the mremap extensions to "struct vm_special_mapping". [akpm@linux-foundation.org: coding-style cleanups] Link: https://lkml.kernel.org/r/CAHk-=whvR+z=0=0gzgdfUiK70JTa-=+9vxD-4T=3BagXR6dciA@mail.gmail.comTested-by: Rob Landley # arch/sh/ Link: https://lore.kernel.org/all/20240819195120.GA1113263@thelio-3990X/ Signed-off-by: Linus Torvalds Cc: Nathan Chancellor Cc: Michael Ellerman Cc: Anton Ivanov Cc: Brian Cain Cc: Christophe Leroy Cc: Dinh Nguyen Cc: Guo Ren Cc: Jeff Xu Cc: Johannes Berg Cc: John Paul Adrian Glaubitz Cc: Liam R. Howlett Cc: Nicholas Piggin Cc: Pedro Falcato Cc: Richard Weinberger Cc: Rich Felker Cc: Rob Landley Cc: Yoshinori Sato Signed-off-by: Andrew Morton --- include/linux/mm.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mm.h b/include/linux/mm.h index b1eed30fdc06..0fde51c0532f 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3263,10 +3263,6 @@ extern struct vm_area_struct *_install_special_mapping(struct mm_struct *mm, unsigned long addr, unsigned long len, unsigned long flags, const struct vm_special_mapping *spec); -/* This is an obsolete alternative to _install_special_mapping. */ -extern int install_special_mapping(struct mm_struct *mm, - unsigned long addr, unsigned long len, - unsigned long flags, struct page **pages); unsigned long randomize_stack_top(unsigned long stack_top); unsigned long randomize_page(unsigned long start, unsigned long range); -- cgit v1.2.3