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authorDavid Hildenbrand <david@redhat.com>2024-08-02 17:55:23 +0200
committerAndrew Morton <akpm@linux-foundation.org>2024-09-01 20:26:01 -0700
commit7290840de65e04c1fc59dab692468fc9600c6038 (patch)
tree9f23351a9b659a6c9aa1c6c54c4d71ec4f3567f1 /mm/gup.c
parent0b31a3cef4462ef99ef4667291091ecbcfcc8749 (diff)
mm: remove follow_page()
All users are gone, let's remove it and any leftovers in comments. We'll leave any FOLL/follow_page_() naming cleanups as future work. Link: https://lkml.kernel.org/r/20240802155524.517137-11-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Claudio Imbrenda <imbrenda@linux.ibm.com> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/gup.c')
-rw-r--r--mm/gup.c24
1 files changed, 1 insertions, 23 deletions
diff --git a/mm/gup.c b/mm/gup.c
index 3e8484c893aa..d19884e097fd 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1072,28 +1072,6 @@ static struct page *follow_page_mask(struct vm_area_struct *vma,
return page;
}
-struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
- unsigned int foll_flags)
-{
- struct follow_page_context ctx = { NULL };
- struct page *page;
-
- if (vma_is_secretmem(vma))
- return NULL;
-
- if (WARN_ON_ONCE(foll_flags & FOLL_PIN))
- return NULL;
-
- /*
- * We never set FOLL_HONOR_NUMA_FAULT because callers don't expect
- * to fail on PROT_NONE-mapped pages.
- */
- page = follow_page_mask(vma, address, foll_flags, &ctx);
- if (ctx.pgmap)
- put_dev_pagemap(ctx.pgmap);
- return page;
-}
-
static int get_gate_page(struct mm_struct *mm, unsigned long address,
unsigned int gup_flags, struct vm_area_struct **vma,
struct page **page)
@@ -2519,7 +2497,7 @@ static bool is_valid_gup_args(struct page **pages, int *locked,
* These flags not allowed to be specified externally to the gup
* interfaces:
* - FOLL_TOUCH/FOLL_PIN/FOLL_TRIED/FOLL_FAST_ONLY are internal only
- * - FOLL_REMOTE is internal only and used on follow_page()
+ * - FOLL_REMOTE is internal only, set in (get|pin)_user_pages_remote()
* - FOLL_UNLOCKABLE is internal only and used if locked is !NULL
*/
if (WARN_ON_ONCE(gup_flags & INTERNAL_GUP_FLAGS))