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authorJohn Hubbard <jhubbard@nvidia.com>2022-03-23 00:39:43 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-23 01:57:01 +0300
commitad6c441266dcd50be080a47e1178a1b15369923c (patch)
tree95039064437b6713e310db0993b8fdd6bc63fe6c /mm/gup.c
parent65462462ffb28fddf13d46c628c4fc55878ab397 (diff)
downloadlinux-ad6c441266dcd50be080a47e1178a1b15369923c.tar.xz
mm/gup: remove unused pin_user_pages_locked()
This routine was used for a short while, but then the calling code was refactored and the only caller was removed. Link: https://lkml.kernel.org/r/20220204020010.68930-4-jhubbard@nvidia.com Signed-off-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/gup.c')
-rw-r--r--mm/gup.c29
1 files changed, 0 insertions, 29 deletions
diff --git a/mm/gup.c b/mm/gup.c
index 43ad2bc6ca51..f8faa646f208 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -3127,32 +3127,3 @@ long pin_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
return get_user_pages_unlocked(start, nr_pages, pages, gup_flags);
}
EXPORT_SYMBOL(pin_user_pages_unlocked);
-
-/*
- * pin_user_pages_locked() is the FOLL_PIN variant of get_user_pages_locked().
- * Behavior is the same, except that this one sets FOLL_PIN and rejects
- * FOLL_GET.
- */
-long pin_user_pages_locked(unsigned long start, unsigned long nr_pages,
- unsigned int gup_flags, struct page **pages,
- int *locked)
-{
- /*
- * FIXME: Current FOLL_LONGTERM behavior is incompatible with
- * FAULT_FLAG_ALLOW_RETRY because of the FS DAX check requirement on
- * vmas. As there are no users of this flag in this call we simply
- * disallow this option for now.
- */
- if (WARN_ON_ONCE(gup_flags & FOLL_LONGTERM))
- return -EINVAL;
-
- /* FOLL_GET and FOLL_PIN are mutually exclusive. */
- if (WARN_ON_ONCE(gup_flags & FOLL_GET))
- return -EINVAL;
-
- gup_flags |= FOLL_PIN;
- return __get_user_pages_locked(current->mm, start, nr_pages,
- pages, NULL, locked,
- gup_flags | FOLL_TOUCH);
-}
-EXPORT_SYMBOL(pin_user_pages_locked);