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mm: delete unused get_kernel_page()

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get_kernel_page() was added in 2012 by [1].  It was used for a while for
NFS, but then in 2014, a refactoring [2] removed all callers, and it has
apparently not been used since.

Remove get_kernel_page() because it has no callers.

[1] commit 18022c5d86 ("mm: add get_kernel_page[s] for pinning of
    kernel addresses for I/O")
[2] commit 91f79c43d1 ("new helper: iov_iter_get_pages_alloc()")

Link: https://lkml.kernel.org/r/20210729221847.1165665-1-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Eric Paris <eparis@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: Neil Brown <neilb@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Xiaotian Feng <dfeng@redhat.com>
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
John Hubbard
2021-09-02 14:54:00 -07:00
committed by Linus Torvalds
parent 51cc3a6620
commit 3969b1a654
2 changed files with 0 additions and 23 deletions
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1
include/linux/mm.h
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@@ -1839,7 +1839,6 @@ int __account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc,
struct kvec;
int get_kernel_pages(const struct kvec *iov, int nr_pages, int write,
struct page **pages);
int get_kernel_page(unsigned long start, int write, struct page **pages);
struct page *get_dump_page(unsigned long addr);
extern int try_to_release_page(struct page * page, gfp_t gfp_mask);