+ i915-use-find_lock_page-instead-of-find_lock_entry.patch added to -mm tree

+ i915-use-find_lock_page-instead-of-find_lock_entry.patch added to -mm tree

[akpm]

The patch titled
     Subject: i915: use find_lock_page instead of find_lock_entry
has been added to the -mm tree.  Its filename is
     i915-use-find_lock_page-instead-of-find_lock_entry.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/i915-use-find_lock_page-instead-of-find_lock_entry.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/i915-use-find_lock_page-instead-of-find_lock_entry.patch

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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: i915: use find_lock_page instead of find_lock_entry

i915 does not want to see value entries.  Switch it to use
find_lock_page() instead, and remove the export of find_lock_entry().
Move find_lock_entry() and find_get_entry() to mm/internal.h to discourage
any future use.

Link: https://lkml.kernel.org/r/20200910183318.20139-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/gpu/drm/i915/gem/i915_gem_shmem.c |    4 ++--
 include/linux/pagemap.h                   |    2 --
 mm/filemap.c                              |    1 -
 mm/internal.h                             |    3 +++
 4 files changed, 5 insertions(+), 5 deletions(-)

--- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c~i915-use-find_lock_page-instead-of-find_lock_entry
+++ a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
@@ -258,8 +258,8 @@ shmem_writeback(struct drm_i915_gem_obje
 	for (i = 0; i < obj->base.size >> PAGE_SHIFT; i++) {
 		struct page *page;
 
-		page = find_lock_entry(mapping, i);
-		if (!page || xa_is_value(page))
+		page = find_lock_page(mapping, i);
+		if (!page)
 			continue;
 
 		if (!page_mapped(page) && clear_page_dirty_for_io(page)) {
--- a/include/linux/pagemap.h~i915-use-find_lock_page-instead-of-find_lock_entry
+++ a/include/linux/pagemap.h
@@ -384,8 +384,6 @@ static inline struct page *find_subpage(
 	return head + (index & (thp_nr_pages(head) - 1));
 }
 
-struct page *find_get_entry(struct address_space *mapping, pgoff_t offset);
-struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset);
 unsigned find_get_entries(struct address_space *mapping, pgoff_t start,
 			  unsigned int nr_entries, struct page **entries,
 			  pgoff_t *indices);
--- a/mm/filemap.c~i915-use-find_lock_page-instead-of-find_lock_entry
+++ a/mm/filemap.c
@@ -1628,7 +1628,6 @@ repeat:
 	}
 	return page;
 }
-EXPORT_SYMBOL(find_lock_entry);
 
 /**
  * pagecache_get_page - Find and get a reference to a page.
--- a/mm/internal.h~i915-use-find_lock_page-instead-of-find_lock_entry
+++ a/mm/internal.h
@@ -65,6 +65,9 @@ static inline void ra_submit(struct file
 			ra->start, ra->size, ra->async_size);
 }
 
+struct page *find_get_entry(struct address_space *mapping, pgoff_t index);
+struct page *find_lock_entry(struct address_space *mapping, pgoff_t index);
+
 /**
  * page_evictable - test whether a page is evictable
  * @page: the page to test
_

Patches currently in -mm which might be from willy@infradead.org are

mm-debug-do-not-dereference-i_ino-blindly.patch
mm-factor-find_get_incore_page-out-of-mincore_page.patch
mm-use-find_get_incore_page-in-memcontrol.patch
mm-optimise-madvise-willneed.patch
proc-optimise-smaps-for-shmem-entries.patch
i915-use-find_lock_page-instead-of-find_lock_entry.patch
mm-convert-find_get_entry-to-return-the-head-page.patch
mm-shmem-return-head-page-from-find_lock_entry.patch
mm-add-find_lock_head.patch
mm-account-pmd-tables-like-pte-tables.patch
mm-move-pagedoublemap-bit.patch
mm-simplify-pagedoublemap-with-pf_second-policy.patch
xarray-add-xa_get_order.patch
xarray-add-xas_split.patch
xarray-add-xas_split-fix-2.patch
mm-filemap-fix-storing-to-a-thp-shadow-entry.patch
mm-filemap-fix-page-cache-removal-for-arbitrary-sized-thps.patch
mm-memory-remove-page-fault-assumption-of-compound-page-size.patch
mm-page_owner-change-split_page_owner-to-take-a-count.patch
mm-huge_memory-fix-page_trans_huge_mapcount-assumption-of-thp-size.patch
mm-huge_memory-fix-can_split_huge_page-assumption-of-thp-size.patch
mm-rmap-fix-assumptions-of-thp-size.patch
mm-truncate-fix-truncation-for-pages-of-arbitrary-size.patch
mm-page-writeback-support-tail-pages-in-wait_for_stable_page.patch
mm-vmscan-allow-arbitrary-sized-pages-to-be-paged-out.patch
mm-readahead-add-define_readahead.patch
mm-readahead-make-page_cache_ra_unbounded-take-a-readahead_control.patch
mm-readahead-make-do_page_cache_ra-take-a-readahead_control.patch
mm-readahead-add-page_cache_sync_ra-and-page_cache_async_ra.patch
harden-autofs-ioctl-table.patch