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mm: remove FGP_ENTRY

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FGP_ENTRY is unused now, so remove it.

Link: https://lkml.kernel.org/r/20230307143410.28031-7-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2023-03-07 15:34:09 +01:00 committed by Andrew Morton
parent aaeb94eb86
commit 48c9d11375
3 changed files with 4 additions and 10 deletions
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3
include/linux/pagemap.h
View File

@ -504,8 +504,7 @@ pgoff_t page_cache_prev_miss(struct address_space *mapping,
#define FGP_NOFS 0x00000010
#define FGP_NOWAIT 0x00000020
#define FGP_FOR_MMAP 0x00000040
#define FGP_ENTRY 0x00000080
#define FGP_STABLE 0x00000100
#define FGP_STABLE 0x00000080
void *filemap_get_entry(struct address_space *mapping, pgoff_t index);
struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index,

7
mm/filemap.c
View File

@ -1891,8 +1891,6 @@ out:
*
* * %FGP_ACCESSED - The folio will be marked accessed.
* * %FGP_LOCK - The folio is returned locked.
* * %FGP_ENTRY - If there is a shadow / swap / DAX entry, return it
* instead of allocating a new folio to replace it.
* * %FGP_CREAT - If no page is present then a new page is allocated using
* @gfp and added to the page cache and the VM's LRU list.
* The page is returned locked and with an increased refcount.
@ -1918,11 +1916,8 @@ struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index,
repeat:
folio = filemap_get_entry(mapping, index);
if (xa_is_value(folio)) {
if (fgp_flags & FGP_ENTRY)
return folio;
if (xa_is_value(folio))
folio = NULL;
}
if (!folio)
goto no_page;

4
mm/folio-compat.c
View File

@ -97,8 +97,8 @@ struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
struct folio *folio;
folio = __filemap_get_folio(mapping, index, fgp_flags, gfp);
if (!folio || xa_is_value(folio))
return &folio->page;
if (!folio)
return NULL;
return folio_file_page(folio, index);
}
EXPORT_SYMBOL(pagecache_get_page);