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page cache; Convert find_get_pages_range_tag to XArray

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The 'end' parameter of the xas_for_each iterator avoids a useless
iteration at the end of the range.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
This commit is contained in:
Matthew Wilcox
2018-05-16 18:12:54 -04:00
parent 3ece58a270
commit a6906972fe
2 changed files with 28 additions and 44 deletions
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4
include/linux/pagemap.h
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@@ -363,10 +363,10 @@ static inline unsigned find_get_pages(struct address_space *mapping,
unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start,
unsigned int nr_pages, struct page **pages);
unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index,
pgoff_t end, int tag, unsigned int nr_pages,
pgoff_t end, xa_mark_t tag, unsigned int nr_pages,
struct page **pages);
static inline unsigned find_get_pages_tag(struct address_space *mapping,
pgoff_t *index, int tag, unsigned int nr_pages,
pgoff_t *index, xa_mark_t tag, unsigned int nr_pages,
struct page **pages)
{
return find_get_pages_range_tag(mapping, index, (pgoff_t)-1, tag,