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authorJan Kara <jack@suse.cz>2017-11-15 17:35:12 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 18:21:04 -0800
commit93d3b7140ad379885849ad2674b4290c9e8273da (patch)
tree1f402ff4063c564273d5940a05641e5a9720ab49 /include/linux/pagevec.h
parent2b9775ae422fa46b4aee2bb2a8d2184a5a3b90e0 (diff)
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mm: add variant of pagevec_lookup_range_tag() taking number of pages
Currently pagevec_lookup_range_tag() takes number of pages to look up but most users don't need this. Create a new function pagevec_lookup_range_nr_tag() that takes maximum number of pages to lookup for Ceph which wants this functionality so that we can drop nr_pages argument from pagevec_lookup_range_tag(). Link: http://lkml.kernel.org/r/20171009151359.31984-13-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/pagevec.h')
-rw-r--r--include/linux/pagevec.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index afc718f586f8..87a2dfd62f5e 100644
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -41,6 +41,9 @@ static inline unsigned pagevec_lookup(struct pagevec *pvec,
unsigned pagevec_lookup_range_tag(struct pagevec *pvec,
struct address_space *mapping, pgoff_t *index, pgoff_t end,
int tag, unsigned nr_pages);
+unsigned pagevec_lookup_range_nr_tag(struct pagevec *pvec,
+ struct address_space *mapping, pgoff_t *index, pgoff_t end,
+ int tag, unsigned max_pages);
static inline unsigned pagevec_lookup_tag(struct pagevec *pvec,
struct address_space *mapping, pgoff_t *index, int tag,
unsigned nr_pages)