From: Miklos Szeredi <mszeredi@suse.cz>
Date: Wed, 27 Oct 2010 22:34:46 +0000 (-0700)
Subject: fuse: use release_pages()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0be8557bcd34887d5a42c01c5659cab5ecf99f13;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

fuse: use release_pages()

Replace iterated page_cache_release() with release_pages(), which is
faster and shorter.

Needs release_pages() to be exported to modules.

Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index b98664275f02..6e07696308dc 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1334,12 +1334,7 @@ out_finish:
 
 static void fuse_retrieve_end(struct fuse_conn *fc, struct fuse_req *req)
 {
-	int i;
-
-	for (i = 0; i < req->num_pages; i++) {
-		struct page *page = req->pages[i];
-		page_cache_release(page);
-	}
+	release_pages(req->pages, req->num_pages, 0);
 }
 
 static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
diff --git a/mm/swap.c b/mm/swap.c
index 3ce7bc373a52..3f4854205b16 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -378,6 +378,7 @@ void release_pages(struct page **pages, int nr, int cold)
 
 	pagevec_free(&pages_to_free);
 }
+EXPORT_SYMBOL(release_pages);
 
 /*
  * The pages which we're about to release may be in the deferred lru-addition