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authorChristoph Hellwig <hch@lst.de>2019-05-01 16:40:32 -0400
committerIlya Dryomov <idryomov@gmail.com>2019-07-08 14:01:40 +0200
commit97a385e558292ba0851906783642239865670a5f (patch)
treebb736335b7c5e39f975a213d2ce0413f4fb28138 /net/ceph/pagevec.c
parent0ecfebd2b52404ae0c54a878c872bb93363ada36 (diff)
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libceph: remove ceph_get_direct_page_vector()
This function is entirely unused. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph/pagevec.c')
-rw-r--r--net/ceph/pagevec.c33
1 files changed, 0 insertions, 33 deletions
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 74cafc0142ea..64305e7056a1 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -10,39 +10,6 @@
#include <linux/ceph/libceph.h>
-/*
- * build a vector of user pages
- */
-struct page **ceph_get_direct_page_vector(const void __user *data,
- int num_pages, bool write_page)
-{
- struct page **pages;
- int got = 0;
- int rc = 0;
-
- pages = kmalloc_array(num_pages, sizeof(*pages), GFP_NOFS);
- if (!pages)
- return ERR_PTR(-ENOMEM);
-
- while (got < num_pages) {
- rc = get_user_pages_fast(
- (unsigned long)data + ((unsigned long)got * PAGE_SIZE),
- num_pages - got, write_page ? FOLL_WRITE : 0, pages + got);
- if (rc < 0)
- break;
- BUG_ON(rc == 0);
- got += rc;
- }
- if (rc < 0)
- goto fail;
- return pages;
-
-fail:
- ceph_put_page_vector(pages, got, false);
- return ERR_PTR(rc);
-}
-EXPORT_SYMBOL(ceph_get_direct_page_vector);
-
void ceph_put_page_vector(struct page **pages, int num_pages, bool dirty)
{
int i;