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authorAl Viro <viro@zeniv.linux.org.uk>2015-11-15 15:05:32 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2016-12-26 21:35:39 -0500
commitbe6e4d66f01335827d734ee9bde79862ed8a235b (patch)
tree6764ef81c6ae3c1506ebad9d852c1b9e79e18a1c /net/rds/page.c
parent100803a84d3cb84bd3ee36e8ec4274019ad667ac (diff)
rds: remove dead code
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/rds/page.c')
-rw-r--r--net/rds/page.c29
1 files changed, 0 insertions, 29 deletions
diff --git a/net/rds/page.c b/net/rds/page.c
index e2b5a5832d3d..7cc57e098ddb 100644
--- a/net/rds/page.c
+++ b/net/rds/page.c
@@ -45,35 +45,6 @@ struct rds_page_remainder {
static
DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_page_remainder, rds_page_remainders);
-/*
- * returns 0 on success or -errno on failure.
- *
- * We don't have to worry about flush_dcache_page() as this only works
- * with private pages. If, say, we were to do directed receive to pinned
- * user pages we'd have to worry more about cache coherence. (Though
- * the flush_dcache_page() in get_user_pages() would probably be enough).
- */
-int rds_page_copy_user(struct page *page, unsigned long offset,
- void __user *ptr, unsigned long bytes,
- int to_user)
-{
- unsigned long ret;
- void *addr;
-
- addr = kmap(page);
- if (to_user) {
- rds_stats_add(s_copy_to_user, bytes);
- ret = copy_to_user(ptr, addr + offset, bytes);
- } else {
- rds_stats_add(s_copy_from_user, bytes);
- ret = copy_from_user(addr + offset, ptr, bytes);
- }
- kunmap(page);
-
- return ret ? -EFAULT : 0;
-}
-EXPORT_SYMBOL_GPL(rds_page_copy_user);
-
/**
* rds_page_remainder_alloc - build up regions of a message.
*