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rds: remove dead code 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
zero-colors
Al Viro 2015-11-15 15:05:32 -05:00
parent 100803a84d
commit be6e4d66f0
2 changed files with 0 additions and 36 deletions
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29
net/rds/page.c
View File

@ -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.
*

7
net/rds/rds.h
View File

@ -781,13 +781,6 @@ static inline int rds_message_verify_checksum(const struct rds_header *hdr)
/* page.c */
int rds_page_remainder_alloc(struct scatterlist *scat, unsigned long bytes,
gfp_t gfp);
int rds_page_copy_user(struct page *page, unsigned long offset,
void __user *ptr, unsigned long bytes,
int to_user);
#define rds_page_copy_to_user(page, offset, ptr, bytes) \
rds_page_copy_user(page, offset, ptr, bytes, 1)
#define rds_page_copy_from_user(page, offset, ptr, bytes) \
rds_page_copy_user(page, offset, ptr, bytes, 0)
void rds_page_exit(void);
/* recv.c */