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libceph: Remove unused pagevec functions

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ceph_copy_user_to_page_vector() has been unused since 2013's commit
e8344e6689 ("ceph: Implement writev/pwritev for sync operation.")

ceph_copy_to_page_vector() has been unused since 2012's commit
913d2fdcf6 ("rbd: always pass ops array to rbd_req_sync_op()")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Dr. David Alan Gilbert 2024-10-06 02:19:53 +01:00 committed by Ilya Dryomov
parent 03854920c3
commit ee1eb8ccaa
2 changed files with 0 additions and 58 deletions
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6
include/linux/ceph/libceph.h
View File

@ -317,12 +317,6 @@ extern void ceph_release_page_vector(struct page **pages, int num_pages);
extern void ceph_put_page_vector(struct page **pages, int num_pages,
bool dirty);
extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
extern int ceph_copy_user_to_page_vector(struct page **pages,
const void __user *data,
loff_t off, size_t len);
extern void ceph_copy_to_page_vector(struct page **pages,
const void *data,
loff_t off, size_t len);
extern void ceph_copy_from_page_vector(struct page **pages,
void *data,
loff_t off, size_t len);

52
net/ceph/pagevec.c
View File

@ -55,58 +55,6 @@ struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags)
}
EXPORT_SYMBOL(ceph_alloc_page_vector);
/*
* copy user data into a page vector
*/
int ceph_copy_user_to_page_vector(struct page **pages,
const void __user *data,
loff_t off, size_t len)
{
int i = 0;
int po = off & ~PAGE_MASK;
int left = len;
int l, bad;
while (left > 0) {
l = min_t(int, PAGE_SIZE-po, left);
bad = copy_from_user(page_address(pages[i]) + po, data, l);
if (bad == l)
return -EFAULT;
data += l - bad;
left -= l - bad;
po += l - bad;
if (po == PAGE_SIZE) {
po = 0;
i++;
}
}
return len;
}
EXPORT_SYMBOL(ceph_copy_user_to_page_vector);
void ceph_copy_to_page_vector(struct page **pages,
const void *data,
loff_t off, size_t len)
{
int i = 0;
size_t po = off & ~PAGE_MASK;
size_t left = len;
while (left > 0) {
size_t l = min_t(size_t, PAGE_SIZE-po, left);
memcpy(page_address(pages[i]) + po, data, l);
data += l;
left -= l;
po += l;
if (po == PAGE_SIZE) {
po = 0;
i++;
}
}
}
EXPORT_SYMBOL(ceph_copy_to_page_vector);
void ceph_copy_from_page_vector(struct page **pages,
void *data,
loff_t off, size_t len)