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authorAl Viro <viro@zeniv.linux.org.uk>2014-04-04 06:31:22 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-05-07 01:39:42 +0400
commit2b777c9dd9ebbb2f8b6818d454cc5e6d7c1e3c8b (patch)
treeaceac852de465a0205a7073496126925620ea7cf /net/ceph
parentf0d1bec9d58d4c038d0ac958c9af82be6eb18045 (diff)
downloadlinux-2b777c9dd9ebbb2f8b6818d454cc5e6d7c1e3c8b.tar.xz
ceph_sync_read: stop poking into iov_iter guts
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/pagevec.c35
1 files changed, 4 insertions, 31 deletions
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 815a2249cfa9..555013034f7a 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -53,7 +53,10 @@ void ceph_put_page_vector(struct page **pages, int num_pages, bool dirty)
set_page_dirty_lock(pages[i]);
put_page(pages[i]);
}
- kfree(pages);
+ if (is_vmalloc_addr(pages))
+ vfree(pages);
+ else
+ kfree(pages);
}
EXPORT_SYMBOL(ceph_put_page_vector);
@@ -165,36 +168,6 @@ void ceph_copy_from_page_vector(struct page **pages,
EXPORT_SYMBOL(ceph_copy_from_page_vector);
/*
- * copy user data from a page vector into a user pointer
- */
-int ceph_copy_page_vector_to_user(struct page **pages,
- void __user *data,
- loff_t off, size_t len)
-{
- int i = 0;
- int po = off & ~PAGE_CACHE_MASK;
- int left = len;
- int l, bad;
-
- while (left > 0) {
- l = min_t(int, left, PAGE_CACHE_SIZE-po);
- bad = copy_to_user(data, page_address(pages[i]) + po, l);
- if (bad == l)
- return -EFAULT;
- data += l - bad;
- left -= l - bad;
- if (po) {
- po += l - bad;
- if (po == PAGE_CACHE_SIZE)
- po = 0;
- }
- i++;
- }
- return len;
-}
-EXPORT_SYMBOL(ceph_copy_page_vector_to_user);
-
-/*
* Zero an extent within a page vector. Offset is relative to the
* start of the first page.
*/