fuse: ioctl cleanup
Get rid of unnecessary page_address()-es.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Tejun Heo <tj@kernel.org>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 8b984a2..ca3b6bb 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1740,7 +1740,7 @@
struct fuse_ioctl_out outarg;
struct fuse_req *req = NULL;
struct page **pages = NULL;
- struct page *iov_page = NULL;
+ struct iovec *iov_page = NULL;
struct iovec *in_iov = NULL, *out_iov = NULL;
unsigned int in_iovs = 0, out_iovs = 0, num_pages = 0, max_pages;
size_t in_size, out_size, transferred;
@@ -1751,7 +1751,7 @@
err = -ENOMEM;
pages = kzalloc(sizeof(pages[0]) * FUSE_MAX_PAGES_PER_REQ, GFP_KERNEL);
- iov_page = alloc_page(GFP_KERNEL);
+ iov_page = (struct iovec *) __get_free_page(GFP_KERNEL);
if (!pages || !iov_page)
goto out;
@@ -1760,7 +1760,7 @@
* RETRY from server is not allowed.
*/
if (!(flags & FUSE_IOCTL_UNRESTRICTED)) {
- struct iovec *iov = page_address(iov_page);
+ struct iovec *iov = iov_page;
iov->iov_base = (void __user *)arg;
iov->iov_len = _IOC_SIZE(cmd);
@@ -1841,7 +1841,7 @@
/* did it ask for retry? */
if (outarg.flags & FUSE_IOCTL_RETRY) {
- char *vaddr;
+ void *vaddr;
/* no retry if in restricted mode */
err = -EIO;
@@ -1862,14 +1862,14 @@
goto out;
vaddr = kmap_atomic(pages[0], KM_USER0);
- err = fuse_copy_ioctl_iovec(page_address(iov_page), vaddr,
+ err = fuse_copy_ioctl_iovec(iov_page, vaddr,
transferred, in_iovs + out_iovs,
(flags & FUSE_IOCTL_COMPAT) != 0);
kunmap_atomic(vaddr, KM_USER0);
if (err)
goto out;
- in_iov = page_address(iov_page);
+ in_iov = iov_page;
out_iov = in_iov + in_iovs;
err = fuse_verify_ioctl_iov(in_iov, in_iovs);
@@ -1891,8 +1891,7 @@
out:
if (req)
fuse_put_request(fc, req);
- if (iov_page)
- __free_page(iov_page);
+ free_page((unsigned long) iov_page);
while (num_pages)
__free_page(pages[--num_pages]);
kfree(pages);