xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

afs: Make afs_fs_fetch_data() take a list of pages

Browse Source 
Make afs_fs_fetch_data() take a list of pages for bulk data transfer.  This
will allow afs_readpages() to be made more efficient.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2017-01-05 10:38:34 +00:00
parent c1878f7a89
commit 196ee9cd2d
5 changed files with 145 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
fs/afs/write.c
View File

@@ -86,19 +86,30 @@ void afs_put_writeback(struct afs_writeback *wb)
static int afs_fill_page(struct afs_vnode *vnode, struct key *key,
loff_t pos, struct page *page)
{
struct afs_read *req;
loff_t i_size;
int ret;
int len;
_enter(",,%llu", (unsigned long long)pos);
req = kzalloc(sizeof(struct afs_read) + sizeof(struct page *),
GFP_KERNEL);
if (!req)
return -ENOMEM;
atomic_set(&req->usage, 1);
req->pos = pos;
req->nr_pages = 1;
req->pages[0] = page;
i_size = i_size_read(&vnode->vfs_inode);
if (pos + PAGE_SIZE > i_size)
len = i_size - pos;
req->len = i_size - pos;
else
len = PAGE_SIZE;
req->len = PAGE_SIZE;
ret = afs_vnode_fetch_data(vnode, key, pos, len, page);
ret = afs_vnode_fetch_data(vnode, key, req);
afs_put_read(req);
if (ret < 0) {
if (ret == -ENOENT) {
_debug("got NOENT from server"