size_t n = min_t(size_t, count,
PAGE_SIZE - offset_in_page(pos));
struct page *page;
- void *addr;
page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT,
NULL);
if (IS_ERR(page))
return PTR_ERR(page);
- addr = kmap_atomic(page);
- memcpy(buf, addr + offset_in_page(pos), n);
- kunmap_atomic(addr);
+ memcpy_from_page(buf, page, offset_in_page(pos), n);
put_page(page);
PAGE_SIZE - offset_in_page(pos));
struct page *page;
void *fsdata;
- void *addr;
int res;
res = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0,
if (res)
return res;
- addr = kmap_atomic(page);
- memcpy(addr + offset_in_page(pos), buf, n);
- kunmap_atomic(addr);
+ memcpy_to_page(page, offset_in_page(pos), buf, n);
res = pagecache_write_end(NULL, inode->i_mapping, pos, n, n,
page, fsdata);
pgoff_t index,
unsigned long num_ra_pages)
{
- DEFINE_READAHEAD(ractl, NULL, inode->i_mapping, index);
+ DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, index);
struct page *page;
index += ext4_verity_metadata_pos(inode) >> PAGE_SHIFT;