static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
{
struct buffer_head *dibh;
+ u64 dsize = i_size_read(&ip->i_inode);
void *kaddr;
int error;
return error;
kaddr = kmap_atomic(page, KM_USER0);
- memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
- ip->i_disksize);
- memset(kaddr + ip->i_disksize, 0, PAGE_CACHE_SIZE - ip->i_disksize);
+ if (dsize > (dibh->b_size - sizeof(struct gfs2_dinode)))
+ dsize = (dibh->b_size - sizeof(struct gfs2_dinode));
+ memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize);
+ memset(kaddr + dsize, 0, PAGE_CACHE_SIZE - dsize);
kunmap_atomic(kaddr, KM_USER0);
flush_dcache_page(page);
brelse(dibh);
if (!PageUptodate(page)) {
void *kaddr = kmap(page);
+ u64 dsize = i_size_read(inode);
+
+ if (dsize > (dibh->b_size - sizeof(struct gfs2_dinode)))
+ dsize = dibh->b_size - sizeof(struct gfs2_dinode);
- memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
- ip->i_disksize);
- memset(kaddr + ip->i_disksize, 0,
- PAGE_CACHE_SIZE - ip->i_disksize);
+ memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize);
+ memset(kaddr + dsize, 0, PAGE_CACHE_SIZE - dsize);
kunmap(page);
SetPageUptodate(page);
goto out;
if (gfs2_is_stuffed(ip)) {
- ip->i_disksize = size;
+ u64 dsize = size + sizeof(struct gfs2_inode);
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
- gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode) + size);
+ if (dsize > dibh->b_size)
+ dsize = dibh->b_size;
+ gfs2_buffer_clear_tail(dibh, dsize);
error = 1;
-
} else {
if (size & (u64)(sdp->sd_sb.sb_bsize - 1))
error = gfs2_block_truncate_page(ip->i_inode.i_mapping);