static int nilfs_commit_write(struct file *file, struct page *page, unsigned from, unsigned to) { struct inode *inode = page->mapping->host; unsigned nr_dirty = nilfs_page_count_clean_buffers(page, from, to); int err; generic_commit_write(file, page, from, to); nilfs_set_file_dirty(NILFS_SB(inode->i_sb), inode, nr_dirty); err = nilfs_transaction_commit(inode->i_sb); return err; }
static int gfs2_commit_write(struct file *file, struct page *page, unsigned from, unsigned to) { struct inode *inode = page->mapping->host; struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_sbd *sdp = GFS2_SB(inode); int error = -EOPNOTSUPP; struct buffer_head *dibh; struct gfs2_alloc *al = &ip->i_alloc; struct gfs2_dinode *di; if (gfs2_assert_withdraw(sdp, gfs2_glock_is_locked_by_me(ip->i_gl))) goto fail_nounlock; error = gfs2_meta_inode_buffer(ip, &dibh); if (error) goto fail_endtrans; gfs2_trans_add_bh(ip->i_gl, dibh, 1); di = (struct gfs2_dinode *)dibh->b_data; if (gfs2_is_stuffed(ip)) { u64 file_size; void *kaddr; file_size = ((u64)page->index << PAGE_CACHE_SHIFT) + to; kaddr = kmap_atomic(page, KM_USER0); memcpy(dibh->b_data + sizeof(struct gfs2_dinode) + from, kaddr + from, to - from); kunmap_atomic(kaddr, KM_USER0); SetPageUptodate(page); if (inode->i_size < file_size) { i_size_write(inode, file_size); mark_inode_dirty(inode); } } else { if (sdp->sd_args.ar_data == GFS2_DATA_ORDERED || gfs2_is_jdata(ip)) gfs2_page_add_databufs(ip, page, from, to); error = generic_commit_write(file, page, from, to); if (error) goto fail; } if (ip->i_di.di_size < inode->i_size) { ip->i_di.di_size = inode->i_size; di->di_size = cpu_to_be64(inode->i_size); } brelse(dibh); gfs2_trans_end(sdp); if (al->al_requested) { gfs2_inplace_release(ip); gfs2_quota_unlock(ip); gfs2_alloc_put(ip); } gfs2_glock_dq_m(1, &ip->i_gh); gfs2_holder_uninit(&ip->i_gh); return 0; fail: brelse(dibh); fail_endtrans: gfs2_trans_end(sdp); if (al->al_requested) { gfs2_inplace_release(ip); gfs2_quota_unlock(ip); gfs2_alloc_put(ip); } gfs2_glock_dq_m(1, &ip->i_gh); gfs2_holder_uninit(&ip->i_gh); fail_nounlock: ClearPageUptodate(page); return error; }