fs/ntfs3/fslog.c

30 	__le32 page_size;     // 0x14: Log page size used for this log file.
431 	u32 page_size = le32_to_cpu(rhdr->page_size);
435 	if (sys_page < SECTOR_SIZE || page_size < SECTOR_SIZE ||
436 	    sys_page & (sys_page - 1) || page_size & (page_size - 1)) {
655 static inline u32 norm_file_page(u32 page_size, u32 *l_size, bool use_default)
658 		page_size = DefaultLogPageSize;
661 	*l_size &= ~(page_size - 1);
664 	if (*l_size < (MinLogRecordPages + 2) * page_size)
667 	return page_size;
1005 	u32 page_size;
1006 	u32 page_mask; // page_size - 1
1070 	off = (off & ~log->sys_page_mask) + log->page_size;
1109 			     log->page_size) +
1129 	u32 bytes = log->page_size - page_off;
1140 		to_free = kmalloc(log->page_size, GFP_NOFS);
1149 			       log->page_size, NULL);
1295 	log->sys_page_size = log->page_size;
1298 	log->clst_per_page = log->page_size >> log->ni->mi.sbi->cluster_bits;
1302 	log->first_page = major_ver >= 2 ? 0x22 * log->page_size :
1303 					   4 * log->page_size;
1336 			sizeof(short) * ((log->page_size >> SECTOR_SHIFT) + 1),
1338 	log->data_size = log->page_size - log->data_off;
1408 	u32 tail = log->page_size - page_off;
1524 				log->next_page + log->page_size :
1610 		final_off = 0x02 * log->page_size;
1611 		second_off = 0x12 * log->page_size;
1614 		page_bufs = kmalloc(log->page_size * 0x10, GFP_NOFS);
1618 		second_off = log->first_page - log->page_size;
1619 		final_off = second_off - log->page_size;
1705 			memmove(page_bufs, best_page, log->page_size);
1714 		   saved_off + log->page_size == this_off &&
1721 		saved_off += log->page_size;
1724 		memmove(Add2Ptr(page_bufs, tails * log->page_size), best_page,
1725 			log->page_size);
1754 	final_off += log->page_size;
1755 	second_off += log->page_size;
1845 		    log->page_size -
1983 		    log->page_size -
2025 		if (log->page_size -
2157 			tails -= (page_off1 - page_off) / log->page_size;
2169 				page = kmalloc(log->page_size, GFP_NOFS);
2180 			memcpy(page, tmp_page, log->page_size);
2190 			ntfs_fix_pre_write(&page->rhdr, log->page_size);
2194 						log->page_size, 0);
2200 				second_off += log->page_size;
2204 			tmp_page = Add2Ptr(tmp_page, log->page_size);
2246 		u32 tail = log->page_size - off;
2419 		if (page_off + len + log->record_header_len > log->page_size)
3765 	log->page_size = norm_file_page(PAGE_SIZE, &log->l_size, true);
3767 	log->page_size = norm_file_page(PAGE_SIZE, &log->l_size, false);
3769 	if (!log->page_size) {
3774 	log->one_page_buf = kmalloc(log->page_size, GFP_NOFS);
3780 	log->page_mask = log->page_size - 1;
3781 	log->page_bits = blksize_bits(log->page_size);
3831 	    log->page_size != log->rst_info.vbo) {
3835 		if (!read_log_page(log, log->page_size, &sp, &usa_error) &&
3905 	if (log->page_size != t32) {
3907 		log->page_size = norm_file_page(t32, &log->l_size,
3911 	if (log->page_size != t32 ||
3912 	    log->page_size != le32_to_cpu(log->rst_info.r_page->page_size)) {
3937 	log->data_size = log->page_size - log->data_off;
3961 	tail = log->page_size - (off & log->page_mask) - 1;
4201 	if (sbi->cluster_size <= log->page_size)
5096 	rh = kzalloc(log->page_size, GFP_NOFS);
5104 	t16 = (log->page_size >> SECTOR_SHIFT) + 1;
5106 	rh->sys_page_size = cpu_to_le32(log->page_size);
5107 	rh->page_size = cpu_to_le32(log->page_size);
5124 	ntfs_fix_pre_write(&rh->rhdr, log->page_size);
5126 	err = ntfs_sb_write_run(sbi, &ni->file.run, 0, rh, log->page_size, 0);
5128 		err = ntfs_sb_write_run(sbi, &log->ni->file.run, log->page_size,
5129 					rh, log->page_size, 0);