bsd/vfs/vfs_cluster.c

162 static int cluster_io(vnode_t vp, upl_t upl, vm_offset_t upl_offset, off_t f_offset, int non_rounded_size,
191 static int 	cluster_read_prefetch(vnode_t vp, off_t f_offset, u_int size, off_t filesize, int (*callback)(buf_t, void *), void *callback_arg, int bflag);
481 cluster_io_present_in_BC(vnode_t vp, off_t f_offset)
488 		if (VNOP_BLOCKMAP(vp, f_offset, PAGE_SIZE, &blkno, &io_size, NULL, VNODE_READ, NULL))
911 cluster_io(vnode_t vp, upl_t upl, vm_offset_t upl_offset, off_t f_offset, int non_rounded_size,
979 	KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 22)) | DBG_FUNC_START, (int)f_offset, size, upl_offset, flags, 0);
1094 		if ((error = VNOP_BLOCKMAP(vp, f_offset, io_size, &blkno, &io_size_tmp, NULL, bmap_flags, NULL)))
1106 			     (int)f_offset, (int)(blkno>>32), (int)blkno, io_size, 0);
1228 			if (vnode_pageout(vp, upl, trunc_page(upl_offset), trunc_page_64(f_offset), PAGE_SIZE, pageout_flags, NULL) != PAGER_SUCCESS) {
1231 			e_offset = round_page_64(f_offset + 1);
1232 			io_size = e_offset - f_offset;
1234 			f_offset   += io_size;
1265 		lblkno = (daddr64_t)(f_offset / PAGE_SIZE_64);
1365 			f_offset   += io_size;
1510 		f_offset   += io_size;
1664 	KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 22)) | DBG_FUNC_END, (int)f_offset, size, upl_offset, retval, 0);
1689 cluster_read_prefetch(vnode_t vp, off_t f_offset, u_int size, off_t filesize, int (*callback)(buf_t, void *), void *callback_arg, int bflag)
1694 		     (int)f_offset, size, (int)filesize, 0, 0);
1696 	if (f_offset >= filesize) {
1698 			     (int)f_offset, 0, 0, 0, 0);
1701         if ((off_t)size > (filesize - f_offset))
1702                 size = filesize - f_offset;
1705 	advisory_read_ext(vp, filesize, f_offset, size, callback, callback_arg, bflag);
1708 		     (int)f_offset + size, pages_in_prefetch, 0, 1, 0);
1720 	off_t		f_offset;
1761 	f_offset = (off_t)(r_addr * PAGE_SIZE_64);
1765 	ubc_range_op(vp, f_offset, f_offset + PAGE_SIZE_64, UPL_ROP_PRESENT, &size_of_prefetch);
1772 	if (f_offset < filesize) {
1785 		size_of_prefetch = cluster_read_prefetch(vp, f_offset, rap->cl_ralen * PAGE_SIZE, filesize, callback, callback_arg, bflag);
1796 cluster_pageout(vnode_t vp, upl_t upl, upl_offset_t upl_offset, off_t f_offset,
1799         return cluster_pageout_ext(vp, upl, upl_offset, f_offset, size, filesize, flags, NULL, NULL);
1805 cluster_pageout_ext(vnode_t vp, upl_t upl, upl_offset_t upl_offset, off_t f_offset,
1826 		     (int)f_offset, size, (int)filesize, local_flags, 0);
1847 	if (f_offset < 0 || f_offset >= filesize ||
1848 	   (f_offset & PAGE_MASK_64) || (size & PAGE_MASK)) {
1853 	max_size = filesize - f_offset;
1867 	return (cluster_io(vp, upl, upl_offset, f_offset, io_size,
1873 cluster_pagein(vnode_t vp, upl_t upl, upl_offset_t upl_offset, off_t f_offset,
1876         return cluster_pagein_ext(vp, upl, upl_offset, f_offset, size, filesize, flags, NULL, NULL);
1881 cluster_pagein_ext(vnode_t vp, upl_t upl, upl_offset_t upl_offset, off_t f_offset,
1904 		     (int)f_offset, size, (int)filesize, local_flags, 0);
1912 	if (f_offset < 0 || f_offset >= filesize ||
1913 	   (f_offset & PAGE_MASK_64) || (size & PAGE_MASK) || (upl_offset & PAGE_MASK)) {
1918 	max_size = filesize - f_offset;
1931 	retval = cluster_io(vp, upl, upl_offset, f_offset, io_size,
1948         off_t  f_offset;
1961 	f_offset = ubc_blktooff(bp->b_vp, bp->b_lblkno);
1963         return (cluster_io(bp->b_vp, bp->b_upl, 0, f_offset, bp->b_bcount, flags, bp, (struct clios *)NULL, callback, callback_arg));
4815 advisory_read(vnode_t vp, off_t filesize, off_t f_offset, int resid)
4817         return advisory_read_ext(vp, filesize, f_offset, resid, NULL, NULL, CL_PASSIVE);
4821 advisory_read_ext(vnode_t vp, off_t filesize, off_t f_offset, int resid, int (*callback)(buf_t, void *), void *callback_arg, int bflag)
4860 		     (int)f_offset, resid, (int)filesize, 0, 0);
4862 	while (resid && f_offset < filesize && retval == 0) {
4871 		start_offset = (int)(f_offset & PAGE_MASK_64);
4872 		upl_f_offset = f_offset - (off_t)start_offset;
4873 		max_size     = filesize - f_offset;
4897 		        f_offset += io_size;
4994 		f_offset += io_size;
4999 		     (int)f_offset, resid, retval, 0, 0);
5841         off_t f_offset;
5845 	for (f_offset = 0; f_offset < filesize; f_offset += PAGE_SIZE_64) {
5846 	        if (ubc_page_op(vp, f_offset, 0, NULL, &flags) == KERN_SUCCESS) {