Lines Matching +full:ip +full:- +full:blocks
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
43 static int punch_hole(struct gfs2_inode *ip, u64 offset, u64 length);
46 * gfs2_unstuffer_page - unstuff a stuffed inode into a block cached by a page
47 * @ip: the inode
55 static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh, in gfs2_unstuffer_page() argument
58 struct inode *inode = &ip->i_inode; in gfs2_unstuffer_page()
61 if (!page || page->index) { in gfs2_unstuffer_page()
62 page = find_or_create_page(inode->i_mapping, 0, GFP_NOFS); in gfs2_unstuffer_page()
64 return -ENOMEM; in gfs2_unstuffer_page()
72 if (dsize > gfs2_max_stuffed_size(ip)) in gfs2_unstuffer_page()
73 dsize = gfs2_max_stuffed_size(ip); in gfs2_unstuffer_page()
75 memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize); in gfs2_unstuffer_page()
76 memset(kaddr + dsize, 0, PAGE_SIZE - dsize); in gfs2_unstuffer_page()
82 if (gfs2_is_jdata(ip)) { in gfs2_unstuffer_page()
86 create_empty_buffers(page, BIT(inode->i_blkbits), in gfs2_unstuffer_page()
91 map_bh(bh, inode->i_sb, block); in gfs2_unstuffer_page()
94 gfs2_trans_add_data(ip->i_gl, bh); in gfs2_unstuffer_page()
97 gfs2_ordered_add_inode(ip); in gfs2_unstuffer_page()
109 * gfs2_unstuff_dinode - Unstuff a dinode when the data has grown too big
110 * @ip: The GFS2 inode to unstuff
119 int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page) in gfs2_unstuff_dinode() argument
124 int isdir = gfs2_is_dir(ip); in gfs2_unstuff_dinode()
127 down_write(&ip->i_rw_mutex); in gfs2_unstuff_dinode()
129 error = gfs2_meta_inode_buffer(ip, &dibh); in gfs2_unstuff_dinode()
133 if (i_size_read(&ip->i_inode)) { in gfs2_unstuff_dinode()
138 error = gfs2_alloc_blocks(ip, &block, &n, 0, NULL); in gfs2_unstuff_dinode()
142 gfs2_trans_remove_revoke(GFS2_SB(&ip->i_inode), block, 1); in gfs2_unstuff_dinode()
143 error = gfs2_dir_get_new_buffer(ip, block, &bh); in gfs2_unstuff_dinode()
150 error = gfs2_unstuffer_page(ip, dibh, block, page); in gfs2_unstuff_dinode()
158 gfs2_trans_add_meta(ip->i_gl, dibh); in gfs2_unstuff_dinode()
159 di = (struct gfs2_dinode *)dibh->b_data; in gfs2_unstuff_dinode()
162 if (i_size_read(&ip->i_inode)) { in gfs2_unstuff_dinode()
164 gfs2_add_inode_blocks(&ip->i_inode, 1); in gfs2_unstuff_dinode()
165 di->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode)); in gfs2_unstuff_dinode()
168 ip->i_height = 1; in gfs2_unstuff_dinode()
169 di->di_height = cpu_to_be16(1); in gfs2_unstuff_dinode()
174 up_write(&ip->i_rw_mutex); in gfs2_unstuff_dinode()
180 * find_metapath - Find path through the metadata tree
184 * @height: The pre-calculated height of the metadata tree
187 * through the metadata of inode "ip" to get to block "block".
190 * Given: "ip" is a height 3 file, "offset" is 101342453, and this is a
202 * ----------------------------------------
207 * ----------------------------------------
211 * ----------------------------------------
216 * ----------------------------------------
220 * ----------------------------------------
225 * ----------------------------------------
229 * ----------------------------------------
234 * ----------------------------------------
243 mp->mp_fheight = height; in find_metapath()
244 for (i = height; i--;) in find_metapath()
245 mp->mp_list[i] = do_div(block, sdp->sd_inptrs); in find_metapath()
250 if (mp->mp_list[0] == 0) in metapath_branch_start()
256 * metaptr1 - Return the first possible metadata pointer in a metapath buffer
262 struct buffer_head *bh = mp->mp_bh[height]; in metaptr1()
264 return ((__be64 *)(bh->b_data + sizeof(struct gfs2_dinode))); in metaptr1()
265 return ((__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header))); in metaptr1()
269 * metapointer - Return pointer to start of metadata in a buffer
281 return p + mp->mp_list[height]; in metapointer()
286 const struct buffer_head *bh = mp->mp_bh[height]; in metaend()
287 return (const __be64 *)(bh->b_data + bh->b_size); in metaend()
295 for (hgt = 0; hgt < mp->mp_aheight; hgt++) in clone_metapath()
296 get_bh(clone->mp_bh[hgt]); in clone_metapath()
312 rabh->b_end_io = end_buffer_read_sync; in gfs2_metapath_ra()
324 static int __fillup_metapath(struct gfs2_inode *ip, struct metapath *mp, in __fillup_metapath() argument
334 ret = gfs2_meta_indirect_buffer(ip, x + 1, dblock, &mp->mp_bh[x + 1]); in __fillup_metapath()
338 mp->mp_aheight = x + 1; in __fillup_metapath()
343 * lookup_metapath - Walk the metadata tree to a specific point
344 * @ip: The inode
348 * hooked onto mp->mp_bh[0] and that the metapath has been initialised
353 * at which it found the unallocated block. Blocks which are found are
354 * added to the mp->mp_bh[] list.
359 static int lookup_metapath(struct gfs2_inode *ip, struct metapath *mp) in lookup_metapath() argument
361 return __fillup_metapath(ip, mp, 0, ip->i_height - 1); in lookup_metapath()
365 * fillup_metapath - fill up buffers for the metadata path to a specific height
366 * @ip: The inode
375 static int fillup_metapath(struct gfs2_inode *ip, struct metapath *mp, int h) in fillup_metapath() argument
382 for (x = h - 1; x > 0; x--) { in fillup_metapath()
383 if (mp->mp_bh[x]) in fillup_metapath()
387 ret = __fillup_metapath(ip, mp, x, h); in fillup_metapath()
390 return mp->mp_aheight - x - 1; in fillup_metapath()
398 for (hgt = mp->mp_fheight - 1; hgt >= 0; hgt--) { in metapath_to_block()
399 if (hgt < mp->mp_aheight) in metapath_to_block()
400 block += mp->mp_list[hgt] * factor; in metapath_to_block()
401 factor *= sdp->sd_inptrs; in metapath_to_block()
411 if (mp->mp_bh[i] == NULL) in release_metapath()
413 brelse(mp->mp_bh[i]); in release_metapath()
414 mp->mp_bh[i] = NULL; in release_metapath()
419 * gfs2_extent_length - Returns length of an extent of blocks
430 const __be64 *end = (__be64 *)(bh->b_data + bh->b_size); in gfs2_extent_length()
443 return ptr - first; in gfs2_extent_length()
449 * gfs2_metadata_walker - walk an indirect block
460 * gfs2_walk_metadata - walk a tree of indirect blocks
463 * @max_len: Maximum number of blocks to walk
473 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_walk_metadata() local
484 for (hgt = mp->mp_fheight - 1; hgt >= mp->mp_aheight; hgt--) { in gfs2_walk_metadata()
485 max_len += mp->mp_list[hgt] * factor; in gfs2_walk_metadata()
486 mp->mp_list[hgt] = 0; in gfs2_walk_metadata()
487 factor *= sdp->sd_inptrs; in gfs2_walk_metadata()
491 u16 start = mp->mp_list[hgt]; in gfs2_walk_metadata()
497 ptrs = (hgt >= 1 ? sdp->sd_inptrs : sdp->sd_diptrs) - start; in gfs2_walk_metadata()
506 BUG_ON(mp->mp_aheight == mp->mp_fheight); in gfs2_walk_metadata()
507 ptrs = mp->mp_list[hgt] - start; in gfs2_walk_metadata()
515 max_len -= len; in gfs2_walk_metadata()
521 brelse(mp->mp_bh[hgt]); in gfs2_walk_metadata()
522 mp->mp_bh[hgt] = NULL; in gfs2_walk_metadata()
523 mp->mp_list[hgt] = 0; in gfs2_walk_metadata()
526 hgt--; in gfs2_walk_metadata()
527 factor *= sdp->sd_inptrs; in gfs2_walk_metadata()
530 (mp->mp_list[hgt])++; in gfs2_walk_metadata()
532 if (mp->mp_list[hgt] >= sdp->sd_inptrs) in gfs2_walk_metadata()
535 if (mp->mp_list[hgt] >= sdp->sd_diptrs) in gfs2_walk_metadata()
541 ret = fillup_metapath(ip, mp, ip->i_height - 1); in gfs2_walk_metadata()
545 for (; ret; ret--) in gfs2_walk_metadata()
546 do_div(factor, sdp->sd_inptrs); in gfs2_walk_metadata()
547 mp->mp_aheight = hgt + 1; in gfs2_walk_metadata()
558 hgt = mp->mp_aheight - 1; in gfs2_hole_walker()
564 mp->mp_list[hgt] += ptr - start; in gfs2_hole_walker()
565 if (mp->mp_aheight == mp->mp_fheight) in gfs2_hole_walker()
574 * gfs2_hole_size - figure out the size of a hole
577 * @len: How far to look (in blocks)
598 hole_size = metapath_to_block(GFS2_SB(inode), &clone) - lblock; in gfs2_hole_size()
601 iomap->length = hole_size << inode->i_blkbits; in gfs2_hole_size()
613 __be64 *ptr = (__be64 *)(mp->mp_bh[i - 1]->b_data + in gfs2_indirect_init()
617 BUG_ON(mp->mp_bh[i] != NULL); in gfs2_indirect_init()
618 mp->mp_bh[i] = gfs2_meta_new(gl, bn); in gfs2_indirect_init()
619 gfs2_trans_add_meta(gl, mp->mp_bh[i]); in gfs2_indirect_init()
620 gfs2_metatype_set(mp->mp_bh[i], GFS2_METATYPE_IN, GFS2_FORMAT_IN); in gfs2_indirect_init()
621 gfs2_buffer_clear_tail(mp->mp_bh[i], sizeof(struct gfs2_meta_header)); in gfs2_indirect_init()
635 * gfs2_iomap_alloc - Build a metadata tree of the requested height
641 * i) Indirect blocks to grow the metadata tree height
642 * ii) Indirect blocks to fill in lower part of the metadata tree
643 * iii) Data blocks
646 * total number of blocks which we need via gfs2_alloc_size.
649 * enough contiguous free blocks are available, there will only be one
651 * the blocks in order.
654 * worth of data -- with a default block size of 4K, that's slightly
658 * iomap iteration would then find the blocks already allocated.
666 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_iomap_alloc() local
668 struct buffer_head *dibh = mp->mp_bh[0]; in gfs2_iomap_alloc()
671 size_t dblks = iomap->length >> inode->i_blkbits; in gfs2_iomap_alloc()
672 const unsigned end_of_metadata = mp->mp_fheight - 1; in gfs2_iomap_alloc()
678 BUG_ON(mp->mp_aheight < 1); in gfs2_iomap_alloc()
682 gfs2_trans_add_meta(ip->i_gl, dibh); in gfs2_iomap_alloc()
684 down_write(&ip->i_rw_mutex); in gfs2_iomap_alloc()
686 if (mp->mp_fheight == mp->mp_aheight) { in gfs2_iomap_alloc()
690 /* Need to allocate indirect blocks */ in gfs2_iomap_alloc()
691 if (mp->mp_fheight == ip->i_height) { in gfs2_iomap_alloc()
693 iblks = mp->mp_fheight - mp->mp_aheight; in gfs2_iomap_alloc()
698 iblks = mp->mp_fheight - ip->i_height; in gfs2_iomap_alloc()
700 iblks += (mp->mp_fheight - branch_start); in gfs2_iomap_alloc()
707 i = mp->mp_aheight; in gfs2_iomap_alloc()
709 n = blks - alloced; in gfs2_iomap_alloc()
710 ret = gfs2_alloc_blocks(ip, &bn, &n, 0, NULL); in gfs2_iomap_alloc()
714 if (state != ALLOC_DATA || gfs2_is_jdata(ip)) in gfs2_iomap_alloc()
720 ptr = (__be64 *)(dibh->b_data + in gfs2_iomap_alloc()
724 for (; i - 1 < mp->mp_fheight - ip->i_height && n > 0; in gfs2_iomap_alloc()
725 i++, n--) in gfs2_iomap_alloc()
726 gfs2_indirect_init(mp, ip->i_gl, i, 0, bn++); in gfs2_iomap_alloc()
727 if (i - 1 == mp->mp_fheight - ip->i_height) { in gfs2_iomap_alloc()
728 i--; in gfs2_iomap_alloc()
729 gfs2_buffer_copy_tail(mp->mp_bh[i], in gfs2_iomap_alloc()
735 ptr = (__be64 *)(mp->mp_bh[i]->b_data + in gfs2_iomap_alloc()
739 for(i = branch_start; i < mp->mp_fheight; i++) { in gfs2_iomap_alloc()
740 if (mp->mp_bh[i] == NULL) in gfs2_iomap_alloc()
742 brelse(mp->mp_bh[i]); in gfs2_iomap_alloc()
743 mp->mp_bh[i] = NULL; in gfs2_iomap_alloc()
751 if (i > 1 && i < mp->mp_fheight) in gfs2_iomap_alloc()
752 gfs2_trans_add_meta(ip->i_gl, mp->mp_bh[i-1]); in gfs2_iomap_alloc()
753 for (; i < mp->mp_fheight && n > 0; i++, n--) in gfs2_iomap_alloc()
754 gfs2_indirect_init(mp, ip->i_gl, i, in gfs2_iomap_alloc()
755 mp->mp_list[i-1], bn++); in gfs2_iomap_alloc()
756 if (i == mp->mp_fheight) in gfs2_iomap_alloc()
760 fallthrough; /* To tree complete, adding data blocks */ in gfs2_iomap_alloc()
763 BUG_ON(mp->mp_bh[end_of_metadata] == NULL); in gfs2_iomap_alloc()
764 gfs2_trans_add_meta(ip->i_gl, mp->mp_bh[end_of_metadata]); in gfs2_iomap_alloc()
767 iomap->addr = bn << inode->i_blkbits; in gfs2_iomap_alloc()
768 iomap->flags |= IOMAP_F_MERGED | IOMAP_F_NEW; in gfs2_iomap_alloc()
769 while (n-- > 0) in gfs2_iomap_alloc()
773 } while (iomap->addr == IOMAP_NULL_ADDR); in gfs2_iomap_alloc()
775 iomap->type = IOMAP_MAPPED; in gfs2_iomap_alloc()
776 iomap->length = (u64)dblks << inode->i_blkbits; in gfs2_iomap_alloc()
777 ip->i_height = mp->mp_fheight; in gfs2_iomap_alloc()
778 gfs2_add_inode_blocks(&ip->i_inode, alloced); in gfs2_iomap_alloc()
779 gfs2_dinode_out(ip, dibh->b_data); in gfs2_iomap_alloc()
781 up_write(&ip->i_rw_mutex); in gfs2_iomap_alloc()
788 * gfs2_alloc_size - Compute the maximum allocation size
791 * @size: Requested size in blocks
795 * Returns: size in blocks
799 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_alloc_size() local
811 if (gfs2_is_stuffed(ip) || mp->mp_fheight != mp->mp_aheight) { in gfs2_alloc_size()
812 unsigned int maxsize = mp->mp_fheight > 1 ? in gfs2_alloc_size()
813 sdp->sd_inptrs : sdp->sd_diptrs; in gfs2_alloc_size()
814 maxsize -= mp->mp_list[mp->mp_fheight - 1]; in gfs2_alloc_size()
820 first = metapointer(ip->i_height - 1, mp); in gfs2_alloc_size()
821 end = metaend(ip->i_height - 1, mp); in gfs2_alloc_size()
822 if (end - first > size) in gfs2_alloc_size()
828 return ptr - first; in gfs2_alloc_size()
832 * gfs2_iomap_get - Map blocks from an inode to disk blocks
846 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_iomap_get() local
859 return -EINVAL; in gfs2_iomap_get()
861 down_read(&ip->i_rw_mutex); in gfs2_iomap_get()
863 ret = gfs2_meta_inode_buffer(ip, &dibh); in gfs2_iomap_get()
866 mp->mp_bh[0] = dibh; in gfs2_iomap_get()
868 if (gfs2_is_stuffed(ip)) { in gfs2_iomap_get()
870 loff_t max_size = gfs2_max_stuffed_size(ip); in gfs2_iomap_get()
874 iomap->length = max_size; in gfs2_iomap_get()
878 ret = -ENOENT; in gfs2_iomap_get()
881 iomap->offset = pos; in gfs2_iomap_get()
882 iomap->length = length; in gfs2_iomap_get()
886 iomap->length = size; in gfs2_iomap_get()
888 iomap->addr = (ip->i_no_addr << inode->i_blkbits) + in gfs2_iomap_get()
890 iomap->type = IOMAP_INLINE; in gfs2_iomap_get()
891 iomap->inline_data = dibh->b_data + sizeof(struct gfs2_dinode); in gfs2_iomap_get()
896 lblock = pos >> inode->i_blkbits; in gfs2_iomap_get()
897 iomap->offset = lblock << inode->i_blkbits; in gfs2_iomap_get()
898 lblock_stop = (pos + length - 1) >> inode->i_blkbits; in gfs2_iomap_get()
899 len = lblock_stop - lblock + 1; in gfs2_iomap_get()
900 iomap->length = len << inode->i_blkbits; in gfs2_iomap_get()
902 height = ip->i_height; in gfs2_iomap_get()
903 while ((lblock + 1) * sdp->sd_sb.sb_bsize > sdp->sd_heightsize[height]) in gfs2_iomap_get()
906 if (height > ip->i_height || gfs2_is_stuffed(ip)) in gfs2_iomap_get()
909 ret = lookup_metapath(ip, mp); in gfs2_iomap_get()
913 if (mp->mp_aheight != ip->i_height) in gfs2_iomap_get()
916 ptr = metapointer(ip->i_height - 1, mp); in gfs2_iomap_get()
920 bh = mp->mp_bh[ip->i_height - 1]; in gfs2_iomap_get()
923 iomap->addr = be64_to_cpu(*ptr) << inode->i_blkbits; in gfs2_iomap_get()
924 iomap->length = len << inode->i_blkbits; in gfs2_iomap_get()
925 iomap->type = IOMAP_MAPPED; in gfs2_iomap_get()
926 iomap->flags |= IOMAP_F_MERGED; in gfs2_iomap_get()
928 iomap->flags |= IOMAP_F_GFS2_BOUNDARY; in gfs2_iomap_get()
931 iomap->bdev = inode->i_sb->s_bdev; in gfs2_iomap_get()
933 up_read(&ip->i_rw_mutex); in gfs2_iomap_get()
939 ret = -ENOENT; in gfs2_iomap_get()
940 else if (height == ip->i_height) in gfs2_iomap_get()
943 iomap->length = size - iomap->offset; in gfs2_iomap_get()
951 alloc_size = len << inode->i_blkbits; in gfs2_iomap_get()
952 if (alloc_size < iomap->length) in gfs2_iomap_get()
953 iomap->length = alloc_size; in gfs2_iomap_get()
955 if (pos < size && height == ip->i_height) in gfs2_iomap_get()
959 iomap->addr = IOMAP_NULL_ADDR; in gfs2_iomap_get()
960 iomap->type = IOMAP_HOLE; in gfs2_iomap_get()
965 * gfs2_lblk_to_dblk - convert logical block to disk block
979 loff_t pos = (loff_t)lblock << inode->i_blkbits; in gfs2_lblk_to_dblk()
985 *dblock = iomap.addr >> inode->i_blkbits; in gfs2_lblk_to_dblk()
992 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_write_lock() local
996 gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh); in gfs2_write_lock()
997 error = gfs2_glock_nq(&ip->i_gh); in gfs2_write_lock()
1000 if (&ip->i_inode == sdp->sd_rindex) { in gfs2_write_lock()
1001 struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); in gfs2_write_lock()
1003 error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, in gfs2_write_lock()
1004 GL_NOCACHE, &m_ip->i_gh); in gfs2_write_lock()
1011 gfs2_glock_dq(&ip->i_gh); in gfs2_write_lock()
1013 gfs2_holder_uninit(&ip->i_gh); in gfs2_write_lock()
1019 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_write_unlock() local
1022 if (&ip->i_inode == sdp->sd_rindex) { in gfs2_write_unlock()
1023 struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); in gfs2_write_unlock()
1025 gfs2_glock_dq_uninit(&m_ip->i_gh); in gfs2_write_unlock()
1027 gfs2_glock_dq_uninit(&ip->i_gh); in gfs2_write_unlock()
1033 unsigned int blockmask = i_blocksize(inode) - 1; in gfs2_iomap_page_prepare()
1035 unsigned int blocks; in gfs2_iomap_page_prepare() local
1037 blocks = ((pos & blockmask) + len + blockmask) >> inode->i_blkbits; in gfs2_iomap_page_prepare()
1038 return gfs2_trans_begin(sdp, RES_DINODE + blocks, 0); in gfs2_iomap_page_prepare()
1045 struct gfs2_trans *tr = current->journal_info; in gfs2_iomap_page_done()
1046 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_iomap_page_done() local
1049 if (page && !gfs2_is_stuffed(ip)) in gfs2_iomap_page_done()
1050 gfs2_page_add_databufs(ip, page, offset_in_page(pos), copied); in gfs2_iomap_page_done()
1052 if (tr->tr_num_buf_new) in gfs2_iomap_page_done()
1068 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_iomap_begin_write() local
1073 unstuff = gfs2_is_stuffed(ip) && in gfs2_iomap_begin_write()
1074 pos + length > gfs2_max_stuffed_size(ip); in gfs2_iomap_begin_write()
1076 if (unstuff || iomap->type == IOMAP_HOLE) { in gfs2_iomap_begin_write()
1082 gfs2_write_calc_reserv(ip, iomap->length, &data_blocks, in gfs2_iomap_begin_write()
1085 ret = gfs2_quota_lock_check(ip, &ap); in gfs2_iomap_begin_write()
1089 ret = gfs2_inplace_reserve(ip, &ap); in gfs2_iomap_begin_write()
1094 if (gfs2_is_jdata(ip)) in gfs2_iomap_begin_write()
1098 if (inode == sdp->sd_rindex) in gfs2_iomap_begin_write()
1100 rblocks += gfs2_rg_blocks(ip, data_blocks + ind_blocks); in gfs2_iomap_begin_write()
1103 iomap->length >> inode->i_blkbits); in gfs2_iomap_begin_write()
1108 ret = gfs2_unstuff_dinode(ip, NULL); in gfs2_iomap_begin_write()
1112 ret = gfs2_iomap_get(inode, iomap->offset, in gfs2_iomap_begin_write()
1113 iomap->length, flags, iomap, mp); in gfs2_iomap_begin_write()
1118 if (iomap->type == IOMAP_HOLE) { in gfs2_iomap_begin_write()
1122 gfs2_inplace_release(ip); in gfs2_iomap_begin_write()
1123 punch_hole(ip, iomap->offset, iomap->length); in gfs2_iomap_begin_write()
1128 tr = current->journal_info; in gfs2_iomap_begin_write()
1129 if (tr->tr_num_buf_new) in gfs2_iomap_begin_write()
1135 if (gfs2_is_stuffed(ip) || gfs2_is_jdata(ip)) in gfs2_iomap_begin_write()
1136 iomap->page_ops = &gfs2_iomap_page_ops; in gfs2_iomap_begin_write()
1142 gfs2_inplace_release(ip); in gfs2_iomap_begin_write()
1144 gfs2_quota_unlock(ip); in gfs2_iomap_begin_write()
1157 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_iomap_begin() local
1161 if (gfs2_is_jdata(ip)) in gfs2_iomap_begin()
1162 iomap->flags |= IOMAP_F_BUFFER_HEAD; in gfs2_iomap_begin()
1164 trace_gfs2_iomap_start(ip, pos, length, flags); in gfs2_iomap_begin()
1182 if (iomap->type != IOMAP_MAPPED) in gfs2_iomap_begin()
1183 ret = -ENOTBLK; in gfs2_iomap_begin()
1188 if (iomap->type == IOMAP_HOLE) in gfs2_iomap_begin()
1202 trace_gfs2_iomap_end(ip, iomap, ret); in gfs2_iomap_begin()
1209 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_iomap_end() local
1218 if (iomap->type == IOMAP_HOLE) in gfs2_iomap_end()
1225 if (!gfs2_is_stuffed(ip)) in gfs2_iomap_end()
1226 gfs2_ordered_add_inode(ip); in gfs2_iomap_end()
1228 if (inode == sdp->sd_rindex) in gfs2_iomap_end()
1231 gfs2_inplace_release(ip); in gfs2_iomap_end()
1233 if (ip->i_qadata && ip->i_qadata->qa_qd_num) in gfs2_iomap_end()
1234 gfs2_quota_unlock(ip); in gfs2_iomap_end()
1236 if (length != written && (iomap->flags & IOMAP_F_NEW)) { in gfs2_iomap_end()
1237 /* Deallocate blocks that were just allocated. */ in gfs2_iomap_end()
1239 loff_t hend = iomap->offset + iomap->length; in gfs2_iomap_end()
1242 truncate_pagecache_range(inode, hstart, hend - 1); in gfs2_iomap_end()
1243 punch_hole(ip, hstart, hend - hstart); in gfs2_iomap_end()
1250 if (iomap->flags & IOMAP_F_SIZE_CHANGED) in gfs2_iomap_end()
1252 set_bit(GLF_DIRTY, &ip->i_gl->gl_flags); in gfs2_iomap_end()
1266 * gfs2_block_map - Map one or more blocks of an inode to a disk block
1270 * @create: True if its ok to alloc blocks to satify the request
1272 * The size of the requested mapping is defined in bh_map->b_size.
1274 * Clears buffer_mapped(bh_map) and leaves bh_map->b_size unchanged
1276 * bh_map->b_size to indicate the size of the mapping when @lblock and
1277 * successive blocks are mapped, up to the requested size.
1281 * blocks were allocated.
1289 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_block_map() local
1290 loff_t pos = (loff_t)lblock << inode->i_blkbits; in gfs2_block_map()
1291 loff_t length = bh_map->b_size; in gfs2_block_map()
1300 trace_gfs2_bmap(ip, bh_map, lblock, create, 1); in gfs2_block_map()
1309 if (iomap.length > bh_map->b_size) { in gfs2_block_map()
1310 iomap.length = bh_map->b_size; in gfs2_block_map()
1314 map_bh(bh_map, inode->i_sb, iomap.addr >> inode->i_blkbits); in gfs2_block_map()
1315 bh_map->b_size = iomap.length; in gfs2_block_map()
1322 trace_gfs2_bmap(ip, bh_map, lblock, create, ret); in gfs2_block_map()
1339 bh.b_size = BIT(inode->i_blkbits + (create ? 0 : 5)); in gfs2_extent_map()
1341 *extlen = bh.b_size >> inode->i_blkbits; in gfs2_extent_map()
1358 BUG_ON(current->journal_info); in gfs2_block_zero_range()
1365 * gfs2_journaled_truncate - Wrapper for truncate_pagecache for jdata files
1378 u64 max_chunk = GFS2_JTRUNC_REVOKES * sdp->sd_vfs->s_blocksize; in gfs2_journaled_truncate()
1386 chunk = oldsize - newsize; in gfs2_journaled_truncate()
1392 chunk = offs + ((chunk - offs) & PAGE_MASK); in gfs2_journaled_truncate()
1394 truncate_pagecache(inode, oldsize - chunk); in gfs2_journaled_truncate()
1395 oldsize -= chunk; in gfs2_journaled_truncate()
1397 tr = current->journal_info; in gfs2_journaled_truncate()
1398 if (!test_bit(TR_TOUCHED, &tr->tr_flags)) in gfs2_journaled_truncate()
1412 struct gfs2_inode *ip = GFS2_I(inode); in trunc_start() local
1415 int journaled = gfs2_is_jdata(ip); in trunc_start()
1416 u64 oldsize = inode->i_size; in trunc_start()
1419 if (!gfs2_is_stuffed(ip)) { in trunc_start()
1421 unsigned int offs = newsize & (blocksize - 1); in trunc_start()
1424 blocksize - offs); in trunc_start()
1436 error = gfs2_meta_inode_buffer(ip, &dibh); in trunc_start()
1440 gfs2_trans_add_meta(ip->i_gl, dibh); in trunc_start()
1442 if (gfs2_is_stuffed(ip)) in trunc_start()
1445 ip->i_diskflags |= GFS2_DIF_TRUNC_IN_PROG; in trunc_start()
1448 ip->i_inode.i_mtime = ip->i_inode.i_ctime = current_time(&ip->i_inode); in trunc_start()
1449 gfs2_dinode_out(ip, dibh->b_data); in trunc_start()
1458 if (current->journal_info) in trunc_start()
1470 if (!ret && iomap->type == IOMAP_HOLE) in gfs2_iomap_get_alloc()
1477 * sweep_bh_for_rgrps - find an rgrp in a meta buffer and free blocks therein
1478 * @ip: inode
1484 * @btotal: place to keep count of total blocks freed
1486 * We sweep a metadata buffer (provided by the metapath) for blocks we need to
1493 * if we're interrupted by power-outages.
1496 * *btotal has the total number of blocks freed
1498 static int sweep_bh_for_rgrps(struct gfs2_inode *ip, struct gfs2_holder *rd_gh, in sweep_bh_for_rgrps() argument
1502 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); in sweep_bh_for_rgrps()
1515 rgd = gfs2_glock2rgrp(rd_gh->gh_gl); in sweep_bh_for_rgrps()
1517 gfs2_glock_is_locked_by_me(rd_gh->gh_gl)); in sweep_bh_for_rgrps()
1536 ret = -EIO; in sweep_bh_for_rgrps()
1539 ret = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, in sweep_bh_for_rgrps()
1545 if (gfs2_rs_active(&ip->i_res) && in sweep_bh_for_rgrps()
1546 rgd == ip->i_res.rs_rbm.rgd) in sweep_bh_for_rgrps()
1547 gfs2_rs_deltree(&ip->i_res); in sweep_bh_for_rgrps()
1551 actually process all the metadata blocks that relate to in sweep_bh_for_rgrps()
1555 if (current->journal_info == NULL) { in sweep_bh_for_rgrps()
1558 jblocks_rqsted = rgd->rd_length + RES_DINODE + in sweep_bh_for_rgrps()
1560 isize_blks = gfs2_get_inode_blocks(&ip->i_inode); in sweep_bh_for_rgrps()
1561 if (isize_blks > atomic_read(&sdp->sd_log_thresh2)) in sweep_bh_for_rgrps()
1563 atomic_read(&sdp->sd_log_thresh2); in sweep_bh_for_rgrps()
1568 revokes += end - start; in sweep_bh_for_rgrps()
1569 else if (ip->i_depth) in sweep_bh_for_rgrps()
1570 revokes += sdp->sd_inptrs; in sweep_bh_for_rgrps()
1574 down_write(&ip->i_rw_mutex); in sweep_bh_for_rgrps()
1576 /* check if we will exceed the transaction blocks requested */ in sweep_bh_for_rgrps()
1577 tr = current->journal_info; in sweep_bh_for_rgrps()
1578 if (tr->tr_num_buf_new + RES_STATFS + in sweep_bh_for_rgrps()
1579 RES_QUOTA >= atomic_read(&sdp->sd_log_thresh2)) { in sweep_bh_for_rgrps()
1601 gfs2_trans_add_meta(ip->i_gl, bh); in sweep_bh_for_rgrps()
1609 __gfs2_free_blocks(ip, rgd, bstart, (u32)blen, meta); in sweep_bh_for_rgrps()
1611 gfs2_add_inode_blocks(&ip->i_inode, -blen); in sweep_bh_for_rgrps()
1617 __gfs2_free_blocks(ip, rgd, bstart, (u32)blen, meta); in sweep_bh_for_rgrps()
1619 gfs2_add_inode_blocks(&ip->i_inode, -blen); in sweep_bh_for_rgrps()
1622 if (!ret && blks_outside_rgrp) { /* If buffer still has non-zero blocks in sweep_bh_for_rgrps()
1625 if (current->journal_info) { in sweep_bh_for_rgrps()
1628 ret = gfs2_meta_inode_buffer(ip, &dibh); in sweep_bh_for_rgrps()
1634 ip->i_inode.i_mtime = ip->i_inode.i_ctime = in sweep_bh_for_rgrps()
1635 current_time(&ip->i_inode); in sweep_bh_for_rgrps()
1636 gfs2_trans_add_meta(ip->i_gl, dibh); in sweep_bh_for_rgrps()
1637 gfs2_dinode_out(ip, dibh->b_data); in sweep_bh_for_rgrps()
1639 up_write(&ip->i_rw_mutex); in sweep_bh_for_rgrps()
1653 if (memcmp(mp->mp_list, list, h * sizeof(mp->mp_list[0]))) in mp_eq_to_hgt()
1659 * find_nonnull_ptr - find a non-null pointer given a metapath and height
1664 * Returns: true if a non-null pointer was found in the metapath buffer
1671 struct buffer_head *bh = mp->mp_bh[h]; in find_nonnull_ptr()
1675 ptr = first + mp->mp_list[h]; in find_nonnull_ptr()
1676 end = (__be64 *)(bh->b_data + bh->b_size); in find_nonnull_ptr()
1683 if (*ptr) { /* if we have a non-null pointer */ in find_nonnull_ptr()
1684 mp->mp_list[h] = ptr - first; in find_nonnull_ptr()
1687 mp->mp_list[h] = 0; in find_nonnull_ptr()
1708 struct buffer_head *bh = mp->mp_bh[height]; in metapointer_range()
1717 *end = (__be64 *)(bh->b_data + bh->b_size); in metapointer_range()
1736 end = (height > 0) ? sdp->sd_inptrs : sdp->sd_diptrs; in walk_done()
1737 return mp->mp_list[height] >= end; in walk_done()
1741 * punch_hole - deallocate blocks in a file
1742 * @ip: inode to truncate
1747 * function operates in whole blocks (@offset and @length are rounded
1748 * accordingly); partially filled blocks must be cleared otherwise.
1756 static int punch_hole(struct gfs2_inode *ip, u64 offset, u64 length) in punch_hole() argument
1758 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); in punch_hole()
1759 u64 maxsize = sdp->sd_heightsize[ip->i_height]; in punch_hole()
1763 unsigned int bsize_shift = sdp->sd_sb.sb_bsize_shift; in punch_hole()
1764 u64 lblock = (offset + (1 << bsize_shift) - 1) >> bsize_shift; in punch_hole()
1768 unsigned int strip_h = ip->i_height - 1; in punch_hole()
1777 * The starting point lies beyond the allocated meta-data; in punch_hole()
1778 * there are no blocks do deallocate. in punch_hole()
1811 find_metapath(sdp, lend, &mp, ip->i_height); in punch_hole()
1815 for (mp_h = ip->i_height - 1; mp_h > 0; mp_h--) { in punch_hole()
1822 find_metapath(sdp, lblock, &mp, ip->i_height); in punch_hole()
1825 for (mp_h = ip->i_height - 1; mp_h > 0; mp_h--) { in punch_hole()
1831 ret = gfs2_meta_inode_buffer(ip, &dibh); in punch_hole()
1836 ret = lookup_metapath(ip, &mp); in punch_hole()
1840 /* issue read-ahead on metadata */ in punch_hole()
1841 for (mp_h = 0; mp_h < mp.mp_aheight - 1; mp_h++) { in punch_hole()
1844 gfs2_metapath_ra(ip->i_gl, start, end); in punch_hole()
1847 if (mp.mp_aheight == ip->i_height) in punch_hole()
1856 ret = gfs2_quota_hold(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE); in punch_hole()
1871 prev_bnr != bh->b_blocknr)) { in punch_hole()
1874 (unsigned long long)ip->i_no_addr, in punch_hole()
1875 prev_bnr, ip->i_height, strip_h, mp_h); in punch_hole()
1877 prev_bnr = bh->b_blocknr; in punch_hole()
1882 ret = -EIO; in punch_hole()
1895 ret = sweep_bh_for_rgrps(ip, &rd_gh, mp.mp_bh[mp_h], in punch_hole()
1897 mp_h != ip->i_height - 1, in punch_hole()
1922 strip_h--; in punch_hole()
1929 mp_h--; /* search one metadata height down */ in punch_hole()
1935 * next non-null pointer. */ in punch_hole()
1940 /* No more non-null pointers at this height. Back up in punch_hole()
1947 ret = fillup_metapath(ip, &mp, mp_h); in punch_hole()
1951 /* On the first pass, issue read-ahead on metadata. */ in punch_hole()
1952 if (mp.mp_aheight > 1 && strip_h == ip->i_height - 1) { in punch_hole()
1953 unsigned int height = mp.mp_aheight - 1; in punch_hole()
1955 /* No read-ahead for data blocks. */ in punch_hole()
1956 if (mp.mp_aheight - 1 == strip_h) in punch_hole()
1957 height--; in punch_hole()
1959 for (; height >= mp.mp_aheight - ret; height--) { in punch_hole()
1964 gfs2_metapath_ra(ip->i_gl, start, end); in punch_hole()
1969 if (mp.mp_aheight - 1 == strip_h) { in punch_hole()
1973 if (mp.mp_aheight < ip->i_height) /* We have a partial height */ in punch_hole()
1974 mp_h = mp.mp_aheight - 1; in punch_hole()
1976 /* If we find a non-null block pointer, crawl a bit in punch_hole()
1988 if (current->journal_info == NULL) { in punch_hole()
1993 down_write(&ip->i_rw_mutex); in punch_hole()
1996 gfs2_quota_change(ip, -(s64)btotal, ip->i_inode.i_uid, in punch_hole()
1997 ip->i_inode.i_gid); in punch_hole()
1998 ip->i_inode.i_mtime = ip->i_inode.i_ctime = current_time(&ip->i_inode); in punch_hole()
1999 gfs2_trans_add_meta(ip->i_gl, dibh); in punch_hole()
2000 gfs2_dinode_out(ip, dibh->b_data); in punch_hole()
2001 up_write(&ip->i_rw_mutex); in punch_hole()
2008 if (current->journal_info) { in punch_hole()
2009 up_write(&ip->i_rw_mutex); in punch_hole()
2013 gfs2_quota_unhold(ip); in punch_hole()
2019 static int trunc_end(struct gfs2_inode *ip) in trunc_end() argument
2021 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); in trunc_end()
2029 down_write(&ip->i_rw_mutex); in trunc_end()
2031 error = gfs2_meta_inode_buffer(ip, &dibh); in trunc_end()
2035 if (!i_size_read(&ip->i_inode)) { in trunc_end()
2036 ip->i_height = 0; in trunc_end()
2037 ip->i_goal = ip->i_no_addr; in trunc_end()
2039 gfs2_ordered_del_inode(ip); in trunc_end()
2041 ip->i_inode.i_mtime = ip->i_inode.i_ctime = current_time(&ip->i_inode); in trunc_end()
2042 ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG; in trunc_end()
2044 gfs2_trans_add_meta(ip->i_gl, dibh); in trunc_end()
2045 gfs2_dinode_out(ip, dibh->b_data); in trunc_end()
2049 up_write(&ip->i_rw_mutex); in trunc_end()
2055 * do_shrink - make a file smaller
2067 struct gfs2_inode *ip = GFS2_I(inode); in do_shrink() local
2073 if (gfs2_is_stuffed(ip)) in do_shrink()
2076 error = punch_hole(ip, newsize, 0); in do_shrink()
2078 error = trunc_end(ip); in do_shrink()
2087 ret = do_shrink(inode, inode->i_size); in gfs2_trim_blocks()
2092 * do_grow - Touch and update inode size
2108 * Returns: 0 on success, or -ve on error
2113 struct gfs2_inode *ip = GFS2_I(inode); in do_grow() local
2120 if (gfs2_is_stuffed(ip) && size > gfs2_max_stuffed_size(ip)) { in do_grow()
2121 error = gfs2_quota_lock_check(ip, &ap); in do_grow()
2125 error = gfs2_inplace_reserve(ip, &ap); in do_grow()
2133 gfs2_is_jdata(ip) ? RES_JDATA : 0) + in do_grow()
2134 (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF ? in do_grow()
2140 error = gfs2_unstuff_dinode(ip, NULL); in do_grow()
2145 error = gfs2_meta_inode_buffer(ip, &dibh); in do_grow()
2150 ip->i_inode.i_mtime = ip->i_inode.i_ctime = current_time(&ip->i_inode); in do_grow()
2151 gfs2_trans_add_meta(ip->i_gl, dibh); in do_grow()
2152 gfs2_dinode_out(ip, dibh->b_data); in do_grow()
2159 gfs2_inplace_release(ip); in do_grow()
2161 gfs2_quota_unlock(ip); in do_grow()
2167 * gfs2_setattr_size - make a file a given size
2180 struct gfs2_inode *ip = GFS2_I(inode); in gfs2_setattr_size() local
2183 BUG_ON(!S_ISREG(inode->i_mode)); in gfs2_setattr_size()
2191 ret = gfs2_qa_get(ip); in gfs2_setattr_size()
2195 if (newsize >= inode->i_size) { in gfs2_setattr_size()
2202 gfs2_rs_delete(ip); in gfs2_setattr_size()
2203 gfs2_qa_put(ip); in gfs2_setattr_size()
2207 int gfs2_truncatei_resume(struct gfs2_inode *ip) in gfs2_truncatei_resume() argument
2210 error = punch_hole(ip, i_size_read(&ip->i_inode), 0); in gfs2_truncatei_resume()
2212 error = trunc_end(ip); in gfs2_truncatei_resume()
2216 int gfs2_file_dealloc(struct gfs2_inode *ip) in gfs2_file_dealloc() argument
2218 return punch_hole(ip, 0, 0); in gfs2_file_dealloc()
2222 * gfs2_free_journal_extents - Free cached journal bmap info
2231 while(!list_empty(&jd->extent_list)) { in gfs2_free_journal_extents()
2232 jext = list_first_entry(&jd->extent_list, struct gfs2_journal_extent, list); in gfs2_free_journal_extents()
2233 list_del(&jext->list); in gfs2_free_journal_extents()
2239 * gfs2_add_jextent - Add or merge a new extent to extent cache
2243 * @blocks: Size of extent in fs blocks
2245 * Returns: 0 on success or -ENOMEM
2248 static int gfs2_add_jextent(struct gfs2_jdesc *jd, u64 lblock, u64 dblock, u64 blocks) in gfs2_add_jextent() argument
2252 if (!list_empty(&jd->extent_list)) { in gfs2_add_jextent()
2253 jext = list_last_entry(&jd->extent_list, struct gfs2_journal_extent, list); in gfs2_add_jextent()
2254 if ((jext->dblock + jext->blocks) == dblock) { in gfs2_add_jextent()
2255 jext->blocks += blocks; in gfs2_add_jextent()
2262 return -ENOMEM; in gfs2_add_jextent()
2263 jext->dblock = dblock; in gfs2_add_jextent()
2264 jext->lblock = lblock; in gfs2_add_jextent()
2265 jext->blocks = blocks; in gfs2_add_jextent()
2266 list_add_tail(&jext->list, &jd->extent_list); in gfs2_add_jextent()
2267 jd->nr_extents++; in gfs2_add_jextent()
2272 * gfs2_map_journal_extents - Cache journal bmap info
2277 * blocks to all physical blocks for the given journal. This will save
2278 * us time when writing journal blocks. Most journals will have only one
2279 * extent that maps all their logical blocks. That's because gfs2.mkfs
2280 * arranges the journal blocks sequentially to maximize performance.
2295 struct gfs2_inode *ip = GFS2_I(jd->jd_inode); in gfs2_map_journal_extents() local
2297 unsigned int shift = sdp->sd_sb.sb_bsize_shift; in gfs2_map_journal_extents()
2303 lblock_stop = i_size_read(jd->jd_inode) >> shift; in gfs2_map_journal_extents()
2304 size = (lblock_stop - lblock) << shift; in gfs2_map_journal_extents()
2305 jd->nr_extents = 0; in gfs2_map_journal_extents()
2306 WARN_ON(!list_empty(&jd->extent_list)); in gfs2_map_journal_extents()
2312 rc = gfs2_block_map(jd->jd_inode, lblock, &bh, 0); in gfs2_map_journal_extents()
2318 size -= bh.b_size; in gfs2_map_journal_extents()
2319 lblock += (bh.b_size >> ip->i_inode.i_blkbits); in gfs2_map_journal_extents()
2323 fs_info(sdp, "journal %d mapped with %u extents in %lldms\n", jd->jd_jid, in gfs2_map_journal_extents()
2324 jd->nr_extents, ktime_ms_delta(end, start)); in gfs2_map_journal_extents()
2329 rc, jd->jd_jid, in gfs2_map_journal_extents()
2330 (unsigned long long)(i_size_read(jd->jd_inode) - size), in gfs2_map_journal_extents()
2331 jd->nr_extents); in gfs2_map_journal_extents()
2340 * gfs2_write_alloc_required - figure out if a write will require an allocation
2341 * @ip: the file being written to
2348 int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset, in gfs2_write_alloc_required() argument
2351 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); in gfs2_write_alloc_required()
2360 if (gfs2_is_stuffed(ip)) { in gfs2_write_alloc_required()
2361 if (offset + len > gfs2_max_stuffed_size(ip)) in gfs2_write_alloc_required()
2366 shift = sdp->sd_sb.sb_bsize_shift; in gfs2_write_alloc_required()
2367 BUG_ON(gfs2_is_dir(ip)); in gfs2_write_alloc_required()
2368 end_of_file = (i_size_read(&ip->i_inode) + sdp->sd_sb.sb_bsize - 1) >> shift; in gfs2_write_alloc_required()
2370 lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift; in gfs2_write_alloc_required()
2371 if (lblock_stop > end_of_file && ip != GFS2_I(sdp->sd_rindex)) in gfs2_write_alloc_required()
2374 size = (lblock_stop - lblock) << shift; in gfs2_write_alloc_required()
2378 gfs2_block_map(&ip->i_inode, lblock, &bh, 0); in gfs2_write_alloc_required()
2381 size -= bh.b_size; in gfs2_write_alloc_required()
2382 lblock += (bh.b_size >> ip->i_inode.i_blkbits); in gfs2_write_alloc_required()
2390 struct gfs2_inode *ip = GFS2_I(inode); in stuffed_zero_range() local
2394 if (offset >= inode->i_size) in stuffed_zero_range()
2396 if (offset + length > inode->i_size) in stuffed_zero_range()
2397 length = inode->i_size - offset; in stuffed_zero_range()
2399 error = gfs2_meta_inode_buffer(ip, &dibh); in stuffed_zero_range()
2402 gfs2_trans_add_meta(ip->i_gl, dibh); in stuffed_zero_range()
2403 memset(dibh->b_data + sizeof(struct gfs2_dinode) + offset, 0, in stuffed_zero_range()
2413 loff_t max_chunk = GFS2_JTRUNC_REVOKES * sdp->sd_vfs->s_blocksize; in gfs2_journaled_truncate_range()
2427 chunk = offs + ((chunk - offs) & PAGE_MASK); in gfs2_journaled_truncate_range()
2431 length -= chunk; in gfs2_journaled_truncate_range()
2433 tr = current->journal_info; in gfs2_journaled_truncate_range()
2434 if (!test_bit(TR_TOUCHED, &tr->tr_flags)) in gfs2_journaled_truncate_range()
2448 struct gfs2_inode *ip = GFS2_I(inode); in __gfs2_punch_hole() local
2454 if (!gfs2_is_stuffed(ip)) { in __gfs2_punch_hole()
2457 start_off = offset & (blocksize - 1); in __gfs2_punch_hole()
2458 end_len = (offset + length) & (blocksize - 1); in __gfs2_punch_hole()
2461 if (length > blocksize - start_off) in __gfs2_punch_hole()
2462 len = blocksize - start_off; in __gfs2_punch_hole()
2471 offset + length - end_len, end_len); in __gfs2_punch_hole()
2478 end = round_up(offset + length, blocksize) - 1; in __gfs2_punch_hole()
2479 error = filemap_write_and_wait_range(inode->i_mapping, start, end); in __gfs2_punch_hole()
2483 if (gfs2_is_jdata(ip)) in __gfs2_punch_hole()
2491 if (gfs2_is_stuffed(ip)) { in __gfs2_punch_hole()
2497 if (gfs2_is_jdata(ip)) { in __gfs2_punch_hole()
2498 BUG_ON(!current->journal_info); in __gfs2_punch_hole()
2501 truncate_pagecache_range(inode, offset, offset + length - 1); in __gfs2_punch_hole()
2506 if (current->journal_info) in __gfs2_punch_hole()
2509 if (!gfs2_is_stuffed(ip)) in __gfs2_punch_hole()
2510 error = punch_hole(ip, offset, length); in __gfs2_punch_hole()
2513 if (current->journal_info) in __gfs2_punch_hole()
2525 return -EIO; in gfs2_map_blocks()
2527 if (offset >= wpc->iomap.offset && in gfs2_map_blocks()
2528 offset < wpc->iomap.offset + wpc->iomap.length) in gfs2_map_blocks()
2531 memset(&wpc->iomap, 0, sizeof(wpc->iomap)); in gfs2_map_blocks()
2532 ret = gfs2_iomap_get(inode, offset, INT_MAX, 0, &wpc->iomap, &mp); in gfs2_map_blocks()