5 * Daniel Pirkl <daniel.pirkl@email.cz>
6 * Charles University, Faculty of Mathematics and Physics
10 * linux/fs/ext2/inode.c
12 * Copyright (C) 1992, 1993, 1994, 1995
13 * Remy Card (card@masi.ibp.fr)
14 * Laboratoire MASI - Institut Blaise Pascal
15 * Universite Pierre et Marie Curie (Paris VI)
19 * linux/fs/minix/inode.c
21 * Copyright (C) 1991, 1992 Linus Torvalds
23 * Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
24 * Big-endian to little-endian byte-swapping/bitmaps by
25 * David S. Miller (davem@caip.rutgers.edu), 1995
28 #include <asm/uaccess.h>
29 #include <asm/system.h>
31 #include <linux/errno.h>
33 #include <linux/ufs_fs.h>
34 #include <linux/time.h>
35 #include <linux/stat.h>
36 #include <linux/string.h>
38 #include <linux/smp_lock.h>
39 #include <linux/buffer_head.h>
44 static u64 ufs_frag_map(struct inode *inode, sector_t frag);
46 static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t offsets[4])
48 struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
49 int ptrs = uspi->s_apb;
50 int ptrs_bits = uspi->s_apbshift;
51 const long direct_blocks = UFS_NDADDR,
52 indirect_blocks = ptrs,
53 double_blocks = (1 << (ptrs_bits * 2));
57 UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
59 ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
60 } else if (i_block < direct_blocks) {
61 offsets[n++] = i_block;
62 } else if ((i_block -= direct_blocks) < indirect_blocks) {
63 offsets[n++] = UFS_IND_BLOCK;
64 offsets[n++] = i_block;
65 } else if ((i_block -= indirect_blocks) < double_blocks) {
66 offsets[n++] = UFS_DIND_BLOCK;
67 offsets[n++] = i_block >> ptrs_bits;
68 offsets[n++] = i_block & (ptrs - 1);
69 } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
70 offsets[n++] = UFS_TIND_BLOCK;
71 offsets[n++] = i_block >> (ptrs_bits * 2);
72 offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
73 offsets[n++] = i_block & (ptrs - 1);
75 ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");
81 * Returns the location of the fragment from
82 * the begining of the filesystem.
85 static u64 ufs_frag_map(struct inode *inode, sector_t frag)
87 struct ufs_inode_info *ufsi = UFS_I(inode);
88 struct super_block *sb = inode->i_sb;
89 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
90 u64 mask = (u64) uspi->s_apbmask>>uspi->s_fpbshift;
91 int shift = uspi->s_apbshift-uspi->s_fpbshift;
92 sector_t offsets[4], *p;
93 int depth = ufs_block_to_path(inode, frag >> uspi->s_fpbshift, offsets);
97 unsigned flags = UFS_SB(sb)->s_flags;
100 UFSD(": frag = %llu depth = %d\n", (unsigned long long)frag, depth);
101 UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",
102 uspi->s_fpbshift, uspi->s_apbmask,
103 (unsigned long long)mask);
111 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
114 block = ufsi->i_u1.i_data[*p++];
118 struct buffer_head *bh;
121 bh = sb_bread(sb, uspi->s_sbbase + fs32_to_cpu(sb, block)+(n>>shift));
124 block = ((__fs32 *) bh->b_data)[n & mask];
129 ret = (u64) (uspi->s_sbbase + fs32_to_cpu(sb, block) + (frag & uspi->s_fpbmask));
132 u2_block = ufsi->i_u1.u2_i_data[*p++];
138 struct buffer_head *bh;
142 temp = (u64)(uspi->s_sbbase) + fs64_to_cpu(sb, u2_block);
143 bh = sb_bread(sb, temp +(u64) (n>>shift));
146 u2_block = ((__fs64 *)bh->b_data)[n & mask];
151 temp = (u64)uspi->s_sbbase + fs64_to_cpu(sb, u2_block);
152 ret = temp + (u64) (frag & uspi->s_fpbmask);
160 * ufs_inode_getfrag() - allocate new fragment(s)
161 * @inode - pointer to inode
162 * @fragment - number of `fragment' which hold pointer
163 * to new allocated fragment(s)
164 * @new_fragment - number of new allocated fragment(s)
165 * @required - how many fragment(s) we require
166 * @err - we set it if something wrong
167 * @phys - pointer to where we save physical number of new allocated fragments,
168 * NULL if we allocate not data(indirect blocks for example).
169 * @new - we set it if we allocate new block
170 * @locked_page - for ufs_new_fragments()
172 static struct buffer_head *
173 ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
174 sector_t new_fragment, unsigned int required, int *err,
175 long *phys, int *new, struct page *locked_page)
177 struct ufs_inode_info *ufsi = UFS_I(inode);
178 struct super_block *sb = inode->i_sb;
179 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
180 struct buffer_head * result;
181 unsigned block, blockoff, lastfrag, lastblock, lastblockoff;
185 UFSD("ENTER, ino %lu, fragment %u, new_fragment %llu, required %u, "
186 "metadata %d\n", inode->i_ino, fragment,
187 (unsigned long long)new_fragment, required, !phys);
189 /* TODO : to be done for write support
190 if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
194 block = ufs_fragstoblks (fragment);
195 blockoff = ufs_fragnum (fragment);
196 p = ufsi->i_u1.i_data + block;
200 tmp = fs32_to_cpu(sb, *p);
201 lastfrag = ufsi->i_lastfrag;
202 if (tmp && fragment < lastfrag) {
204 result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
205 if (tmp == fs32_to_cpu(sb, *p)) {
206 UFSD("EXIT, result %u\n", tmp + blockoff);
212 *phys = tmp + blockoff;
217 lastblock = ufs_fragstoblks (lastfrag);
218 lastblockoff = ufs_fragnum (lastfrag);
220 * We will extend file into new block beyond last allocated block
222 if (lastblock < block) {
224 * We must reallocate last allocated block
227 p2 = ufsi->i_u1.i_data + lastblock;
228 tmp = ufs_new_fragments (inode, p2, lastfrag,
229 fs32_to_cpu(sb, *p2), uspi->s_fpb - lastblockoff,
232 if (lastfrag != ufsi->i_lastfrag)
237 lastfrag = ufsi->i_lastfrag;
240 tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]);
242 goal = tmp + uspi->s_fpb;
243 tmp = ufs_new_fragments (inode, p, fragment - blockoff,
244 goal, required + blockoff,
248 * We will extend last allocated block
250 else if (lastblock == block) {
251 tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
252 fs32_to_cpu(sb, *p), required + (blockoff - lastblockoff),
254 } else /* (lastblock > block) */ {
256 * We will allocate new block before last allocated block
259 tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[block-1]);
261 goal = tmp + uspi->s_fpb;
263 tmp = ufs_new_fragments(inode, p, fragment - blockoff,
264 goal, uspi->s_fpb, err, locked_page);
267 if ((!blockoff && *p) ||
268 (blockoff && lastfrag != ufsi->i_lastfrag))
275 result = sb_getblk(sb, tmp + blockoff);
277 *phys = tmp + blockoff;
283 inode->i_ctime = CURRENT_TIME_SEC;
285 ufs_sync_inode (inode);
286 mark_inode_dirty(inode);
287 UFSD("EXIT, result %u\n", tmp + blockoff);
290 /* This part : To be implemented ....
291 Required only for writing, not required for READ-ONLY.
294 u2_block = ufs_fragstoblks(fragment);
295 u2_blockoff = ufs_fragnum(fragment);
296 p = ufsi->i_u1.u2_i_data + block;
300 tmp = fs32_to_cpu(sb, *p);
301 lastfrag = ufsi->i_lastfrag;
307 * ufs_inode_getblock() - allocate new block
308 * @inode - pointer to inode
309 * @bh - pointer to block which hold "pointer" to new allocated block
310 * @fragment - number of `fragment' which hold pointer
311 * to new allocated block
312 * @new_fragment - number of new allocated fragment
313 * (block will hold this fragment and also uspi->s_fpb-1)
314 * @err - see ufs_inode_getfrag()
315 * @phys - see ufs_inode_getfrag()
316 * @new - see ufs_inode_getfrag()
317 * @locked_page - see ufs_inode_getfrag()
319 static struct buffer_head *
320 ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
321 unsigned int fragment, sector_t new_fragment, int *err,
322 long *phys, int *new, struct page *locked_page)
324 struct super_block *sb = inode->i_sb;
325 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
326 struct buffer_head * result;
327 unsigned tmp, goal, block, blockoff;
330 block = ufs_fragstoblks (fragment);
331 blockoff = ufs_fragnum (fragment);
333 UFSD("ENTER, ino %lu, fragment %u, new_fragment %llu, metadata %d\n",
334 inode->i_ino, fragment, (unsigned long long)new_fragment, !phys);
339 if (!buffer_uptodate(bh)) {
340 ll_rw_block (READ, 1, &bh);
342 if (!buffer_uptodate(bh))
346 p = (__fs32 *) bh->b_data + block;
348 tmp = fs32_to_cpu(sb, *p);
351 result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
352 if (tmp == fs32_to_cpu(sb, *p))
357 *phys = tmp + blockoff;
362 if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1])))
363 goal = tmp + uspi->s_fpb;
365 goal = bh->b_blocknr + uspi->s_fpb;
366 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
367 uspi->s_fpb, err, locked_page);
369 if (fs32_to_cpu(sb, *p))
376 result = sb_getblk(sb, tmp + blockoff);
378 *phys = tmp + blockoff;
382 mark_buffer_dirty(bh);
384 sync_dirty_buffer(bh);
385 inode->i_ctime = CURRENT_TIME_SEC;
386 mark_inode_dirty(inode);
387 UFSD("result %u\n", tmp + blockoff);
395 * ufs_getfrag_bloc() - `get_block_t' function, interface between UFS and
396 * readpage, writepage and so on
399 int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
401 struct super_block * sb = inode->i_sb;
402 struct ufs_sb_private_info * uspi = UFS_SB(sb)->s_uspi;
403 struct buffer_head * bh;
405 unsigned long ptr,phys;
409 phys64 = ufs_frag_map(inode, fragment);
410 UFSD("phys64 = %llu\n", (unsigned long long)phys64);
412 map_bh(bh_result, sb, phys64);
416 /* This code entered only while writing ....? */
425 UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
429 ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
430 << uspi->s_fpbshift))
437 * ok, these macros clean the logic up a bit and make
438 * it much more readable:
440 #define GET_INODE_DATABLOCK(x) \
441 ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new, bh_result->b_page)
442 #define GET_INODE_PTR(x) \
443 ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL, NULL)
444 #define GET_INDIRECT_DATABLOCK(x) \
445 ufs_inode_getblock(inode, bh, x, fragment, \
446 &err, &phys, &new, bh_result->b_page)
447 #define GET_INDIRECT_PTR(x) \
448 ufs_inode_getblock(inode, bh, x, fragment, \
449 &err, NULL, NULL, NULL)
451 if (ptr < UFS_NDIR_FRAGMENT) {
452 bh = GET_INODE_DATABLOCK(ptr);
455 ptr -= UFS_NDIR_FRAGMENT;
456 if (ptr < (1 << (uspi->s_apbshift + uspi->s_fpbshift))) {
457 bh = GET_INODE_PTR(UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift));
460 ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift);
461 if (ptr < (1 << (uspi->s_2apbshift + uspi->s_fpbshift))) {
462 bh = GET_INODE_PTR(UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift));
465 ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift);
466 bh = GET_INODE_PTR(UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift));
467 bh = GET_INDIRECT_PTR((ptr >> uspi->s_2apbshift) & uspi->s_apbmask);
469 bh = GET_INDIRECT_PTR((ptr >> uspi->s_apbshift) & uspi->s_apbmask);
471 bh = GET_INDIRECT_DATABLOCK(ptr & uspi->s_apbmask);
473 #undef GET_INODE_DATABLOCK
475 #undef GET_INDIRECT_DATABLOCK
476 #undef GET_INDIRECT_PTR
482 set_buffer_new(bh_result);
483 map_bh(bh_result, sb, phys);
489 ufs_warning(sb, "ufs_get_block", "block < 0");
493 ufs_warning(sb, "ufs_get_block", "block > big");
497 static struct buffer_head *ufs_getfrag(struct inode *inode,
498 unsigned int fragment,
499 int create, int *err)
501 struct buffer_head dummy;
505 dummy.b_blocknr = -1000;
506 error = ufs_getfrag_block(inode, fragment, &dummy, create);
508 if (!error && buffer_mapped(&dummy)) {
509 struct buffer_head *bh;
510 bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
511 if (buffer_new(&dummy)) {
512 memset(bh->b_data, 0, inode->i_sb->s_blocksize);
513 set_buffer_uptodate(bh);
514 mark_buffer_dirty(bh);
521 struct buffer_head * ufs_bread (struct inode * inode, unsigned fragment,
522 int create, int * err)
524 struct buffer_head * bh;
526 UFSD("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment);
527 bh = ufs_getfrag (inode, fragment, create, err);
528 if (!bh || buffer_uptodate(bh))
530 ll_rw_block (READ, 1, &bh);
532 if (buffer_uptodate(bh))
539 static int ufs_writepage(struct page *page, struct writeback_control *wbc)
541 return block_write_full_page(page,ufs_getfrag_block,wbc);
543 static int ufs_readpage(struct file *file, struct page *page)
545 return block_read_full_page(page,ufs_getfrag_block);
547 static int ufs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
549 return block_prepare_write(page,from,to,ufs_getfrag_block);
551 static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
553 return generic_block_bmap(mapping,block,ufs_getfrag_block);
555 const struct address_space_operations ufs_aops = {
556 .readpage = ufs_readpage,
557 .writepage = ufs_writepage,
558 .sync_page = block_sync_page,
559 .prepare_write = ufs_prepare_write,
560 .commit_write = generic_commit_write,
564 static void ufs_set_inode_ops(struct inode *inode)
566 if (S_ISREG(inode->i_mode)) {
567 inode->i_op = &ufs_file_inode_operations;
568 inode->i_fop = &ufs_file_operations;
569 inode->i_mapping->a_ops = &ufs_aops;
570 } else if (S_ISDIR(inode->i_mode)) {
571 inode->i_op = &ufs_dir_inode_operations;
572 inode->i_fop = &ufs_dir_operations;
573 inode->i_mapping->a_ops = &ufs_aops;
574 } else if (S_ISLNK(inode->i_mode)) {
575 if (!inode->i_blocks)
576 inode->i_op = &ufs_fast_symlink_inode_operations;
578 inode->i_op = &page_symlink_inode_operations;
579 inode->i_mapping->a_ops = &ufs_aops;
582 init_special_inode(inode, inode->i_mode,
583 ufs_get_inode_dev(inode->i_sb, UFS_I(inode)));
586 static void ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
588 struct ufs_inode_info *ufsi = UFS_I(inode);
589 struct super_block *sb = inode->i_sb;
594 * Copy data to the in-core inode.
596 inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
597 inode->i_nlink = fs16_to_cpu(sb, ufs_inode->ui_nlink);
598 if (inode->i_nlink == 0)
599 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
602 * Linux now has 32-bit uid and gid, so we can support EFT.
604 inode->i_uid = ufs_get_inode_uid(sb, ufs_inode);
605 inode->i_gid = ufs_get_inode_gid(sb, ufs_inode);
607 inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
608 inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);
609 inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);
610 inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
611 inode->i_mtime.tv_nsec = 0;
612 inode->i_atime.tv_nsec = 0;
613 inode->i_ctime.tv_nsec = 0;
614 inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
615 ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
616 ufsi->i_gen = fs32_to_cpu(sb, ufs_inode->ui_gen);
617 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
618 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
621 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
622 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
623 ufsi->i_u1.i_data[i] = ufs_inode->ui_u2.ui_addr.ui_db[i];
625 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
626 ufsi->i_u1.i_symlink[i] = ufs_inode->ui_u2.ui_symlink[i];
630 static void ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
632 struct ufs_inode_info *ufsi = UFS_I(inode);
633 struct super_block *sb = inode->i_sb;
637 UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
639 * Copy data to the in-core inode.
641 inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
642 inode->i_nlink = fs16_to_cpu(sb, ufs2_inode->ui_nlink);
643 if (inode->i_nlink == 0)
644 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
647 * Linux now has 32-bit uid and gid, so we can support EFT.
649 inode->i_uid = fs32_to_cpu(sb, ufs2_inode->ui_uid);
650 inode->i_gid = fs32_to_cpu(sb, ufs2_inode->ui_gid);
652 inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
653 inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_atime.tv_sec);
654 inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_ctime.tv_sec);
655 inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_mtime.tv_sec);
656 inode->i_mtime.tv_nsec = 0;
657 inode->i_atime.tv_nsec = 0;
658 inode->i_ctime.tv_nsec = 0;
659 inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
660 ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
661 ufsi->i_gen = fs32_to_cpu(sb, ufs2_inode->ui_gen);
663 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
664 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
667 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
668 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
669 ufsi->i_u1.u2_i_data[i] =
670 ufs2_inode->ui_u2.ui_addr.ui_db[i];
672 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
673 ufsi->i_u1.i_symlink[i] = ufs2_inode->ui_u2.ui_symlink[i];
677 void ufs_read_inode(struct inode * inode)
679 struct ufs_inode_info *ufsi = UFS_I(inode);
680 struct super_block * sb;
681 struct ufs_sb_private_info * uspi;
682 struct buffer_head * bh;
684 UFSD("ENTER, ino %lu\n", inode->i_ino);
687 uspi = UFS_SB(sb)->s_uspi;
689 if (inode->i_ino < UFS_ROOTINO ||
690 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
691 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
696 bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
698 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
702 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
703 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
705 ufs2_read_inode(inode,
706 ufs2_inode + ufs_inotofsbo(inode->i_ino));
708 struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data;
710 ufs1_read_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
715 (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
716 ufsi->i_dir_start_lookup = 0;
719 ufs_set_inode_ops(inode);
727 make_bad_inode(inode);
730 static int ufs_update_inode(struct inode * inode, int do_sync)
732 struct ufs_inode_info *ufsi = UFS_I(inode);
733 struct super_block * sb;
734 struct ufs_sb_private_info * uspi;
735 struct buffer_head * bh;
736 struct ufs_inode * ufs_inode;
740 UFSD("ENTER, ino %lu\n", inode->i_ino);
743 uspi = UFS_SB(sb)->s_uspi;
744 flags = UFS_SB(sb)->s_flags;
746 if (inode->i_ino < UFS_ROOTINO ||
747 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
748 ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
752 bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
754 ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
757 ufs_inode = (struct ufs_inode *) (bh->b_data + ufs_inotofsbo(inode->i_ino) * sizeof(struct ufs_inode));
759 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
760 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
762 ufs_set_inode_uid(sb, ufs_inode, inode->i_uid);
763 ufs_set_inode_gid(sb, ufs_inode, inode->i_gid);
765 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
766 ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
767 ufs_inode->ui_atime.tv_usec = 0;
768 ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);
769 ufs_inode->ui_ctime.tv_usec = 0;
770 ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
771 ufs_inode->ui_mtime.tv_usec = 0;
772 ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
773 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
774 ufs_inode->ui_gen = cpu_to_fs32(sb, ufsi->i_gen);
776 if ((flags & UFS_UID_MASK) == UFS_UID_EFT) {
777 ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
778 ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
781 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
782 /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
783 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
784 } else if (inode->i_blocks) {
785 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
786 ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.i_data[i];
789 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
790 ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
794 memset (ufs_inode, 0, sizeof(struct ufs_inode));
796 mark_buffer_dirty(bh);
798 sync_dirty_buffer(bh);
805 int ufs_write_inode (struct inode * inode, int wait)
809 ret = ufs_update_inode (inode, wait);
814 int ufs_sync_inode (struct inode *inode)
816 return ufs_update_inode (inode, 1);
819 void ufs_delete_inode (struct inode * inode)
823 truncate_inode_pages(&inode->i_data, 0);
824 /*UFS_I(inode)->i_dtime = CURRENT_TIME;*/
826 mark_inode_dirty(inode);
827 ufs_update_inode(inode, IS_SYNC(inode));
828 old_i_size = inode->i_size;
830 if (inode->i_blocks && ufs_truncate(inode, old_i_size))
831 ufs_warning(inode->i_sb, __FUNCTION__, "ufs_truncate failed\n");
832 ufs_free_inode (inode);