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",uspi->s_fpbshift,uspi->s_apbmask,mask);
109 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
112 block = ufsi->i_u1.i_data[*p++];
116 struct buffer_head *bh;
119 bh = sb_bread(sb, uspi->s_sbbase + fs32_to_cpu(sb, block)+(n>>shift));
122 block = ((__fs32 *) bh->b_data)[n & mask];
127 ret = (u64) (uspi->s_sbbase + fs32_to_cpu(sb, block) + (frag & uspi->s_fpbmask));
130 u2_block = ufsi->i_u1.u2_i_data[*p++];
136 struct buffer_head *bh;
140 temp = (u64)(uspi->s_sbbase) + fs64_to_cpu(sb, u2_block);
141 bh = sb_bread(sb, temp +(u64) (n>>shift));
144 u2_block = ((__fs64 *)bh->b_data)[n & mask];
149 temp = (u64)uspi->s_sbbase + fs64_to_cpu(sb, u2_block);
150 ret = temp + (u64) (frag & uspi->s_fpbmask);
157 static void ufs_clear_frag(struct inode *inode, struct buffer_head *bh)
160 memset(bh->b_data, 0, inode->i_sb->s_blocksize);
161 set_buffer_uptodate(bh);
162 mark_buffer_dirty(bh);
165 sync_dirty_buffer(bh);
168 static struct buffer_head *
169 ufs_clear_frags(struct inode *inode, sector_t beg,
172 struct buffer_head *res, *bh;
173 sector_t end = beg + n;
175 res = sb_getblk(inode->i_sb, beg);
176 ufs_clear_frag(inode, res);
177 for (++beg; beg < end; ++beg) {
178 bh = sb_getblk(inode->i_sb, beg);
179 ufs_clear_frag(inode, bh);
186 * ufs_inode_getfrag() - allocate new fragment(s)
187 * @inode - pointer to inode
188 * @fragment - number of `fragment' which hold pointer
189 * to new allocated fragment(s)
190 * @new_fragment - number of new allocated fragment(s)
191 * @required - how many fragment(s) we require
192 * @err - we set it if something wrong
193 * @phys - pointer to where we save physical number of new allocated fragments,
194 * NULL if we allocate not data(indirect blocks for example).
195 * @new - we set it if we allocate new block
196 * @locked_page - for ufs_new_fragments()
198 static struct buffer_head *
199 ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
200 sector_t new_fragment, unsigned int required, int *err,
201 long *phys, int *new, struct page *locked_page)
203 struct ufs_inode_info *ufsi = UFS_I(inode);
204 struct super_block *sb = inode->i_sb;
205 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
206 struct buffer_head * result;
207 unsigned block, blockoff, lastfrag, lastblock, lastblockoff;
211 UFSD("ENTER, ino %lu, fragment %u, new_fragment %llu, required %u, "
212 "metadata %d\n", inode->i_ino, fragment,
213 (unsigned long long)new_fragment, required, !phys);
215 /* TODO : to be done for write support
216 if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
220 block = ufs_fragstoblks (fragment);
221 blockoff = ufs_fragnum (fragment);
222 p = ufsi->i_u1.i_data + block;
226 tmp = fs32_to_cpu(sb, *p);
227 lastfrag = ufsi->i_lastfrag;
228 if (tmp && fragment < lastfrag) {
230 result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
231 if (tmp == fs32_to_cpu(sb, *p)) {
232 UFSD("EXIT, result %u\n", tmp + blockoff);
238 *phys = tmp + blockoff;
243 lastblock = ufs_fragstoblks (lastfrag);
244 lastblockoff = ufs_fragnum (lastfrag);
246 * We will extend file into new block beyond last allocated block
248 if (lastblock < block) {
250 * We must reallocate last allocated block
253 p2 = ufsi->i_u1.i_data + lastblock;
254 tmp = ufs_new_fragments (inode, p2, lastfrag,
255 fs32_to_cpu(sb, *p2), uspi->s_fpb - lastblockoff,
258 if (lastfrag != ufsi->i_lastfrag)
263 lastfrag = ufsi->i_lastfrag;
266 goal = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]) + uspi->s_fpb;
267 tmp = ufs_new_fragments (inode, p, fragment - blockoff,
268 goal, required + blockoff,
272 * We will extend last allocated block
274 else if (lastblock == block) {
275 tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
276 fs32_to_cpu(sb, *p), required + (blockoff - lastblockoff),
280 * We will allocate new block before last allocated block
282 else /* (lastblock > block) */ {
283 if (lastblock && (tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock-1])))
284 goal = tmp + uspi->s_fpb;
285 tmp = ufs_new_fragments(inode, p, fragment - blockoff,
286 goal, uspi->s_fpb, err, locked_page);
289 if ((!blockoff && *p) ||
290 (blockoff && lastfrag != ufsi->i_lastfrag))
297 result = ufs_clear_frags(inode, tmp + blockoff, required);
299 *phys = tmp + blockoff;
305 inode->i_ctime = CURRENT_TIME_SEC;
307 ufs_sync_inode (inode);
308 mark_inode_dirty(inode);
309 UFSD("EXIT, result %u\n", tmp + blockoff);
312 /* This part : To be implemented ....
313 Required only for writing, not required for READ-ONLY.
316 u2_block = ufs_fragstoblks(fragment);
317 u2_blockoff = ufs_fragnum(fragment);
318 p = ufsi->i_u1.u2_i_data + block;
322 tmp = fs32_to_cpu(sb, *p);
323 lastfrag = ufsi->i_lastfrag;
329 * ufs_inode_getblock() - allocate new block
330 * @inode - pointer to inode
331 * @bh - pointer to block which hold "pointer" to new allocated block
332 * @fragment - number of `fragment' which hold pointer
333 * to new allocated block
334 * @new_fragment - number of new allocated fragment
335 * (block will hold this fragment and also uspi->s_fpb-1)
336 * @err - see ufs_inode_getfrag()
337 * @phys - see ufs_inode_getfrag()
338 * @new - see ufs_inode_getfrag()
339 * @locked_page - see ufs_inode_getfrag()
341 static struct buffer_head *
342 ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
343 unsigned int fragment, sector_t new_fragment, int *err,
344 long *phys, int *new, struct page *locked_page)
346 struct super_block *sb = inode->i_sb;
347 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
348 struct buffer_head * result;
349 unsigned tmp, goal, block, blockoff;
352 block = ufs_fragstoblks (fragment);
353 blockoff = ufs_fragnum (fragment);
355 UFSD("ENTER, ino %lu, fragment %u, new_fragment %llu, metadata %d\n",
356 inode->i_ino, fragment, (unsigned long long)new_fragment, !phys);
361 if (!buffer_uptodate(bh)) {
362 ll_rw_block (READ, 1, &bh);
364 if (!buffer_uptodate(bh))
368 p = (__fs32 *) bh->b_data + block;
370 tmp = fs32_to_cpu(sb, *p);
373 result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
374 if (tmp == fs32_to_cpu(sb, *p))
379 *phys = tmp + blockoff;
384 if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1]) + uspi->s_fpb))
385 goal = tmp + uspi->s_fpb;
387 goal = bh->b_blocknr + uspi->s_fpb;
388 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
389 uspi->s_fpb, err, locked_page);
391 if (fs32_to_cpu(sb, *p))
398 result = ufs_clear_frags(inode, tmp + blockoff, uspi->s_fpb);
400 *phys = tmp + blockoff;
404 mark_buffer_dirty(bh);
406 sync_dirty_buffer(bh);
407 inode->i_ctime = CURRENT_TIME_SEC;
408 mark_inode_dirty(inode);
409 UFSD("result %u\n", tmp + blockoff);
417 * ufs_getfrag_bloc() - `get_block_t' function, interface between UFS and
418 * readpage, writepage and so on
421 int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
423 struct super_block * sb = inode->i_sb;
424 struct ufs_sb_private_info * uspi = UFS_SB(sb)->s_uspi;
425 struct buffer_head * bh;
427 unsigned long ptr,phys;
431 phys64 = ufs_frag_map(inode, fragment);
432 UFSD("phys64 = %llu \n",phys64);
434 map_bh(bh_result, sb, phys64);
438 /* This code entered only while writing ....? */
447 UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
451 ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
452 << uspi->s_fpbshift))
459 * ok, these macros clean the logic up a bit and make
460 * it much more readable:
462 #define GET_INODE_DATABLOCK(x) \
463 ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new, bh_result->b_page)
464 #define GET_INODE_PTR(x) \
465 ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL, bh_result->b_page)
466 #define GET_INDIRECT_DATABLOCK(x) \
467 ufs_inode_getblock(inode, bh, x, fragment, \
468 &err, &phys, &new, bh_result->b_page);
469 #define GET_INDIRECT_PTR(x) \
470 ufs_inode_getblock(inode, bh, x, fragment, \
471 &err, NULL, NULL, bh_result->b_page);
473 if (ptr < UFS_NDIR_FRAGMENT) {
474 bh = GET_INODE_DATABLOCK(ptr);
477 ptr -= UFS_NDIR_FRAGMENT;
478 if (ptr < (1 << (uspi->s_apbshift + uspi->s_fpbshift))) {
479 bh = GET_INODE_PTR(UFS_IND_FRAGMENT + (ptr >> uspi->s_apbshift));
482 ptr -= 1 << (uspi->s_apbshift + uspi->s_fpbshift);
483 if (ptr < (1 << (uspi->s_2apbshift + uspi->s_fpbshift))) {
484 bh = GET_INODE_PTR(UFS_DIND_FRAGMENT + (ptr >> uspi->s_2apbshift));
487 ptr -= 1 << (uspi->s_2apbshift + uspi->s_fpbshift);
488 bh = GET_INODE_PTR(UFS_TIND_FRAGMENT + (ptr >> uspi->s_3apbshift));
489 bh = GET_INDIRECT_PTR((ptr >> uspi->s_2apbshift) & uspi->s_apbmask);
491 bh = GET_INDIRECT_PTR((ptr >> uspi->s_apbshift) & uspi->s_apbmask);
493 bh = GET_INDIRECT_DATABLOCK(ptr & uspi->s_apbmask);
495 #undef GET_INODE_DATABLOCK
497 #undef GET_INDIRECT_DATABLOCK
498 #undef GET_INDIRECT_PTR
504 set_buffer_new(bh_result);
505 map_bh(bh_result, sb, phys);
511 ufs_warning(sb, "ufs_get_block", "block < 0");
515 ufs_warning(sb, "ufs_get_block", "block > big");
519 static struct buffer_head *ufs_getfrag(struct inode *inode,
520 unsigned int fragment,
521 int create, int *err)
523 struct buffer_head dummy;
527 dummy.b_blocknr = -1000;
528 error = ufs_getfrag_block(inode, fragment, &dummy, create);
530 if (!error && buffer_mapped(&dummy)) {
531 struct buffer_head *bh;
532 bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
533 if (buffer_new(&dummy)) {
534 memset(bh->b_data, 0, inode->i_sb->s_blocksize);
535 set_buffer_uptodate(bh);
536 mark_buffer_dirty(bh);
543 struct buffer_head * ufs_bread (struct inode * inode, unsigned fragment,
544 int create, int * err)
546 struct buffer_head * bh;
548 UFSD("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment);
549 bh = ufs_getfrag (inode, fragment, create, err);
550 if (!bh || buffer_uptodate(bh))
552 ll_rw_block (READ, 1, &bh);
554 if (buffer_uptodate(bh))
561 static int ufs_writepage(struct page *page, struct writeback_control *wbc)
563 return block_write_full_page(page,ufs_getfrag_block,wbc);
565 static int ufs_readpage(struct file *file, struct page *page)
567 return block_read_full_page(page,ufs_getfrag_block);
569 static int ufs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
571 return block_prepare_write(page,from,to,ufs_getfrag_block);
573 static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
575 return generic_block_bmap(mapping,block,ufs_getfrag_block);
577 struct address_space_operations ufs_aops = {
578 .readpage = ufs_readpage,
579 .writepage = ufs_writepage,
580 .sync_page = block_sync_page,
581 .prepare_write = ufs_prepare_write,
582 .commit_write = generic_commit_write,
586 static void ufs_set_inode_ops(struct inode *inode)
588 if (S_ISREG(inode->i_mode)) {
589 inode->i_op = &ufs_file_inode_operations;
590 inode->i_fop = &ufs_file_operations;
591 inode->i_mapping->a_ops = &ufs_aops;
592 } else if (S_ISDIR(inode->i_mode)) {
593 inode->i_op = &ufs_dir_inode_operations;
594 inode->i_fop = &ufs_dir_operations;
595 inode->i_mapping->a_ops = &ufs_aops;
596 } else if (S_ISLNK(inode->i_mode)) {
597 if (!inode->i_blocks)
598 inode->i_op = &ufs_fast_symlink_inode_operations;
600 inode->i_op = &page_symlink_inode_operations;
601 inode->i_mapping->a_ops = &ufs_aops;
604 init_special_inode(inode, inode->i_mode,
605 ufs_get_inode_dev(inode->i_sb, UFS_I(inode)));
608 static void ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
610 struct ufs_inode_info *ufsi = UFS_I(inode);
611 struct super_block *sb = inode->i_sb;
616 * Copy data to the in-core inode.
618 inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
619 inode->i_nlink = fs16_to_cpu(sb, ufs_inode->ui_nlink);
620 if (inode->i_nlink == 0)
621 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
624 * Linux now has 32-bit uid and gid, so we can support EFT.
626 inode->i_uid = ufs_get_inode_uid(sb, ufs_inode);
627 inode->i_gid = ufs_get_inode_gid(sb, ufs_inode);
629 inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
630 inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);
631 inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);
632 inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
633 inode->i_mtime.tv_nsec = 0;
634 inode->i_atime.tv_nsec = 0;
635 inode->i_ctime.tv_nsec = 0;
636 inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
637 ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
638 ufsi->i_gen = fs32_to_cpu(sb, ufs_inode->ui_gen);
639 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
640 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
643 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
644 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
645 ufsi->i_u1.i_data[i] = ufs_inode->ui_u2.ui_addr.ui_db[i];
647 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
648 ufsi->i_u1.i_symlink[i] = ufs_inode->ui_u2.ui_symlink[i];
652 static void ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
654 struct ufs_inode_info *ufsi = UFS_I(inode);
655 struct super_block *sb = inode->i_sb;
659 UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
661 * Copy data to the in-core inode.
663 inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
664 inode->i_nlink = fs16_to_cpu(sb, ufs2_inode->ui_nlink);
665 if (inode->i_nlink == 0)
666 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
669 * Linux now has 32-bit uid and gid, so we can support EFT.
671 inode->i_uid = fs32_to_cpu(sb, ufs2_inode->ui_uid);
672 inode->i_gid = fs32_to_cpu(sb, ufs2_inode->ui_gid);
674 inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
675 inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_atime.tv_sec);
676 inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_ctime.tv_sec);
677 inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs2_inode->ui_mtime.tv_sec);
678 inode->i_mtime.tv_nsec = 0;
679 inode->i_atime.tv_nsec = 0;
680 inode->i_ctime.tv_nsec = 0;
681 inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
682 ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
683 ufsi->i_gen = fs32_to_cpu(sb, ufs2_inode->ui_gen);
685 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
686 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
689 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
690 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
691 ufsi->i_u1.u2_i_data[i] =
692 ufs2_inode->ui_u2.ui_addr.ui_db[i];
694 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
695 ufsi->i_u1.i_symlink[i] = ufs2_inode->ui_u2.ui_symlink[i];
699 void ufs_read_inode(struct inode * inode)
701 struct ufs_inode_info *ufsi = UFS_I(inode);
702 struct super_block * sb;
703 struct ufs_sb_private_info * uspi;
704 struct buffer_head * bh;
706 UFSD("ENTER, ino %lu\n", inode->i_ino);
709 uspi = UFS_SB(sb)->s_uspi;
711 if (inode->i_ino < UFS_ROOTINO ||
712 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
713 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
718 bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
720 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
724 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
725 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
727 ufs2_read_inode(inode,
728 ufs2_inode + ufs_inotofsbo(inode->i_ino));
730 struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data;
732 ufs1_read_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
735 inode->i_blksize = PAGE_SIZE;/*This is the optimal IO size (for stat)*/
738 (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
739 ufsi->i_dir_start_lookup = 0;
742 ufs_set_inode_ops(inode);
750 make_bad_inode(inode);
753 static int ufs_update_inode(struct inode * inode, int do_sync)
755 struct ufs_inode_info *ufsi = UFS_I(inode);
756 struct super_block * sb;
757 struct ufs_sb_private_info * uspi;
758 struct buffer_head * bh;
759 struct ufs_inode * ufs_inode;
763 UFSD("ENTER, ino %lu\n", inode->i_ino);
766 uspi = UFS_SB(sb)->s_uspi;
767 flags = UFS_SB(sb)->s_flags;
769 if (inode->i_ino < UFS_ROOTINO ||
770 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
771 ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
775 bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
777 ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
780 ufs_inode = (struct ufs_inode *) (bh->b_data + ufs_inotofsbo(inode->i_ino) * sizeof(struct ufs_inode));
782 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
783 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
785 ufs_set_inode_uid(sb, ufs_inode, inode->i_uid);
786 ufs_set_inode_gid(sb, ufs_inode, inode->i_gid);
788 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
789 ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
790 ufs_inode->ui_atime.tv_usec = 0;
791 ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);
792 ufs_inode->ui_ctime.tv_usec = 0;
793 ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
794 ufs_inode->ui_mtime.tv_usec = 0;
795 ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
796 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
797 ufs_inode->ui_gen = cpu_to_fs32(sb, ufsi->i_gen);
799 if ((flags & UFS_UID_MASK) == UFS_UID_EFT) {
800 ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
801 ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
804 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
805 /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
806 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
807 } else if (inode->i_blocks) {
808 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
809 ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.i_data[i];
812 for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
813 ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
817 memset (ufs_inode, 0, sizeof(struct ufs_inode));
819 mark_buffer_dirty(bh);
821 sync_dirty_buffer(bh);
828 int ufs_write_inode (struct inode * inode, int wait)
832 ret = ufs_update_inode (inode, wait);
837 int ufs_sync_inode (struct inode *inode)
839 return ufs_update_inode (inode, 1);
842 void ufs_delete_inode (struct inode * inode)
844 truncate_inode_pages(&inode->i_data, 0);
845 /*UFS_I(inode)->i_dtime = CURRENT_TIME;*/
847 mark_inode_dirty(inode);
848 ufs_update_inode(inode, IS_SYNC(inode));
851 ufs_truncate (inode);
852 ufs_free_inode (inode);