2 * inode.c - NILFS inode operations.
4 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Written by Ryusuke Konishi <ryusuke@osrg.net>
24 #include <linux/buffer_head.h>
25 #include <linux/gfp.h>
26 #include <linux/mpage.h>
27 #include <linux/writeback.h>
28 #include <linux/uio.h>
38 * nilfs_get_block() - get a file block on the filesystem (callback function)
39 * @inode - inode struct of the target file
40 * @blkoff - file block number
41 * @bh_result - buffer head to be mapped on
42 * @create - indicate whether allocating the block or not when it has not
45 * This function does not issue actual read request of the specified data
46 * block. It is done by VFS.
48 int nilfs_get_block(struct inode *inode, sector_t blkoff,
49 struct buffer_head *bh_result, int create)
51 struct nilfs_inode_info *ii = NILFS_I(inode);
54 struct inode *dat = nilfs_dat_inode(NILFS_I_NILFS(inode));
55 unsigned maxblocks = bh_result->b_size >> inode->i_blkbits;
57 down_read(&NILFS_MDT(dat)->mi_sem);
58 ret = nilfs_bmap_lookup_contig(ii->i_bmap, blkoff, &blknum, maxblocks);
59 up_read(&NILFS_MDT(dat)->mi_sem);
60 if (ret >= 0) { /* found */
61 map_bh(bh_result, inode->i_sb, blknum);
63 bh_result->b_size = (ret << inode->i_blkbits);
66 /* data block was not found */
67 if (ret == -ENOENT && create) {
68 struct nilfs_transaction_info ti;
70 bh_result->b_blocknr = 0;
71 err = nilfs_transaction_begin(inode->i_sb, &ti, 1);
74 err = nilfs_bmap_insert(ii->i_bmap, (unsigned long)blkoff,
75 (unsigned long)bh_result);
76 if (unlikely(err != 0)) {
79 * The get_block() function could be called
80 * from multiple callers for an inode.
81 * However, the page having this block must
82 * be locked in this case.
85 "nilfs_get_block: a race condition "
86 "while inserting a data block. "
87 "(inode number=%lu, file block "
90 (unsigned long long)blkoff);
92 } else if (err == -EINVAL) {
93 nilfs_error(inode->i_sb, __func__,
94 "broken bmap (inode=%lu)\n",
98 nilfs_transaction_abort(inode->i_sb);
101 nilfs_mark_inode_dirty(inode);
102 nilfs_transaction_commit(inode->i_sb); /* never fails */
103 /* Error handling should be detailed */
104 set_buffer_new(bh_result);
105 map_bh(bh_result, inode->i_sb, 0); /* dbn must be changed
107 } else if (ret == -ENOENT) {
108 /* not found is not error (e.g. hole); must return without
109 the mapped state flag. */
120 * nilfs_readpage() - implement readpage() method of nilfs_aops {}
121 * address_space_operations.
122 * @file - file struct of the file to be read
123 * @page - the page to be read
125 static int nilfs_readpage(struct file *file, struct page *page)
127 return mpage_readpage(page, nilfs_get_block);
131 * nilfs_readpages() - implement readpages() method of nilfs_aops {}
132 * address_space_operations.
133 * @file - file struct of the file to be read
134 * @mapping - address_space struct used for reading multiple pages
135 * @pages - the pages to be read
136 * @nr_pages - number of pages to be read
138 static int nilfs_readpages(struct file *file, struct address_space *mapping,
139 struct list_head *pages, unsigned nr_pages)
141 return mpage_readpages(mapping, pages, nr_pages, nilfs_get_block);
144 static int nilfs_writepages(struct address_space *mapping,
145 struct writeback_control *wbc)
147 struct inode *inode = mapping->host;
150 if (wbc->sync_mode == WB_SYNC_ALL)
151 err = nilfs_construct_dsync_segment(inode->i_sb, inode,
157 static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
159 struct inode *inode = page->mapping->host;
162 redirty_page_for_writepage(wbc, page);
165 if (wbc->sync_mode == WB_SYNC_ALL) {
166 err = nilfs_construct_segment(inode->i_sb);
169 } else if (wbc->for_reclaim)
170 nilfs_flush_segment(inode->i_sb, inode->i_ino);
175 static int nilfs_set_page_dirty(struct page *page)
177 int ret = __set_page_dirty_buffers(page);
180 struct inode *inode = page->mapping->host;
181 struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
182 unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
184 nilfs_set_file_dirty(sbi, inode, nr_dirty);
189 static int nilfs_write_begin(struct file *file, struct address_space *mapping,
190 loff_t pos, unsigned len, unsigned flags,
191 struct page **pagep, void **fsdata)
194 struct inode *inode = mapping->host;
195 int err = nilfs_transaction_begin(inode->i_sb, NULL, 1);
200 err = block_write_begin(mapping, pos, len, flags, pagep,
203 loff_t isize = mapping->host->i_size;
204 if (pos + len > isize)
205 vmtruncate(mapping->host, isize);
207 nilfs_transaction_abort(inode->i_sb);
212 static int nilfs_write_end(struct file *file, struct address_space *mapping,
213 loff_t pos, unsigned len, unsigned copied,
214 struct page *page, void *fsdata)
216 struct inode *inode = mapping->host;
217 unsigned start = pos & (PAGE_CACHE_SIZE - 1);
221 nr_dirty = nilfs_page_count_clean_buffers(page, start,
223 copied = generic_write_end(file, mapping, pos, len, copied, page,
225 nilfs_set_file_dirty(NILFS_SB(inode->i_sb), inode, nr_dirty);
226 err = nilfs_transaction_commit(inode->i_sb);
227 return err ? : copied;
231 nilfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
232 loff_t offset, unsigned long nr_segs)
234 struct file *file = iocb->ki_filp;
235 struct inode *inode = file->f_mapping->host;
241 /* Needs synchronization with the cleaner */
242 size = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
243 offset, nr_segs, nilfs_get_block, NULL);
246 * In case of error extending write may have instantiated a few
247 * blocks outside i_size. Trim these off again.
249 if (unlikely((rw & WRITE) && size < 0)) {
250 loff_t isize = i_size_read(inode);
251 loff_t end = offset + iov_length(iov, nr_segs);
254 vmtruncate(inode, isize);
260 const struct address_space_operations nilfs_aops = {
261 .writepage = nilfs_writepage,
262 .readpage = nilfs_readpage,
263 .sync_page = block_sync_page,
264 .writepages = nilfs_writepages,
265 .set_page_dirty = nilfs_set_page_dirty,
266 .readpages = nilfs_readpages,
267 .write_begin = nilfs_write_begin,
268 .write_end = nilfs_write_end,
269 /* .releasepage = nilfs_releasepage, */
270 .invalidatepage = block_invalidatepage,
271 .direct_IO = nilfs_direct_IO,
272 .is_partially_uptodate = block_is_partially_uptodate,
275 struct inode *nilfs_new_inode(struct inode *dir, int mode)
277 struct super_block *sb = dir->i_sb;
278 struct nilfs_sb_info *sbi = NILFS_SB(sb);
280 struct nilfs_inode_info *ii;
284 inode = new_inode(sb);
285 if (unlikely(!inode))
288 mapping_set_gfp_mask(inode->i_mapping,
289 mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
292 ii->i_state = 1 << NILFS_I_NEW;
294 err = nilfs_ifile_create_inode(sbi->s_ifile, &ino, &ii->i_bh);
296 goto failed_ifile_create_inode;
297 /* reference count of i_bh inherits from nilfs_mdt_read_block() */
299 atomic_inc(&sbi->s_inodes_count);
300 inode_init_owner(inode, dir, mode);
302 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
304 if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) {
305 err = nilfs_bmap_read(ii->i_bmap, NULL);
309 set_bit(NILFS_I_BMAP, &ii->i_state);
310 /* No lock is needed; iget() ensures it. */
313 ii->i_flags = NILFS_I(dir)->i_flags;
315 ii->i_flags &= ~(NILFS_IMMUTABLE_FL | NILFS_APPEND_FL);
317 ii->i_flags &= ~NILFS_DIRSYNC_FL;
319 /* ii->i_file_acl = 0; */
320 /* ii->i_dir_acl = 0; */
321 ii->i_dir_start_lookup = 0;
323 nilfs_set_inode_flags(inode);
324 spin_lock(&sbi->s_next_gen_lock);
325 inode->i_generation = sbi->s_next_generation++;
326 spin_unlock(&sbi->s_next_gen_lock);
327 insert_inode_hash(inode);
329 err = nilfs_init_acl(inode, dir);
331 goto failed_acl; /* never occur. When supporting
332 nilfs_init_acl(), proper cancellation of
333 above jobs should be considered */
340 iput(inode); /* raw_inode will be deleted through
341 generic_delete_inode() */
344 failed_ifile_create_inode:
345 make_bad_inode(inode);
346 iput(inode); /* if i_nlink == 1, generic_forget_inode() will be
352 void nilfs_free_inode(struct inode *inode)
354 struct super_block *sb = inode->i_sb;
355 struct nilfs_sb_info *sbi = NILFS_SB(sb);
358 /* XXX: check error code? Is there any thing I can do? */
359 (void) nilfs_ifile_delete_inode(sbi->s_ifile, inode->i_ino);
360 atomic_dec(&sbi->s_inodes_count);
363 void nilfs_set_inode_flags(struct inode *inode)
365 unsigned int flags = NILFS_I(inode)->i_flags;
367 inode->i_flags &= ~(S_SYNC | S_APPEND | S_IMMUTABLE | S_NOATIME |
369 if (flags & NILFS_SYNC_FL)
370 inode->i_flags |= S_SYNC;
371 if (flags & NILFS_APPEND_FL)
372 inode->i_flags |= S_APPEND;
373 if (flags & NILFS_IMMUTABLE_FL)
374 inode->i_flags |= S_IMMUTABLE;
375 #ifndef NILFS_ATIME_DISABLE
376 if (flags & NILFS_NOATIME_FL)
378 inode->i_flags |= S_NOATIME;
379 if (flags & NILFS_DIRSYNC_FL)
380 inode->i_flags |= S_DIRSYNC;
381 mapping_set_gfp_mask(inode->i_mapping,
382 mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
385 int nilfs_read_inode_common(struct inode *inode,
386 struct nilfs_inode *raw_inode)
388 struct nilfs_inode_info *ii = NILFS_I(inode);
391 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
392 inode->i_uid = (uid_t)le32_to_cpu(raw_inode->i_uid);
393 inode->i_gid = (gid_t)le32_to_cpu(raw_inode->i_gid);
394 inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
395 inode->i_size = le64_to_cpu(raw_inode->i_size);
396 inode->i_atime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
397 inode->i_ctime.tv_sec = le64_to_cpu(raw_inode->i_ctime);
398 inode->i_mtime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
399 inode->i_atime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
400 inode->i_ctime.tv_nsec = le32_to_cpu(raw_inode->i_ctime_nsec);
401 inode->i_mtime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
402 if (inode->i_nlink == 0 && inode->i_mode == 0)
403 return -EINVAL; /* this inode is deleted */
405 inode->i_blocks = le64_to_cpu(raw_inode->i_blocks);
406 ii->i_flags = le32_to_cpu(raw_inode->i_flags);
408 ii->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
409 ii->i_dir_acl = S_ISREG(inode->i_mode) ?
410 0 : le32_to_cpu(raw_inode->i_dir_acl);
412 ii->i_dir_start_lookup = 0;
414 inode->i_generation = le32_to_cpu(raw_inode->i_generation);
416 if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
417 S_ISLNK(inode->i_mode)) {
418 err = nilfs_bmap_read(ii->i_bmap, raw_inode);
421 set_bit(NILFS_I_BMAP, &ii->i_state);
422 /* No lock is needed; iget() ensures it. */
427 static int __nilfs_read_inode(struct super_block *sb, unsigned long ino,
430 struct nilfs_sb_info *sbi = NILFS_SB(sb);
431 struct inode *dat = nilfs_dat_inode(sbi->s_nilfs);
432 struct buffer_head *bh;
433 struct nilfs_inode *raw_inode;
436 down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
437 err = nilfs_ifile_get_inode_block(sbi->s_ifile, ino, &bh);
441 raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, bh);
443 err = nilfs_read_inode_common(inode, raw_inode);
447 if (S_ISREG(inode->i_mode)) {
448 inode->i_op = &nilfs_file_inode_operations;
449 inode->i_fop = &nilfs_file_operations;
450 inode->i_mapping->a_ops = &nilfs_aops;
451 } else if (S_ISDIR(inode->i_mode)) {
452 inode->i_op = &nilfs_dir_inode_operations;
453 inode->i_fop = &nilfs_dir_operations;
454 inode->i_mapping->a_ops = &nilfs_aops;
455 } else if (S_ISLNK(inode->i_mode)) {
456 inode->i_op = &nilfs_symlink_inode_operations;
457 inode->i_mapping->a_ops = &nilfs_aops;
459 inode->i_op = &nilfs_special_inode_operations;
461 inode, inode->i_mode,
462 huge_decode_dev(le64_to_cpu(raw_inode->i_device_code)));
464 nilfs_ifile_unmap_inode(sbi->s_ifile, ino, bh);
466 up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
467 nilfs_set_inode_flags(inode);
471 nilfs_ifile_unmap_inode(sbi->s_ifile, ino, bh);
475 up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
479 struct inode *nilfs_iget(struct super_block *sb, unsigned long ino)
484 inode = iget_locked(sb, ino);
485 if (unlikely(!inode))
486 return ERR_PTR(-ENOMEM);
487 if (!(inode->i_state & I_NEW))
490 err = __nilfs_read_inode(sb, ino, inode);
495 unlock_new_inode(inode);
499 void nilfs_write_inode_common(struct inode *inode,
500 struct nilfs_inode *raw_inode, int has_bmap)
502 struct nilfs_inode_info *ii = NILFS_I(inode);
504 raw_inode->i_mode = cpu_to_le16(inode->i_mode);
505 raw_inode->i_uid = cpu_to_le32(inode->i_uid);
506 raw_inode->i_gid = cpu_to_le32(inode->i_gid);
507 raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
508 raw_inode->i_size = cpu_to_le64(inode->i_size);
509 raw_inode->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
510 raw_inode->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
511 raw_inode->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
512 raw_inode->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
513 raw_inode->i_blocks = cpu_to_le64(inode->i_blocks);
515 raw_inode->i_flags = cpu_to_le32(ii->i_flags);
516 raw_inode->i_generation = cpu_to_le32(inode->i_generation);
519 nilfs_bmap_write(ii->i_bmap, raw_inode);
520 else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
521 raw_inode->i_device_code =
522 cpu_to_le64(huge_encode_dev(inode->i_rdev));
523 /* When extending inode, nilfs->ns_inode_size should be checked
524 for substitutions of appended fields */
527 void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh)
529 ino_t ino = inode->i_ino;
530 struct nilfs_inode_info *ii = NILFS_I(inode);
531 struct super_block *sb = inode->i_sb;
532 struct nilfs_sb_info *sbi = NILFS_SB(sb);
533 struct nilfs_inode *raw_inode;
535 raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, ibh);
537 if (test_and_clear_bit(NILFS_I_NEW, &ii->i_state))
538 memset(raw_inode, 0, NILFS_MDT(sbi->s_ifile)->mi_entry_size);
539 set_bit(NILFS_I_INODE_DIRTY, &ii->i_state);
541 nilfs_write_inode_common(inode, raw_inode, 0);
542 /* XXX: call with has_bmap = 0 is a workaround to avoid
543 deadlock of bmap. This delays update of i_bmap to just
545 nilfs_ifile_unmap_inode(sbi->s_ifile, ino, ibh);
548 #define NILFS_MAX_TRUNCATE_BLOCKS 16384 /* 64MB for 4KB block */
550 static void nilfs_truncate_bmap(struct nilfs_inode_info *ii,
556 if (!test_bit(NILFS_I_BMAP, &ii->i_state))
559 ret = nilfs_bmap_last_key(ii->i_bmap, &b);
568 b -= min_t(unsigned long, NILFS_MAX_TRUNCATE_BLOCKS, b - from);
569 ret = nilfs_bmap_truncate(ii->i_bmap, b);
570 nilfs_relax_pressure_in_lock(ii->vfs_inode.i_sb);
571 if (!ret || (ret == -ENOMEM &&
572 nilfs_bmap_truncate(ii->i_bmap, b) == 0))
577 nilfs_error(ii->vfs_inode.i_sb, __func__,
578 "bmap is broken (ino=%lu)", ii->vfs_inode.i_ino);
580 nilfs_warning(ii->vfs_inode.i_sb, __func__,
581 "failed to truncate bmap (ino=%lu, err=%d)",
582 ii->vfs_inode.i_ino, ret);
585 void nilfs_truncate(struct inode *inode)
587 unsigned long blkoff;
588 unsigned int blocksize;
589 struct nilfs_transaction_info ti;
590 struct super_block *sb = inode->i_sb;
591 struct nilfs_inode_info *ii = NILFS_I(inode);
593 if (!test_bit(NILFS_I_BMAP, &ii->i_state))
595 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
598 blocksize = sb->s_blocksize;
599 blkoff = (inode->i_size + blocksize - 1) >> sb->s_blocksize_bits;
600 nilfs_transaction_begin(sb, &ti, 0); /* never fails */
602 block_truncate_page(inode->i_mapping, inode->i_size, nilfs_get_block);
604 nilfs_truncate_bmap(ii, blkoff);
606 inode->i_mtime = inode->i_ctime = CURRENT_TIME;
608 nilfs_set_transaction_flag(NILFS_TI_SYNC);
610 nilfs_mark_inode_dirty(inode);
611 nilfs_set_file_dirty(NILFS_SB(sb), inode, 0);
612 nilfs_transaction_commit(sb);
613 /* May construct a logical segment and may fail in sync mode.
614 But truncate has no return value. */
617 void nilfs_delete_inode(struct inode *inode)
619 struct nilfs_transaction_info ti;
620 struct super_block *sb = inode->i_sb;
621 struct nilfs_inode_info *ii = NILFS_I(inode);
623 if (unlikely(is_bad_inode(inode))) {
624 if (inode->i_data.nrpages)
625 truncate_inode_pages(&inode->i_data, 0);
629 nilfs_transaction_begin(sb, &ti, 0); /* never fails */
631 if (inode->i_data.nrpages)
632 truncate_inode_pages(&inode->i_data, 0);
634 nilfs_truncate_bmap(ii, 0);
635 nilfs_mark_inode_dirty(inode);
636 nilfs_free_inode(inode);
637 /* nilfs_free_inode() marks inode buffer dirty */
639 nilfs_set_transaction_flag(NILFS_TI_SYNC);
640 nilfs_transaction_commit(sb);
641 /* May construct a logical segment and may fail in sync mode.
642 But delete_inode has no return value. */
645 int nilfs_setattr(struct dentry *dentry, struct iattr *iattr)
647 struct nilfs_transaction_info ti;
648 struct inode *inode = dentry->d_inode;
649 struct super_block *sb = inode->i_sb;
652 err = inode_change_ok(inode, iattr);
656 err = nilfs_transaction_begin(sb, &ti, 0);
659 err = inode_setattr(inode, iattr);
660 if (!err && (iattr->ia_valid & ATTR_MODE))
661 err = nilfs_acl_chmod(inode);
663 err = nilfs_transaction_commit(sb);
665 nilfs_transaction_abort(sb);
670 int nilfs_load_inode_block(struct nilfs_sb_info *sbi, struct inode *inode,
671 struct buffer_head **pbh)
673 struct nilfs_inode_info *ii = NILFS_I(inode);
676 spin_lock(&sbi->s_inode_lock);
677 if (ii->i_bh == NULL) {
678 spin_unlock(&sbi->s_inode_lock);
679 err = nilfs_ifile_get_inode_block(sbi->s_ifile, inode->i_ino,
683 spin_lock(&sbi->s_inode_lock);
684 if (ii->i_bh == NULL)
694 spin_unlock(&sbi->s_inode_lock);
698 int nilfs_inode_dirty(struct inode *inode)
700 struct nilfs_inode_info *ii = NILFS_I(inode);
701 struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
704 if (!list_empty(&ii->i_dirty)) {
705 spin_lock(&sbi->s_inode_lock);
706 ret = test_bit(NILFS_I_DIRTY, &ii->i_state) ||
707 test_bit(NILFS_I_BUSY, &ii->i_state);
708 spin_unlock(&sbi->s_inode_lock);
713 int nilfs_set_file_dirty(struct nilfs_sb_info *sbi, struct inode *inode,
716 struct nilfs_inode_info *ii = NILFS_I(inode);
718 atomic_add(nr_dirty, &sbi->s_nilfs->ns_ndirtyblks);
720 if (test_and_set_bit(NILFS_I_DIRTY, &ii->i_state))
723 spin_lock(&sbi->s_inode_lock);
724 if (!test_bit(NILFS_I_QUEUED, &ii->i_state) &&
725 !test_bit(NILFS_I_BUSY, &ii->i_state)) {
726 /* Because this routine may race with nilfs_dispose_list(),
727 we have to check NILFS_I_QUEUED here, too. */
728 if (list_empty(&ii->i_dirty) && igrab(inode) == NULL) {
729 /* This will happen when somebody is freeing
731 nilfs_warning(sbi->s_super, __func__,
732 "cannot get inode (ino=%lu)\n",
734 spin_unlock(&sbi->s_inode_lock);
735 return -EINVAL; /* NILFS_I_DIRTY may remain for
738 list_del(&ii->i_dirty);
739 list_add_tail(&ii->i_dirty, &sbi->s_dirty_files);
740 set_bit(NILFS_I_QUEUED, &ii->i_state);
742 spin_unlock(&sbi->s_inode_lock);
746 int nilfs_mark_inode_dirty(struct inode *inode)
748 struct nilfs_sb_info *sbi = NILFS_SB(inode->i_sb);
749 struct buffer_head *ibh;
752 err = nilfs_load_inode_block(sbi, inode, &ibh);
754 nilfs_warning(inode->i_sb, __func__,
755 "failed to reget inode block.\n");
758 nilfs_update_inode(inode, ibh);
759 nilfs_mdt_mark_buffer_dirty(ibh);
760 nilfs_mdt_mark_dirty(sbi->s_ifile);
766 * nilfs_dirty_inode - reflect changes on given inode to an inode block.
767 * @inode: inode of the file to be registered.
769 * nilfs_dirty_inode() loads a inode block containing the specified
770 * @inode and copies data from a nilfs_inode to a corresponding inode
771 * entry in the inode block. This operation is excluded from the segment
772 * construction. This function can be called both as a single operation
773 * and as a part of indivisible file operations.
775 void nilfs_dirty_inode(struct inode *inode)
777 struct nilfs_transaction_info ti;
779 if (is_bad_inode(inode)) {
780 nilfs_warning(inode->i_sb, __func__,
781 "tried to mark bad_inode dirty. ignored.\n");
785 nilfs_transaction_begin(inode->i_sb, &ti, 0);
786 nilfs_mark_inode_dirty(inode);
787 nilfs_transaction_commit(inode->i_sb); /* never fails */