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Diffstat (limited to 'fs/ufs/dir.c')
-rw-r--r--fs/ufs/dir.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index 433b6f68403a..a6c0ca9f48bf 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -106,12 +106,13 @@ static void ufs_check_page(struct page *page)
106 char *kaddr = page_address(page); 106 char *kaddr = page_address(page);
107 unsigned offs, rec_len; 107 unsigned offs, rec_len;
108 unsigned limit = PAGE_CACHE_SIZE; 108 unsigned limit = PAGE_CACHE_SIZE;
109 const unsigned chunk_mask = UFS_SB(sb)->s_uspi->s_dirblksize - 1;
109 struct ufs_dir_entry *p; 110 struct ufs_dir_entry *p;
110 char *error; 111 char *error;
111 112
112 if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) { 113 if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) {
113 limit = dir->i_size & ~PAGE_CACHE_MASK; 114 limit = dir->i_size & ~PAGE_CACHE_MASK;
114 if (limit & (UFS_SECTOR_SIZE - 1)) 115 if (limit & chunk_mask)
115 goto Ebadsize; 116 goto Ebadsize;
116 if (!limit) 117 if (!limit)
117 goto out; 118 goto out;
@@ -126,7 +127,7 @@ static void ufs_check_page(struct page *page)
126 goto Ealign; 127 goto Ealign;
127 if (rec_len < UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, p))) 128 if (rec_len < UFS_DIR_REC_LEN(ufs_get_de_namlen(sb, p)))
128 goto Enamelen; 129 goto Enamelen;
129 if (((offs + rec_len - 1) ^ offs) & ~(UFS_SECTOR_SIZE-1)) 130 if (((offs + rec_len - 1) ^ offs) & ~chunk_mask)
130 goto Espan; 131 goto Espan;
131 if (fs32_to_cpu(sb, p->d_ino) > (UFS_SB(sb)->s_uspi->s_ipg * 132 if (fs32_to_cpu(sb, p->d_ino) > (UFS_SB(sb)->s_uspi->s_ipg *
132 UFS_SB(sb)->s_uspi->s_ncg)) 133 UFS_SB(sb)->s_uspi->s_ncg))
@@ -310,6 +311,7 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode)
310 int namelen = dentry->d_name.len; 311 int namelen = dentry->d_name.len;
311 struct super_block *sb = dir->i_sb; 312 struct super_block *sb = dir->i_sb;
312 unsigned reclen = UFS_DIR_REC_LEN(namelen); 313 unsigned reclen = UFS_DIR_REC_LEN(namelen);
314 const unsigned int chunk_size = UFS_SB(sb)->s_uspi->s_dirblksize;
313 unsigned short rec_len, name_len; 315 unsigned short rec_len, name_len;
314 struct page *page = NULL; 316 struct page *page = NULL;
315 struct ufs_dir_entry *de; 317 struct ufs_dir_entry *de;
@@ -342,8 +344,8 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode)
342 if ((char *)de == dir_end) { 344 if ((char *)de == dir_end) {
343 /* We hit i_size */ 345 /* We hit i_size */
344 name_len = 0; 346 name_len = 0;
345 rec_len = UFS_SECTOR_SIZE; 347 rec_len = chunk_size;
346 de->d_reclen = cpu_to_fs16(sb, UFS_SECTOR_SIZE); 348 de->d_reclen = cpu_to_fs16(sb, chunk_size);
347 de->d_ino = 0; 349 de->d_ino = 0;
348 goto got_it; 350 goto got_it;
349 } 351 }
@@ -431,7 +433,7 @@ ufs_readdir(struct file *filp, void *dirent, filldir_t filldir)
431 unsigned int offset = pos & ~PAGE_CACHE_MASK; 433 unsigned int offset = pos & ~PAGE_CACHE_MASK;
432 unsigned long n = pos >> PAGE_CACHE_SHIFT; 434 unsigned long n = pos >> PAGE_CACHE_SHIFT;
433 unsigned long npages = ufs_dir_pages(inode); 435 unsigned long npages = ufs_dir_pages(inode);
434 unsigned chunk_mask = ~(UFS_SECTOR_SIZE - 1); 436 unsigned chunk_mask = ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
435 int need_revalidate = filp->f_version != inode->i_version; 437 int need_revalidate = filp->f_version != inode->i_version;
436 unsigned flags = UFS_SB(sb)->s_flags; 438 unsigned flags = UFS_SB(sb)->s_flags;
437 439
@@ -511,7 +513,7 @@ int ufs_delete_entry(struct inode *inode, struct ufs_dir_entry *dir,
511 struct super_block *sb = inode->i_sb; 513 struct super_block *sb = inode->i_sb;
512 struct address_space *mapping = page->mapping; 514 struct address_space *mapping = page->mapping;
513 char *kaddr = page_address(page); 515 char *kaddr = page_address(page);
514 unsigned from = ((char*)dir - kaddr) & ~(UFS_SECTOR_SIZE - 1); 516 unsigned from = ((char*)dir - kaddr) & ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
515 unsigned to = ((char*)dir - kaddr) + fs16_to_cpu(sb, dir->d_reclen); 517 unsigned to = ((char*)dir - kaddr) + fs16_to_cpu(sb, dir->d_reclen);
516 struct ufs_dir_entry *pde = NULL; 518 struct ufs_dir_entry *pde = NULL;
517 struct ufs_dir_entry *de = (struct ufs_dir_entry *) (kaddr + from); 519 struct ufs_dir_entry *de = (struct ufs_dir_entry *) (kaddr + from);
@@ -556,6 +558,7 @@ int ufs_make_empty(struct inode * inode, struct inode *dir)
556 struct super_block * sb = dir->i_sb; 558 struct super_block * sb = dir->i_sb;
557 struct address_space *mapping = inode->i_mapping; 559 struct address_space *mapping = inode->i_mapping;
558 struct page *page = grab_cache_page(mapping, 0); 560 struct page *page = grab_cache_page(mapping, 0);
561 const unsigned int chunk_size = UFS_SB(sb)->s_uspi->s_dirblksize;
559 struct ufs_dir_entry * de; 562 struct ufs_dir_entry * de;
560 char *base; 563 char *base;
561 int err; 564 int err;
@@ -563,7 +566,7 @@ int ufs_make_empty(struct inode * inode, struct inode *dir)
563 if (!page) 566 if (!page)
564 return -ENOMEM; 567 return -ENOMEM;
565 kmap(page); 568 kmap(page);
566 err = mapping->a_ops->prepare_write(NULL, page, 0, UFS_SECTOR_SIZE); 569 err = mapping->a_ops->prepare_write(NULL, page, 0, chunk_size);
567 if (err) { 570 if (err) {
568 unlock_page(page); 571 unlock_page(page);
569 goto fail; 572 goto fail;
@@ -584,11 +587,11 @@ int ufs_make_empty(struct inode * inode, struct inode *dir)
584 ((char *)de + fs16_to_cpu(sb, de->d_reclen)); 587 ((char *)de + fs16_to_cpu(sb, de->d_reclen));
585 de->d_ino = cpu_to_fs32(sb, dir->i_ino); 588 de->d_ino = cpu_to_fs32(sb, dir->i_ino);
586 ufs_set_de_type(sb, de, dir->i_mode); 589 ufs_set_de_type(sb, de, dir->i_mode);
587 de->d_reclen = cpu_to_fs16(sb, UFS_SECTOR_SIZE - UFS_DIR_REC_LEN(1)); 590 de->d_reclen = cpu_to_fs16(sb, chunk_size - UFS_DIR_REC_LEN(1));
588 ufs_set_de_namlen(sb, de, 2); 591 ufs_set_de_namlen(sb, de, 2);
589 strcpy (de->d_name, ".."); 592 strcpy (de->d_name, "..");
590 593
591 err = ufs_commit_chunk(page, 0, UFS_SECTOR_SIZE); 594 err = ufs_commit_chunk(page, 0, chunk_size);
592fail: 595fail:
593 kunmap(page); 596 kunmap(page);
594 page_cache_release(page); 597 page_cache_release(page);