Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2, ext3, quota fixes from Jan Kara: "Fix three regressions caused by user namespace conversions (ext2, ext3, quota) and minor ext3 fix and cleanup." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: quota: Silence warning about PRJQUOTA not being handled in need_print_warning() ext3: fix return values on parse_options() failure ext2: fix return values on parse_options() failure ext3: ext3_bread usage audit ext3: fix possible non-initialized variable on htree_dirblock_to_tree()
This commit is contained in:
Linus Torvalds
Коммит
5d5c5dca9c
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@ -469,7 +469,7 @@ static int parse_options(char *options, struct super_block *sb)
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uid = make_kuid(current_user_ns(), option);
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if (!uid_valid(uid)) {
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ext2_msg(sb, KERN_ERR, "Invalid uid value %d", option);
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return -1;
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return 0;
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}
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sbi->s_resuid = uid;
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@ -480,7 +480,7 @@ static int parse_options(char *options, struct super_block *sb)
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gid = make_kgid(current_user_ns(), option);
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if (!gid_valid(gid)) {
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ext2_msg(sb, KERN_ERR, "Invalid gid value %d", option);
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return -1;
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return 0;
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}
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sbi->s_resgid = gid;
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break;
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@ -46,8 +46,7 @@ static struct buffer_head *ext3_append(handle_t *handle,
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*block = inode->i_size >> inode->i_sb->s_blocksize_bits;
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bh = ext3_bread(handle, inode, *block, 1, err);
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if (bh) {
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if ((bh = ext3_dir_bread(handle, inode, *block, 1, err))) {
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inode->i_size += inode->i_sb->s_blocksize;
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EXT3_I(inode)->i_disksize = inode->i_size;
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*err = ext3_journal_get_write_access(handle, bh);
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@ -339,8 +338,10 @@ dx_probe(struct qstr *entry, struct inode *dir,
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u32 hash;
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frame->bh = NULL;
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if (!(bh = ext3_bread (NULL,dir, 0, 0, err)))
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if (!(bh = ext3_dir_bread(NULL, dir, 0, 0, err))) {
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*err = ERR_BAD_DX_DIR;
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goto fail;
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}
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root = (struct dx_root *) bh->b_data;
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if (root->info.hash_version != DX_HASH_TEA &&
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root->info.hash_version != DX_HASH_HALF_MD4 &&
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@ -436,8 +437,10 @@ dx_probe(struct qstr *entry, struct inode *dir,
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frame->entries = entries;
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frame->at = at;
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if (!indirect--) return frame;
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if (!(bh = ext3_bread (NULL,dir, dx_get_block(at), 0, err)))
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if (!(bh = ext3_dir_bread(NULL, dir, dx_get_block(at), 0, err))) {
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*err = ERR_BAD_DX_DIR;
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goto fail2;
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}
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at = entries = ((struct dx_node *) bh->b_data)->entries;
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if (dx_get_limit(entries) != dx_node_limit (dir)) {
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ext3_warning(dir->i_sb, __func__,
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@ -535,8 +538,8 @@ static int ext3_htree_next_block(struct inode *dir, __u32 hash,
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* block so no check is necessary
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*/
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while (num_frames--) {
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if (!(bh = ext3_bread(NULL, dir, dx_get_block(p->at),
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0, &err)))
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if (!(bh = ext3_dir_bread(NULL, dir, dx_get_block(p->at),
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0, &err)))
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return err; /* Failure */
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p++;
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brelse (p->bh);
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@ -559,10 +562,11 @@ static int htree_dirblock_to_tree(struct file *dir_file,
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{
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struct buffer_head *bh;
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struct ext3_dir_entry_2 *de, *top;
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int err, count = 0;
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int err = 0, count = 0;
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dxtrace(printk("In htree dirblock_to_tree: block %d\n", block));
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if (!(bh = ext3_bread (NULL, dir, block, 0, &err)))
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if (!(bh = ext3_dir_bread(NULL, dir, block, 0, &err)))
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return err;
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de = (struct ext3_dir_entry_2 *) bh->b_data;
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@ -976,7 +980,7 @@ static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
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return NULL;
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do {
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block = dx_get_block(frame->at);
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if (!(bh = ext3_bread (NULL,dir, block, 0, err)))
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if (!(bh = ext3_dir_bread (NULL, dir, block, 0, err)))
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goto errout;
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retval = search_dirblock(bh, dir, entry,
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@ -1458,9 +1462,9 @@ static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
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}
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blocks = dir->i_size >> sb->s_blocksize_bits;
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for (block = 0; block < blocks; block++) {
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bh = ext3_bread(handle, dir, block, 0, &retval);
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if(!bh)
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if (!(bh = ext3_dir_bread(handle, dir, block, 0, &retval)))
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return retval;
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retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
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if (retval != -ENOSPC)
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return retval;
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@ -1500,7 +1504,7 @@ static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
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entries = frame->entries;
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at = frame->at;
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if (!(bh = ext3_bread(handle,dir, dx_get_block(frame->at), 0, &err)))
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if (!(bh = ext3_dir_bread(handle, dir, dx_get_block(frame->at), 0, &err)))
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goto cleanup;
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BUFFER_TRACE(bh, "get_write_access");
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@ -1790,8 +1794,7 @@ retry:
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inode->i_op = &ext3_dir_inode_operations;
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inode->i_fop = &ext3_dir_operations;
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inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
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dir_block = ext3_bread (handle, inode, 0, 1, &err);
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if (!dir_block)
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if (!(dir_block = ext3_dir_bread(handle, inode, 0, 1, &err)))
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goto out_clear_inode;
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BUFFER_TRACE(dir_block, "get_write_access");
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@ -1859,7 +1862,7 @@ static int empty_dir (struct inode * inode)
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sb = inode->i_sb;
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if (inode->i_size < EXT3_DIR_REC_LEN(1) + EXT3_DIR_REC_LEN(2) ||
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!(bh = ext3_bread (NULL, inode, 0, 0, &err))) {
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!(bh = ext3_dir_bread(NULL, inode, 0, 0, &err))) {
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if (err)
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ext3_error(inode->i_sb, __func__,
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"error %d reading directory #%lu offset 0",
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@ -1890,9 +1893,8 @@ static int empty_dir (struct inode * inode)
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(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
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err = 0;
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brelse (bh);
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bh = ext3_bread (NULL, inode,
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offset >> EXT3_BLOCK_SIZE_BITS(sb), 0, &err);
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if (!bh) {
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if (!(bh = ext3_dir_bread (NULL, inode,
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offset >> EXT3_BLOCK_SIZE_BITS(sb), 0, &err))) {
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if (err)
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ext3_error(sb, __func__,
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"error %d reading directory"
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@ -2388,7 +2390,7 @@ static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
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goto end_rename;
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}
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retval = -EIO;
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dir_bh = ext3_bread (handle, old_inode, 0, 0, &retval);
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dir_bh = ext3_dir_bread(handle, old_inode, 0, 0, &retval);
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if (!dir_bh)
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goto end_rename;
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if (le32_to_cpu(PARENT_INO(dir_bh->b_data)) != old_dir->i_ino)
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@ -6,3 +6,22 @@
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*/
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extern struct dentry *ext3_get_parent(struct dentry *child);
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static inline struct buffer_head *ext3_dir_bread(handle_t *handle,
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struct inode *inode,
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int block, int create,
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int *err)
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{
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struct buffer_head *bh;
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bh = ext3_bread(handle, inode, block, create, err);
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if (!bh && !(*err)) {
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*err = -EIO;
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ext3_error(inode->i_sb, __func__,
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"Directory hole detected on inode %lu\n",
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inode->i_ino);
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return NULL;
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}
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return bh;
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}
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@ -1001,7 +1001,7 @@ static int parse_options (char *options, struct super_block *sb,
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uid = make_kuid(current_user_ns(), option);
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if (!uid_valid(uid)) {
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ext3_msg(sb, KERN_ERR, "Invalid uid value %d", option);
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return -1;
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return 0;
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}
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sbi->s_resuid = uid;
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@ -1012,7 +1012,7 @@ static int parse_options (char *options, struct super_block *sb,
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gid = make_kgid(current_user_ns(), option);
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if (!gid_valid(gid)) {
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ext3_msg(sb, KERN_ERR, "Invalid gid value %d", option);
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return -1;
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return 0;
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}
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sbi->s_resgid = gid;
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break;
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@ -1160,6 +1160,8 @@ static int need_print_warning(struct dquot_warn *warn)
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return uid_eq(current_fsuid(), warn->w_dq_id.uid);
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case GRPQUOTA:
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return in_group_p(warn->w_dq_id.gid);
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case PRJQUOTA: /* Never taken... Just make gcc happy */
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return 0;
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}
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return 0;
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}
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