Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... vfs: remove printk from set_nlink() wake up s_wait_unfrozen when ->freeze_fs fails
This commit is contained in:
commit
e19c29e8d8
3 changed files with 27 additions and 40 deletions
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@ -322,9 +322,6 @@ EXPORT_SYMBOL(clear_nlink);
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void set_nlink(struct inode *inode, unsigned int nlink)
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void set_nlink(struct inode *inode, unsigned int nlink)
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{
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{
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if (!nlink) {
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if (!nlink) {
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printk_ratelimited(KERN_INFO
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"set_nlink() clearing i_nlink on %s inode %li\n",
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inode->i_sb->s_type->name, inode->i_ino);
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clear_nlink(inode);
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clear_nlink(inode);
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} else {
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} else {
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/* Yes, some filesystems do change nlink from zero to one */
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/* Yes, some filesystems do change nlink from zero to one */
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@ -179,47 +179,33 @@ static const char *qnx4_checkroot(struct super_block *sb)
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struct qnx4_inode_entry *rootdir;
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struct qnx4_inode_entry *rootdir;
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int rd, rl;
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int rd, rl;
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int i, j;
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int i, j;
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int found = 0;
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if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/') {
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if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/')
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return "no qnx4 filesystem (no root dir).";
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return "no qnx4 filesystem (no root dir).";
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} else {
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QNX4DEBUG((KERN_NOTICE "QNX4 filesystem found on dev %s.\n", sb->s_id));
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QNX4DEBUG((KERN_NOTICE "QNX4 filesystem found on dev %s.\n", sb->s_id));
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rd = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_blk) - 1;
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rd = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_blk) - 1;
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rl = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_size);
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rl = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_size);
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for (j = 0; j < rl; j++) {
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for (j = 0; j < rl; j++) {
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bh = sb_bread(sb, rd + j); /* root dir, first block */
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bh = sb_bread(sb, rd + j); /* root dir, first block */
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if (bh == NULL)
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if (bh == NULL) {
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return "unable to read root entry.";
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return "unable to read root entry.";
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rootdir = (struct qnx4_inode_entry *) bh->b_data;
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}
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for (i = 0; i < QNX4_INODES_PER_BLOCK; i++, rootdir++) {
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for (i = 0; i < QNX4_INODES_PER_BLOCK; i++) {
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QNX4DEBUG((KERN_INFO "rootdir entry found : [%s]\n", rootdir->di_fname));
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rootdir = (struct qnx4_inode_entry *) (bh->b_data + i * QNX4_DIR_ENTRY_SIZE);
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if (strcmp(rootdir->di_fname, QNX4_BMNAME) != 0)
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if (rootdir->di_fname != NULL) {
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continue;
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QNX4DEBUG((KERN_INFO "rootdir entry found : [%s]\n", rootdir->di_fname));
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qnx4_sb(sb)->BitMap = kmemdup(rootdir,
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if (!strcmp(rootdir->di_fname,
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sizeof(struct qnx4_inode_entry),
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QNX4_BMNAME)) {
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GFP_KERNEL);
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found = 1;
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qnx4_sb(sb)->BitMap = kmemdup(rootdir,
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sizeof(struct qnx4_inode_entry),
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GFP_KERNEL);
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if (!qnx4_sb(sb)->BitMap) {
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brelse (bh);
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return "not enough memory for bitmap inode";
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}/* keep bitmap inode known */
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break;
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}
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}
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}
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brelse(bh);
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brelse(bh);
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if (found != 0) {
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if (!qnx4_sb(sb)->BitMap)
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break;
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return "not enough memory for bitmap inode";
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}
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/* keep bitmap inode known */
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}
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return NULL;
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if (found == 0) {
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return "bitmap file not found.";
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}
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}
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brelse(bh);
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}
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}
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return NULL;
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return "bitmap file not found.";
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}
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}
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static int qnx4_fill_super(struct super_block *s, void *data, int silent)
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static int qnx4_fill_super(struct super_block *s, void *data, int silent)
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@ -270,7 +256,7 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
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if (IS_ERR(root)) {
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if (IS_ERR(root)) {
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printk(KERN_ERR "qnx4: get inode failed\n");
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printk(KERN_ERR "qnx4: get inode failed\n");
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ret = PTR_ERR(root);
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ret = PTR_ERR(root);
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goto out;
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goto outb;
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}
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}
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ret = -ENOMEM;
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ret = -ENOMEM;
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@ -283,6 +269,8 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
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outi:
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outi:
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iput(root);
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iput(root);
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outb:
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kfree(qs->BitMap);
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out:
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out:
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brelse(bh);
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brelse(bh);
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outnobh:
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outnobh:
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@ -1186,6 +1186,8 @@ int freeze_super(struct super_block *sb)
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printk(KERN_ERR
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printk(KERN_ERR
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"VFS:Filesystem freeze failed\n");
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"VFS:Filesystem freeze failed\n");
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sb->s_frozen = SB_UNFROZEN;
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sb->s_frozen = SB_UNFROZEN;
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smp_wmb();
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wake_up(&sb->s_wait_unfrozen);
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deactivate_locked_super(sb);
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deactivate_locked_super(sb);
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return ret;
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return ret;
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}
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}
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