eCryptfs: protect crypt_stat->flags in ecryptfs_open()
Make sure crypt_stat->flags is protected with a lock in ecryptfs_open(). Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -195,7 +195,9 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
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file, ecryptfs_inode_to_private(inode)->lower_file);
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if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) {
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ecryptfs_printk(KERN_DEBUG, "This is a directory\n");
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mutex_lock(&crypt_stat->cs_mutex);
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crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED);
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mutex_unlock(&crypt_stat->cs_mutex);
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rc = 0;
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goto out;
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}
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