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eCryptfs: protect crypt_stat->flags in ecryptfs_open()

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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>
This commit is contained in:
Michael Halcrow 2008-04-29 00:59:52 -07:00 committed by Linus Torvalds
parent 6a3fd92e73
commit 2f9b12a31f
1 changed files with 2 additions and 0 deletions
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2
fs/ecryptfs/file.c
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@ -195,7 +195,9 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
file, ecryptfs_inode_to_private(inode)->lower_file);
if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) {
ecryptfs_printk(KERN_DEBUG, "This is a directory\n");
mutex_lock(&crypt_stat->cs_mutex);
crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED);
mutex_unlock(&crypt_stat->cs_mutex);
rc = 0;
goto out;
}