lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

eCryptfs: set up and destroy persistent lower file

Browse Source 
This patch sets up and destroys the persistent lower file for each eCryptfs
inode.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
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
2007-10-16 01:28:09 -07:00
committed by Linus Torvalds
parent 0216f7f792
commit 4981e081cf
3 changed files with 103 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
fs/ecryptfs/inode.c
View File

@ -119,10 +119,23 @@ ecryptfs_do_create(struct inode *directory_inode,
}
rc = ecryptfs_create_underlying_file(lower_dir_dentry->d_inode,
ecryptfs_dentry, mode, nd);
if (unlikely(rc)) {
ecryptfs_printk(KERN_ERR,
"Failure to create underlying file\n");
goto out_lock;
if (rc) {
struct inode *ecryptfs_inode = ecryptfs_dentry->d_inode;
struct ecryptfs_inode_info *inode_info =
ecryptfs_inode_to_private(ecryptfs_inode);
printk(KERN_WARNING "%s: Error creating underlying file; "
"rc = [%d]; checking for existing\n", __FUNCTION__, rc);
if (inode_info) {
mutex_lock(&inode_info->lower_file_mutex);
if (!inode_info->lower_file) {
mutex_unlock(&inode_info->lower_file_mutex);
printk(KERN_ERR "%s: Failure to set underlying "
"file; rc = [%d]\n", __FUNCTION__, rc);
goto out_lock;
}
mutex_unlock(&inode_info->lower_file_mutex);
}
}
rc = ecryptfs_interpose(lower_dentry, ecryptfs_dentry,
directory_inode->i_sb, 0);
@ -252,6 +265,8 @@ ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry,
{
int rc;
/* ecryptfs_do_create() calls ecryptfs_interpose(), which opens
* the crypt_stat->lower_file (persistent file) */
rc = ecryptfs_do_create(directory_inode, ecryptfs_dentry, mode, nd);
if (unlikely(rc)) {
ecryptfs_printk(KERN_WARNING, "Failed to create file in"