diff options
| author | Michael Halcrow <mhalcrow@us.ibm.com> | 2007-10-16 01:28:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:12 -0700 |
| commit | 4981e081cfe2c3f4abcfa3924ebd999cdbed4914 (patch) | |
| tree | 066d56ba49195eb0e733236fef4bb98f2d5f0114 /fs/ecryptfs/inode.c | |
| parent | 0216f7f7921759211e48e8b940eae29f0fe43902 (diff) | |
| download | lwn-4981e081cfe2c3f4abcfa3924ebd999cdbed4914.tar.gz lwn-4981e081cfe2c3f4abcfa3924ebd999cdbed4914.zip | |
eCryptfs: set up and destroy persistent lower file
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>
Diffstat (limited to 'fs/ecryptfs/inode.c')
| -rw-r--r-- | fs/ecryptfs/inode.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 7192a810bbe6..c746b5d8a336 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -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" |