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authorMichael Halcrow <mhalcrow@us.ibm.com>2008-07-23 21:30:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 10:47:31 -0700
commit391b52f98cf2e9bff227dad8bf9ea206fec43fa4 (patch)
tree40eb4e0d6d399d9b98b791db497097a1ff44894e /fs/ecryptfs/file.c
parent72b55fffd631a89e5be6fe1b4f2565bc4cd90deb (diff)
downloadop-kernel-dev-391b52f98cf2e9bff227dad8bf9ea206fec43fa4.zip
op-kernel-dev-391b52f98cf2e9bff227dad8bf9ea206fec43fa4.tar.gz
eCryptfs: Make all persistent file opens delayed
There is no good reason to immediately open the lower file, and that can cause problems with files that the user does not intend to immediately open, such as device nodes. This patch removes the persistent file open from the interpose step and pushes that to the locations where eCryptfs really does need the lower persistent file, such as just before reading or writing the metadata stored in the lower file header. Two functions are jumping to out_dput when they should just be jumping to out on error paths. This patch also fixes these. 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/file.c')
-rw-r--r--fs/ecryptfs/file.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 2c2d60d..9244d65 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -200,10 +200,6 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
goto out;
}
if (!ecryptfs_inode_to_private(inode)->lower_file) {
- BUG_ON(!(crypt_stat->flags & ECRYPTFS_DELAY_PERSISTENT));
- mutex_lock(&crypt_stat->cs_mutex);
- crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED);
- mutex_unlock(&crypt_stat->cs_mutex);
rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
if (rc) {
printk(KERN_ERR "%s: Error attempting to initialize "
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