tree 6651d8a2356b9075e6978285cbcfa7aab16e9b7a
parent 7a86617e553f47761b10f57de472d7262562b7de
author Tyler Hicks <tyhicks@linux.vnet.ibm.com> 1306230983 -0500
committer Tyler Hicks <tyhicks@linux.vnet.ibm.com> 1306697064 -0500

eCryptfs: Cleanup and optimize ecryptfs_lookup_interpose()

ecryptfs_lookup_interpose() has turned into spaghetti code over the
years. This is an effort to clean it up.

 - Shorten overly descriptive variable names such as ecryptfs_dentry
 - Simplify gotos and error paths
 - Create helper function for reading plaintext i_size from metadata

It also includes an optimization when reading i_size from the metadata.
A complete page-sized kmem_cache_alloc() was being done to read in 16
bytes of metadata. The buffer for that is now statically declared.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>