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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-05-19 10:12:41 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-05-19 10:12:41 -0700 |
| commit | 8d0bc2b456103a34c11e01305cd1aed1cde579e5 (patch) | |
| tree | 5e1e6ad55cc9e2b5c5617f6f320114b8cff9e3f3 /fs/ecryptfs/ecryptfs_kernel.h | |
| parent | 30ba3ead05763b172acaa65ae1be71af2a878940 (diff) | |
| parent | e40152ee1e1c7a63f4777791863215e3faa37a86 (diff) | |
| download | lwn-8d0bc2b456103a34c11e01305cd1aed1cde579e5.tar.gz lwn-8d0bc2b456103a34c11e01305cd1aed1cde579e5.zip | |
Merge commit 'v2.6.34' into next
Diffstat (limited to 'fs/ecryptfs/ecryptfs_kernel.h')
| -rw-r--r-- | fs/ecryptfs/ecryptfs_kernel.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index 542f625312f3..bfc2e0f78f00 100644 --- a/fs/ecryptfs/ecryptfs_kernel.h +++ b/fs/ecryptfs/ecryptfs_kernel.h @@ -35,6 +35,7 @@ #include <linux/scatterlist.h> #include <linux/hash.h> #include <linux/nsproxy.h> +#include <linux/backing-dev.h> /* Version verification for shared data structures w/ userspace */ #define ECRYPTFS_VERSION_MAJOR 0x00 @@ -273,7 +274,7 @@ struct ecryptfs_crypt_stat { u32 flags; unsigned int file_version; size_t iv_bytes; - size_t num_header_bytes_at_front; + size_t metadata_size; size_t extent_size; /* Data extent size; default is 4096 */ size_t key_size; size_t extent_shift; @@ -393,6 +394,7 @@ struct ecryptfs_mount_crypt_stat { struct ecryptfs_sb_info { struct super_block *wsi_sb; struct ecryptfs_mount_crypt_stat mount_crypt_stat; + struct backing_dev_info bdi; }; /* file private data. */ @@ -464,6 +466,14 @@ struct ecryptfs_daemon { extern struct mutex ecryptfs_daemon_hash_mux; +static inline size_t +ecryptfs_lower_header_size(struct ecryptfs_crypt_stat *crypt_stat) +{ + if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) + return 0; + return crypt_stat->metadata_size; +} + static inline struct ecryptfs_file_info * ecryptfs_file_to_private(struct file *file) { @@ -651,6 +661,9 @@ int ecryptfs_decrypt_page(struct page *page); int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry); int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry); int ecryptfs_new_file_context(struct dentry *ecryptfs_dentry); +void ecryptfs_write_crypt_stat_flags(char *page_virt, + struct ecryptfs_crypt_stat *crypt_stat, + size_t *written); int ecryptfs_read_and_validate_header_region(char *data, struct inode *ecryptfs_inode); int ecryptfs_read_and_validate_xattr_region(char *page_virt, |