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| author | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2011-02-23 07:54:20 +0100 |
|---|---|---|
| committer | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2011-03-28 08:47:44 +0200 |
| commit | fed8859b3ab94274c986cbdf7d27130e0545f02c (patch) | |
| tree | 01d36d5f87469aa25a7431e0b21ff86b7e524052 | |
| parent | eCryptfs: Remove unnecessary grow_file() function (diff) | |
| download | linux-fed8859b3ab94274c986cbdf7d27130e0545f02c.tar.xz linux-fed8859b3ab94274c986cbdf7d27130e0545f02c.zip | |
eCryptfs: Remove ECRYPTFS_NEW_FILE crypt stat flag
Now that grow_file() is not called in the ecryptfs_create() path, the
ECRYPTFS_NEW_FILE flag is no longer needed. It helped
ecryptfs_readpage() know not to decrypt zeroes that were read from the
lower file in the grow_file() path.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
| -rw-r--r-- | fs/ecryptfs/ecryptfs_kernel.h | 25 | ||||
| -rw-r--r-- | fs/ecryptfs/inode.c | 1 | ||||
| -rw-r--r-- | fs/ecryptfs/mmap.c | 15 |
3 files changed, 14 insertions, 27 deletions
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index e00753496e3e..427478e29760 100644 --- a/fs/ecryptfs/ecryptfs_kernel.h +++ b/fs/ecryptfs/ecryptfs_kernel.h @@ -257,19 +257,18 @@ struct ecryptfs_filename { struct ecryptfs_crypt_stat { #define ECRYPTFS_STRUCT_INITIALIZED 0x00000001 #define ECRYPTFS_POLICY_APPLIED 0x00000002 -#define ECRYPTFS_NEW_FILE 0x00000004 -#define ECRYPTFS_ENCRYPTED 0x00000008 -#define ECRYPTFS_SECURITY_WARNING 0x00000010 -#define ECRYPTFS_ENABLE_HMAC 0x00000020 -#define ECRYPTFS_ENCRYPT_IV_PAGES 0x00000040 -#define ECRYPTFS_KEY_VALID 0x00000080 -#define ECRYPTFS_METADATA_IN_XATTR 0x00000100 -#define ECRYPTFS_VIEW_AS_ENCRYPTED 0x00000200 -#define ECRYPTFS_KEY_SET 0x00000400 -#define ECRYPTFS_ENCRYPT_FILENAMES 0x00000800 -#define ECRYPTFS_ENCFN_USE_MOUNT_FNEK 0x00001000 -#define ECRYPTFS_ENCFN_USE_FEK 0x00002000 -#define ECRYPTFS_UNLINK_SIGS 0x00004000 +#define ECRYPTFS_ENCRYPTED 0x00000004 +#define ECRYPTFS_SECURITY_WARNING 0x00000008 +#define ECRYPTFS_ENABLE_HMAC 0x00000010 +#define ECRYPTFS_ENCRYPT_IV_PAGES 0x00000020 +#define ECRYPTFS_KEY_VALID 0x00000040 +#define ECRYPTFS_METADATA_IN_XATTR 0x00000080 +#define ECRYPTFS_VIEW_AS_ENCRYPTED 0x00000100 +#define ECRYPTFS_KEY_SET 0x00000200 +#define ECRYPTFS_ENCRYPT_FILENAMES 0x00000400 +#define ECRYPTFS_ENCFN_USE_MOUNT_FNEK 0x00000800 +#define ECRYPTFS_ENCFN_USE_FEK 0x00001000 +#define ECRYPTFS_UNLINK_SIGS 0x00002000 u32 flags; unsigned int file_version; size_t iv_bytes; diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 8fa365acb789..f99051b7adab 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -161,7 +161,6 @@ static int ecryptfs_initialize_file(struct dentry *ecryptfs_dentry) crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED); goto out; } - crypt_stat->flags |= ECRYPTFS_NEW_FILE; ecryptfs_printk(KERN_DEBUG, "Initializing crypto context\n"); rc = ecryptfs_new_file_context(ecryptfs_dentry); if (rc) { diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index cc64fca89f8d..519af27db059 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -193,11 +193,7 @@ static int ecryptfs_readpage(struct file *file, struct page *page) &ecryptfs_inode_to_private(page->mapping->host)->crypt_stat; int rc = 0; - if (!crypt_stat - || !(crypt_stat->flags & ECRYPTFS_ENCRYPTED) - || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) { - ecryptfs_printk(KERN_DEBUG, - "Passing through unencrypted page\n"); + if (!crypt_stat || !(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { rc = ecryptfs_read_lower_page_segment(page, page->index, 0, PAGE_CACHE_SIZE, page->mapping->host); @@ -295,8 +291,7 @@ static int ecryptfs_write_begin(struct file *file, struct ecryptfs_crypt_stat *crypt_stat = &ecryptfs_inode_to_private(mapping->host)->crypt_stat; - if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED) - || (crypt_stat->flags & ECRYPTFS_NEW_FILE)) { + if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { rc = ecryptfs_read_lower_page_segment( page, index, 0, PAGE_CACHE_SIZE, mapping->host); if (rc) { @@ -487,12 +482,6 @@ static int ecryptfs_write_end(struct file *file, &ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat; int rc; - if (crypt_stat->flags & ECRYPTFS_NEW_FILE) { - ecryptfs_printk(KERN_DEBUG, "ECRYPTFS_NEW_FILE flag set in " - "crypt_stat at memory location [%p]\n", crypt_stat); - crypt_stat->flags &= ~(ECRYPTFS_NEW_FILE); - } else - ecryptfs_printk(KERN_DEBUG, "Not a new file\n"); ecryptfs_printk(KERN_DEBUG, "Calling fill_zeros_to_end_of_page" "(page w/ index = [0x%.16lx], to = [%d])\n", index, to); if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { |