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Diffstat (limited to 'fs/ecryptfs/mmap.c')
-rw-r--r--fs/ecryptfs/mmap.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 2b6fe1e6e8ba..245c2dc02d5c 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -32,6 +32,7 @@
32#include <linux/file.h> 32#include <linux/file.h>
33#include <linux/crypto.h> 33#include <linux/crypto.h>
34#include <linux/scatterlist.h> 34#include <linux/scatterlist.h>
35#include <asm/unaligned.h>
35#include "ecryptfs_kernel.h" 36#include "ecryptfs_kernel.h"
36 37
37/** 38/**
@@ -372,7 +373,6 @@ out:
372 */ 373 */
373static int ecryptfs_write_inode_size_to_header(struct inode *ecryptfs_inode) 374static int ecryptfs_write_inode_size_to_header(struct inode *ecryptfs_inode)
374{ 375{
375 u64 file_size;
376 char *file_size_virt; 376 char *file_size_virt;
377 int rc; 377 int rc;
378 378
@@ -381,9 +381,7 @@ static int ecryptfs_write_inode_size_to_header(struct inode *ecryptfs_inode)
381 rc = -ENOMEM; 381 rc = -ENOMEM;
382 goto out; 382 goto out;
383 } 383 }
384 file_size = (u64)i_size_read(ecryptfs_inode); 384 put_unaligned_be64(i_size_read(ecryptfs_inode), file_size_virt);
385 file_size = cpu_to_be64(file_size);
386 memcpy(file_size_virt, &file_size, sizeof(u64));
387 rc = ecryptfs_write_lower(ecryptfs_inode, file_size_virt, 0, 385 rc = ecryptfs_write_lower(ecryptfs_inode, file_size_virt, 0,
388 sizeof(u64)); 386 sizeof(u64));
389 kfree(file_size_virt); 387 kfree(file_size_virt);
@@ -403,7 +401,6 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode)
403 struct dentry *lower_dentry = 401 struct dentry *lower_dentry =
404 ecryptfs_inode_to_private(ecryptfs_inode)->lower_file->f_dentry; 402 ecryptfs_inode_to_private(ecryptfs_inode)->lower_file->f_dentry;
405 struct inode *lower_inode = lower_dentry->d_inode; 403 struct inode *lower_inode = lower_dentry->d_inode;
406 u64 file_size;
407 int rc; 404 int rc;
408 405
409 if (!lower_inode->i_op->getxattr || !lower_inode->i_op->setxattr) { 406 if (!lower_inode->i_op->getxattr || !lower_inode->i_op->setxattr) {
@@ -424,9 +421,7 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode)
424 xattr_virt, PAGE_CACHE_SIZE); 421 xattr_virt, PAGE_CACHE_SIZE);
425 if (size < 0) 422 if (size < 0)
426 size = 8; 423 size = 8;
427 file_size = (u64)i_size_read(ecryptfs_inode); 424 put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt);
428 file_size = cpu_to_be64(file_size);
429 memcpy(xattr_virt, &file_size, sizeof(u64));
430 rc = lower_inode->i_op->setxattr(lower_dentry, ECRYPTFS_XATTR_NAME, 425 rc = lower_inode->i_op->setxattr(lower_dentry, ECRYPTFS_XATTR_NAME,
431 xattr_virt, size, 0); 426 xattr_virt, size, 0);
432 mutex_unlock(&lower_inode->i_mutex); 427 mutex_unlock(&lower_inode->i_mutex);