summaryrefslogtreecommitdiffstats
path: root/fs/ecryptfs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ecryptfs')
-rw-r--r--fs/ecryptfs/dentry.c3
-rw-r--r--fs/ecryptfs/ecryptfs_kernel.h16
-rw-r--r--fs/ecryptfs/file.c15
-rw-r--r--fs/ecryptfs/inode.c79
-rw-r--r--fs/ecryptfs/main.c5
-rw-r--r--fs/ecryptfs/mmap.c16
6 files changed, 49 insertions, 85 deletions
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 52d1e36dc746..329efcd3d8c9 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -25,6 +25,7 @@
#include <linux/dcache.h>
#include <linux/namei.h>
#include <linux/mount.h>
+#include <linux/fs_stack.h>
#include "ecryptfs_kernel.h"
/**
@@ -61,7 +62,7 @@ static int ecryptfs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
struct inode *lower_inode =
ecryptfs_inode_to_lower(dentry->d_inode);
- ecryptfs_copy_attr_all(dentry->d_inode, lower_inode);
+ fsstack_copy_attr_all(dentry->d_inode, lower_inode, NULL);
}
out:
return rc;
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index f992533d1692..afb64bdbe6ad 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -28,6 +28,8 @@
#include <keys/user-type.h>
#include <linux/fs.h>
+#include <linux/fs_stack.h>
+#include <linux/namei.h>
#include <linux/scatterlist.h>
/* Version verification for shared data structures w/ userspace */
@@ -227,8 +229,7 @@ struct ecryptfs_inode_info {
/* dentry private data. Each dentry must keep track of a lower
* vfsmount too. */
struct ecryptfs_dentry_info {
- struct dentry *wdi_dentry;
- struct vfsmount *lower_mnt;
+ struct path lower_path;
struct ecryptfs_crypt_stat *crypt_stat;
};
@@ -355,26 +356,26 @@ ecryptfs_set_dentry_private(struct dentry *dentry,
static inline struct dentry *
ecryptfs_dentry_to_lower(struct dentry *dentry)
{
- return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->wdi_dentry;
+ return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.dentry;
}
static inline void
ecryptfs_set_dentry_lower(struct dentry *dentry, struct dentry *lower_dentry)
{
- ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->wdi_dentry =
+ ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.dentry =
lower_dentry;
}
static inline struct vfsmount *
ecryptfs_dentry_to_lower_mnt(struct dentry *dentry)
{
- return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_mnt;
+ return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.mnt;
}
static inline void
ecryptfs_set_dentry_lower_mnt(struct dentry *dentry, struct vfsmount *lower_mnt)
{
- ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_mnt =
+ ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.mnt =
lower_mnt;
}
@@ -413,9 +414,6 @@ int ecryptfs_encode_filename(struct ecryptfs_crypt_stat *crypt_stat,
const char *name, int length,
char **encoded_name);
struct dentry *ecryptfs_lower_dentry(struct dentry *this_dentry);
-void ecryptfs_copy_attr_atime(struct inode *dest, const struct inode *src);
-void ecryptfs_copy_attr_all(struct inode *dest, const struct inode *src);
-void ecryptfs_copy_inode_size(struct inode *dst, const struct inode *src);
void ecryptfs_dump_hex(char *data, int bytes);
int virt_to_scatterlist(const void *addr, int size, struct scatterlist *sg,
int sg_size);
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 42099e779a56..c5a2e5298f15 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -30,6 +30,7 @@
#include <linux/security.h>
#include <linux/smp_lock.h>
#include <linux/compat.h>
+#include <linux/fs_stack.h>
#include "ecryptfs_kernel.h"
/**
@@ -75,7 +76,7 @@ static loff_t ecryptfs_llseek(struct file *file, loff_t offset, int origin)
}
ecryptfs_printk(KERN_DEBUG, "new_end_pos = [0x%.16x]\n", new_end_pos);
if (expanding_file) {
- rc = ecryptfs_truncate(file->f_dentry, new_end_pos);
+ rc = ecryptfs_truncate(file->f_path.dentry, new_end_pos);
if (rc) {
rv = rc;
ecryptfs_printk(KERN_ERR, "Error on attempt to "
@@ -116,8 +117,8 @@ static ssize_t ecryptfs_read_update_atime(struct kiocb *iocb,
if (-EIOCBQUEUED == rc)
rc = wait_on_sync_kiocb(iocb);
if (rc >= 0) {
- lower_dentry = ecryptfs_dentry_to_lower(file->f_dentry);
- lower_vfsmount = ecryptfs_dentry_to_lower_mnt(file->f_dentry);
+ lower_dentry = ecryptfs_dentry_to_lower(file->f_path.dentry);
+ lower_vfsmount = ecryptfs_dentry_to_lower_mnt(file->f_path.dentry);
touch_atime(lower_vfsmount, lower_dentry);
}
return rc;
@@ -176,10 +177,10 @@ static int ecryptfs_readdir(struct file *file, void *dirent, filldir_t filldir)
lower_file = ecryptfs_file_to_lower(file);
lower_file->f_pos = file->f_pos;
- inode = file->f_dentry->d_inode;
+ inode = file->f_path.dentry->d_inode;
memset(&buf, 0, sizeof(buf));
buf.dirent = dirent;
- buf.dentry = file->f_dentry;
+ buf.dentry = file->f_path.dentry;
buf.filldir = filldir;
retry:
buf.filldir_called = 0;
@@ -192,7 +193,7 @@ retry:
goto retry;
file->f_pos = lower_file->f_pos;
if (rc >= 0)
- ecryptfs_copy_attr_atime(inode, lower_file->f_dentry->d_inode);
+ fsstack_copy_attr_atime(inode, lower_file->f_path.dentry->d_inode);
return rc;
}
@@ -239,7 +240,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
int rc = 0;
struct ecryptfs_crypt_stat *crypt_stat = NULL;
struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
- struct dentry *ecryptfs_dentry = file->f_dentry;
+ struct dentry *ecryptfs_dentry = file->f_path.dentry;
/* Private value of ecryptfs_dentry allocated in
* ecryptfs_lookup() */
struct dentry *lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 8a1945a84c36..11f5e5076aef 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -30,6 +30,7 @@
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/crypto.h>
+#include <linux/fs_stack.h>
#include "ecryptfs_kernel.h"
static struct dentry *lock_parent(struct dentry *dentry)
@@ -53,48 +54,6 @@ static void unlock_dir(struct dentry *dir)
dput(dir);
}
-void ecryptfs_copy_inode_size(struct inode *dst, const struct inode *src)
-{
- i_size_write(dst, i_size_read((struct inode *)src));
- dst->i_blocks = src->i_blocks;
-}
-
-void ecryptfs_copy_attr_atime(struct inode *dest, const struct inode *src)
-{
- dest->i_atime = src->i_atime;
-}
-
-static void ecryptfs_copy_attr_times(struct inode *dest,
- const struct inode *src)
-{
- dest->i_atime = src->i_atime;
- dest->i_mtime = src->i_mtime;
- dest->i_ctime = src->i_ctime;
-}
-
-static void ecryptfs_copy_attr_timesizes(struct inode *dest,
- const struct inode *src)
-{
- dest->i_atime = src->i_atime;
- dest->i_mtime = src->i_mtime;
- dest->i_ctime = src->i_ctime;
- ecryptfs_copy_inode_size(dest, src);
-}
-
-void ecryptfs_copy_attr_all(struct inode *dest, const struct inode *src)
-{
- dest->i_mode = src->i_mode;
- dest->i_nlink = src->i_nlink;
- dest->i_uid = src->i_uid;
- dest->i_gid = src->i_gid;
- dest->i_rdev = src->i_rdev;
- dest->i_atime = src->i_atime;
- dest->i_mtime = src->i_mtime;
- dest->i_ctime = src->i_ctime;
- dest->i_blkbits = src->i_blkbits;
- dest->i_flags = src->i_flags;
-}
-
/**
* ecryptfs_create_underlying_file
* @lower_dir_inode: inode of the parent in the lower fs of the new file
@@ -171,8 +130,8 @@ ecryptfs_do_create(struct inode *directory_inode,
ecryptfs_printk(KERN_ERR, "Failure in ecryptfs_interpose\n");
goto out_lock;
}
- ecryptfs_copy_attr_timesizes(directory_inode,
- lower_dir_dentry->d_inode);
+ fsstack_copy_attr_times(directory_inode, lower_dir_dentry->d_inode);
+ fsstack_copy_inode_size(directory_inode, lower_dir_dentry->d_inode);
out_lock:
unlock_dir(lower_dir_dentry);
out:
@@ -196,7 +155,7 @@ static int grow_file(struct dentry *ecryptfs_dentry, struct file *lower_file,
struct ecryptfs_file_info tmp_file_info;
memset(&fake_file, 0, sizeof(fake_file));
- fake_file.f_dentry = ecryptfs_dentry;
+ fake_file.f_path.dentry = ecryptfs_dentry;
memset(&tmp_file_info, 0, sizeof(tmp_file_info));
ecryptfs_set_file_private(&fake_file, &tmp_file_info);
ecryptfs_set_file_lower(&fake_file, lower_file);
@@ -365,7 +324,7 @@ static struct dentry *ecryptfs_lookup(struct inode *dir, struct dentry *dentry,
"d_name.name = [%s]\n", lower_dentry,
lower_dentry->d_name.name);
lower_inode = lower_dentry->d_inode;
- ecryptfs_copy_attr_atime(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_attr_atime(dir, lower_dir_dentry->d_inode);
BUG_ON(!atomic_read(&lower_dentry->d_count));
ecryptfs_set_dentry_private(dentry,
kmem_cache_alloc(ecryptfs_dentry_info_cache,
@@ -462,7 +421,8 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,
rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb, 0);
if (rc)
goto out_lock;
- ecryptfs_copy_attr_timesizes(dir, lower_new_dentry->d_inode);
+ fsstack_copy_attr_times(dir, lower_new_dentry->d_inode);
+ fsstack_copy_inode_size(dir, lower_new_dentry->d_inode);
old_dentry->d_inode->i_nlink =
ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink;
i_size_write(new_dentry->d_inode, file_size_save);
@@ -488,7 +448,7 @@ static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry)
printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
goto out_unlock;
}
- ecryptfs_copy_attr_times(dir, lower_dir_inode);
+ fsstack_copy_attr_times(dir, lower_dir_inode);
dentry->d_inode->i_nlink =
ecryptfs_inode_to_lower(dentry->d_inode)->i_nlink;
dentry->d_inode->i_ctime = dir->i_ctime;
@@ -527,7 +487,8 @@ static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry,
rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
if (rc)
goto out_lock;
- ecryptfs_copy_attr_timesizes(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
out_lock:
unlock_dir(lower_dir_dentry);
dput(lower_dentry);
@@ -550,7 +511,8 @@ static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
if (rc)
goto out;
- ecryptfs_copy_attr_timesizes(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
dir->i_nlink = lower_dir_dentry->d_inode->i_nlink;
out:
unlock_dir(lower_dir_dentry);
@@ -573,7 +535,7 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)
dput(lower_dentry);
if (!rc)
d_delete(lower_dentry);
- ecryptfs_copy_attr_times(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
dir->i_nlink = lower_dir_dentry->d_inode->i_nlink;
unlock_dir(lower_dir_dentry);
if (!rc)
@@ -597,7 +559,8 @@ ecryptfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
if (rc)
goto out;
- ecryptfs_copy_attr_timesizes(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
out:
unlock_dir(lower_dir_dentry);
if (!dentry->d_inode)
@@ -626,9 +589,9 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
lower_new_dir_dentry->d_inode, lower_new_dentry);
if (rc)
goto out_lock;
- ecryptfs_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode);
+ fsstack_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode, NULL);
if (new_dir != old_dir)
- ecryptfs_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode);
+ fsstack_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode, NULL);
out_lock:
unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
dput(lower_new_dentry->d_parent);
@@ -684,8 +647,8 @@ ecryptfs_readlink(struct dentry *dentry, char __user * buf, int bufsiz)
rc = -EFAULT;
}
kfree(decoded_name);
- ecryptfs_copy_attr_atime(dentry->d_inode,
- lower_dentry->d_inode);
+ fsstack_copy_attr_atime(dentry->d_inode,
+ lower_dentry->d_inode);
}
out_free_lower_buf:
kfree(lower_buf);
@@ -791,7 +754,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
* the file in the underlying filesystem so that the
* truncation has an effect there as well. */
memset(&fake_ecryptfs_file, 0, sizeof(fake_ecryptfs_file));
- fake_ecryptfs_file.f_dentry = dentry;
+ fake_ecryptfs_file.f_path.dentry = dentry;
/* Released at out_free: label */
ecryptfs_set_file_private(&fake_ecryptfs_file,
kmem_cache_alloc(ecryptfs_file_info_cache,
@@ -915,7 +878,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
}
rc = notify_change(lower_dentry, ia);
out:
- ecryptfs_copy_attr_all(inode, lower_inode);
+ fsstack_copy_attr_all(inode, lower_inode, NULL);
return rc;
}
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 3ede12b25933..d0541ae8faba 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -35,6 +35,7 @@
#include <linux/pagemap.h>
#include <linux/key.h>
#include <linux/parser.h>
+#include <linux/fs_stack.h>
#include "ecryptfs_kernel.h"
/**
@@ -112,10 +113,10 @@ int ecryptfs_interpose(struct dentry *lower_dentry, struct dentry *dentry,
d_add(dentry, inode);
else
d_instantiate(dentry, inode);
- ecryptfs_copy_attr_all(inode, lower_inode);
+ fsstack_copy_attr_all(inode, lower_inode, NULL);
/* This size will be overwritten for real files w/ headers and
* other metadata */
- ecryptfs_copy_inode_size(inode, lower_inode);
+ fsstack_copy_inode_size(inode, lower_inode);
out:
return rc;
}
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 924dd90a4cf5..06843d24f239 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -51,7 +51,7 @@ static struct page *ecryptfs_get1page(struct file *file, int index)
struct inode *inode;
struct address_space *mapping;
- dentry = file->f_dentry;
+ dentry = file->f_path.dentry;
inode = dentry->d_inode;
mapping = inode->i_mapping;
page = read_cache_page(mapping, index,
@@ -84,7 +84,7 @@ int write_zeros(struct file *file, pgoff_t index, int start, int num_zeros);
int ecryptfs_fill_zeros(struct file *file, loff_t new_length)
{
int rc = 0;
- struct dentry *dentry = file->f_dentry;
+ struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
pgoff_t old_end_page_index = 0;
pgoff_t index = old_end_page_index;
@@ -218,7 +218,7 @@ int ecryptfs_do_readpage(struct file *file, struct page *page,
char *lower_page_data;
const struct address_space_operations *lower_a_ops;
- dentry = file->f_dentry;
+ dentry = file->f_path.dentry;
lower_file = ecryptfs_file_to_lower(file);
lower_dentry = ecryptfs_dentry_to_lower(dentry);
inode = dentry->d_inode;
@@ -275,9 +275,9 @@ static int ecryptfs_readpage(struct file *file, struct page *page)
int rc = 0;
struct ecryptfs_crypt_stat *crypt_stat;
- BUG_ON(!(file && file->f_dentry && file->f_dentry->d_inode));
- crypt_stat =
- &ecryptfs_inode_to_private(file->f_dentry->d_inode)->crypt_stat;
+ BUG_ON(!(file && file->f_path.dentry && file->f_path.dentry->d_inode));
+ crypt_stat = &ecryptfs_inode_to_private(file->f_path.dentry->d_inode)
+ ->crypt_stat;
if (!crypt_stat
|| !ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_ENCRYPTED)
|| ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE)) {
@@ -638,8 +638,8 @@ static int ecryptfs_commit_write(struct file *file, struct page *page,
lower_inode = ecryptfs_inode_to_lower(inode);
lower_file = ecryptfs_file_to_lower(file);
mutex_lock(&lower_inode->i_mutex);
- crypt_stat =
- &ecryptfs_inode_to_private(file->f_dentry->d_inode)->crypt_stat;
+ crypt_stat = &ecryptfs_inode_to_private(file->f_path.dentry->d_inode)
+ ->crypt_stat;
if (ECRYPTFS_CHECK_FLAG(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);
OpenPOWER on IntegriCloud