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-rw-r--r--fs/ecryptfs/file.c33
-rw-r--r--fs/ecryptfs/inode.c6
-rw-r--r--fs/ecryptfs/mmap.c39
3 files changed, 15 insertions, 63 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index baf8b0550391..44ce5c6a541d 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -138,27 +138,6 @@ out:
return rc;
}
-static void ecryptfs_vma_close(struct vm_area_struct *vma)
-{
- filemap_write_and_wait(vma->vm_file->f_mapping);
-}
-
-static const struct vm_operations_struct ecryptfs_file_vm_ops = {
- .close = ecryptfs_vma_close,
- .fault = filemap_fault,
-};
-
-static int ecryptfs_file_mmap(struct file *file, struct vm_area_struct *vma)
-{
- int rc;
-
- rc = generic_file_mmap(file, vma);
- if (!rc)
- vma->vm_ops = &ecryptfs_file_vm_ops;
-
- return rc;
-}
-
struct kmem_cache *ecryptfs_file_info_cache;
static int read_or_initialize_metadata(struct dentry *dentry)
@@ -311,15 +290,7 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
static int
ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
- int rc = 0;
-
- rc = generic_file_fsync(file, start, end, datasync);
- if (rc)
- goto out;
- rc = vfs_fsync_range(ecryptfs_file_to_lower(file), start, end,
- datasync);
-out:
- return rc;
+ return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
}
static int ecryptfs_fasync(int fd, struct file *file, int flag)
@@ -388,7 +359,7 @@ const struct file_operations ecryptfs_main_fops = {
#ifdef CONFIG_COMPAT
.compat_ioctl = ecryptfs_compat_ioctl,
#endif
- .mmap = ecryptfs_file_mmap,
+ .mmap = generic_file_mmap,
.open = ecryptfs_open,
.flush = ecryptfs_flush,
.release = ecryptfs_release,
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 2d4143f8f5c9..769fb8524aeb 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -981,12 +981,6 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
goto out;
}
- if (S_ISREG(inode->i_mode)) {
- rc = filemap_write_and_wait(inode->i_mapping);
- if (rc)
- goto out;
- fsstack_copy_attr_all(inode, lower_inode);
- }
memcpy(&lower_ia, ia, sizeof(lower_ia));
if (ia->ia_valid & ATTR_FILE)
lower_ia.ia_file = ecryptfs_file_to_lower(ia->ia_file);
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index a46b3a8fee1e..bd1d57f98f74 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -66,18 +66,6 @@ static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
{
int rc;
- /*
- * Refuse to write the page out if we are called from reclaim context
- * since our writepage() path may potentially allocate memory when
- * calling into the lower fs vfs_write() which may in turn invoke
- * us again.
- */
- if (current->flags & PF_MEMALLOC) {
- redirty_page_for_writepage(wbc, page);
- rc = 0;
- goto out;
- }
-
rc = ecryptfs_encrypt_page(page);
if (rc) {
ecryptfs_printk(KERN_WARNING, "Error encrypting "
@@ -498,7 +486,6 @@ static int ecryptfs_write_end(struct file *file,
struct ecryptfs_crypt_stat *crypt_stat =
&ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;
int rc;
- int need_unlock_page = 1;
ecryptfs_printk(KERN_DEBUG, "Calling fill_zeros_to_end_of_page"
"(page w/ index = [0x%.16lx], to = [%d])\n", index, to);
@@ -519,26 +506,26 @@ static int ecryptfs_write_end(struct file *file,
"zeros in page with index = [0x%.16lx]\n", index);
goto out;
}
- set_page_dirty(page);
- unlock_page(page);
- need_unlock_page = 0;
+ rc = ecryptfs_encrypt_page(page);
+ if (rc) {
+ ecryptfs_printk(KERN_WARNING, "Error encrypting page (upper "
+ "index [0x%.16lx])\n", index);
+ goto out;
+ }
if (pos + copied > i_size_read(ecryptfs_inode)) {
i_size_write(ecryptfs_inode, pos + copied);
ecryptfs_printk(KERN_DEBUG, "Expanded file size to "
"[0x%.16llx]\n",
(unsigned long long)i_size_read(ecryptfs_inode));
- balance_dirty_pages_ratelimited(mapping);
- rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
- if (rc) {
- printk(KERN_ERR "Error writing inode size to metadata; "
- "rc = [%d]\n", rc);
- goto out;
- }
}
- rc = copied;
+ rc = ecryptfs_write_inode_size_to_metadata(ecryptfs_inode);
+ if (rc)
+ printk(KERN_ERR "Error writing inode size to metadata; "
+ "rc = [%d]\n", rc);
+ else
+ rc = copied;
out:
- if (need_unlock_page)
- unlock_page(page);
+ unlock_page(page);
page_cache_release(page);
return rc;
}