Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[pandora-kernel.git] / fs / ecryptfs / mmap.c

diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index bd1d57f..564a1fa 100644 (file)
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -338,7 +338,8 @@ static int ecryptfs_write_begin(struct file *file,
                        if (prev_page_end_size
                            >= i_size_read(page->mapping->host)) {
                                zero_user(page, 0, PAGE_CACHE_SIZE);
-                       } else {
+                               SetPageUptodate(page);
+                       } else if (len < PAGE_CACHE_SIZE) {
                                rc = ecryptfs_decrypt_page(page);
                                if (rc) {
                                        printk(KERN_ERR "%s: Error decrypting "
@@ -348,8 +349,8 @@ static int ecryptfs_write_begin(struct file *file,
                                        ClearPageUptodate(page);
                                        goto out;
                                }
+                               SetPageUptodate(page);
                        }
-                       SetPageUptodate(page);
                }
        }
        /* If creating a page or more of holes, zero them out via truncate.
@@ -499,6 +500,13 @@ static int ecryptfs_write_end(struct file *file,
                }
                goto out;
        }
+       if (!PageUptodate(page)) {
+               if (copied < PAGE_CACHE_SIZE) {
+                       rc = 0;
+                       goto out;
+               }
+               SetPageUptodate(page);
+       }
        /* Fills in zeros if 'to' goes beyond inode size */
        rc = fill_zeros_to_end_of_page(page, to);
        if (rc) {