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authorArnd Bergmann <arnd@arndb.de>2011-11-29 14:50:17 +0000
committerArnd Bergmann <arnd@arndb.de>2011-11-29 14:50:17 +0000
commit98014be39bda8277a5ad130bb274ed6eb18b74df (patch)
tree974620a47c9350ff9b3c06ffd2b49470bbda72ab /fs/ecryptfs/file.c
parentMerge branch 'fixes-dss' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes (diff)
parentARM: ux500: update defconfig (diff)
downloadwireguard-linux-98014be39bda8277a5ad130bb274ed6eb18b74df.tar.xz
wireguard-linux-98014be39bda8277a5ad130bb274ed6eb18b74df.zip
Merge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-stericsson into fixes
Diffstat (limited to 'fs/ecryptfs/file.c')
-rw-r--r--fs/ecryptfs/file.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index c6ac98cf9baa..d3f95f941c47 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -139,6 +139,27 @@ 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;
/**
@@ -349,7 +370,7 @@ const struct file_operations ecryptfs_main_fops = {
#ifdef CONFIG_COMPAT
.compat_ioctl = ecryptfs_compat_ioctl,
#endif
- .mmap = generic_file_mmap,
+ .mmap = ecryptfs_file_mmap,
.open = ecryptfs_open,
.flush = ecryptfs_flush,
.release = ecryptfs_release,