commit fb6dc8e7ce1bb8bcd33aa8aa31fc0339a7a2ebe8
Author: Yiannis Pericleous <[EMAIL PROTECTED]>
Date: Fri Apr 27 18:13:29 2007 -0400
mmap: file revalidation
diff --git a/fs/unionfs/mmap.c b/fs/unionfs/mmap.c
index 57792d5..7d27bd8 100644
--- a/fs/unionfs/mmap.c
+++ b/fs/unionfs/mmap.c
@@ -162,6 +162,9 @@ int unionfs_readpage(struct file *file, struct page *page)
{
int err;
+ if ((err = unionfs_file_revalidate(file, 0)))
+ goto out_err;
+
err = unionfs_do_readpage(file, page);
/*
@@ -170,6 +173,7 @@ int unionfs_readpage(struct file *file, struct page *page)
* it
*/
+out_err:
unlock_page(page);
return err;
@@ -178,7 +182,7 @@ int unionfs_readpage(struct file *file, struct page *page)
int unionfs_prepare_write(struct file *file, struct page *page, unsigned from,
unsigned to)
{
- return 0;
+ return unionfs_file_revalidate(file, 1);
}
int unionfs_commit_write(struct file *file, struct page *page, unsigned from,
@@ -194,6 +198,9 @@ int unionfs_commit_write(struct file *file, struct page
*page, unsigned from,
BUG_ON(file == NULL);
+ if ((err = unionfs_file_revalidate(file, 1)))
+ goto out;
+
inode = page->mapping->host; /* CPW: Moved below
print_entry_location */
lower_inode = unionfs_lower_inode(inode);
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