[PATCH] v9fs: fix overzealous dropping of dentry which breaks dcache

[linux.git] / fs / romfs / inode.c

diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c
index c74f382dabba2782af852cb15d67782f1ab10335..0a13859fd57bc0cb8d5302e2fc933bd3a943f88d 100644 (file)
--- a/fs/romfs/inode.c
+++ b/fs/romfs/inode.c
@@ -418,7 +418,7 @@ static int
 romfs_readpage(struct file *file, struct page * page)
 {
        struct inode *inode = page->mapping->host;
-       unsigned long offset, avail, readlen;
+       loff_t offset, avail, readlen;
        void *buf;
        int result = -EIO;
 
@@ -429,8 +429,8 @@ romfs_readpage(struct file *file, struct page * page)
                goto err_out;
 
        /* 32 bit warning -- but not for us :) */
-       offset = page->index << PAGE_CACHE_SHIFT;
-       if (offset < inode->i_size) {
+       offset = page_offset(page);
+       if (offset < i_size_read(inode)) {
                avail = inode->i_size-offset;
                readlen = min_t(unsigned long, avail, PAGE_SIZE);
                if (romfs_copyfrom(inode, buf, ROMFS_I(inode)->i_dataoffset+offset, readlen) == readlen) {