From 0a49020502654605b7c4bc6f2eb2e745998914af Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 11 Jun 2009 02:09:53 +0000
Subject: [package] fuse24: introduce fuse package for brcm-2.4 (#5186)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16411 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/fuse24/patches/113-DCACHE_BUG.patch | 63 +++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 package/fuse24/patches/113-DCACHE_BUG.patch

(limited to 'package/fuse24/patches/113-DCACHE_BUG.patch')

diff --git a/package/fuse24/patches/113-DCACHE_BUG.patch b/package/fuse24/patches/113-DCACHE_BUG.patch
new file mode 100644
index 000000000..fdfbfef51
--- /dev/null
+++ b/package/fuse24/patches/113-DCACHE_BUG.patch
@@ -0,0 +1,63 @@
+diff -ruN fuse-2.5.3.orig/kernel/dev.c fuse-2.5.3/kernel/dev.c
+--- fuse-2.5.3.orig/kernel/dev.c	2006-02-02 19:04:52.000000000 +0200
++++ fuse-2.5.3/kernel/dev.c	2008-10-23 10:27:53.000000000 +0300
+@@ -512,6 +512,9 @@
+ {
+ 	unsigned long offset;
+ 	int err;
++#ifdef DCACHE_BUG
++	struct vm_area_struct *vma;
++#endif
+ 
+ 	unlock_request(cs->req);
+ 	fuse_copy_finish(cs);
+@@ -523,14 +526,22 @@
+ 		cs->nr_segs --;
+ 	}
+ 	down_read(&current->mm->mmap_sem);
++#ifndef DCACHE_BUG
+ 	err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0,
+ 			     &cs->pg, NULL);
++#else
++	err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0,
++			     &cs->pg, &vma);
++#endif
+ 	up_read(&current->mm->mmap_sem);
+ 	if (err < 0)
+ 		return err;
+ 	BUG_ON(err != 1);
+ 	offset = cs->addr % PAGE_SIZE;
+ 	cs->mapaddr = kmap_atomic(cs->pg, KM_USER0);
++#ifdef DCACHE_BUG
++	r4k_flush_cache_page(vma, cs->addr); 
++#endif
+ 	cs->buf = cs->mapaddr + offset;
+ 	cs->len = min(PAGE_SIZE - offset, cs->seglen);
+ 	cs->seglen -= cs->len;
+@@ -545,6 +556,11 @@
+ {
+ 	unsigned ncpy = min(*size, cs->len);
+ 	if (val) {
++#ifdef DCACHE_BUG
++		// patch from mailing list, it is very important, otherwise,
++		// can't mount, or ls mount point will hang
++		flush_cache_all();
++#endif
+ 		if (cs->write)
+ 			memcpy(cs->buf, *val, ncpy);
+ 		else
+diff -ruN fuse-2.5.3.orig/kernel/fuse_i.h fuse-2.5.3/kernel/fuse_i.h
+--- fuse-2.5.3.orig/kernel/fuse_i.h	2006-02-02 19:04:52.000000000 +0200
++++ fuse-2.5.3/kernel/fuse_i.h	2008-10-22 18:03:50.000000000 +0300
+@@ -45,6 +45,10 @@
+ #  endif
+ #endif
+ 
++//#if defined(__arm__) && LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
++#define DCACHE_BUG
++//#endif
++
+ #include "config.h"
+ #ifndef KERNEL_2_6
+ #  include <linux/config.h>
+
-- 
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