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