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Changes for mm/mremap.c@1.8
andrea@de[marcelo]
Return proper do_munmap() error code
--- 1.7/mm/mremap.c Wed Feb 18 04:53:26 2004
+++ 1.8/mm/mremap.c Wed Feb 18 04:53:26 2004
@@ -258,16 +258,20 @@
if ((addr <= new_addr) && (addr+old_len) > new_addr)
goto out;
- do_munmap(current->mm, new_addr, new_len);
+ ret = do_munmap(current->mm, new_addr, new_len);
+ if (ret && new_len)
+ goto out;
}
/*
* Always allow a shrinking remap: that just unmaps
* the unnecessary pages..
*/
- ret = addr;
if (old_len >= new_len) {
- do_munmap(current->mm, addr+new_len, old_len - new_len);
+ ret = do_munmap(current->mm, addr+new_len, old_len - new_len);
+ if (ret && old_len != new_len)
+ goto out;
+ ret = addr;
if (!(flags & MREMAP_FIXED) || (new_addr == addr))
goto out;
}
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