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[Qemu-devel] [PATCH] mmap.c: Reuse unmapped memory areas.
From: |
Edgar E. Iglesias |
Subject: |
[Qemu-devel] [PATCH] mmap.c: Reuse unmapped memory areas. |
Date: |
Sat, 16 Feb 2008 21:24:35 +0100 |
User-agent: |
Mutt/1.5.16 (2007-06-09) |
Try to rewind mmap_next_start when unmapping memory. Simple tests in
test-mmap.c now pass.
Best regards
--
Edgar E. Iglesias
Axis Communications AB
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 6292826..78a8162 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -385,6 +385,9 @@ int target_munmap(abi_ulong start, abi_ulong len)
real_end -= qemu_host_page_size;
}
+ if (start < mmap_next_start)
+ mmap_next_start = start;
+
/* unmap what we can */
if (real_start < real_end) {
ret = munmap(g2h(real_start), real_end - real_start);
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